diff options
| author | Michael S. Tsirkin <mst@redhat.com> | 2010-11-12 16:21:35 +0900 |
|---|---|---|
| committer | Anthony Liguori <aliguori@us.ibm.com> | 2010-11-16 08:40:08 -0600 |
| commit | 4cff0a5994d0300e6e77e90d3354aa517a120539 (patch) | |
| tree | af31acd6175da6ae084456ad057ac0e067227380 /hw/acpi_piix4.c | |
| parent | a6a9239cd87d1bcdade909cf71413686fb70f8d0 (diff) | |
| download | qemu-4cff0a5994d0300e6e77e90d3354aa517a120539.tar.gz | |
pci: allow hotplug removal of cold-plugged devices
This patch fixes hot unplug of cold plugged devices
(those present at system start), which got broken by
5beb8ad503c88a76f2b8106c3b74b4ce485a60e1 .
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Cam Macdonell <cam@cs.ualberta.ca>
Tested-by: Cam Macdonell <cam@cs.ualberta.ca>
Reported-by: Cam Macdonell <cam@cs.ualberta.ca>.
Diffstat (limited to 'hw/acpi_piix4.c')
| -rw-r--r-- | hw/acpi_piix4.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/hw/acpi_piix4.c b/hw/acpi_piix4.c index 66c7885d62..f549089a55 100644 --- a/hw/acpi_piix4.c +++ b/hw/acpi_piix4.c @@ -585,7 +585,8 @@ static void pciej_write(void *opaque, uint32_t addr, uint32_t val) PIIX4_DPRINTF("pciej write %x <== %d\n", addr, val); } -static int piix4_device_hotplug(DeviceState *qdev, PCIDevice *dev, int state); +static int piix4_device_hotplug(DeviceState *qdev, PCIDevice *dev, + PCIHotplugState state); static void piix4_acpi_system_hot_add_init(PCIBus *bus, PIIX4PMState *s) { @@ -615,18 +616,23 @@ static void disable_device(PIIX4PMState *s, int slot) s->pci0_status.down |= (1 << slot); } -static int piix4_device_hotplug(DeviceState *qdev, PCIDevice *dev, int state) +static int piix4_device_hotplug(DeviceState *qdev, PCIDevice *dev, + PCIHotplugState state) { int slot = PCI_SLOT(dev->devfn); PIIX4PMState *s = DO_UPCAST(PIIX4PMState, dev, DO_UPCAST(PCIDevice, qdev, qdev)); - if (!dev->qdev.hotplugged) + /* 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; + } s->pci0_status.up = 0; s->pci0_status.down = 0; - if (state) { + if (state == PCI_HOTPLUG_ENABLED) { enable_device(s, slot); } else { disable_device(s, slot); |