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0793169870
xemu/hw
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Fam Zheng 0793169870 virtio: Report real progress in VQ aio poll handler 
In virtio_queue_host_notifier_aio_poll, not all "!virtio_queue_empty()"
cases are making true progress.

Currently the offending one is virtio-scsi event queue, whose handler
does nothing if no event is pending. As a result aio_poll() will spin on
the "non-empty" VQ and take 100% host CPU.

Fix this by reporting actual progress from virtio queue aio handlers.

Reported-by: Ed Swierk <eswierk@skyportsystems.com>
Signed-off-by: Fam Zheng <famz@redhat.com>
Tested-by: Ed Swierk <eswierk@skyportsystems.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2017-02-17 21:52:30 +02:00
..
9pfs This pull request fixes a 2.9 regression and a long standing bug that can 2017-01-25 17:54:14 +00:00
acpi machine: Make possible_cpu_arch_ids() return const pointer 2017-01-23 21:25:37 -02:00
adc STM32F2xx: Add the ADC device 2016-10-04 13:28:07 +01:00
alpha Move target-* CPU file into a target/ folder 2016-12-20 21:52:12 +01:00
arm aspeed: remove useless comment on controller segment size 2017-02-10 17:40:29 +00:00
audio es1370: wire up reset via DeviceClass 2017-01-11 09:19:03 +01:00
block virtio: Report real progress in VQ aio poll handler 2017-02-17 21:52:30 +02:00
bt chardev: qom-ify 2017-01-27 18:08:00 +01:00
char hw/char/mcf_uart: QOMify the ColdFire UART 2017-02-16 14:06:56 +01:00
core vmstate registration: check return values 2017-02-06 13:36:49 +01:00
cpu Introduce DEVICE_CATEGORY_CPU for CPU devices 2017-01-27 18:07:31 +01:00
cris cris: Fix broken header guard in hw/cris/boot.h 2016-07-12 16:20:46 +02:00
display migration: consolidate VMStateField.start 2017-02-13 17:27:13 +00:00
dma migration: consolidate VMStateField.start 2017-02-13 17:27:13 +00:00
gpio hw/gpio: QOM'ify mpc8xxx.c 2017-01-31 10:10:13 +11:00
i2c arm: Uniquely name imx25 I2C buses. 2017-01-20 11:15:06 +00:00
i386 kvm/ioapic: correct kvm ioapic version 2017-02-16 14:06:55 +01:00
ide ahci: advertise HOST_CAP_64 2017-02-10 11:47:11 -05:00
input -----BEGIN PGP SIGNATURE----- 2017-02-02 16:08:28 +00:00
intc apic: reset apic_delivered global variable on machine reset 2017-02-16 14:06:55 +01:00
ipack ipack: Update e-mail address 2016-05-18 15:04:27 +03:00
ipmi migration: consolidate VMStateField.start 2017-02-13 17:27:13 +00:00
isa Allow ISA bus to be configured out 2017-02-06 12:33:21 +11:00
lm32 char: rename CharDriverState Chardev 2017-01-27 18:07:59 +01:00
m68k hw/char/mcf_uart: QOMify the ColdFire UART 2017-02-16 14:06:56 +01:00
mem pc: memhp: enable nvdimm device hotplug 2016-11-01 19:21:09 +02:00
microblaze clean-up: removed duplicate #includes 2016-10-28 18:17:24 +03:00
mips char: rename CharDriverState Chardev 2017-01-27 18:07:59 +01:00
misc report guest crash information in GUEST_PANICKED event 2017-02-16 15:30:49 +01:00
moxie hw: explicitly include qemu-common.h and cpu.h 2016-03-22 22:20:17 +01:00
net net: e1000e: fix an infinite loop issue 2017-02-15 11:18:57 +08:00
nios2 nios2: Add Altera 10M50 GHRD emulation 2017-01-24 13:10:35 -08:00
nvram migration: consolidate VMStateField.start 2017-02-13 17:27:13 +00:00
openrisc target/openrisc: Rename the cpu from or32 to or1k 2017-02-14 08:14:58 +11:00
pci pci/pcie: don't assume cap id 0 is reserved 2017-02-17 21:52:30 +02:00
pci-bridge ppc patch queue 2017-02-02 2017-02-02 18:48:06 +00:00
pci-host ppc: Make uninorth interrupt swizzling identical to Grackle 2016-11-23 12:00:48 +11:00
pcmcia hw: Clean up includes 2016-01-29 15:07:25 +00:00
ppc report guest crash information in GUEST_PANICKED event 2017-02-16 15:30:49 +01:00
s390x s390x/kvm: fix small race reboot vs. cmma 2017-02-01 09:11:56 +01:00
scsi virtio: Report real progress in VQ aio poll handler 2017-02-17 21:52:30 +02:00
sd migration: consolidate VMStateField.start 2017-02-13 17:27:13 +00:00
sh4 cputlb: drop flush_global flag from tlb_flush 2017-01-13 14:24:37 +00:00
smbios stubs: move smbios stubs to hw/smbios 2017-01-16 17:52:35 +01:00
sparc fw_cfg: move FW_CFG_NB_CPUS out of fw_cfg_init1() 2016-11-16 12:09:58 -02:00
sparc64 target-sparc: fix up niagara machine 2017-01-18 22:03:44 +01:00
ssi aspeed/smc: use a modulo to check segment limits 2017-02-10 17:40:30 +00:00
timer migration: consolidate VMStateField.start 2017-02-13 17:27:13 +00:00
tpm clean-up: removed duplicate #includes 2016-10-28 18:17:24 +03:00
tricore tricore: remove useless cast 2016-09-15 15:32:22 +03:00
unicore32 clean-up: removed duplicate #includes 2016-10-28 18:17:24 +03:00
usb xhci: fix event queue IRQ handling 2017-02-06 12:12:26 +01:00
vfio hw/vfio: Add CONFIG switches for calxeda-xgmac and amd-xgbe 2017-02-10 13:12:03 -07:00
virtio virtio: Report real progress in VQ aio poll handler 2017-02-17 21:52:30 +02:00
watchdog wdt: Add Aspeed watchdog device model 2017-02-07 18:29:59 +00:00
xen Xen 2017/02/02 2017-02-03 12:31:40 +00:00
xenpv xenpv: Fix qemu_uuid compiling error 2016-09-29 11:43:17 +08:00
xtensa target/xtensa: refactor CCOUNT/CCOMPARE 2017-01-15 13:01:55 -08:00
Makefile.objs acpi: filter based on CONFIG_ACPI_X86 rather than TARGET 2017-01-16 17:52:35 +01:00