diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/block/block_int.h | 2 | ||||
| -rw-r--r-- | include/exec/memory.h | 162 | ||||
| -rw-r--r-- | include/hw/boards.h | 29 | ||||
| -rw-r--r-- | include/hw/ppc/pnv_psi.h | 2 | ||||
| -rw-r--r-- | include/hw/ppc/spapr.h | 24 | ||||
| -rw-r--r-- | include/hw/ppc/spapr_drc.h | 74 | ||||
| -rw-r--r-- | include/hw/ppc/spapr_ovec.h | 1 | ||||
| -rw-r--r-- | include/qemu/coroutine.h | 18 |
8 files changed, 260 insertions, 52 deletions
diff --git a/include/block/block_int.h b/include/block/block_int.h index 669a2797fd..5c6b761d81 100644 --- a/include/block/block_int.h +++ b/include/block/block_int.h @@ -324,7 +324,7 @@ struct BlockDriver { * Drain and stop any internal sources of requests in the driver, and * remain so until next I/O callback (e.g. bdrv_co_writev) is called. */ - void (*bdrv_drain)(BlockDriverState *bs); + void coroutine_fn (*bdrv_co_drain)(BlockDriverState *bs); void (*bdrv_add_child)(BlockDriverState *parent, BlockDriverState *child, Error **errp); diff --git a/include/exec/memory.h b/include/exec/memory.h index b7966014fe..400dd4491b 100644 --- a/include/exec/memory.h +++ b/include/exec/memory.h @@ -420,8 +420,9 @@ void memory_region_init_io(MemoryRegion *mr, uint64_t size); /** - * memory_region_init_ram: Initialize RAM memory region. Accesses into the - * region will modify memory directly. + * memory_region_init_ram_nomigrate: Initialize RAM memory region. Accesses + * into the region will modify memory + * directly. * * @mr: the #MemoryRegion to be initialized. * @owner: the object that tracks the region's reference count @@ -429,12 +430,15 @@ void memory_region_init_io(MemoryRegion *mr, * must be unique within any device * @size: size of the region. * @errp: pointer to Error*, to store an error if it happens. + * + * Note that this function does not do anything to cause the data in the + * RAM memory region to be migrated; that is the responsibility of the caller. */ -void memory_region_init_ram(MemoryRegion *mr, - struct Object *owner, - const char *name, - uint64_t size, - Error **errp); +void memory_region_init_ram_nomigrate(MemoryRegion *mr, + struct Object *owner, + const char *name, + uint64_t size, + Error **errp); /** * memory_region_init_resizeable_ram: Initialize memory region with resizeable @@ -451,6 +455,9 @@ void memory_region_init_ram(MemoryRegion *mr, * @max_size: max size of the region. * @resized: callback to notify owner about used size change. * @errp: pointer to Error*, to store an error if it happens. + * + * Note that this function does not do anything to cause the data in the + * RAM memory region to be migrated; that is the responsibility of the caller. */ void memory_region_init_resizeable_ram(MemoryRegion *mr, struct Object *owner, @@ -474,6 +481,9 @@ void memory_region_init_resizeable_ram(MemoryRegion *mr, * @share: %true if memory must be mmaped with the MAP_SHARED flag * @path: the path in which to allocate the RAM. * @errp: pointer to Error*, to store an error if it happens. + * + * Note that this function does not do anything to cause the data in the + * RAM memory region to be migrated; that is the responsibility of the caller. */ void memory_region_init_ram_from_file(MemoryRegion *mr, struct Object *owner, @@ -494,6 +504,9 @@ void memory_region_init_ram_from_file(MemoryRegion *mr, * @share: %true if memory must be mmaped with the MAP_SHARED flag * @fd: the fd to mmap. * @errp: pointer to Error*, to store an error if it happens. + * + * Note that this function does not do anything to cause the data in the + * RAM memory region to be migrated; that is the responsibility of the caller. */ void memory_region_init_ram_from_fd(MemoryRegion *mr, struct Object *owner, @@ -515,6 +528,9 @@ void memory_region_init_ram_from_fd(MemoryRegion *mr, * must be unique within any device * @size: size of the region. * @ptr: memory to be mapped; must contain at least @size bytes. + * + * Note that this function does not do anything to cause the data in the + * RAM memory region to be migrated; that is the responsibility of the caller. */ void memory_region_init_ram_ptr(MemoryRegion *mr, struct Object *owner, @@ -539,6 +555,10 @@ void memory_region_init_ram_ptr(MemoryRegion *mr, * @name: the name of the region. * @size: size of the region. * @ptr: memory to be mapped; must contain at least @size bytes. + * + * Note that this function does not do anything to cause the data in the + * RAM memory region to be migrated; that is the responsibility of the caller. + * (For RAM device memory regions, migrating the contents rarely makes sense.) */ void memory_region_init_ram_device_ptr(MemoryRegion *mr, struct Object *owner, @@ -566,12 +586,16 @@ void memory_region_init_alias(MemoryRegion *mr, uint64_t size); /** - * memory_region_init_rom: Initialize a ROM memory region. + * memory_region_init_rom_nomigrate: Initialize a ROM memory region. * - * This has the same effect as calling memory_region_init_ram() + * This has the same effect as calling memory_region_init_ram_nomigrate() * and then marking the resulting region read-only with * memory_region_set_readonly(). * + * Note that this function does not do anything to cause the data in the + * RAM side of the memory region to be migrated; that is the responsibility + * of the caller. + * * @mr: the #MemoryRegion to be initialized. * @owner: the object that tracks the region's reference count * @name: Region name, becomes part of RAMBlock name used in migration stream @@ -579,15 +603,19 @@ void memory_region_init_alias(MemoryRegion *mr, * @size: size of the region. * @errp: pointer to Error*, to store an error if it happens. */ -void memory_region_init_rom(MemoryRegion *mr, - struct Object *owner, - const char *name, - uint64_t size, - Error **errp); +void memory_region_init_rom_nomigrate(MemoryRegion *mr, + struct Object *owner, + const char *name, + uint64_t size, + Error **errp); /** - * memory_region_init_rom_device: Initialize a ROM memory region. Writes are - * handled via callbacks. + * memory_region_init_rom_device_nomigrate: Initialize a ROM memory region. + * Writes are handled via callbacks. + * + * Note that this function does not do anything to cause the data in the + * RAM side of the memory region to be migrated; that is the responsibility + * of the caller. * * @mr: the #MemoryRegion to be initialized. * @owner: the object that tracks the region's reference count @@ -597,13 +625,13 @@ void memory_region_init_rom(MemoryRegion *mr, * @size: size of the region. * @errp: pointer to Error*, to store an error if it happens. */ -void memory_region_init_rom_device(MemoryRegion *mr, - struct Object *owner, - const MemoryRegionOps *ops, - void *opaque, - const char *name, - uint64_t size, - Error **errp); +void memory_region_init_rom_device_nomigrate(MemoryRegion *mr, + struct Object *owner, + const MemoryRegionOps *ops, + void *opaque, + const char *name, + uint64_t size, + Error **errp); /** * memory_region_init_reservation: Initialize a memory region that reserves @@ -651,6 +679,94 @@ void memory_region_init_iommu(void *_iommu_mr, uint64_t size); /** + * memory_region_init_ram - Initialize RAM memory region. Accesses into the + * region will modify memory directly. + * + * @mr: the #MemoryRegion to be initialized + * @owner: the object that tracks the region's reference count (must be + * TYPE_DEVICE or a subclass of TYPE_DEVICE, or NULL) + * @name: name of the memory region + * @size: size of the region in bytes + * @errp: pointer to Error*, to store an error if it happens. + * + * This function allocates RAM for a board model or device, and + * arranges for it to be migrated (by calling vmstate_register_ram() + * if @owner is a DeviceState, or vmstate_register_ram_global() if + * @owner is NULL). + * + * TODO: Currently we restrict @owner to being either NULL (for + * global RAM regions with no owner) or devices, so that we can + * give the RAM block a unique name for migration purposes. + * We should lift this restriction and allow arbitrary Objects. + * If you pass a non-NULL non-device @owner then we will assert. + */ +void memory_region_init_ram(MemoryRegion *mr, + struct Object *owner, + const char *name, + uint64_t size, + Error **errp); + +/** + * memory_region_init_rom: Initialize a ROM memory region. + * + * This has the same effect as calling memory_region_init_ram() + * and then marking the resulting region read-only with + * memory_region_set_readonly(). This includes arranging for the + * contents to be migrated. + * + * TODO: Currently we restrict @owner to being either NULL (for + * global RAM regions with no owner) or devices, so that we can + * give the RAM block a unique name for migration purposes. + * We should lift this restriction and allow arbitrary Objects. + * If you pass a non-NULL non-device @owner then we will assert. + * + * @mr: the #MemoryRegion to be initialized. + * @owner: the object that tracks the region's reference count + * @name: Region name, becomes part of RAMBlock name used in migration stream + * must be unique within any device + * @size: size of the region. + * @errp: pointer to Error*, to store an error if it happens. + */ +void memory_region_init_rom(MemoryRegion *mr, + struct Object *owner, + const char *name, + uint64_t size, + Error **errp); + +/** + * memory_region_init_rom_device: Initialize a ROM memory region. + * Writes are handled via callbacks. + * + * This function initializes a memory region backed by RAM for reads + * and callbacks for writes, and arranges for the RAM backing to + * be migrated (by calling vmstate_register_ram() + * if @owner is a DeviceState, or vmstate_register_ram_global() if + * @owner is NULL). + * + * TODO: Currently we restrict @owner to being either NULL (for + * global RAM regions with no owner) or devices, so that we can + * give the RAM block a unique name for migration purposes. + * We should lift this restriction and allow arbitrary Objects. + * If you pass a non-NULL non-device @owner then we will assert. + * + * @mr: the #MemoryRegion to be initialized. + * @owner: the object that tracks the region's reference count + * @ops: callbacks for write access handling (must not be NULL). + * @name: Region name, becomes part of RAMBlock name used in migration stream + * must be unique within any device + * @size: size of the region. + * @errp: pointer to Error*, to store an error if it happens. + */ +void memory_region_init_rom_device(MemoryRegion *mr, + struct Object *owner, + const MemoryRegionOps *ops, + void *opaque, + const char *name, + uint64_t size, + Error **errp); + + +/** * memory_region_owner: get a memory region's owner. * * @mr: the memory region being queried. diff --git a/include/hw/boards.h b/include/hw/boards.h index 76ce0219ff..3363dd19fd 100644 --- a/include/hw/boards.h +++ b/include/hw/boards.h @@ -9,6 +9,35 @@ #include "qom/object.h" #include "qom/cpu.h" +/** + * memory_region_allocate_system_memory - Allocate a board's main memory + * @mr: the #MemoryRegion to be initialized + * @owner: the object that tracks the region's reference count + * @name: name of the memory region + * @ram_size: size of the region in bytes + * + * This function allocates the main memory for a board model, and + * initializes @mr appropriately. It also arranges for the memory + * to be migrated (by calling vmstate_register_ram_global()). + * + * Memory allocated via this function will be backed with the memory + * backend the user provided using "-mem-path" or "-numa node,memdev=..." + * if appropriate; this is typically used to cause host huge pages to be + * used. This function should therefore be called by a board exactly once, + * for the primary or largest RAM area it implements. + * + * For boards where the major RAM is split into two parts in the memory + * map, you can deal with this by calling memory_region_allocate_system_memory() + * once to get a MemoryRegion with enough RAM for both parts, and then + * creating alias MemoryRegions via memory_region_init_alias() which + * alias into different parts of the RAM MemoryRegion and can be mapped + * into the memory map in the appropriate places. + * + * Smaller pieces of memory (display RAM, static RAMs, etc) don't need + * to be backed via the -mem-path memory backend and can simply + * be created via memory_region_allocate_aux_memory() or + * memory_region_init_ram(). + */ void memory_region_allocate_system_memory(MemoryRegion *mr, Object *owner, const char *name, uint64_t ram_size); diff --git a/include/hw/ppc/pnv_psi.h b/include/hw/ppc/pnv_psi.h index 11d83e43f8..f6af5eae1f 100644 --- a/include/hw/ppc/pnv_psi.h +++ b/include/hw/ppc/pnv_psi.h @@ -28,8 +28,6 @@ #define PSIHB_XSCOM_MAX 0x20 -typedef struct XICSState XICSState; - typedef struct PnvPsi { SysBusDevice parent; diff --git a/include/hw/ppc/spapr.h b/include/hw/ppc/spapr.h index 5f708eec23..2a303a705c 100644 --- a/include/hw/ppc/spapr.h +++ b/include/hw/ppc/spapr.h @@ -13,6 +13,7 @@ struct sPAPRPHBState; struct sPAPRNVRAM; typedef struct sPAPREventLogEntry sPAPREventLogEntry; typedef struct sPAPREventSource sPAPREventSource; +typedef struct sPAPRPendingHPT sPAPRPendingHPT; #define HPTE64_V_HPTE_DIRTY 0x0000000000000040ULL #define SPAPR_ENTRY_POINT 0x100 @@ -42,6 +43,13 @@ typedef struct sPAPRMachineClass sPAPRMachineClass; #define SPAPR_MACHINE_CLASS(klass) \ OBJECT_CLASS_CHECK(sPAPRMachineClass, klass, TYPE_SPAPR_MACHINE) +typedef enum { + SPAPR_RESIZE_HPT_DEFAULT = 0, + SPAPR_RESIZE_HPT_DISABLED, + SPAPR_RESIZE_HPT_ENABLED, + SPAPR_RESIZE_HPT_REQUIRED, +} sPAPRResizeHPT; + /** * sPAPRMachineClass: */ @@ -58,6 +66,7 @@ struct sPAPRMachineClass { uint64_t *buid, hwaddr *pio, hwaddr *mmio32, hwaddr *mmio64, unsigned n_dma, uint32_t *liobns, Error **errp); + sPAPRResizeHPT resize_hpt_default; }; /** @@ -73,9 +82,12 @@ struct sPAPRMachineState { ICSState *ics; sPAPRRTCState rtc; + sPAPRResizeHPT resize_hpt; void *htab; uint32_t htab_shift; uint64_t patb_entry; /* Process tbl registed in H_REGISTER_PROCESS_TABLE */ + sPAPRPendingHPT *pending_hpt; /* in-progress resize */ + hwaddr rma_size; int vrma_adjust; ssize_t rtas_size; @@ -367,6 +379,8 @@ struct sPAPRMachineState { #define H_XIRR_X 0x2FC #define H_RANDOM 0x300 #define H_SET_MODE 0x31C +#define H_RESIZE_HPT_PREPARE 0x36C +#define H_RESIZE_HPT_COMMIT 0x370 #define H_CLEAN_SLB 0x374 #define H_INVALIDATE_PID 0x378 #define H_REGISTER_PROC_TBL 0x37C @@ -607,8 +621,9 @@ struct sPAPRTCETable { sPAPRTCETable *spapr_tce_find_by_liobn(target_ulong liobn); struct sPAPREventLogEntry { - int log_type; - void *data; + uint32_t summary; + uint32_t extended_length; + void *extended_log; QTAILQ_ENTRY(sPAPREventLogEntry) next; }; @@ -644,6 +659,9 @@ void spapr_hotplug_req_add_by_count_indexed(sPAPRDRConnectorType drc_type, void spapr_hotplug_req_remove_by_count_indexed(sPAPRDRConnectorType drc_type, uint32_t count, uint32_t index); void spapr_cpu_parse_features(sPAPRMachineState *spapr); +int spapr_hpt_shift_for_ramsize(uint64_t ramsize); +void spapr_reallocate_hpt(sPAPRMachineState *spapr, int shift, + Error **errp); /* CPU and LMB DRC release callbacks. */ void spapr_core_release(DeviceState *dev); @@ -684,4 +702,6 @@ int spapr_rng_populate_dt(void *fdt); void spapr_do_system_reset_on_cpu(CPUState *cs, run_on_cpu_data arg); +#define HTAB_SIZE(spapr) (1ULL << ((spapr)->htab_shift)) + #endif /* HW_SPAPR_H */ diff --git a/include/hw/ppc/spapr_drc.h b/include/hw/ppc/spapr_drc.h index d15e9eb3b4..a7958d0a8d 100644 --- a/include/hw/ppc/spapr_drc.h +++ b/include/hw/ppc/spapr_drc.h @@ -15,6 +15,7 @@ #include <libfdt.h> #include "qom/object.h" +#include "sysemu/sysemu.h" #include "hw/qdev.h" #define TYPE_SPAPR_DR_CONNECTOR "spapr-dr-connector" @@ -32,7 +33,7 @@ #define SPAPR_DRC_PHYSICAL_CLASS(klass) \ OBJECT_CLASS_CHECK(sPAPRDRConnectorClass, klass, \ TYPE_SPAPR_DRC_PHYSICAL) -#define SPAPR_DRC_PHYSICAL(obj) OBJECT_CHECK(sPAPRDRConnector, (obj), \ +#define SPAPR_DRC_PHYSICAL(obj) OBJECT_CHECK(sPAPRDRCPhysical, (obj), \ TYPE_SPAPR_DRC_PHYSICAL) #define TYPE_SPAPR_DRC_LOGICAL "spapr-drc-logical" @@ -172,11 +173,23 @@ typedef enum { SPAPR_DR_CC_RESPONSE_NOT_CONFIGURABLE = -9003, } sPAPRDRCCResponse; -/* rtas-configure-connector state */ -typedef struct sPAPRConfigureConnectorState { - int fdt_offset; - int fdt_depth; -} sPAPRConfigureConnectorState; +typedef enum { + /* + * Values come from Fig. 12 in LoPAPR section 13.4 + * + * These are exposed in the migration stream, so don't change + * them. + */ + SPAPR_DRC_STATE_INVALID = 0, + SPAPR_DRC_STATE_LOGICAL_UNUSABLE = 1, + SPAPR_DRC_STATE_LOGICAL_AVAILABLE = 2, + SPAPR_DRC_STATE_LOGICAL_UNISOLATE = 3, + SPAPR_DRC_STATE_LOGICAL_CONFIGURED = 4, + SPAPR_DRC_STATE_PHYSICAL_AVAILABLE = 5, + SPAPR_DRC_STATE_PHYSICAL_POWERON = 6, + SPAPR_DRC_STATE_PHYSICAL_UNISOLATE = 7, + SPAPR_DRC_STATE_PHYSICAL_CONFIGURED = 8, +} sPAPRDRCState; typedef struct sPAPRDRConnector { /*< private >*/ @@ -185,29 +198,25 @@ typedef struct sPAPRDRConnector { uint32_t id; Object *owner; - /* DR-indicator */ - uint32_t dr_indicator; + uint32_t state; - /* sensor/indicator states */ - uint32_t isolation_state; - uint32_t allocation_state; - - /* configure-connector state */ - void *fdt; - int fdt_start_offset; - bool configured; - sPAPRConfigureConnectorState *ccs; - - bool awaiting_release; - bool awaiting_allocation; + /* RTAS ibm,configure-connector state */ + /* (only valid in UNISOLATE state) */ + int ccs_offset; + int ccs_depth; /* device pointer, via link property */ DeviceState *dev; + bool unplug_requested; + void *fdt; + int fdt_start_offset; } sPAPRDRConnector; typedef struct sPAPRDRConnectorClass { /*< private >*/ DeviceClass parent; + sPAPRDRCState empty_state; + sPAPRDRCState ready_state; /*< public >*/ sPAPRDRConnectorTypeShift typeshift; @@ -218,11 +227,23 @@ typedef struct sPAPRDRConnectorClass { uint32_t (*isolate)(sPAPRDRConnector *drc); uint32_t (*unisolate)(sPAPRDRConnector *drc); void (*release)(DeviceState *dev); - - /* QEMU interfaces for managing hotplug operations */ - bool (*release_pending)(sPAPRDRConnector *drc); } sPAPRDRConnectorClass; +typedef struct sPAPRDRCPhysical { + /*< private >*/ + sPAPRDRConnector parent; + + /* DR-indicator */ + uint32_t dr_indicator; +} sPAPRDRCPhysical; + +static inline bool spapr_drc_hotplugged(DeviceState *dev) +{ + return dev->hotplugged && !runstate_check(RUN_STATE_INMIGRATE); +} + +void spapr_drc_reset(sPAPRDRConnector *drc); + uint32_t spapr_drc_index(sPAPRDRConnector *drc); sPAPRDRConnectorType spapr_drc_type(sPAPRDRConnector *drc); @@ -235,6 +256,11 @@ int spapr_drc_populate_dt(void *fdt, int fdt_offset, Object *owner, void spapr_drc_attach(sPAPRDRConnector *drc, DeviceState *d, void *fdt, int fdt_start_offset, Error **errp); -void spapr_drc_detach(sPAPRDRConnector *drc, DeviceState *d, Error **errp); +void spapr_drc_detach(sPAPRDRConnector *drc); + +static inline bool spapr_drc_unplug_requested(sPAPRDRConnector *drc) +{ + return drc->unplug_requested; +} #endif /* HW_SPAPR_DRC_H */ diff --git a/include/hw/ppc/spapr_ovec.h b/include/hw/ppc/spapr_ovec.h index 0b464e22e7..9edfa5ff75 100644 --- a/include/hw/ppc/spapr_ovec.h +++ b/include/hw/ppc/spapr_ovec.h @@ -50,6 +50,7 @@ typedef struct sPAPROptionVector sPAPROptionVector; #define OV5_DRCONF_MEMORY OV_BIT(2, 2) #define OV5_FORM1_AFFINITY OV_BIT(5, 0) #define OV5_HP_EVT OV_BIT(6, 5) +#define OV5_HPT_RESIZE OV_BIT(6, 7) #define OV5_XIVE_EXPLOIT OV_BIT(23, 7) /* ISA 3.00 MMU features: */ diff --git a/include/qemu/coroutine.h b/include/qemu/coroutine.h index a4509bd977..9aff9a735e 100644 --- a/include/qemu/coroutine.h +++ b/include/qemu/coroutine.h @@ -229,6 +229,24 @@ void qemu_co_rwlock_init(CoRwlock *lock); void qemu_co_rwlock_rdlock(CoRwlock *lock); /** + * Write Locks the CoRwlock from a reader. This is a bit more efficient than + * @qemu_co_rwlock_unlock followed by a separate @qemu_co_rwlock_wrlock. + * However, if the lock cannot be upgraded immediately, control is transferred + * to the caller of the current coroutine. Also, @qemu_co_rwlock_upgrade + * only overrides CoRwlock fairness if there are no concurrent readers, so + * another writer might run while @qemu_co_rwlock_upgrade blocks. + */ +void qemu_co_rwlock_upgrade(CoRwlock *lock); + +/** + * Downgrades a write-side critical section to a reader. Downgrading with + * @qemu_co_rwlock_downgrade never blocks, unlike @qemu_co_rwlock_unlock + * followed by @qemu_co_rwlock_rdlock. This makes it more efficient, but + * may also sometimes be necessary for correctness. + */ +void qemu_co_rwlock_downgrade(CoRwlock *lock); + +/** * Write Locks the mutex. If the lock cannot be taken immediately because * of a parallel reader, control is transferred to the caller of the current * coroutine. |