From 5a2223ca26b1a34e131b5b9a63599d9426d2c25c Mon Sep 17 00:00:00 2001 From: "Michael S. Tsirkin" Date: Sun, 26 Jan 2014 12:31:27 +0200 Subject: pcihp: reduce number of device check events PIIX created a made-up value for the UP register since it was read by guest 32 times for each interrupt. There's no reason to do this for the new PCIHP: register is only read once for each interrupt, so clean up code by making read act as an interrupt acknowledgement: the new UP register clear on read. In this way we cut down the number of bus rescans by a factor of 32, and drop a bunch of code that's now unused. Signed-off-by: Michael S. Tsirkin --- hw/acpi/pcihp.c | 21 +++++---------------- include/hw/acpi/pcihp.h | 2 +- 2 files changed, 6 insertions(+), 17 deletions(-) diff --git a/hw/acpi/pcihp.c b/hw/acpi/pcihp.c index 3fa3d7c290..4345f5d70d 100644 --- a/hw/acpi/pcihp.c +++ b/hw/acpi/pcihp.c @@ -116,7 +116,6 @@ static void acpi_pcihp_eject_slot(AcpiPciHpState *s, unsigned bsel, unsigned slo { BusChild *kid, *next; int slot = ffs(slots) - 1; - bool slot_free = true; PCIBus *bus = acpi_pcihp_find_hotplug_bus(s, bsel); if (!bus) { @@ -125,21 +124,17 @@ static void acpi_pcihp_eject_slot(AcpiPciHpState *s, unsigned bsel, unsigned slo /* Mark request as complete */ s->acpi_pcihp_pci_status[bsel].down &= ~(1U << slot); + s->acpi_pcihp_pci_status[bsel].up &= ~(1U << slot); QTAILQ_FOREACH_SAFE(kid, &bus->qbus.children, sibling, next) { DeviceState *qdev = kid->child; PCIDevice *dev = PCI_DEVICE(qdev); if (PCI_SLOT(dev->devfn) == slot) { - if (acpi_pcihp_pc_no_hotplug(s, dev)) { - slot_free = false; - } else { + if (!acpi_pcihp_pc_no_hotplug(s, dev)) { object_unparent(OBJECT(qdev)); } } } - if (slot_free) { - s->acpi_pcihp_pci_status[bsel].device_present &= ~(1U << slot); - } } static void acpi_pcihp_update_hotplug_bus(AcpiPciHpState *s, int bsel) @@ -153,7 +148,6 @@ static void acpi_pcihp_update_hotplug_bus(AcpiPciHpState *s, int bsel) } s->acpi_pcihp_pci_status[bsel].hotplug_enable = ~0; - s->acpi_pcihp_pci_status[bsel].device_present = 0; if (!bus) { return; @@ -166,8 +160,6 @@ static void acpi_pcihp_update_hotplug_bus(AcpiPciHpState *s, int bsel) if (acpi_pcihp_pc_no_hotplug(s, pdev)) { s->acpi_pcihp_pci_status[bsel].hotplug_enable &= ~(1U << slot); } - - s->acpi_pcihp_pci_status[bsel].device_present |= (1U << slot); } } @@ -187,7 +179,7 @@ void acpi_pcihp_reset(AcpiPciHpState *s) static void enable_device(AcpiPciHpState *s, unsigned bsel, int slot) { - s->acpi_pcihp_pci_status[bsel].device_present |= (1U << slot); + s->acpi_pcihp_pci_status[bsel].up |= (1U << slot); } static void disable_device(AcpiPciHpState *s, unsigned bsel, int slot) @@ -208,7 +200,6 @@ int acpi_pcihp_device_hotplug(AcpiPciHpState *s, PCIDevice *dev, * it is present on boot, no hotplug event is necessary. We do send an * event when the device is disabled later. */ if (state == PCI_COLDPLUG_ENABLED) { - s->acpi_pcihp_pci_status[bsel].device_present |= (1U << slot); return 0; } @@ -233,10 +224,8 @@ static uint64_t pci_read(void *opaque, hwaddr addr, unsigned int size) switch (addr) { case PCI_UP_BASE - PCI_HOTPLUG_ADDR: - /* Manufacture an "up" value to cause a device check on any hotplug - * slot with a device. Extra device checks are harmless. */ - val = s->acpi_pcihp_pci_status[bsel].device_present & - s->acpi_pcihp_pci_status[bsel].hotplug_enable; + val = s->acpi_pcihp_pci_status[bsel].up; + s->acpi_pcihp_pci_status[bsel].up = 0; ACPI_PCIHP_DPRINTF("pci_up_read %" PRIu32 "\n", val); break; case PCI_DOWN_BASE - PCI_HOTPLUG_ADDR: diff --git a/include/hw/acpi/pcihp.h b/include/hw/acpi/pcihp.h index 6230e60954..aa297c2450 100644 --- a/include/hw/acpi/pcihp.h +++ b/include/hw/acpi/pcihp.h @@ -32,7 +32,7 @@ #include "hw/pci/pci.h" /* for PCIHotplugState */ typedef struct AcpiPciHpPciStatus { - uint32_t up; /* deprecated, maintained for migration compatibility */ + uint32_t up; uint32_t down; uint32_t hotplug_enable; uint32_t device_present; -- cgit v1.2.1 From 8f5001f9ede507940317531bc83154288e7a1d0a Mon Sep 17 00:00:00 2001 From: Igor Mammedov Date: Mon, 3 Feb 2014 11:44:57 +0100 Subject: pcihp: replace enable|disable_device() with oneliners enable_device() and disable_device() functions aren't reused anywere, so replace them with respective oneliners at call sites. Signed-off-by: Igor Mammedov Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin --- hw/acpi/pcihp.c | 14 ++------------ 1 file changed, 2 insertions(+), 12 deletions(-) diff --git a/hw/acpi/pcihp.c b/hw/acpi/pcihp.c index 4345f5d70d..464739aaa1 100644 --- a/hw/acpi/pcihp.c +++ b/hw/acpi/pcihp.c @@ -177,16 +177,6 @@ void acpi_pcihp_reset(AcpiPciHpState *s) acpi_pcihp_update(s); } -static void enable_device(AcpiPciHpState *s, unsigned bsel, int slot) -{ - s->acpi_pcihp_pci_status[bsel].up |= (1U << slot); -} - -static void disable_device(AcpiPciHpState *s, unsigned bsel, int slot) -{ - s->acpi_pcihp_pci_status[bsel].down |= (1U << slot); -} - int acpi_pcihp_device_hotplug(AcpiPciHpState *s, PCIDevice *dev, PCIHotplugState state) { @@ -204,9 +194,9 @@ int acpi_pcihp_device_hotplug(AcpiPciHpState *s, PCIDevice *dev, } if (state == PCI_HOTPLUG_ENABLED) { - enable_device(s, bsel, slot); + s->acpi_pcihp_pci_status[bsel].up |= (1U << slot); } else { - disable_device(s, bsel, slot); + s->acpi_pcihp_pci_status[bsel].down |= (1U << slot); } return 0; -- cgit v1.2.1 From a7b613cf68b65d04ef2b1b601bb18f31e8ca0c11 Mon Sep 17 00:00:00 2001 From: Igor Mammedov Date: Mon, 3 Feb 2014 11:44:58 +0100 Subject: pcihp: make PCI hotplug mmio handlers indifferent to PCI_HOTPLUG_ADDR ... removes dependency of mmio handler on PCI_HOTPLUG_ADDR. It will be needed in case of Q35 where base could be different. Signed-off-by: Igor Mammedov Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin --- hw/acpi/pcihp.c | 24 ++++++++++++------------ 1 file changed, 12 insertions(+), 12 deletions(-) diff --git a/hw/acpi/pcihp.c b/hw/acpi/pcihp.c index 464739aaa1..64c8cf28f1 100644 --- a/hw/acpi/pcihp.c +++ b/hw/acpi/pcihp.c @@ -48,11 +48,11 @@ #define PCI_HOTPLUG_ADDR 0xae00 #define PCI_HOTPLUG_SIZE 0x0014 -#define PCI_UP_BASE 0xae00 -#define PCI_DOWN_BASE 0xae04 -#define PCI_EJ_BASE 0xae08 -#define PCI_RMV_BASE 0xae0c -#define PCI_SEL_BASE 0xae10 +#define PCI_UP_BASE 0x0000 +#define PCI_DOWN_BASE 0x0004 +#define PCI_EJ_BASE 0x0008 +#define PCI_RMV_BASE 0x000c +#define PCI_SEL_BASE 0x0010 typedef struct AcpiPciHpFind { int bsel; @@ -213,24 +213,24 @@ static uint64_t pci_read(void *opaque, hwaddr addr, unsigned int size) } switch (addr) { - case PCI_UP_BASE - PCI_HOTPLUG_ADDR: + case PCI_UP_BASE: val = s->acpi_pcihp_pci_status[bsel].up; s->acpi_pcihp_pci_status[bsel].up = 0; ACPI_PCIHP_DPRINTF("pci_up_read %" PRIu32 "\n", val); break; - case PCI_DOWN_BASE - PCI_HOTPLUG_ADDR: + case PCI_DOWN_BASE: val = s->acpi_pcihp_pci_status[bsel].down; ACPI_PCIHP_DPRINTF("pci_down_read %" PRIu32 "\n", val); break; - case PCI_EJ_BASE - PCI_HOTPLUG_ADDR: + case PCI_EJ_BASE: /* No feature defined yet */ ACPI_PCIHP_DPRINTF("pci_features_read %" PRIu32 "\n", val); break; - case PCI_RMV_BASE - PCI_HOTPLUG_ADDR: + case PCI_RMV_BASE: val = s->acpi_pcihp_pci_status[bsel].hotplug_enable; ACPI_PCIHP_DPRINTF("pci_rmv_read %" PRIu32 "\n", val); break; - case PCI_SEL_BASE - PCI_HOTPLUG_ADDR: + case PCI_SEL_BASE: val = s->hotplug_select; ACPI_PCIHP_DPRINTF("pci_sel_read %" PRIu32 "\n", val); default: @@ -245,7 +245,7 @@ static void pci_write(void *opaque, hwaddr addr, uint64_t data, { AcpiPciHpState *s = opaque; switch (addr) { - case PCI_EJ_BASE - PCI_HOTPLUG_ADDR: + case PCI_EJ_BASE: if (s->hotplug_select >= ACPI_PCIHP_MAX_HOTPLUG_BUS) { break; } @@ -253,7 +253,7 @@ static void pci_write(void *opaque, hwaddr addr, uint64_t data, ACPI_PCIHP_DPRINTF("pciej write %" HWADDR_PRIx " <== %" PRIu64 "\n", addr, data); break; - case PCI_SEL_BASE - PCI_HOTPLUG_ADDR: + case PCI_SEL_BASE: s->hotplug_select = data; ACPI_PCIHP_DPRINTF("pcisel write %" HWADDR_PRIx " <== %" PRIu64 "\n", addr, data); -- cgit v1.2.1 From 99d09dd32820f5702031e3c08c81f8c209dc2220 Mon Sep 17 00:00:00 2001 From: Igor Mammedov Date: Mon, 3 Feb 2014 11:44:59 +0100 Subject: pcihp: make pci_read() mmio calback compatible with legacy ACPI hotplug due to recent change introduced by: "pcihp: reduce number of device check events" 'up' field is cleared right after it's read. This is incompatible with legacy BIOS ACPI code where PCNF ACPI method reads this field 32 times. To make pci_read mmio callback compatible with legacy 'up' behavior, pcihp code will need to know in which mode it runs add 'legacy_piix' field to AcpiPciHpState structure and alter register behavior accordingly. Signed-off-by: Igor Mammedov Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin --- hw/acpi/pcihp.c | 7 +++++-- hw/acpi/piix4.c | 3 ++- include/hw/acpi/pcihp.h | 3 ++- 3 files changed, 9 insertions(+), 4 deletions(-) diff --git a/hw/acpi/pcihp.c b/hw/acpi/pcihp.c index 64c8cf28f1..974f01c114 100644 --- a/hw/acpi/pcihp.c +++ b/hw/acpi/pcihp.c @@ -215,7 +215,9 @@ static uint64_t pci_read(void *opaque, hwaddr addr, unsigned int size) switch (addr) { case PCI_UP_BASE: val = s->acpi_pcihp_pci_status[bsel].up; - s->acpi_pcihp_pci_status[bsel].up = 0; + if (!s->legacy_piix) { + s->acpi_pcihp_pci_status[bsel].up = 0; + } ACPI_PCIHP_DPRINTF("pci_up_read %" PRIu32 "\n", val); break; case PCI_DOWN_BASE: @@ -273,9 +275,10 @@ static const MemoryRegionOps acpi_pcihp_io_ops = { }; void acpi_pcihp_init(AcpiPciHpState *s, PCIBus *root_bus, - MemoryRegion *address_space_io) + MemoryRegion *address_space_io, bool bridges_enabled) { s->root= root_bus; + s->legacy_piix = !bridges_enabled; memory_region_init_io(&s->io, NULL, &acpi_pcihp_io_ops, s, "acpi-pci-hotplug", PCI_HOTPLUG_SIZE); diff --git a/hw/acpi/piix4.c b/hw/acpi/piix4.c index 5d55a3c222..2aedfe5998 100644 --- a/hw/acpi/piix4.c +++ b/hw/acpi/piix4.c @@ -695,7 +695,8 @@ static void piix4_acpi_system_hot_add_init(MemoryRegion *parent, memory_region_add_subregion(parent, GPE_BASE, &s->io_gpe); if (s->use_acpi_pci_hotplug) { - acpi_pcihp_init(&s->acpi_pci_hotplug, bus, parent); + acpi_pcihp_init(&s->acpi_pci_hotplug, bus, parent, + s->use_acpi_pci_hotplug); } else { memory_region_init_io(&s->io_pci, OBJECT(s), &piix4_pci_ops, s, "acpi-pci-hotplug", PCI_HOTPLUG_SIZE); diff --git a/include/hw/acpi/pcihp.h b/include/hw/acpi/pcihp.h index aa297c2450..02d3ce33a1 100644 --- a/include/hw/acpi/pcihp.h +++ b/include/hw/acpi/pcihp.h @@ -46,10 +46,11 @@ typedef struct AcpiPciHpState { uint32_t hotplug_select; PCIBus *root; MemoryRegion io; + bool legacy_piix; } AcpiPciHpState; void acpi_pcihp_init(AcpiPciHpState *, PCIBus *root, - MemoryRegion *address_space_io); + MemoryRegion *address_space_io, bool bridges_enabled); /* Invoke on device hotplug */ int acpi_pcihp_device_hotplug(AcpiPciHpState *, PCIDevice *, -- cgit v1.2.1 From a1b4d9eff9e8dec8b827bd744c7d670d3cdf2fb8 Mon Sep 17 00:00:00 2001 From: Igor Mammedov Date: Mon, 3 Feb 2014 11:45:00 +0100 Subject: pcihp: remove unused AcpiPciHpPciStatus.device_present field Remove now unused 'device_present' field wich was obsoleted by patch "pcihp: reduce number of device check events" Signed-off-by: Igor Mammedov Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin --- include/hw/acpi/pcihp.h | 1 - 1 file changed, 1 deletion(-) diff --git a/include/hw/acpi/pcihp.h b/include/hw/acpi/pcihp.h index 02d3ce33a1..1fd90e1609 100644 --- a/include/hw/acpi/pcihp.h +++ b/include/hw/acpi/pcihp.h @@ -35,7 +35,6 @@ typedef struct AcpiPciHpPciStatus { uint32_t up; uint32_t down; uint32_t hotplug_enable; - uint32_t device_present; } AcpiPciHpPciStatus; #define ACPI_PCIHP_PROP_BSEL "acpi-pcihp-bsel" -- cgit v1.2.1 From e358edc8e90d580443b824e4ef799e137377ad86 Mon Sep 17 00:00:00 2001 From: Igor Mammedov Date: Mon, 3 Feb 2014 11:45:01 +0100 Subject: hw:piix4:acpi: reuse pcihp code for legacy PCI hotplug reduces acpi PCI hotplug code duplication by ~200LOC Signed-off-by: Igor Mammedov Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin --- hw/acpi/pcihp.c | 23 ++++-- hw/acpi/piix4.c | 211 ++++-------------------------------------------- include/hw/acpi/pcihp.h | 1 + 3 files changed, 34 insertions(+), 201 deletions(-) diff --git a/hw/acpi/pcihp.c b/hw/acpi/pcihp.c index 974f01c114..1ce6fc2768 100644 --- a/hw/acpi/pcihp.c +++ b/hw/acpi/pcihp.c @@ -46,8 +46,9 @@ # define ACPI_PCIHP_DPRINTF(format, ...) do { } while (0) #endif -#define PCI_HOTPLUG_ADDR 0xae00 -#define PCI_HOTPLUG_SIZE 0x0014 +#define ACPI_PCIHP_ADDR 0xae00 +#define ACPI_PCIHP_SIZE 0x0014 +#define ACPI_PCIHP_LEGACY_SIZE 0x000f #define PCI_UP_BASE 0x0000 #define PCI_DOWN_BASE 0x0004 #define PCI_EJ_BASE 0x0008 @@ -277,12 +278,24 @@ static const MemoryRegionOps acpi_pcihp_io_ops = { void acpi_pcihp_init(AcpiPciHpState *s, PCIBus *root_bus, MemoryRegion *address_space_io, bool bridges_enabled) { + uint16_t io_size = ACPI_PCIHP_SIZE; + s->root= root_bus; s->legacy_piix = !bridges_enabled; + + if (s->legacy_piix) { + unsigned *bus_bsel = g_malloc(sizeof *bus_bsel); + + io_size = ACPI_PCIHP_LEGACY_SIZE; + + *bus_bsel = ACPI_PCIHP_BSEL_DEFAULT; + object_property_add_uint32_ptr(OBJECT(root_bus), ACPI_PCIHP_PROP_BSEL, + bus_bsel, NULL); + } + memory_region_init_io(&s->io, NULL, &acpi_pcihp_io_ops, s, - "acpi-pci-hotplug", - PCI_HOTPLUG_SIZE); - memory_region_add_subregion(address_space_io, PCI_HOTPLUG_ADDR, &s->io); + "acpi-pci-hotplug", io_size); + memory_region_add_subregion(address_space_io, ACPI_PCIHP_ADDR, &s->io); } const VMStateDescription vmstate_acpi_pcihp_pci_status = { diff --git a/hw/acpi/piix4.c b/hw/acpi/piix4.c index 2aedfe5998..7a0efcbe6d 100644 --- a/hw/acpi/piix4.c +++ b/hw/acpi/piix4.c @@ -44,13 +44,6 @@ #define GPE_BASE 0xafe0 #define GPE_LEN 4 -#define PCI_HOTPLUG_ADDR 0xae00 -#define PCI_HOTPLUG_SIZE 0x000f -#define PCI_UP_BASE 0xae00 -#define PCI_DOWN_BASE 0xae04 -#define PCI_EJ_BASE 0xae08 -#define PCI_RMV_BASE 0xae0c - #define PIIX4_PCI_HOTPLUG_STATUS 2 struct pci_status { @@ -80,13 +73,6 @@ typedef struct PIIX4PMState { Notifier machine_ready; Notifier powerdown_notifier; - /* for legacy pci hotplug (compatible with qemu 1.6 and older) */ - MemoryRegion io_pci; - struct pci_status pci0_status; - uint32_t pci0_hotplug_enable; - uint32_t pci0_slot_device_present; - - /* for new pci hotplug (with PCI2PCI bridge support) */ AcpiPciHpState acpi_pci_hotplug; bool use_acpi_pci_hotplug; @@ -170,17 +156,6 @@ static void pm_write_config(PCIDevice *d, } } -static void vmstate_pci_status_pre_save(void *opaque) -{ - struct pci_status *pci0_status = opaque; - PIIX4PMState *s = container_of(pci0_status, PIIX4PMState, pci0_status); - - /* We no longer track up, so build a safe value for migrating - * to a version that still does... of course these might get lost - * by an old buggy implementation, but we try. */ - pci0_status->up = s->pci0_slot_device_present & s->pci0_hotplug_enable; -} - static int vmstate_acpi_post_load(void *opaque, int version_id) { PIIX4PMState *s = opaque; @@ -216,10 +191,9 @@ static const VMStateDescription vmstate_pci_status = { .version_id = 1, .minimum_version_id = 1, .minimum_version_id_old = 1, - .pre_save = vmstate_pci_status_pre_save, .fields = (VMStateField []) { - VMSTATE_UINT32(up, struct pci_status), - VMSTATE_UINT32(down, struct pci_status), + VMSTATE_UINT32(up, struct AcpiPciHpPciStatus), + VMSTATE_UINT32(down, struct AcpiPciHpPciStatus), VMSTATE_END_OF_LIST() } }; @@ -256,7 +230,8 @@ static int acpi_load_old(QEMUFile *f, void *opaque, int version_id) qemu_get_be16s(f, &temp); } - ret = vmstate_load_state(f, &vmstate_pci_status, &s->pci0_status, 1); + ret = vmstate_load_state(f, &vmstate_pci_status, + &s->acpi_pci_hotplug.acpi_pcihp_pci_status[ACPI_PCIHP_BSEL_DEFAULT], 1); return ret; } @@ -294,70 +269,18 @@ static const VMStateDescription vmstate_acpi = { VMSTATE_TIMER(ar.tmr.timer, PIIX4PMState), VMSTATE_INT64(ar.tmr.overflow_time, PIIX4PMState), VMSTATE_STRUCT(ar.gpe, PIIX4PMState, 2, vmstate_gpe, ACPIGPE), - VMSTATE_STRUCT_TEST(pci0_status, PIIX4PMState, - vmstate_test_no_use_acpi_pci_hotplug, - 2, vmstate_pci_status, - struct pci_status), + VMSTATE_STRUCT_TEST( + acpi_pci_hotplug.acpi_pcihp_pci_status[ACPI_PCIHP_BSEL_DEFAULT], + PIIX4PMState, + vmstate_test_no_use_acpi_pci_hotplug, + 2, vmstate_pci_status, + struct AcpiPciHpPciStatus), VMSTATE_PCI_HOTPLUG(acpi_pci_hotplug, PIIX4PMState, vmstate_test_use_acpi_pci_hotplug), VMSTATE_END_OF_LIST() } }; -static void acpi_piix_eject_slot(PIIX4PMState *s, unsigned slots) -{ - BusChild *kid, *next; - BusState *bus = qdev_get_parent_bus(DEVICE(s)); - int slot = ffs(slots) - 1; - bool slot_free = true; - - /* Mark request as complete */ - s->pci0_status.down &= ~(1U << slot); - - QTAILQ_FOREACH_SAFE(kid, &bus->children, sibling, next) { - DeviceState *qdev = kid->child; - PCIDevice *dev = PCI_DEVICE(qdev); - PCIDeviceClass *pc = PCI_DEVICE_GET_CLASS(dev); - if (PCI_SLOT(dev->devfn) == slot) { - if (pc->no_hotplug) { - slot_free = false; - } else { - object_unparent(OBJECT(qdev)); - } - } - } - if (slot_free) { - s->pci0_slot_device_present &= ~(1U << slot); - } -} - -static void piix4_update_hotplug(PIIX4PMState *s) -{ - BusState *bus = qdev_get_parent_bus(DEVICE(s)); - BusChild *kid, *next; - - /* Execute any pending removes during reset */ - while (s->pci0_status.down) { - acpi_piix_eject_slot(s, s->pci0_status.down); - } - - s->pci0_hotplug_enable = ~0; - s->pci0_slot_device_present = 0; - - QTAILQ_FOREACH_SAFE(kid, &bus->children, sibling, next) { - DeviceState *qdev = kid->child; - PCIDevice *pdev = PCI_DEVICE(qdev); - PCIDeviceClass *pc = PCI_DEVICE_GET_CLASS(pdev); - int slot = PCI_SLOT(pdev->devfn); - - if (pc->no_hotplug) { - s->pci0_hotplug_enable &= ~(1U << slot); - } - - s->pci0_slot_device_present |= (1U << slot); - } -} - static void piix4_reset(void *opaque) { PIIX4PMState *s = opaque; @@ -377,11 +300,7 @@ static void piix4_reset(void *opaque) pci_conf[0x5B] = 0x02; } pm_io_space_update(s); - if (s->use_acpi_pci_hotplug) { - acpi_pcihp_reset(&s->acpi_pci_hotplug); - } else { - piix4_update_hotplug(s); - } + acpi_pcihp_reset(&s->acpi_pci_hotplug); } static void piix4_pm_powerdown_req(Notifier *n, void *opaque) @@ -428,6 +347,8 @@ static void piix4_pm_machine_ready(Notifier *n, void *opaque) if (s->use_acpi_pci_hotplug) { pci_for_each_bus(d->bus, piix4_update_bus_hotplug, s); + } else { + piix4_update_bus_hotplug(d->bus, s); } } @@ -621,60 +542,6 @@ static const MemoryRegionOps piix4_gpe_ops = { .endianness = DEVICE_LITTLE_ENDIAN, }; -static uint64_t pci_read(void *opaque, hwaddr addr, unsigned int size) -{ - PIIX4PMState *s = opaque; - uint32_t val = 0; - - switch (addr) { - case PCI_UP_BASE - PCI_HOTPLUG_ADDR: - /* Manufacture an "up" value to cause a device check on any hotplug - * slot with a device. Extra device checks are harmless. */ - val = s->pci0_slot_device_present & s->pci0_hotplug_enable; - PIIX4_DPRINTF("pci_up_read %" PRIu32 "\n", val); - break; - case PCI_DOWN_BASE - PCI_HOTPLUG_ADDR: - val = s->pci0_status.down; - PIIX4_DPRINTF("pci_down_read %" PRIu32 "\n", val); - break; - case PCI_EJ_BASE - PCI_HOTPLUG_ADDR: - /* No feature defined yet */ - PIIX4_DPRINTF("pci_features_read %" PRIu32 "\n", val); - break; - case PCI_RMV_BASE - PCI_HOTPLUG_ADDR: - val = s->pci0_hotplug_enable; - break; - default: - break; - } - - return val; -} - -static void pci_write(void *opaque, hwaddr addr, uint64_t data, - unsigned int size) -{ - switch (addr) { - case PCI_EJ_BASE - PCI_HOTPLUG_ADDR: - acpi_piix_eject_slot(opaque, (uint32_t)data); - PIIX4_DPRINTF("pciej write %" HWADDR_PRIx " <== %" PRIu64 "\n", - addr, data); - break; - default: - break; - } -} - -static const MemoryRegionOps piix4_pci_ops = { - .read = pci_read, - .write = pci_write, - .endianness = DEVICE_LITTLE_ENDIAN, - .valid = { - .min_access_size = 4, - .max_access_size = 4, - }, -}; - static void piix4_cpu_added_req(Notifier *n, void *opaque) { PIIX4PMState *s = container_of(n, PIIX4PMState, cpu_added_notifier); @@ -684,9 +551,6 @@ static void piix4_cpu_added_req(Notifier *n, void *opaque) acpi_update_sci(&s->ar, s->irq); } -static int piix4_device_hotplug(DeviceState *qdev, PCIDevice *dev, - PCIHotplugState state); - static void piix4_acpi_system_hot_add_init(MemoryRegion *parent, PCIBus *bus, PIIX4PMState *s) { @@ -694,56 +558,11 @@ static void piix4_acpi_system_hot_add_init(MemoryRegion *parent, "acpi-gpe0", GPE_LEN); memory_region_add_subregion(parent, GPE_BASE, &s->io_gpe); - if (s->use_acpi_pci_hotplug) { - acpi_pcihp_init(&s->acpi_pci_hotplug, bus, parent, - s->use_acpi_pci_hotplug); - } else { - memory_region_init_io(&s->io_pci, OBJECT(s), &piix4_pci_ops, s, - "acpi-pci-hotplug", PCI_HOTPLUG_SIZE); - memory_region_add_subregion(parent, PCI_HOTPLUG_ADDR, - &s->io_pci); - pci_bus_hotplug(bus, piix4_device_hotplug, DEVICE(s)); - } + acpi_pcihp_init(&s->acpi_pci_hotplug, bus, parent, + s->use_acpi_pci_hotplug); AcpiCpuHotplug_init(parent, OBJECT(s), &s->gpe_cpu, PIIX4_CPU_HOTPLUG_IO_BASE); s->cpu_added_notifier.notify = piix4_cpu_added_req; qemu_register_cpu_added_notifier(&s->cpu_added_notifier); } - -static void enable_device(PIIX4PMState *s, int slot) -{ - s->ar.gpe.sts[0] |= PIIX4_PCI_HOTPLUG_STATUS; - s->pci0_slot_device_present |= (1U << slot); -} - -static void disable_device(PIIX4PMState *s, int slot) -{ - s->ar.gpe.sts[0] |= PIIX4_PCI_HOTPLUG_STATUS; - s->pci0_status.down |= (1U << slot); -} - -static int piix4_device_hotplug(DeviceState *qdev, PCIDevice *dev, - PCIHotplugState state) -{ - int slot = PCI_SLOT(dev->devfn); - PIIX4PMState *s = PIIX4_PM(qdev); - - /* Don't send event when device is enabled during qemu machine creation: - * it is present on boot, no hotplug event is necessary. We do send an - * event when the device is disabled later. */ - if (state == PCI_COLDPLUG_ENABLED) { - s->pci0_slot_device_present |= (1U << slot); - return 0; - } - - if (state == PCI_HOTPLUG_ENABLED) { - enable_device(s, slot); - } else { - disable_device(s, slot); - } - - acpi_update_sci(&s->ar, s->irq); - - return 0; -} diff --git a/include/hw/acpi/pcihp.h b/include/hw/acpi/pcihp.h index 1fd90e1609..0a90e4a968 100644 --- a/include/hw/acpi/pcihp.h +++ b/include/hw/acpi/pcihp.h @@ -39,6 +39,7 @@ typedef struct AcpiPciHpPciStatus { #define ACPI_PCIHP_PROP_BSEL "acpi-pcihp-bsel" #define ACPI_PCIHP_MAX_HOTPLUG_BUS 256 +#define ACPI_PCIHP_BSEL_DEFAULT 0x0 typedef struct AcpiPciHpState { AcpiPciHpPciStatus acpi_pcihp_pci_status[ACPI_PCIHP_MAX_HOTPLUG_BUS]; -- cgit v1.2.1 From 35b307126cc99165881d24bb62cc52f21275cb54 Mon Sep 17 00:00:00 2001 From: "Michael S. Tsirkin" Date: Tue, 4 Feb 2014 20:04:21 +0200 Subject: qtest: don't report signals if qtest driver enabled MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit qtest driver always uses signals to kill qemu no need to report it, whatever the accelerator state. Add API to detect qtest driver, and suppress reporting signals in this case. Reported-by: Andreas Färber Signed-off-by: Michael S. Tsirkin --- include/sysemu/qtest.h | 2 ++ qtest.c | 5 +++++ vl.c | 2 +- 3 files changed, 8 insertions(+), 1 deletion(-) diff --git a/include/sysemu/qtest.h b/include/sysemu/qtest.h index 112a661ac4..6aca8e4c1f 100644 --- a/include/sysemu/qtest.h +++ b/include/sysemu/qtest.h @@ -23,6 +23,8 @@ static inline bool qtest_enabled(void) return qtest_allowed; } +bool qtest_driver(void); + int qtest_init_accel(void); void qtest_init(const char *qtest_chrdev, const char *qtest_log); diff --git a/qtest.c b/qtest.c index dcf1301229..a738afc724 100644 --- a/qtest.c +++ b/qtest.c @@ -528,3 +528,8 @@ void qtest_init(const char *qtest_chrdev, const char *qtest_log) qtest_chr = chr; } + +bool qtest_driver(void) +{ + return qtest_chr; +} diff --git a/vl.c b/vl.c index 383be1b617..a7b00cdd37 100644 --- a/vl.c +++ b/vl.c @@ -1750,7 +1750,7 @@ static int qemu_shutdown_requested(void) static void qemu_kill_report(void) { - if (!qtest_enabled() && shutdown_signal != -1) { + if (!qtest_driver() && shutdown_signal != -1) { fprintf(stderr, "qemu: terminating on signal %d", shutdown_signal); if (shutdown_pid == 0) { /* This happens for eg ^C at the terminal, so it's worth -- cgit v1.2.1 From d160024fe52cd4970ee80904dbdc7a22ddf86c96 Mon Sep 17 00:00:00 2001 From: "Michael S. Tsirkin" Date: Tue, 4 Feb 2014 23:29:30 +0200 Subject: pc_piix: enable legacy hotplug for Xen xenfv has no fwcfg and so does not load acpi from QEMU. as such new acpi features don't work. Reported-by: Sander Eikelenboom Signed-off-by: Michael S. Tsirkin --- hw/i386/pc_piix.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/hw/i386/pc_piix.c b/hw/i386/pc_piix.c index a327d71fb1..1acd2b2a20 100644 --- a/hw/i386/pc_piix.c +++ b/hw/i386/pc_piix.c @@ -793,6 +793,17 @@ static QEMUMachine xenfv_machine = { .max_cpus = HVM_MAX_VCPUS, .default_machine_opts = "accel=xen", .hot_add_cpu = pc_hot_add_cpu, + .compat_props = (GlobalProperty[]) { + /* xenfv has no fwcfg and so does not load acpi from QEMU. + * as such new acpi features don't work. + */ + { + .driver = "PIIX4_PM", + .property = "acpi-pci-hotplug-with-bridge-support", + .value = "off", + }, + { /* end of list */ } + }, }; #endif -- cgit v1.2.1 From 7454e51d2b26ca6c2fd6fb77c4adc3ab11ec590f Mon Sep 17 00:00:00 2001 From: "Michael S. Tsirkin" Date: Sun, 2 Feb 2014 22:45:28 +0200 Subject: pc.c: better error message on initrd sizing failure Signed-off-by: Michael S. Tsirkin --- hw/i386/pc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/hw/i386/pc.c b/hw/i386/pc.c index 348b15f267..e715a3312d 100644 --- a/hw/i386/pc.c +++ b/hw/i386/pc.c @@ -835,8 +835,8 @@ static void load_linux(FWCfgState *fw_cfg, initrd_size = get_image_size(initrd_filename); if (initrd_size < 0) { - fprintf(stderr, "qemu: error reading initrd %s\n", - initrd_filename); + fprintf(stderr, "qemu: error reading initrd %s: %s\n", + initrd_filename, strerror(errno)); exit(1); } -- cgit v1.2.1 From a1483f88b6e21dd3ea481a021e5d4f7f273204c6 Mon Sep 17 00:00:00 2001 From: "Michael S. Tsirkin" Date: Wed, 5 Feb 2014 21:57:55 +0200 Subject: loader: document that errno is set Document that get_image_size sets errno on failure. Suggested-by: Peter Maydell Reviewed-by: Eric Blake Signed-off-by: Michael S. Tsirkin --- include/hw/loader.h | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/include/hw/loader.h b/include/hw/loader.h index 7a23d6bdc1..91b01224a3 100644 --- a/include/hw/loader.h +++ b/include/hw/loader.h @@ -4,6 +4,13 @@ #include "hw/nvram/fw_cfg.h" /* loader.c */ +/** + * get_image_size: retrieve size of an image file + * @filename: Path to the image file + * + * Returns the size of the image file on success, -1 otherwise. + * On error, errno is also set as appropriate. + */ int get_image_size(const char *filename); int load_image(const char *filename, uint8_t *addr); /* deprecated */ int load_image_targphys(const char *filename, hwaddr, -- cgit v1.2.1 From 9f117d41841e13ca29cc2a10ac03258339ea1f8b Mon Sep 17 00:00:00 2001 From: Igor Mammedov Date: Wed, 5 Feb 2014 16:36:44 +0100 Subject: define hotplug interface Provide a generic hotplug interface for hotplug handlers. Intended for replacing hotplug mechanism used by PCI/PCIE/SHPC code and will be used for memory hotplug. Signed-off-by: Igor Mammedov Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin --- hw/core/Makefile.objs | 1 + hw/core/hotplug.c | 48 +++++++++++++++++++++++++++++++ include/hw/hotplug.h | 78 +++++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 127 insertions(+) create mode 100644 hw/core/hotplug.c create mode 100644 include/hw/hotplug.h diff --git a/hw/core/Makefile.objs b/hw/core/Makefile.objs index 950146c6ff..9e324befd6 100644 --- a/hw/core/Makefile.objs +++ b/hw/core/Makefile.objs @@ -2,6 +2,7 @@ common-obj-y += qdev.o qdev-properties.o # irq.o needed for qdev GPIO handling: common-obj-y += irq.o +common-obj-y += hotplug.o common-obj-$(CONFIG_EMPTY_SLOT) += empty_slot.o common-obj-$(CONFIG_XILINX_AXI) += stream.o diff --git a/hw/core/hotplug.c b/hw/core/hotplug.c new file mode 100644 index 0000000000..5573d9d2d9 --- /dev/null +++ b/hw/core/hotplug.c @@ -0,0 +1,48 @@ +/* + * Hotplug handler interface. + * + * Copyright (c) 2014 Red Hat Inc. + * + * Authors: + * Igor Mammedov , + * + * This work is licensed under the terms of the GNU GPL, version 2 or later. + * See the COPYING file in the top-level directory. + */ +#include "hw/hotplug.h" +#include "qemu/module.h" + +void hotplug_handler_plug(HotplugHandler *plug_handler, + DeviceState *plugged_dev, + Error **errp) +{ + HotplugHandlerClass *hdc = HOTPLUG_HANDLER_GET_CLASS(plug_handler); + + if (hdc->plug) { + hdc->plug(plug_handler, plugged_dev, errp); + } +} + +void hotplug_handler_unplug(HotplugHandler *plug_handler, + DeviceState *plugged_dev, + Error **errp) +{ + HotplugHandlerClass *hdc = HOTPLUG_HANDLER_GET_CLASS(plug_handler); + + if (hdc->unplug) { + hdc->unplug(plug_handler, plugged_dev, errp); + } +} + +static const TypeInfo hotplug_handler_info = { + .name = TYPE_HOTPLUG_HANDLER, + .parent = TYPE_INTERFACE, + .class_size = sizeof(HotplugHandlerClass), +}; + +static void hotplug_handler_register_types(void) +{ + type_register_static(&hotplug_handler_info); +} + +type_init(hotplug_handler_register_types) diff --git a/include/hw/hotplug.h b/include/hw/hotplug.h new file mode 100644 index 0000000000..a6533cb0b1 --- /dev/null +++ b/include/hw/hotplug.h @@ -0,0 +1,78 @@ +/* + * Hotplug handler interface. + * + * Copyright (c) 2014 Red Hat Inc. + * + * Authors: + * Igor Mammedov , + * + * This work is licensed under the terms of the GNU GPL, version 2 or later. + * See the COPYING file in the top-level directory. + */ +#ifndef HOTPLUG_H +#define HOTPLUG_H + +#include "qom/object.h" +#include "qemu/typedefs.h" + +#define TYPE_HOTPLUG_HANDLER "hotplug-handler" + +#define HOTPLUG_HANDLER_CLASS(klass) \ + OBJECT_CLASS_CHECK(HotplugHandlerClass, (klass), TYPE_HOTPLUG_HANDLER) +#define HOTPLUG_HANDLER_GET_CLASS(obj) \ + OBJECT_GET_CLASS(HotplugHandlerClass, (obj), TYPE_HOTPLUG_HANDLER) +#define HOTPLUG_HANDLER(obj) \ + INTERFACE_CHECK(HotplugHandler, (obj), TYPE_HOTPLUG_HANDLER) + + +typedef struct HotplugHandler { + /* */ + Object Parent; +} HotplugHandler; + +/** + * hotplug_fn: + * @plug_handler: a device performing plug/uplug action + * @plugged_dev: a device that has been (un)plugged + * @errp: returns an error if this function fails + */ +typedef void (*hotplug_fn)(HotplugHandler *plug_handler, + DeviceState *plugged_dev, Error **errp); + +/** + * HotplugDeviceClass: + * + * Interface to be implemented by a device performing + * hardware (un)plug functions. + * + * @parent: Opaque parent interface. + * @plug: plug callback. + * @unplug: unplug callback. + */ +typedef struct HotplugHandlerClass { + /* */ + InterfaceClass parent; + + /* */ + hotplug_fn plug; + hotplug_fn unplug; +} HotplugHandlerClass; + +/** + * hotplug_handler_plug: + * + * Call #HotplugHandlerClass.plug callback of @plug_handler. + */ +void hotplug_handler_plug(HotplugHandler *plug_handler, + DeviceState *plugged_dev, + Error **errp); + +/** + * hotplug_handler_unplug: + * + * Call #HotplugHandlerClass.unplug callback of @plug_handler. + */ +void hotplug_handler_unplug(HotplugHandler *plug_handler, + DeviceState *plugged_dev, + Error **errp); +#endif -- cgit v1.2.1 From 0ee4de6ce1d403b3d8017b340cec772c3c5c106f Mon Sep 17 00:00:00 2001 From: Igor Mammedov Date: Wed, 5 Feb 2014 16:36:45 +0100 Subject: qdev: add to BusState "hotplug-handler" link It will allow to reuse field with different BUSes, reducing code duplication. Field is intended for replacing 'hotplug_qdev' field in PCIBus and also will allow to avoid adding equivalent field to DimmBus with possiblitity to refactor other BUSes to use it instead of custom field. In addition once all users of allow_hotplug field are converted to new API, link could replace allow_hotplug field in qdev hotplug code. Signed-off-by: Igor Mammedov Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin --- hw/core/qdev.c | 4 ++++ include/hw/qdev-core.h | 12 ++++++++++++ 2 files changed, 16 insertions(+) diff --git a/hw/core/qdev.c b/hw/core/qdev.c index 82a9123038..c9f0c330e2 100644 --- a/hw/core/qdev.c +++ b/hw/core/qdev.c @@ -32,6 +32,7 @@ #include "qapi/visitor.h" #include "qapi/qmp/qjson.h" #include "monitor/monitor.h" +#include "hw/hotplug.h" int qdev_hotplug = 0; static bool qdev_hot_added = false; @@ -870,6 +871,9 @@ static void qbus_initfn(Object *obj) BusState *bus = BUS(obj); QTAILQ_INIT(&bus->children); + object_property_add_link(obj, QDEV_HOTPLUG_HANDLER_PROPERTY, + TYPE_HOTPLUG_HANDLER, + (Object **)&bus->hotplug_handler, NULL); } static char *default_bus_get_fw_dev_path(DeviceState *dev) diff --git a/include/hw/qdev-core.h b/include/hw/qdev-core.h index 2c4f140b9c..41ec533acb 100644 --- a/include/hw/qdev-core.h +++ b/include/hw/qdev-core.h @@ -8,6 +8,7 @@ #include "qom/object.h" #include "hw/irq.h" #include "qapi/error.h" +#include "hw/hotplug.h" enum { DEV_NVECTORS_UNSPECIFIED = -1, @@ -180,14 +181,18 @@ typedef struct BusChild { QTAILQ_ENTRY(BusChild) sibling; } BusChild; +#define QDEV_HOTPLUG_HANDLER_PROPERTY "hotplug-handler" + /** * BusState: + * @hotplug_device: link to a hotplug device associated with bus. */ struct BusState { Object obj; DeviceState *parent; const char *name; int allow_hotplug; + HotplugHandler *hotplug_handler; int max_index; QTAILQ_HEAD(ChildrenHead, BusChild) children; QLIST_ENTRY(BusState) sibling; @@ -321,4 +326,11 @@ extern int qdev_hotplug; char *qdev_get_dev_path(DeviceState *dev); +static inline void qbus_set_hotplug_handler(BusState *bus, DeviceState *handler, + Error **errp) +{ + object_property_set_link(OBJECT(bus), OBJECT(handler), + QDEV_HOTPLUG_HANDLER_PROPERTY, errp); + bus->allow_hotplug = 1; +} #endif -- cgit v1.2.1 From 1a37eca107cece3ed454bae29eef0bd1fac4a244 Mon Sep 17 00:00:00 2001 From: Igor Mammedov Date: Wed, 5 Feb 2014 16:36:46 +0100 Subject: qdev: add "hotpluggable" property to Device Currently it's possible to make PCIDevice not hotpluggable by using no_hotplug field of PCIDeviceClass. However it limits this only to PCI devices and prevents from generalizing hotplug code. So add similar field to DeviceClass so it could be reused with other Devices and would allow to replace PCI specific hotplug callbacks with generic implementation. Following patches will replace PCIDeviceClass.no_hotplug with this new property. In addition expose field as "hotpluggable" readonly property, to make it possible to read its value via QOM interface. Make DeviceClass hotpluggable by default as it was assumed before. Signed-off-by: Igor Mammedov Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin --- hw/core/qdev.c | 29 +++++++++++++++++++++++++++++ include/hw/qdev-core.h | 3 +++ 2 files changed, 32 insertions(+) diff --git a/hw/core/qdev.c b/hw/core/qdev.c index c9f0c330e2..5c864dbfa7 100644 --- a/hw/core/qdev.c +++ b/hw/core/qdev.c @@ -215,6 +215,12 @@ void qdev_unplug(DeviceState *dev, Error **errp) } assert(dc->unplug != NULL); + if (!dc->hotpluggable) { + error_set(errp, QERR_DEVICE_NO_HOTPLUG, + object_get_typename(OBJECT(dev))); + return; + } + qdev_hot_removed = true; if (dc->unplug(dev) < 0) { @@ -694,6 +700,11 @@ static void device_set_realized(Object *obj, bool value, Error **err) DeviceClass *dc = DEVICE_GET_CLASS(dev); Error *local_err = NULL; + if (dev->hotplugged && !dc->hotpluggable) { + error_set(err, QERR_DEVICE_NO_HOTPLUG, object_get_typename(obj)); + return; + } + if (value && !dev->realized) { if (!obj->parent && local_err == NULL) { static int unattached_count; @@ -734,6 +745,14 @@ static void device_set_realized(Object *obj, bool value, Error **err) dev->realized = value; } +static bool device_get_hotpluggable(Object *obj, Error **err) +{ + DeviceClass *dc = DEVICE_GET_CLASS(obj); + DeviceState *dev = DEVICE(obj); + + return dc->hotpluggable && dev->parent_bus->allow_hotplug; +} + static void device_initfn(Object *obj) { DeviceState *dev = DEVICE(obj); @@ -750,6 +769,8 @@ static void device_initfn(Object *obj) object_property_add_bool(obj, "realized", device_get_realized, device_set_realized, NULL); + object_property_add_bool(obj, "hotpluggable", + device_get_hotpluggable, NULL, NULL); class = object_get_class(OBJECT(dev)); do { @@ -786,6 +807,14 @@ static void device_class_base_init(ObjectClass *class, void *data) * so do not propagate them to the subclasses. */ klass->props = NULL; + + /* by default all devices were considered as hotpluggable, + * so with intent to check it in generic qdev_unplug() / + * device_set_realized() functions make every device + * hotpluggable. Devices that shouldn't be hotpluggable, + * should override it in their class_init() + */ + klass->hotpluggable = true; } static void device_unparent(Object *obj) diff --git a/include/hw/qdev-core.h b/include/hw/qdev-core.h index 41ec533acb..08d329da71 100644 --- a/include/hw/qdev-core.h +++ b/include/hw/qdev-core.h @@ -50,6 +50,8 @@ struct VMStateDescription; * is changed to %true. Deprecated, new types inheriting directly from * TYPE_DEVICE should use @realize instead, new leaf types should consult * their respective parent type. + * @hotpluggable: indicates if #DeviceClass is hotpluggable, available + * as readonly "hotpluggable" property of #DeviceState instance * * # Realization # * Devices are constructed in two stages, @@ -110,6 +112,7 @@ typedef struct DeviceClass { * TODO remove once we're there */ bool cannot_instantiate_with_device_add_yet; + bool hotpluggable; /* callbacks */ void (*reset)(DeviceState *dev); -- cgit v1.2.1 From 5fdae20cef2857a2c63c8d4fa7df6274d6d7c3c8 Mon Sep 17 00:00:00 2001 From: Igor Mammedov Date: Wed, 5 Feb 2014 16:36:47 +0100 Subject: hw/acpi: move typeinfo to the file end do so to avoid not necessary forward declarations and place typeinfo registration at the file end where it's usually expected. Signed-off-by: Igor Mammedov Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin --- hw/acpi/piix4.c | 92 ++++++++++++++++++++++++++++----------------------------- 1 file changed, 46 insertions(+), 46 deletions(-) diff --git a/hw/acpi/piix4.c b/hw/acpi/piix4.c index 7a0efcbe6d..0f45e11cad 100644 --- a/hw/acpi/piix4.c +++ b/hw/acpi/piix4.c @@ -466,52 +466,6 @@ i2c_bus *piix4_pm_init(PCIBus *bus, int devfn, uint32_t smb_io_base, return s->smb.smbus; } -static Property piix4_pm_properties[] = { - DEFINE_PROP_UINT32("smb_io_base", PIIX4PMState, smb_io_base, 0), - DEFINE_PROP_UINT8(ACPI_PM_PROP_S3_DISABLED, PIIX4PMState, disable_s3, 0), - DEFINE_PROP_UINT8(ACPI_PM_PROP_S4_DISABLED, PIIX4PMState, disable_s4, 0), - DEFINE_PROP_UINT8(ACPI_PM_PROP_S4_VAL, PIIX4PMState, s4_val, 2), - DEFINE_PROP_BOOL("acpi-pci-hotplug-with-bridge-support", PIIX4PMState, - use_acpi_pci_hotplug, true), - DEFINE_PROP_END_OF_LIST(), -}; - -static void piix4_pm_class_init(ObjectClass *klass, void *data) -{ - DeviceClass *dc = DEVICE_CLASS(klass); - PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); - - k->no_hotplug = 1; - k->init = piix4_pm_initfn; - k->config_write = pm_write_config; - k->vendor_id = PCI_VENDOR_ID_INTEL; - k->device_id = PCI_DEVICE_ID_INTEL_82371AB_3; - k->revision = 0x03; - k->class_id = PCI_CLASS_BRIDGE_OTHER; - dc->desc = "PM"; - dc->vmsd = &vmstate_acpi; - dc->props = piix4_pm_properties; - /* - * Reason: part of PIIX4 southbridge, needs to be wired up, - * e.g. by mips_malta_init() - */ - dc->cannot_instantiate_with_device_add_yet = true; -} - -static const TypeInfo piix4_pm_info = { - .name = TYPE_PIIX4_PM, - .parent = TYPE_PCI_DEVICE, - .instance_size = sizeof(PIIX4PMState), - .class_init = piix4_pm_class_init, -}; - -static void piix4_pm_register_types(void) -{ - type_register_static(&piix4_pm_info); -} - -type_init(piix4_pm_register_types) - static uint64_t gpe_readb(void *opaque, hwaddr addr, unsigned width) { PIIX4PMState *s = opaque; @@ -566,3 +520,49 @@ static void piix4_acpi_system_hot_add_init(MemoryRegion *parent, s->cpu_added_notifier.notify = piix4_cpu_added_req; qemu_register_cpu_added_notifier(&s->cpu_added_notifier); } + +static Property piix4_pm_properties[] = { + DEFINE_PROP_UINT32("smb_io_base", PIIX4PMState, smb_io_base, 0), + DEFINE_PROP_UINT8(ACPI_PM_PROP_S3_DISABLED, PIIX4PMState, disable_s3, 0), + DEFINE_PROP_UINT8(ACPI_PM_PROP_S4_DISABLED, PIIX4PMState, disable_s4, 0), + DEFINE_PROP_UINT8(ACPI_PM_PROP_S4_VAL, PIIX4PMState, s4_val, 2), + DEFINE_PROP_BOOL("acpi-pci-hotplug-with-bridge-support", PIIX4PMState, + use_acpi_pci_hotplug, true), + DEFINE_PROP_END_OF_LIST(), +}; + +static void piix4_pm_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(klass); + PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); + + k->no_hotplug = 1; + k->init = piix4_pm_initfn; + k->config_write = pm_write_config; + k->vendor_id = PCI_VENDOR_ID_INTEL; + k->device_id = PCI_DEVICE_ID_INTEL_82371AB_3; + k->revision = 0x03; + k->class_id = PCI_CLASS_BRIDGE_OTHER; + dc->desc = "PM"; + dc->vmsd = &vmstate_acpi; + dc->props = piix4_pm_properties; + /* + * Reason: part of PIIX4 southbridge, needs to be wired up, + * e.g. by mips_malta_init() + */ + dc->cannot_instantiate_with_device_add_yet = true; +} + +static const TypeInfo piix4_pm_info = { + .name = TYPE_PIIX4_PM, + .parent = TYPE_PCI_DEVICE, + .instance_size = sizeof(PIIX4PMState), + .class_init = piix4_pm_class_init, +}; + +static void piix4_pm_register_types(void) +{ + type_register_static(&piix4_pm_info); +} + +type_init(piix4_pm_register_types) -- cgit v1.2.1 From 2897ae026758eac78284ba6c3bd7732f3a1d9987 Mon Sep 17 00:00:00 2001 From: Igor Mammedov Date: Wed, 5 Feb 2014 16:36:48 +0100 Subject: qdev:pci: refactor PCIDevice to use generic "hotpluggable" property Get rid of PCIDevice specific PCIDeviceClass.no_hotplug and use generic DeviceClass.hotpluggable field instead. Signed-off-by: Igor Mammedov Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin --- hw/acpi/pcihp.c | 3 ++- hw/acpi/piix4.c | 2 +- hw/display/cirrus_vga.c | 2 +- hw/display/qxl.c | 2 +- hw/display/vga-pci.c | 2 +- hw/display/vmware_vga.c | 2 +- hw/i386/acpi-build.c | 4 +++- hw/ide/piix.c | 4 ++-- hw/isa/piix4.c | 2 +- hw/pci-host/piix.c | 6 +++--- hw/pci/pci.c | 11 +---------- hw/usb/hcd-ehci-pci.c | 2 +- hw/usb/hcd-ohci.c | 2 +- hw/usb/hcd-uhci.c | 2 +- hw/usb/hcd-xhci.c | 2 +- include/hw/pci/pci.h | 3 --- 16 files changed, 21 insertions(+), 30 deletions(-) diff --git a/hw/acpi/pcihp.c b/hw/acpi/pcihp.c index 1ce6fc2768..3bd5a06a98 100644 --- a/hw/acpi/pcihp.c +++ b/hw/acpi/pcihp.c @@ -105,12 +105,13 @@ static PCIBus *acpi_pcihp_find_hotplug_bus(AcpiPciHpState *s, int bsel) static bool acpi_pcihp_pc_no_hotplug(AcpiPciHpState *s, PCIDevice *dev) { PCIDeviceClass *pc = PCI_DEVICE_GET_CLASS(dev); + DeviceClass *dc = DEVICE_GET_CLASS(dev); /* * ACPI doesn't allow hotplug of bridge devices. Don't allow * hot-unplug of bridge devices unless they were added by hotplug * (and so, not described by acpi). */ - return (pc->is_bridge && !dev->qdev.hotplugged) || pc->no_hotplug; + return (pc->is_bridge && !dev->qdev.hotplugged) || !dc->hotpluggable; } static void acpi_pcihp_eject_slot(AcpiPciHpState *s, unsigned bsel, unsigned slots) diff --git a/hw/acpi/piix4.c b/hw/acpi/piix4.c index 0f45e11cad..077776a6c9 100644 --- a/hw/acpi/piix4.c +++ b/hw/acpi/piix4.c @@ -536,7 +536,6 @@ static void piix4_pm_class_init(ObjectClass *klass, void *data) DeviceClass *dc = DEVICE_CLASS(klass); PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); - k->no_hotplug = 1; k->init = piix4_pm_initfn; k->config_write = pm_write_config; k->vendor_id = PCI_VENDOR_ID_INTEL; @@ -551,6 +550,7 @@ static void piix4_pm_class_init(ObjectClass *klass, void *data) * e.g. by mips_malta_init() */ dc->cannot_instantiate_with_device_add_yet = true; + dc->hotpluggable = false; } static const TypeInfo piix4_pm_info = { diff --git a/hw/display/cirrus_vga.c b/hw/display/cirrus_vga.c index e4c345fa82..3a8fc0bf8e 100644 --- a/hw/display/cirrus_vga.c +++ b/hw/display/cirrus_vga.c @@ -2996,7 +2996,6 @@ static void cirrus_vga_class_init(ObjectClass *klass, void *data) DeviceClass *dc = DEVICE_CLASS(klass); PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); - k->no_hotplug = 1; k->init = pci_cirrus_vga_initfn; k->romfile = VGABIOS_CIRRUS_FILENAME; k->vendor_id = PCI_VENDOR_ID_CIRRUS; @@ -3006,6 +3005,7 @@ static void cirrus_vga_class_init(ObjectClass *klass, void *data) dc->desc = "Cirrus CLGD 54xx VGA"; dc->vmsd = &vmstate_pci_cirrus_vga; dc->props = pci_vga_cirrus_properties; + dc->hotpluggable = false; } static const TypeInfo cirrus_vga_info = { diff --git a/hw/display/qxl.c b/hw/display/qxl.c index e4f172e3fb..ec82e0020d 100644 --- a/hw/display/qxl.c +++ b/hw/display/qxl.c @@ -2299,7 +2299,6 @@ static void qxl_primary_class_init(ObjectClass *klass, void *data) DeviceClass *dc = DEVICE_CLASS(klass); PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); - k->no_hotplug = 1; k->init = qxl_init_primary; k->romfile = "vgabios-qxl.bin"; k->vendor_id = REDHAT_PCI_VENDOR_ID; @@ -2310,6 +2309,7 @@ static void qxl_primary_class_init(ObjectClass *klass, void *data) dc->reset = qxl_reset_handler; dc->vmsd = &qxl_vmstate; dc->props = qxl_properties; + dc->hotpluggable = false; } static const TypeInfo qxl_primary_info = { diff --git a/hw/display/vga-pci.c b/hw/display/vga-pci.c index b3a45c81da..f74fc43aa6 100644 --- a/hw/display/vga-pci.c +++ b/hw/display/vga-pci.c @@ -190,7 +190,6 @@ static void vga_class_init(ObjectClass *klass, void *data) DeviceClass *dc = DEVICE_CLASS(klass); PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); - k->no_hotplug = 1; k->init = pci_std_vga_initfn; k->romfile = "vgabios-stdvga.bin"; k->vendor_id = PCI_VENDOR_ID_QEMU; @@ -198,6 +197,7 @@ static void vga_class_init(ObjectClass *klass, void *data) k->class_id = PCI_CLASS_DISPLAY_VGA; dc->vmsd = &vmstate_vga_pci; dc->props = vga_pci_properties; + dc->hotpluggable = false; set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories); } diff --git a/hw/display/vmware_vga.c b/hw/display/vmware_vga.c index aba292ccde..334e71856e 100644 --- a/hw/display/vmware_vga.c +++ b/hw/display/vmware_vga.c @@ -1296,7 +1296,6 @@ static void vmsvga_class_init(ObjectClass *klass, void *data) DeviceClass *dc = DEVICE_CLASS(klass); PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); - k->no_hotplug = 1; k->init = pci_vmsvga_initfn; k->romfile = "vgabios-vmware.bin"; k->vendor_id = PCI_VENDOR_ID_VMWARE; @@ -1307,6 +1306,7 @@ static void vmsvga_class_init(ObjectClass *klass, void *data) dc->reset = vmsvga_reset; dc->vmsd = &vmstate_vmware_vga; dc->props = vga_vmware_properties; + dc->hotpluggable = false; set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories); } diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c index 50e83f3b46..b1a7ebb8e3 100644 --- a/hw/i386/acpi-build.c +++ b/hw/i386/acpi-build.c @@ -768,6 +768,7 @@ static void build_pci_bus_end(PCIBus *bus, void *bus_state) memset(slot_hotplug_enable, 0xff, sizeof slot_hotplug_enable); for (i = 0; i < ARRAY_SIZE(bus->devices); ++i) { + DeviceClass *dc; PCIDeviceClass *pc; PCIDevice *pdev = bus->devices[i]; @@ -776,8 +777,9 @@ static void build_pci_bus_end(PCIBus *bus, void *bus_state) } pc = PCI_DEVICE_GET_CLASS(pdev); + dc = DEVICE_GET_CLASS(pdev); - if (pc->no_hotplug || pc->is_bridge) { + if (!dc->hotpluggable || pc->is_bridge) { int slot = PCI_SLOT(i); clear_bit(slot, slot_hotplug_enable); diff --git a/hw/ide/piix.c b/hw/ide/piix.c index 9b5960b44e..0eda301ba9 100644 --- a/hw/ide/piix.c +++ b/hw/ide/piix.c @@ -241,13 +241,13 @@ static void piix3_ide_class_init(ObjectClass *klass, void *data) DeviceClass *dc = DEVICE_CLASS(klass); PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); - k->no_hotplug = 1; k->init = pci_piix_ide_initfn; k->exit = pci_piix_ide_exitfn; k->vendor_id = PCI_VENDOR_ID_INTEL; k->device_id = PCI_DEVICE_ID_INTEL_82371SB_1; k->class_id = PCI_CLASS_STORAGE_IDE; set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); + dc->hotpluggable = false; } static const TypeInfo piix3_ide_info = { @@ -280,13 +280,13 @@ static void piix4_ide_class_init(ObjectClass *klass, void *data) DeviceClass *dc = DEVICE_CLASS(klass); PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); - k->no_hotplug = 1; k->init = pci_piix_ide_initfn; k->exit = pci_piix_ide_exitfn; k->vendor_id = PCI_VENDOR_ID_INTEL; k->device_id = PCI_DEVICE_ID_INTEL_82371AB; k->class_id = PCI_CLASS_STORAGE_IDE; set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); + dc->hotpluggable = false; } static const TypeInfo piix4_ide_info = { diff --git a/hw/isa/piix4.c b/hw/isa/piix4.c index def6fe3a0f..492cd22fcf 100644 --- a/hw/isa/piix4.c +++ b/hw/isa/piix4.c @@ -107,7 +107,6 @@ static void piix4_class_init(ObjectClass *klass, void *data) DeviceClass *dc = DEVICE_CLASS(klass); PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); - k->no_hotplug = 1; k->init = piix4_initfn; k->vendor_id = PCI_VENDOR_ID_INTEL; k->device_id = PCI_DEVICE_ID_INTEL_82371AB_0; @@ -119,6 +118,7 @@ static void piix4_class_init(ObjectClass *klass, void *data) * e.g. by mips_malta_init() */ dc->cannot_instantiate_with_device_add_yet = true; + dc->hotpluggable = false; } static const TypeInfo piix4_info = { diff --git a/hw/pci-host/piix.c b/hw/pci-host/piix.c index e89d5c1dfa..ffdc853a62 100644 --- a/hw/pci-host/piix.c +++ b/hw/pci-host/piix.c @@ -628,7 +628,7 @@ static void piix3_class_init(ObjectClass *klass, void *data) dc->desc = "ISA bridge"; dc->vmsd = &vmstate_piix3; - k->no_hotplug = 1; + dc->hotpluggable = false; k->init = piix3_initfn; k->config_write = piix3_write_config; k->vendor_id = PCI_VENDOR_ID_INTEL; @@ -656,7 +656,7 @@ static void piix3_xen_class_init(ObjectClass *klass, void *data) dc->desc = "ISA bridge"; dc->vmsd = &vmstate_piix3; - k->no_hotplug = 1; + dc->hotpluggable = false; k->init = piix3_initfn; k->config_write = piix3_write_config_xen; k->vendor_id = PCI_VENDOR_ID_INTEL; @@ -682,7 +682,6 @@ static void i440fx_class_init(ObjectClass *klass, void *data) DeviceClass *dc = DEVICE_CLASS(klass); PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); - k->no_hotplug = 1; k->init = i440fx_initfn; k->config_write = i440fx_write_config; k->vendor_id = PCI_VENDOR_ID_INTEL; @@ -696,6 +695,7 @@ static void i440fx_class_init(ObjectClass *klass, void *data) * host-facing part, which can't be device_add'ed, yet. */ dc->cannot_instantiate_with_device_add_yet = true; + dc->hotpluggable = false; } static const TypeInfo i440fx_info = { diff --git a/hw/pci/pci.c b/hw/pci/pci.c index 1221f32847..d69961f410 100644 --- a/hw/pci/pci.c +++ b/hw/pci/pci.c @@ -1761,11 +1761,7 @@ static int pci_qdev_init(DeviceState *qdev) pci_dev->devfn); if (pci_dev == NULL) return -1; - if (qdev->hotplugged && pc->no_hotplug) { - qerror_report(QERR_DEVICE_NO_HOTPLUG, object_get_typename(OBJECT(pci_dev))); - do_pci_unregister_device(pci_dev); - return -1; - } + if (pc->init) { rc = pc->init(pci_dev); if (rc != 0) { @@ -1800,12 +1796,7 @@ static int pci_qdev_init(DeviceState *qdev) static int pci_unplug_device(DeviceState *qdev) { PCIDevice *dev = PCI_DEVICE(qdev); - PCIDeviceClass *pc = PCI_DEVICE_GET_CLASS(dev); - if (pc->no_hotplug) { - qerror_report(QERR_DEVICE_NO_HOTPLUG, object_get_typename(OBJECT(dev))); - return -1; - } return dev->bus->hotplug(dev->bus->hotplug_qdev, dev, PCI_HOTPLUG_DISABLED); } diff --git a/hw/usb/hcd-ehci-pci.c b/hw/usb/hcd-ehci-pci.c index 0c985942f9..484a9bd059 100644 --- a/hw/usb/hcd-ehci-pci.c +++ b/hw/usb/hcd-ehci-pci.c @@ -123,7 +123,7 @@ static void ehci_class_init(ObjectClass *klass, void *data) k->init = usb_ehci_pci_initfn; k->class_id = PCI_CLASS_SERIAL_USB; k->config_write = usb_ehci_pci_write_config; - k->no_hotplug = 1; + dc->hotpluggable = false; dc->vmsd = &vmstate_ehci_pci; dc->props = ehci_pci_properties; } diff --git a/hw/usb/hcd-ohci.c b/hw/usb/hcd-ohci.c index e38cdebfec..3d35058b14 100644 --- a/hw/usb/hcd-ohci.c +++ b/hw/usb/hcd-ohci.c @@ -1993,10 +1993,10 @@ static void ohci_pci_class_init(ObjectClass *klass, void *data) k->vendor_id = PCI_VENDOR_ID_APPLE; k->device_id = PCI_DEVICE_ID_APPLE_IPID_USB; k->class_id = PCI_CLASS_SERIAL_USB; - k->no_hotplug = 1; set_bit(DEVICE_CATEGORY_USB, dc->categories); dc->desc = "Apple USB Controller"; dc->props = ohci_pci_properties; + dc->hotpluggable = false; } static const TypeInfo ohci_pci_info = { diff --git a/hw/usb/hcd-uhci.c b/hw/usb/hcd-uhci.c index 238d1d2b5f..ad814b58d4 100644 --- a/hw/usb/hcd-uhci.c +++ b/hw/usb/hcd-uhci.c @@ -1318,7 +1318,7 @@ static void uhci_class_init(ObjectClass *klass, void *data) k->device_id = info->device_id; k->revision = info->revision; k->class_id = PCI_CLASS_SERIAL_USB; - k->no_hotplug = 1; + dc->hotpluggable = false; dc->vmsd = &vmstate_uhci; dc->props = uhci_properties; set_bit(DEVICE_CATEGORY_USB, dc->categories); diff --git a/hw/usb/hcd-xhci.c b/hw/usb/hcd-xhci.c index bafe08590b..0fa814ee09 100644 --- a/hw/usb/hcd-xhci.c +++ b/hw/usb/hcd-xhci.c @@ -3798,6 +3798,7 @@ static void xhci_class_init(ObjectClass *klass, void *data) dc->vmsd = &vmstate_xhci; dc->props = xhci_properties; dc->reset = xhci_reset; + dc->hotpluggable = false; set_bit(DEVICE_CATEGORY_USB, dc->categories); k->init = usb_xhci_initfn; k->vendor_id = PCI_VENDOR_ID_NEC; @@ -3805,7 +3806,6 @@ static void xhci_class_init(ObjectClass *klass, void *data) k->class_id = PCI_CLASS_SERIAL_USB; k->revision = 0x03; k->is_express = 1; - k->no_hotplug = 1; } static const TypeInfo xhci_info = { diff --git a/include/hw/pci/pci.h b/include/hw/pci/pci.h index 52523467b6..c173b6a85e 100644 --- a/include/hw/pci/pci.h +++ b/include/hw/pci/pci.h @@ -201,9 +201,6 @@ typedef struct PCIDeviceClass { /* pcie stuff */ int is_express; /* is this device pci express? */ - /* device isn't hot-pluggable */ - int no_hotplug; - /* rom bar */ const char *romfile; } PCIDeviceClass; -- cgit v1.2.1 From c24d5e0b91d138f8cc95f5694d4964de36a739d3 Mon Sep 17 00:00:00 2001 From: Igor Mammedov Date: Wed, 5 Feb 2014 16:36:49 +0100 Subject: acpi/piix4pm: convert ACPI PCI hotplug to use hotplug-handler API Split piix4_device_hotplug() into hotplug/unplug callbacks and register them as "hotplug-handler" interface implementation of PIIX4_PM device. Replace pci_bus_hotplug() wiring with setting link on PCI BUS "hotplug-handler" property to PIIX4_PM device. Signed-off-by: Igor Mammedov Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin --- hw/acpi/pcihp.c | 43 +++++++++++++++++++++++++++++++------------ hw/acpi/piix4.c | 36 ++++++++++++++++++++++-------------- include/hw/acpi/acpi.h | 1 + include/hw/acpi/pcihp.h | 10 ++++++---- 4 files changed, 60 insertions(+), 30 deletions(-) diff --git a/hw/acpi/pcihp.c b/hw/acpi/pcihp.c index 3bd5a06a98..f80c48008c 100644 --- a/hw/acpi/pcihp.c +++ b/hw/acpi/pcihp.c @@ -46,6 +46,7 @@ # define ACPI_PCIHP_DPRINTF(format, ...) do { } while (0) #endif +#define ACPI_PCI_HOTPLUG_STATUS 2 #define ACPI_PCIHP_ADDR 0xae00 #define ACPI_PCIHP_SIZE 0x0014 #define ACPI_PCIHP_LEGACY_SIZE 0x000f @@ -179,29 +180,47 @@ void acpi_pcihp_reset(AcpiPciHpState *s) acpi_pcihp_update(s); } -int acpi_pcihp_device_hotplug(AcpiPciHpState *s, PCIDevice *dev, - PCIHotplugState state) +void acpi_pcihp_device_plug_cb(ACPIREGS *ar, qemu_irq irq, AcpiPciHpState *s, + DeviceState *dev, Error **errp) { - int slot = PCI_SLOT(dev->devfn); - int bsel = acpi_pcihp_get_bsel(dev->bus); + PCIDevice *pdev = PCI_DEVICE(dev); + int slot = PCI_SLOT(pdev->devfn); + int bsel = acpi_pcihp_get_bsel(pdev->bus); if (bsel < 0) { - return -1; + error_setg(errp, "Unsupported bus. Bus doesn't have property '" + ACPI_PCIHP_PROP_BSEL "' set"); + return; } /* Don't send event when device is enabled during qemu machine creation: * it is present on boot, no hotplug event is necessary. We do send an * event when the device is disabled later. */ - if (state == PCI_COLDPLUG_ENABLED) { - return 0; + if (!dev->hotplugged) { + return; } - if (state == PCI_HOTPLUG_ENABLED) { - s->acpi_pcihp_pci_status[bsel].up |= (1U << slot); - } else { - s->acpi_pcihp_pci_status[bsel].down |= (1U << slot); + s->acpi_pcihp_pci_status[bsel].up |= (1U << slot); + + ar->gpe.sts[0] |= ACPI_PCI_HOTPLUG_STATUS; + acpi_update_sci(ar, irq); +} + +void acpi_pcihp_device_unplug_cb(ACPIREGS *ar, qemu_irq irq, AcpiPciHpState *s, + DeviceState *dev, Error **errp) +{ + PCIDevice *pdev = PCI_DEVICE(dev); + int slot = PCI_SLOT(pdev->devfn); + int bsel = acpi_pcihp_get_bsel(pdev->bus); + if (bsel < 0) { + error_setg(errp, "Unsupported bus. Bus doesn't have property '" + ACPI_PCIHP_PROP_BSEL "' set"); + return; } - return 0; + s->acpi_pcihp_pci_status[bsel].down |= (1U << slot); + + ar->gpe.sts[0] |= ACPI_PCI_HOTPLUG_STATUS; + acpi_update_sci(ar, irq); } static uint64_t pci_read(void *opaque, hwaddr addr, unsigned int size) diff --git a/hw/acpi/piix4.c b/hw/acpi/piix4.c index 077776a6c9..9f21653e94 100644 --- a/hw/acpi/piix4.c +++ b/hw/acpi/piix4.c @@ -32,6 +32,7 @@ #include "hw/acpi/piix4.h" #include "hw/acpi/pcihp.h" #include "hw/acpi/cpu_hotplug.h" +#include "hw/hotplug.h" //#define DEBUG @@ -44,8 +45,6 @@ #define GPE_BASE 0xafe0 #define GPE_LEN 4 -#define PIIX4_PCI_HOTPLUG_STATUS 2 - struct pci_status { uint32_t up; /* deprecated, maintained for migration compatibility */ uint32_t down; @@ -311,24 +310,26 @@ static void piix4_pm_powerdown_req(Notifier *n, void *opaque) acpi_pm1_evt_power_down(&s->ar); } -static int piix4_acpi_pci_hotplug(DeviceState *qdev, PCIDevice *dev, - PCIHotplugState state) +static void piix4_pci_device_plug_cb(HotplugHandler *hotplug_dev, + DeviceState *dev, Error **errp) { - PIIX4PMState *s = PIIX4_PM(qdev); - int ret = acpi_pcihp_device_hotplug(&s->acpi_pci_hotplug, dev, state); - if (ret < 0) { - return ret; - } - s->ar.gpe.sts[0] |= PIIX4_PCI_HOTPLUG_STATUS; + PIIX4PMState *s = PIIX4_PM(hotplug_dev); + acpi_pcihp_device_plug_cb(&s->ar, s->irq, &s->acpi_pci_hotplug, dev, errp); +} - acpi_update_sci(&s->ar, s->irq); - return 0; +static void piix4_pci_device_unplug_cb(HotplugHandler *hotplug_dev, + DeviceState *dev, Error **errp) +{ + PIIX4PMState *s = PIIX4_PM(hotplug_dev); + acpi_pcihp_device_unplug_cb(&s->ar, s->irq, &s->acpi_pci_hotplug, dev, + errp); } -static void piix4_update_bus_hotplug(PCIBus *bus, void *opaque) +static void piix4_update_bus_hotplug(PCIBus *pci_bus, void *opaque) { PIIX4PMState *s = opaque; - pci_bus_hotplug(bus, piix4_acpi_pci_hotplug, DEVICE(s)); + + qbus_set_hotplug_handler(BUS(pci_bus), DEVICE(s), &error_abort); } static void piix4_pm_machine_ready(Notifier *n, void *opaque) @@ -535,6 +536,7 @@ static void piix4_pm_class_init(ObjectClass *klass, void *data) { DeviceClass *dc = DEVICE_CLASS(klass); PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); + HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(klass); k->init = piix4_pm_initfn; k->config_write = pm_write_config; @@ -551,6 +553,8 @@ static void piix4_pm_class_init(ObjectClass *klass, void *data) */ dc->cannot_instantiate_with_device_add_yet = true; dc->hotpluggable = false; + hc->plug = piix4_pci_device_plug_cb; + hc->unplug = piix4_pci_device_unplug_cb; } static const TypeInfo piix4_pm_info = { @@ -558,6 +562,10 @@ static const TypeInfo piix4_pm_info = { .parent = TYPE_PCI_DEVICE, .instance_size = sizeof(PIIX4PMState), .class_init = piix4_pm_class_init, + .interfaces = (InterfaceInfo[]) { + { TYPE_HOTPLUG_HANDLER }, + { } + } }; static void piix4_pm_register_types(void) diff --git a/include/hw/acpi/acpi.h b/include/hw/acpi/acpi.h index 3e53297a99..a9fae9d5c5 100644 --- a/include/hw/acpi/acpi.h +++ b/include/hw/acpi/acpi.h @@ -24,6 +24,7 @@ #include "qemu/notify.h" #include "qemu/option.h" #include "exec/memory.h" +#include "hw/irq.h" /* from linux include/acpi/actype.h */ /* Default ACPI register widths */ diff --git a/include/hw/acpi/pcihp.h b/include/hw/acpi/pcihp.h index 0a90e4a968..9323838319 100644 --- a/include/hw/acpi/pcihp.h +++ b/include/hw/acpi/pcihp.h @@ -29,7 +29,8 @@ #include #include -#include "hw/pci/pci.h" /* for PCIHotplugState */ +#include "hw/acpi/acpi.h" +#include "migration/vmstate.h" typedef struct AcpiPciHpPciStatus { uint32_t up; @@ -52,9 +53,10 @@ typedef struct AcpiPciHpState { void acpi_pcihp_init(AcpiPciHpState *, PCIBus *root, MemoryRegion *address_space_io, bool bridges_enabled); -/* Invoke on device hotplug */ -int acpi_pcihp_device_hotplug(AcpiPciHpState *, PCIDevice *, - PCIHotplugState state); +void acpi_pcihp_device_plug_cb(ACPIREGS *ar, qemu_irq irq, AcpiPciHpState *s, + DeviceState *dev, Error **errp); +void acpi_pcihp_device_unplug_cb(ACPIREGS *ar, qemu_irq irq, AcpiPciHpState *s, + DeviceState *dev, Error **errp); /* Called on reset */ void acpi_pcihp_reset(AcpiPciHpState *s); -- cgit v1.2.1 From 5d268704d7c2bc58c38b87d7d94804639ef100ec Mon Sep 17 00:00:00 2001 From: Igor Mammedov Date: Wed, 5 Feb 2014 16:36:50 +0100 Subject: pci/shpc: convert SHPC hotplug to use hotplug-handler API Split shpc_device_hotplug() into hotplug/unplug callbacks and register them as "hotplug-handler" interface implementation of PCI_BRIDGE_DEV device. Replace pci_bus_hotplug() wiring with setting link on PCI BUS "hotplug-handler" property to PCI_BRIDGE_DEV device. Signed-off-by: Igor Mammedov Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin --- hw/pci-bridge/pci_bridge_dev.c | 9 +++ hw/pci/shpc.c | 124 +++++++++++++++++++++++++---------------- include/hw/pci/shpc.h | 8 +++ 3 files changed, 94 insertions(+), 47 deletions(-) diff --git a/hw/pci-bridge/pci_bridge_dev.c b/hw/pci-bridge/pci_bridge_dev.c index 440e187c46..e68145c52f 100644 --- a/hw/pci-bridge/pci_bridge_dev.c +++ b/hw/pci-bridge/pci_bridge_dev.c @@ -26,6 +26,7 @@ #include "hw/pci/slotid_cap.h" #include "exec/memory.h" #include "hw/pci/pci_bus.h" +#include "hw/hotplug.h" #define TYPE_PCI_BRIDGE_DEV "pci-bridge" #define PCI_BRIDGE_DEV(obj) \ @@ -136,6 +137,8 @@ static void pci_bridge_dev_class_init(ObjectClass *klass, void *data) { DeviceClass *dc = DEVICE_CLASS(klass); PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); + HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(klass); + k->init = pci_bridge_dev_initfn; k->exit = pci_bridge_dev_exitfn; k->config_write = pci_bridge_dev_write_config; @@ -148,6 +151,8 @@ static void pci_bridge_dev_class_init(ObjectClass *klass, void *data) dc->props = pci_bridge_dev_properties; dc->vmsd = &pci_bridge_dev_vmstate; set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories); + hc->plug = shpc_device_hotplug_cb; + hc->unplug = shpc_device_hot_unplug_cb; } static const TypeInfo pci_bridge_dev_info = { @@ -155,6 +160,10 @@ static const TypeInfo pci_bridge_dev_info = { .parent = TYPE_PCI_BRIDGE, .instance_size = sizeof(PCIBridgeDev), .class_init = pci_bridge_dev_class_init, + .interfaces = (InterfaceInfo[]) { + { TYPE_HOTPLUG_HANDLER }, + { } + } }; static void pci_bridge_dev_register(void) diff --git a/hw/pci/shpc.c b/hw/pci/shpc.c index 576244b9f6..180faa7adb 100644 --- a/hw/pci/shpc.c +++ b/hw/pci/shpc.c @@ -7,6 +7,7 @@ #include "hw/pci/pci.h" #include "hw/pci/pci_bus.h" #include "hw/pci/msi.h" +#include "qapi/qmp/qerror.h" /* TODO: model power only and disabled slot states. */ /* TODO: handle SERR and wakeups */ @@ -490,65 +491,93 @@ static const MemoryRegionOps shpc_mmio_ops = { .max_access_size = 4, }, }; - -static int shpc_device_hotplug(DeviceState *qdev, PCIDevice *affected_dev, - PCIHotplugState hotplug_state) +static void shpc_device_hotplug_common(PCIDevice *affected_dev, int *slot, + SHPCDevice *shpc, Error **errp) { int pci_slot = PCI_SLOT(affected_dev->devfn); - uint8_t state; - uint8_t led; - PCIDevice *d = DO_UPCAST(PCIDevice, qdev, qdev); - SHPCDevice *shpc = d->shpc; - int slot = SHPC_PCI_TO_IDX(pci_slot); - if (pci_slot < SHPC_IDX_TO_PCI(0) || slot >= shpc->nslots) { - error_report("Unsupported PCI slot %d for standard hotplug " - "controller. Valid slots are between %d and %d.", - pci_slot, SHPC_IDX_TO_PCI(0), - SHPC_IDX_TO_PCI(shpc->nslots) - 1); - return -1; + *slot = SHPC_PCI_TO_IDX(pci_slot); + + if (pci_slot < SHPC_IDX_TO_PCI(0) || *slot >= shpc->nslots) { + error_setg(errp, "Unsupported PCI slot %d for standard hotplug " + "controller. Valid slots are between %d and %d.", + pci_slot, SHPC_IDX_TO_PCI(0), + SHPC_IDX_TO_PCI(shpc->nslots) - 1); + return; + } +} + +void shpc_device_hotplug_cb(HotplugHandler *hotplug_dev, DeviceState *dev, + Error **errp) +{ + Error *local_err = NULL; + PCIDevice *pci_hotplug_dev = PCI_DEVICE(hotplug_dev); + SHPCDevice *shpc = pci_hotplug_dev->shpc; + int slot; + + shpc_device_hotplug_common(PCI_DEVICE(dev), &slot, shpc, &local_err); + if (local_err) { + error_propagate(errp, local_err); + return; } + /* Don't send event when device is enabled during qemu machine creation: * it is present on boot, no hotplug event is necessary. We do send an * event when the device is disabled later. */ - if (hotplug_state == PCI_COLDPLUG_ENABLED) { + if (!dev->hotplugged) { shpc_set_status(shpc, slot, 0, SHPC_SLOT_STATUS_MRL_OPEN); shpc_set_status(shpc, slot, SHPC_SLOT_STATUS_PRSNT_7_5W, SHPC_SLOT_STATUS_PRSNT_MASK); - return 0; + return; } - if (hotplug_state == PCI_HOTPLUG_DISABLED) { - shpc->config[SHPC_SLOT_EVENT_LATCH(slot)] |= SHPC_SLOT_EVENT_BUTTON; - state = shpc_get_status(shpc, slot, SHPC_SLOT_STATE_MASK); - led = shpc_get_status(shpc, slot, SHPC_SLOT_PWR_LED_MASK); - if (state == SHPC_STATE_DISABLED && led == SHPC_LED_OFF) { - shpc_free_devices_in_slot(shpc, slot); - shpc_set_status(shpc, slot, 1, SHPC_SLOT_STATUS_MRL_OPEN); - shpc_set_status(shpc, slot, SHPC_SLOT_STATUS_PRSNT_EMPTY, - SHPC_SLOT_STATUS_PRSNT_MASK); - shpc->config[SHPC_SLOT_EVENT_LATCH(slot)] |= - SHPC_SLOT_EVENT_MRL | - SHPC_SLOT_EVENT_PRESENCE; - } + + /* This could be a cancellation of the previous removal. + * We check MRL state to figure out. */ + if (shpc_get_status(shpc, slot, SHPC_SLOT_STATUS_MRL_OPEN)) { + shpc_set_status(shpc, slot, 0, SHPC_SLOT_STATUS_MRL_OPEN); + shpc_set_status(shpc, slot, SHPC_SLOT_STATUS_PRSNT_7_5W, + SHPC_SLOT_STATUS_PRSNT_MASK); + shpc->config[SHPC_SLOT_EVENT_LATCH(slot)] |= + SHPC_SLOT_EVENT_BUTTON | + SHPC_SLOT_EVENT_MRL | + SHPC_SLOT_EVENT_PRESENCE; } else { - /* This could be a cancellation of the previous removal. - * We check MRL state to figure out. */ - if (shpc_get_status(shpc, slot, SHPC_SLOT_STATUS_MRL_OPEN)) { - shpc_set_status(shpc, slot, 0, SHPC_SLOT_STATUS_MRL_OPEN); - shpc_set_status(shpc, slot, SHPC_SLOT_STATUS_PRSNT_7_5W, - SHPC_SLOT_STATUS_PRSNT_MASK); - shpc->config[SHPC_SLOT_EVENT_LATCH(slot)] |= - SHPC_SLOT_EVENT_BUTTON | - SHPC_SLOT_EVENT_MRL | - SHPC_SLOT_EVENT_PRESENCE; - } else { - /* Press attention button to cancel removal */ - shpc->config[SHPC_SLOT_EVENT_LATCH(slot)] |= - SHPC_SLOT_EVENT_BUTTON; - } + /* Press attention button to cancel removal */ + shpc->config[SHPC_SLOT_EVENT_LATCH(slot)] |= + SHPC_SLOT_EVENT_BUTTON; } shpc_set_status(shpc, slot, 0, SHPC_SLOT_STATUS_66); - shpc_interrupt_update(d); - return 0; + shpc_interrupt_update(pci_hotplug_dev); +} + +void shpc_device_hot_unplug_cb(HotplugHandler *hotplug_dev, DeviceState *dev, + Error **errp) +{ + Error *local_err = NULL; + PCIDevice *pci_hotplug_dev = PCI_DEVICE(hotplug_dev); + SHPCDevice *shpc = pci_hotplug_dev->shpc; + uint8_t state; + uint8_t led; + int slot; + + shpc_device_hotplug_common(PCI_DEVICE(dev), &slot, shpc, errp); + if (local_err) { + return; + } + + shpc->config[SHPC_SLOT_EVENT_LATCH(slot)] |= SHPC_SLOT_EVENT_BUTTON; + state = shpc_get_status(shpc, slot, SHPC_SLOT_STATE_MASK); + led = shpc_get_status(shpc, slot, SHPC_SLOT_PWR_LED_MASK); + if (state == SHPC_STATE_DISABLED && led == SHPC_LED_OFF) { + shpc_free_devices_in_slot(shpc, slot); + shpc_set_status(shpc, slot, 1, SHPC_SLOT_STATUS_MRL_OPEN); + shpc_set_status(shpc, slot, SHPC_SLOT_STATUS_PRSNT_EMPTY, + SHPC_SLOT_STATUS_PRSNT_MASK); + shpc->config[SHPC_SLOT_EVENT_LATCH(slot)] |= + SHPC_SLOT_EVENT_MRL | + SHPC_SLOT_EVENT_PRESENCE; + } + shpc_set_status(shpc, slot, 0, SHPC_SLOT_STATUS_66); + shpc_interrupt_update(pci_hotplug_dev); } /* Initialize the SHPC structure in bridge's BAR. */ @@ -616,7 +645,8 @@ int shpc_init(PCIDevice *d, PCIBus *sec_bus, MemoryRegion *bar, unsigned offset) d, "shpc-mmio", SHPC_SIZEOF(d)); shpc_cap_update_dword(d); memory_region_add_subregion(bar, offset, &shpc->mmio); - pci_bus_hotplug(sec_bus, shpc_device_hotplug, &d->qdev); + + qbus_set_hotplug_handler(BUS(sec_bus), DEVICE(d), NULL); d->cap_present |= QEMU_PCI_CAP_SHPC; return 0; diff --git a/include/hw/pci/shpc.h b/include/hw/pci/shpc.h index 467911a558..eef1a1ad6e 100644 --- a/include/hw/pci/shpc.h +++ b/include/hw/pci/shpc.h @@ -4,6 +4,8 @@ #include "qemu-common.h" #include "exec/memory.h" #include "migration/vmstate.h" +#include "qapi/error.h" +#include "hw/hotplug.h" struct SHPCDevice { /* Capability offset in device's config space */ @@ -41,6 +43,12 @@ int shpc_init(PCIDevice *dev, PCIBus *sec_bus, MemoryRegion *bar, unsigned off); void shpc_cleanup(PCIDevice *dev, MemoryRegion *bar); void shpc_cap_write_config(PCIDevice *d, uint32_t addr, uint32_t val, int len); + +void shpc_device_hotplug_cb(HotplugHandler *hotplug_dev, DeviceState *dev, + Error **errp); +void shpc_device_hot_unplug_cb(HotplugHandler *hotplug_dev, DeviceState *dev, + Error **errp); + extern VMStateInfo shpc_vmstate_info; #define SHPC_VMSTATE(_field, _type) \ VMSTATE_BUFFER_UNSAFE_INFO(_field, _type, 0, shpc_vmstate_info, 0) -- cgit v1.2.1 From a66e657e18cd9b70e9f57ae5512c07faf2bc508f Mon Sep 17 00:00:00 2001 From: Igor Mammedov Date: Wed, 5 Feb 2014 16:36:51 +0100 Subject: pci/pcie: convert PCIE hotplug to use hotplug-handler API Split pcie_cap_slot_hotplug() into hotplug/unplug callbacks and register them as "hotplug-handler" interface implementation of PCIE_SLOT device. Replace pci_bus_hotplug() wiring with setting link on PCI BUS "hotplug-handler" property to PCI_BRIDGE_DEV device. Signed-off-by: Igor Mammedov Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin --- hw/pci/pcie.c | 65 +++++++++++++++++++++++++++++++-------------------- hw/pci/pcie_port.c | 8 +++++++ include/hw/pci/pcie.h | 5 ++++ 3 files changed, 53 insertions(+), 25 deletions(-) diff --git a/hw/pci/pcie.c b/hw/pci/pcie.c index ca60cf2177..8ecd11eca2 100644 --- a/hw/pci/pcie.c +++ b/hw/pci/pcie.c @@ -26,6 +26,7 @@ #include "hw/pci/pci_bus.h" #include "hw/pci/pcie_regs.h" #include "qemu/range.h" +#include "qapi/qmp/qerror.h" //#define DEBUG_PCIE #ifdef DEBUG_PCIE @@ -216,28 +217,20 @@ static void pcie_cap_slot_event(PCIDevice *dev, PCIExpressHotPlugEvent event) hotplug_event_notify(dev); } -static int pcie_cap_slot_hotplug(DeviceState *qdev, - PCIDevice *pci_dev, PCIHotplugState state) +static void pcie_cap_slot_hotplug_common(PCIDevice *hotplug_dev, + DeviceState *dev, + uint8_t **exp_cap, Error **errp) { - PCIDevice *d = PCI_DEVICE(qdev); - uint8_t *exp_cap = d->config + d->exp.exp_cap; - uint16_t sltsta = pci_get_word(exp_cap + PCI_EXP_SLTSTA); - - /* Don't send event when device is enabled during qemu machine creation: - * it is present on boot, no hotplug event is necessary. We do send an - * event when the device is disabled later. */ - if (state == PCI_COLDPLUG_ENABLED) { - pci_word_test_and_set_mask(exp_cap + PCI_EXP_SLTSTA, - PCI_EXP_SLTSTA_PDS); - return 0; - } + PCIDevice *pci_dev = PCI_DEVICE(dev); + *exp_cap = hotplug_dev->config + hotplug_dev->exp.exp_cap; + uint16_t sltsta = pci_get_word(*exp_cap + PCI_EXP_SLTSTA); PCIE_DEV_PRINTF(pci_dev, "hotplug state: %d\n", state); if (sltsta & PCI_EXP_SLTSTA_EIS) { /* the slot is electromechanically locked. * This error is propagated up to qdev and then to HMP/QMP. */ - return -EBUSY; + error_setg_errno(errp, -EBUSY, "slot is electromechanically locked"); } /* TODO: multifunction hot-plug. @@ -245,18 +238,40 @@ static int pcie_cap_slot_hotplug(DeviceState *qdev, * hot plugged/unplugged. */ assert(PCI_FUNC(pci_dev->devfn) == 0); +} - if (state == PCI_HOTPLUG_ENABLED) { +void pcie_cap_slot_hotplug_cb(HotplugHandler *hotplug_dev, DeviceState *dev, + Error **errp) +{ + uint8_t *exp_cap; + + pcie_cap_slot_hotplug_common(PCI_DEVICE(hotplug_dev), dev, &exp_cap, errp); + + /* Don't send event when device is enabled during qemu machine creation: + * it is present on boot, no hotplug event is necessary. We do send an + * event when the device is disabled later. */ + if (!dev->hotplugged) { pci_word_test_and_set_mask(exp_cap + PCI_EXP_SLTSTA, PCI_EXP_SLTSTA_PDS); - pcie_cap_slot_event(d, PCI_EXP_HP_EV_PDC); - } else { - object_unparent(OBJECT(pci_dev)); - pci_word_test_and_clear_mask(exp_cap + PCI_EXP_SLTSTA, - PCI_EXP_SLTSTA_PDS); - pcie_cap_slot_event(d, PCI_EXP_HP_EV_PDC); + return; } - return 0; + + pci_word_test_and_set_mask(exp_cap + PCI_EXP_SLTSTA, + PCI_EXP_SLTSTA_PDS); + pcie_cap_slot_event(PCI_DEVICE(hotplug_dev), PCI_EXP_HP_EV_PDC); +} + +void pcie_cap_slot_hot_unplug_cb(HotplugHandler *hotplug_dev, DeviceState *dev, + Error **errp) +{ + uint8_t *exp_cap; + + pcie_cap_slot_hotplug_common(PCI_DEVICE(hotplug_dev), dev, &exp_cap, errp); + + object_unparent(OBJECT(dev)); + pci_word_test_and_clear_mask(exp_cap + PCI_EXP_SLTSTA, + PCI_EXP_SLTSTA_PDS); + pcie_cap_slot_event(PCI_DEVICE(hotplug_dev), PCI_EXP_HP_EV_PDC); } /* pci express slot for pci express root/downstream port @@ -305,8 +320,8 @@ void pcie_cap_slot_init(PCIDevice *dev, uint16_t slot) dev->exp.hpev_notified = false; - pci_bus_hotplug(pci_bridge_get_sec_bus(PCI_BRIDGE(dev)), - pcie_cap_slot_hotplug, &dev->qdev); + qbus_set_hotplug_handler(BUS(pci_bridge_get_sec_bus(PCI_BRIDGE(dev))), + DEVICE(dev), NULL); } void pcie_cap_slot_reset(PCIDevice *dev) diff --git a/hw/pci/pcie_port.c b/hw/pci/pcie_port.c index 2adb0300f4..fa24877955 100644 --- a/hw/pci/pcie_port.c +++ b/hw/pci/pcie_port.c @@ -19,6 +19,7 @@ */ #include "hw/pci/pcie_port.h" +#include "hw/hotplug.h" void pcie_port_init_reg(PCIDevice *d) { @@ -149,8 +150,11 @@ static Property pcie_slot_props[] = { static void pcie_slot_class_init(ObjectClass *oc, void *data) { DeviceClass *dc = DEVICE_CLASS(oc); + HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(oc); dc->props = pcie_slot_props; + hc->plug = pcie_cap_slot_hotplug_cb; + hc->unplug = pcie_cap_slot_hot_unplug_cb; } static const TypeInfo pcie_slot_type_info = { @@ -159,6 +163,10 @@ static const TypeInfo pcie_slot_type_info = { .instance_size = sizeof(PCIESlot), .abstract = true, .class_init = pcie_slot_class_init, + .interfaces = (InterfaceInfo[]) { + { TYPE_HOTPLUG_HANDLER }, + { } + } }; static void pcie_port_register_types(void) diff --git a/include/hw/pci/pcie.h b/include/hw/pci/pcie.h index 1966169553..b0bf7e3ce1 100644 --- a/include/hw/pci/pcie.h +++ b/include/hw/pci/pcie.h @@ -25,6 +25,7 @@ #include "hw/pci/pci_regs.h" #include "hw/pci/pcie_regs.h" #include "hw/pci/pcie_aer.h" +#include "hw/hotplug.h" typedef enum { /* for attention and power indicator */ @@ -122,4 +123,8 @@ extern const VMStateDescription vmstate_pcie_device; .offset = vmstate_offset_value(_state, _field, PCIDevice), \ } +void pcie_cap_slot_hotplug_cb(HotplugHandler *hotplug_dev, DeviceState *dev, + Error **errp); +void pcie_cap_slot_hot_unplug_cb(HotplugHandler *hotplug_dev, DeviceState *dev, + Error **errp); #endif /* QEMU_PCIE_H */ -- cgit v1.2.1 From 5e95494380ecf83c97d28f72134ab45e0cace8f9 Mon Sep 17 00:00:00 2001 From: Igor Mammedov Date: Wed, 5 Feb 2014 16:36:52 +0100 Subject: hw/pci: switch to a generic hotplug handling for PCIDevice make qdev_unplug()/device_set_realized() to call hotplug handler's plug/unplug methods if available and remove not needed anymore hot(un)plug handling from PCIDevice. In case if hotplug handler is not available, revert to the legacy hotplug method for compatibility with not yet converted buses. Signed-off-by: Igor Mammedov Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin --- hw/core/qdev.c | 17 +++++++++++++---- hw/pci/pci.c | 29 +---------------------------- include/hw/pci/pci.h | 10 ---------- include/hw/pci/pci_bus.h | 2 -- tests/Makefile | 2 +- 5 files changed, 15 insertions(+), 45 deletions(-) diff --git a/hw/core/qdev.c b/hw/core/qdev.c index 5c864dbfa7..64b66e07ef 100644 --- a/hw/core/qdev.c +++ b/hw/core/qdev.c @@ -213,7 +213,6 @@ void qdev_unplug(DeviceState *dev, Error **errp) error_set(errp, QERR_BUS_NO_HOTPLUG, dev->parent_bus->name); return; } - assert(dc->unplug != NULL); if (!dc->hotpluggable) { error_set(errp, QERR_DEVICE_NO_HOTPLUG, @@ -223,9 +222,13 @@ void qdev_unplug(DeviceState *dev, Error **errp) qdev_hot_removed = true; - if (dc->unplug(dev) < 0) { - error_set(errp, QERR_UNDEFINED_ERROR); - return; + if (dev->parent_bus && dev->parent_bus->hotplug_handler) { + hotplug_handler_unplug(dev->parent_bus->hotplug_handler, dev, errp); + } else { + assert(dc->unplug != NULL); + if (dc->unplug(dev) < 0) { /* legacy handler */ + error_set(errp, QERR_UNDEFINED_ERROR); + } } } @@ -720,6 +723,12 @@ static void device_set_realized(Object *obj, bool value, Error **err) dc->realize(dev, &local_err); } + if (dev->parent_bus && dev->parent_bus->hotplug_handler && + local_err == NULL) { + hotplug_handler_plug(dev->parent_bus->hotplug_handler, + dev, &local_err); + } + if (qdev_get_vmsd(dev) && local_err == NULL) { vmstate_register_with_alias_id(dev, -1, qdev_get_vmsd(dev), dev, dev->instance_id_alias, diff --git a/hw/pci/pci.c b/hw/pci/pci.c index d69961f410..4e0701df38 100644 --- a/hw/pci/pci.c +++ b/hw/pci/pci.c @@ -35,6 +35,7 @@ #include "hw/pci/msi.h" #include "hw/pci/msix.h" #include "exec/address-spaces.h" +#include "hw/hotplug.h" //#define DEBUG_PCI #ifdef DEBUG_PCI @@ -346,13 +347,6 @@ void pci_bus_irqs(PCIBus *bus, pci_set_irq_fn set_irq, pci_map_irq_fn map_irq, bus->irq_count = g_malloc0(nirq * sizeof(bus->irq_count[0])); } -void pci_bus_hotplug(PCIBus *bus, pci_hotplug_fn hotplug, DeviceState *qdev) -{ - bus->qbus.allow_hotplug = 1; - bus->hotplug = hotplug; - bus->hotplug_qdev = qdev; -} - PCIBus *pci_register_bus(DeviceState *parent, const char *name, pci_set_irq_fn set_irq, pci_map_irq_fn map_irq, void *irq_opaque, @@ -1778,29 +1772,9 @@ static int pci_qdev_init(DeviceState *qdev) } pci_add_option_rom(pci_dev, is_default_rom); - if (bus->hotplug) { - /* Let buses differentiate between hotplug and when device is - * enabled during qemu machine creation. */ - rc = bus->hotplug(bus->hotplug_qdev, pci_dev, - qdev->hotplugged ? PCI_HOTPLUG_ENABLED: - PCI_COLDPLUG_ENABLED); - if (rc != 0) { - int r = pci_unregister_device(&pci_dev->qdev); - assert(!r); - return rc; - } - } return 0; } -static int pci_unplug_device(DeviceState *qdev) -{ - PCIDevice *dev = PCI_DEVICE(qdev); - - return dev->bus->hotplug(dev->bus->hotplug_qdev, dev, - PCI_HOTPLUG_DISABLED); -} - PCIDevice *pci_create_multifunction(PCIBus *bus, int devfn, bool multifunction, const char *name) { @@ -2271,7 +2245,6 @@ static void pci_device_class_init(ObjectClass *klass, void *data) { DeviceClass *k = DEVICE_CLASS(klass); k->init = pci_qdev_init; - k->unplug = pci_unplug_device; k->exit = pci_unregister_device; k->bus_type = TYPE_PCI_BUS; k->props = pci_props; diff --git a/include/hw/pci/pci.h b/include/hw/pci/pci.h index c173b6a85e..693dd6b658 100644 --- a/include/hw/pci/pci.h +++ b/include/hw/pci/pci.h @@ -327,15 +327,6 @@ typedef void (*pci_set_irq_fn)(void *opaque, int irq_num, int level); typedef int (*pci_map_irq_fn)(PCIDevice *pci_dev, int irq_num); typedef PCIINTxRoute (*pci_route_irq_fn)(void *opaque, int pin); -typedef enum { - PCI_HOTPLUG_DISABLED, - PCI_HOTPLUG_ENABLED, - PCI_COLDPLUG_ENABLED, -} PCIHotplugState; - -typedef int (*pci_hotplug_fn)(DeviceState *qdev, PCIDevice *pci_dev, - PCIHotplugState state); - #define TYPE_PCI_BUS "PCI" #define PCI_BUS(obj) OBJECT_CHECK(PCIBus, (obj), TYPE_PCI_BUS) #define TYPE_PCIE_BUS "PCIE" @@ -354,7 +345,6 @@ PCIBus *pci_bus_new(DeviceState *parent, const char *name, void pci_bus_irqs(PCIBus *bus, pci_set_irq_fn set_irq, pci_map_irq_fn map_irq, void *irq_opaque, int nirq); int pci_bus_get_irq_level(PCIBus *bus, int irq_num); -void pci_bus_hotplug(PCIBus *bus, pci_hotplug_fn hotplug, DeviceState *dev); /* 0 <= pin <= 3 0 = INTA, 1 = INTB, 2 = INTC, 3 = INTD */ int pci_swizzle_map_irq_fn(PCIDevice *pci_dev, int pin); PCIBus *pci_register_bus(DeviceState *parent, const char *name, diff --git a/include/hw/pci/pci_bus.h b/include/hw/pci/pci_bus.h index 9df17885ec..fabaeee86b 100644 --- a/include/hw/pci/pci_bus.h +++ b/include/hw/pci/pci_bus.h @@ -16,8 +16,6 @@ struct PCIBus { pci_set_irq_fn set_irq; pci_map_irq_fn map_irq; pci_route_irq_fn route_intx_to_irq; - pci_hotplug_fn hotplug; - DeviceState *hotplug_qdev; void *irq_opaque; PCIDevice *devices[PCI_SLOT_MAX * PCI_FUNC_MAX]; PCIDevice *parent_dev; diff --git a/tests/Makefile b/tests/Makefile index fd36eee641..9a7d2f1008 100644 --- a/tests/Makefile +++ b/tests/Makefile @@ -163,7 +163,7 @@ tests/test-xbzrle$(EXESUF): tests/test-xbzrle.o xbzrle.o page_cache.o libqemuuti tests/test-cutils$(EXESUF): tests/test-cutils.o util/cutils.o tests/test-int128$(EXESUF): tests/test-int128.o tests/test-qdev-global-props$(EXESUF): tests/test-qdev-global-props.o \ - hw/core/qdev.o hw/core/qdev-properties.o \ + hw/core/qdev.o hw/core/qdev-properties.o hw/core/hotplug.o\ hw/core/irq.o \ $(qom-core-obj) \ $(test-qapi-obj-y) \ -- cgit v1.2.1 From 417c45ab2f847c0a47b1232f611aa886df6a97d5 Mon Sep 17 00:00:00 2001 From: "Gabriel L. Somlo" Date: Fri, 7 Feb 2014 10:30:40 -0500 Subject: ACPI: Remove commented-out code from HPET._CRS IRQNoFlags on HPET._CRS crashes WinXP because it causes the HPET to conflict with the system timer and/or the RTC. It only occurs on Apple hardware, and even there it is exposed fully only when OS X is detected (via _OSI). Recent OS X versions work on QEMU without this statement, so at this time there is no need to find a better way to conditionally include the statement. This patch removes the commented out (and wrong, should have been {0, 8}) statement from HPET._CRS. Signed-off-by: Gabriel Somlo Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin Reviewed-By: Igor Mammedov --- hw/i386/acpi-dsdt-hpet.dsl | 3 --- 1 file changed, 3 deletions(-) diff --git a/hw/i386/acpi-dsdt-hpet.dsl b/hw/i386/acpi-dsdt-hpet.dsl index dfde174317..44961b87a1 100644 --- a/hw/i386/acpi-dsdt-hpet.dsl +++ b/hw/i386/acpi-dsdt-hpet.dsl @@ -39,9 +39,6 @@ Scope(\_SB) { Return (0x0F) } Name(_CRS, ResourceTemplate() { -#if 0 /* This makes WinXP BSOD for not yet figured reasons. */ - IRQNoFlags() {2, 8} -#endif Memory32Fixed(ReadOnly, 0xFED00000, // Address Base 0x00000400, // Address Length -- cgit v1.2.1