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68a27b208a
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Michael S. Tsirkin 68a27b208a virtio-pci: fix migration for pci bus master 
Current support for bus master (clearing OK bit) together with the need to
support guests which do not enable PCI bus mastering, leads to extra state in
VIRTIO_PCI_FLAG_BUS_MASTER_BUG bit, which isn't robust in case of cross-version
migration for the case when guests use the device before setting DRIVER_OK.

Rip out this code, and replace it:
-   Modern QEMU doesn't need VIRTIO_PCI_FLAG_BUS_MASTER_BUG
    so just drop it for latest machine type.
-   For compat machine types, set PCI_COMMAND if DRIVER_OK
    is set.

As this is needed for 2.1 for both pc and ppc, move PC_COMPAT macros from pc.h
to a new common header.

Cc: Greg Kurz <gkurz@linux.vnet.ibm.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Alexander Graf <agraf@suse.de>
2014-11-02 12:03:03 +02:00
..
9pfs hw/9pfs: Don't return type from host in readdir on local 9p filesystem 2014-09-04 10:51:13 -05:00
acpi qdev: HotplugHandler: Rename unplug callback to unplug_request 2014-10-15 05:03:13 +02:00
alpha ide: Update ide_drive_get to be HBA agnostic 2014-10-03 10:30:33 +01:00
arm arm/virt: enable PSCI emulation support for system emulation 2014-10-24 12:19:13 +01:00
audio ac97: register reset via qom 2014-09-29 10:20:05 +02:00
block blockdev: Fix blockdev-add not to create DriveInfo 2014-10-20 14:03:50 +02:00
bt l2cap: fix access to freed memory 2014-08-15 19:12:48 +04:00
char virtio-serial: Convert to hotplug-handler API 2014-10-15 05:03:13 +02:00
core virtio-scsi fixes, the first part of dynamic sysbus devices, 2014-10-30 13:35:12 +00:00
cpu target-i386: ICC bus: Drop BusState::allow_hotplug 2014-10-15 05:03:13 +02:00
cris hw: Convert from BlockDriverState to BlockBackend, mostly 2014-10-20 14:02:25 +02:00
display vmware-vga: use vmsvga_verify_rect in vmsvga_fill_rect 2014-10-29 12:01:30 +01:00
dma hw/dma/i8257: Silence phony error message 2014-09-16 12:35:02 +02:00
gpio pl061: implement input interrupt logic 2014-09-12 14:06:48 +01:00
i2c Fix debug print warning 2014-09-02 22:38:16 +04:00
i386 virtio-pci: fix migration for pci bus master 2014-11-02 12:03:03 +02:00
ide fix off-by-one error in pci_piix3_xen_ide_unplug 2014-10-30 14:16:39 +00:00
input hw/input/tsc210x.c: Delete unused array tsc2101_rates 2014-09-29 18:48:48 +01:00
intc arm_gic: remove unused parameter. 2014-10-24 12:19:11 +01:00
ipack memory: remove memory_region_destroy 2014-08-18 12:06:21 +02:00
isa hw: Convert from BlockDriverState to BlockBackend, mostly 2014-10-20 14:02:25 +02:00
lm32 hw: Convert from BlockDriverState to BlockBackend, mostly 2014-10-20 14:02:25 +02:00
m68k memory: add parameter errp to memory_region_init_ram 2014-09-09 13:41:43 +02:00
mem pc-dimm: Don't check dimm->node when there is non-NUMA config 2014-09-29 19:44:04 +03:00
microblaze hw: Convert from BlockDriverState to BlockBackend, mostly 2014-10-20 14:02:25 +02:00
mips Block patches 2014-10-22 16:39:49 +01:00
misc omap_gpmc.c: Remove duplicate assignment 2014-10-24 12:19:12 +01:00
moxie memory: add parameter errp to memory_region_init_ram 2014-09-09 13:41:43 +02:00
net bootindex: move calling add_boot_device_patch to bootindex setter function 2014-10-15 10:46:01 +02:00
nvram hw: Convert from BlockDriverState to BlockBackend, mostly 2014-10-20 14:02:25 +02:00
openrisc memory: add parameter errp to memory_region_init_ram 2014-09-09 13:41:43 +02:00
pci pcie: change confused comment clearer 2014-11-02 11:52:24 +02:00
pci-bridge qdev: HotplugHandler: Rename unplug callback to unplug_request 2014-10-15 05:03:13 +02:00
pci-host - Memory: improve error reporting and avoid crashes on hotplug 2014-09-12 16:55:49 +01:00
pcmcia hmp: Remove "info pcmcia" 2014-10-24 12:19:11 +01:00
ppc virtio-pci: fix migration for pci bus master 2014-11-02 12:03:03 +02:00
s390x virtio: link the rng backend through an alias property 2014-10-30 12:59:27 +00:00
scsi hw/scsi/virtio-scsi.c: fix the "type" use error in virtio_scsi_handle_ctrl 2014-10-27 16:11:45 +01:00
sd hw: Convert from BlockDriverState to BlockBackend, mostly 2014-10-20 14:02:25 +02:00
sh4 hw: Convert from BlockDriverState to BlockBackend, mostly 2014-10-20 14:02:25 +02:00
sparc hw: Convert from BlockDriverState to BlockBackend, mostly 2014-10-20 14:02:25 +02:00
sparc64 hw: Convert from BlockDriverState to BlockBackend, mostly 2014-10-20 14:02:25 +02:00
ssi ssi: xilinx_spi: Initialise CS GPIOs as NULL 2014-08-15 18:54:40 +04:00
timer mc146818rtc: add missed field to vmstate 2014-09-11 12:20:32 +02:00
tpm hw: Convert from BlockDriverState to BlockBackend, mostly 2014-10-20 14:02:25 +02:00
tricore hw: Convert from BlockDriverState to BlockBackend, mostly 2014-10-20 14:02:25 +02:00
unicore32 memory: add parameter errp to memory_region_init_ram 2014-09-09 13:41:43 +02:00
usb uhci: remove useless DEBUG 2014-10-28 11:38:18 +01:00
virtio virtio-pci: fix migration for pci bus master 2014-11-02 12:03:03 +02:00
watchdog memory: remove memory_region_destroy 2014-08-18 12:06:21 +02:00
xen hw: Convert from BlockDriverState to BlockBackend, mostly 2014-10-20 14:02:25 +02:00
xenpv hw: Convert from BlockDriverState to BlockBackend, mostly 2014-10-20 14:02:25 +02:00
xtensa hw: Convert from BlockDriverState to BlockBackend, mostly 2014-10-20 14:02:25 +02:00
Makefile.objs pc: implement pc-dimm device abstraction 2014-06-19 16:41:47 +03:00