Huaitong Han a9403bfcd9 vhost: Don't set vring call if guest notifier is unused ... The vring call fd is set even when the guest does not use MSI-X (e.g., in the case of virtio PMD), leading to unnecessary CPU overhead for processing interrupts. The commit 96a3d98d2c("vhost: don't set vring call if no vector") optimized the case where MSI-X is enabled but the queue vector is unset. However, there's an additional case where the guest uses INTx and the INTx_DISABLED bit in the PCI config is set, meaning that no interrupt notifier will actually be used. In such cases, the vring call fd should also be cleared to avoid redundant interrupt handling. Fixes: 96a3d98d2c("vhost: don't set vring call if no vector") Reported-by: Zhiyuan Yuan <yuanzhiyuan@chinatelecom.cn> Signed-off-by: Jidong Xia <xiajd@chinatelecom.cn> Signed-off-by: Huaitong Han <hanht2@chinatelecom.cn> Message-Id: <20250522100548.212740-1-hanht2@chinatelecom.cn> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>		2025-06-02 14:29:15 -04:00
..
acpi	hw/acpi/pcihp: Fix typo in function name	2025-05-09 23:49:26 +03:00
adc	hw/adc: Remove MAX111X device	2024-10-15 15:16:17 +01:00
arm	hw/arm: Replace TABs for spaces in OMAP board and device code	2025-05-14 14:29:47 +01:00
audio	virtio-snd: rewrite invalid tx/rx message handling	2024-04-09 02:31:16 -04:00
block	hw/block: Remove ecc	2024-10-15 15:16:17 +01:00
char	include/system: Move exec/ioport.h to system/ioport.h	2025-04-23 14:08:21 -07:00
core	target/migration: Inline VMSTATE_CPU()	2025-05-08 14:22:12 +02:00
cpu	Use OBJECT_DECLARE_SIMPLE_TYPE when possible	2020-09-18 14:12:32 -04:00
cxl	hw/cxl/cxl-mailbox-utils: CXL CCI Get/Set alert config commands	2025-05-14 05:39:14 -04:00
display	include/system: Move exec/memory.h to system/memory.h	2025-04-23 14:08:21 -07:00
dma	include/hw/dma/xlnx_dpdma: Remove dependency on console.h	2025-05-14 11:50:42 +02:00
firmware	hw/smbios: Remove 'uuid_encoded' argument from smbios_set_defaults()	2024-06-19 12:40:49 +02:00
fsi	include/system: Move exec/memory.h to system/memory.h	2025-04-23 14:08:21 -07:00
gpio	include/system: Move exec/memory.h to system/memory.h	2025-04-23 14:08:21 -07:00
hyperv	hw/hyperv/hyperv.h: header cleanup	2025-05-08 14:22:12 +02:00
i2c	include/system: Move exec/memory.h to system/memory.h	2025-04-23 14:08:21 -07:00
i386	qom: Have class_init() take a const data argument	2025-04-25 17:00:41 +02:00
ide	include/system: Move exec/ioport.h to system/ioport.h	2025-04-23 14:08:21 -07:00
input	hw/input: Remove lm832x device	2024-10-01 14:41:10 +01:00
intc	hw/intc/loongarch_pch: Merge three memory region into one	2025-05-14 15:56:28 +08:00
ipack	hw/ipack: Remove legacy qemu_allocate_irqs() use	2025-01-31 19:36:44 +01:00
ipmi	include/system: Move exec/memory.h to system/memory.h	2025-04-23 14:08:21 -07:00
isa	include/system: Move exec/ioport.h to system/ioport.h	2025-04-23 14:08:21 -07:00
loongarch	hw/loongarch/virt: Update the ACPI table for hotplug cpu	2025-03-05 09:39:18 +08:00
m68k	include/system: Move exec/memory.h to system/memory.h	2025-04-23 14:08:21 -07:00
mem	include/system: Move exec/memory.h to system/memory.h	2025-04-23 14:08:21 -07:00
mips	include/system: Move exec/memory.h to system/memory.h	2025-04-23 14:08:21 -07:00
misc	hw/misc/aspeed_hace: Support DMA 64 bits dram address	2025-05-25 23:39:11 +02:00
net	include/system: Move exec/memory.h to system/memory.h	2025-04-23 14:08:21 -07:00
nubus	include/system: Move exec/address-spaces.h to system/address-spaces.h	2025-04-23 14:08:21 -07:00
nvram	include/system: Move exec/memory.h to system/memory.h	2025-04-23 14:08:21 -07:00
openrisc	hw/openrisc: Support monitor dumpdtb command	2025-02-24 15:03:42 +00:00
pci	vhost: Don't set vring call if guest notifier is unused	2025-06-02 14:29:15 -04:00
pci-bridge	hw/pci-bridge/cxl-upstream: Add properties to control link speed and width	2024-11-04 16:03:24 -05:00
pci-host	hw/pci-host: Remove unused pci_host_data_be_ops	2025-05-20 08:04:18 +02:00
ppc	include/system: Move exec/address-spaces.h to system/address-spaces.h	2025-04-23 14:08:21 -07:00
remote	include/system: Move exec/memory.h to system/memory.h	2025-04-23 14:08:21 -07:00
riscv	hw/riscv: Configurable MPFS CLINT timebase freq	2025-05-19 13:30:24 +10:00
rtc	hw/i386: move rtc-reset-reinjection command out of hw/rtc	2024-05-10 15:45:15 +02:00
rx	hw/rx/rx62n: Only call qdev_get_gpio_in() when necessary	2024-02-15 16:58:46 +01:00
s390x	qapi: make s390x specific CPU commands unconditionally available	2025-05-28 18:56:08 +02:00
scsi	scsi: introduce requests_lock	2025-03-13 17:57:23 +01:00
sd	hw/sd/sdhci: Remove need for SDHCI_VENDOR_IMX definition	2025-03-12 11:11:42 +01:00
sensor	hw/sensor: Add IC_DEVICE_ID to ISL voltage regulators	2022-07-14 16:24:38 +02:00
sh4	include/system: Move exec/memory.h to system/memory.h	2025-04-23 14:08:21 -07:00
southbridge	include/system: Move exec/memory.h to system/memory.h	2025-04-23 14:08:21 -07:00
sparc	hw/sparc/grlib: split out the headers for each peripherals	2024-02-15 16:58:46 +01:00
ssi	hw/ssi/pnv_spi: Put a limit to RDR match failures	2025-03-11 22:43:31 +10:00
timer	include/system: Move exec/memory.h to system/memory.h	2025-04-23 14:08:21 -07:00
tricore	include/system: Move exec/address-spaces.h to system/address-spaces.h	2025-04-23 14:08:21 -07:00
uefi	hw/uefi: add include/hw/uefi/var-service.h	2025-03-04 12:01:42 +01:00
usb	hw/usb/hcd-dwc3: Align global registers size with Linux	2025-02-25 15:32:58 +00:00
vfio	vfio/container: pass listener_begin/commit callbacks	2025-05-09 12:42:28 +02:00
virtio	vhost-user: return failure if backend crash when live migration	2025-05-14 05:39:15 -04:00
vmapple	hw/vmapple/virtio-blk: Add support for apple virtio-blk	2025-03-04 14:45:34 +01:00
watchdog	aspeed/wdt: Add AST2700 support	2024-06-16 21:08:54 +02:00
xen	include/hw/xen/interface/io/blkif.h: fix "the the" typo in comment	2025-05-09 23:49:26 +03:00
xtensa	include/system: Move exec/memory.h to system/memory.h	2025-04-23 14:08:21 -07:00
boards.h	include/hw/boards: add warning about changing deprecation logic	2025-05-08 17:11:16 +01:00
clock.h	clock: clear callback on unparent	2024-12-10 18:49:24 +01:00
elf_ops.h.inc	hw/elf_ops: Rename elf_ops.h -> elf_ops.h.inc	2024-04-25 12:48:12 +02:00
fw-path-provider.h	Use DECLARE_*CHECKER* macros	2020-09-09 09:27:09 -04:00
hotplug.h	pci: fix 'hotplugglable' property behavior	2023-03-07 12:38:59 -05:00
hw.h	meson: Only allow CONFIG_USER_ONLY from certain source sets	2025-04-23 14:08:44 -07:00
irq.h	hw/irq: Introduce qemu_init_irqs() helper	2025-01-31 19:36:44 +01:00
loader-fit.h	hw/mips/boston: Support dumpdtb monitor commands	2025-02-24 15:03:42 +00:00
loader.h	load_aout: replace bswap_needed with big_endian	2025-03-21 12:51:16 +01:00
nmi.h	Use DECLARE_*CHECKER* macros	2020-09-09 09:27:09 -04:00
or-irq.h	hw: Replace qemu_or_irq typedef by OrIRQState	2023-02-27 13:27:05 +00:00
platform-bus.h	nomaintainer: Fix Lesser GPL version number	2020-11-15 17:04:40 +01:00
ptimer.h	ptimer: Rename PTIMER_POLICY_DEFAULT to PTIMER_POLICY_LEGACY	2022-05-19 16:19:03 +01:00
qdev-clock.h	clock: Add ClockEvent parameter to callbacks	2021-03-08 17:20:01 +00:00
qdev-core.h	hw/qdev: Factor qdev_hotunplug_allowed() out	2025-01-13 17:16:03 +01:00
qdev-dma.h	Supply missing header guards	2019-06-12 13:20:21 +02:00
qdev-properties-system.h	hw/vmapple/virtio-blk: Add support for apple virtio-blk	2025-03-04 14:45:34 +01:00
qdev-properties.h	qdev, rust/hpet: fix type of HPET "timers" property	2025-03-20 12:14:45 +01:00
register.h	include/system: Move exec/memory.h to system/memory.h	2025-04-23 14:08:21 -07:00
registerfields.h	hw/registerfields: Add shared fields macros	2022-06-22 09:49:34 +02:00
resettable.h	reset: Add RESET_TYPE_WAKEUP	2024-09-24 11:33:35 +02:00
stream.h	hw/core/stream: Rename StreamSlave as StreamSink	2020-12-10 12:15:04 -05:00
sysbus.h	include/system: Move exec/memory.h to system/memory.h	2025-04-23 14:08:21 -07:00
usb.h	include/system: Move exec/memory.h to system/memory.h	2025-04-23 14:08:21 -07:00
vmstate-if.h	Use DECLARE_*CHECKER* macros	2020-09-09 09:27:09 -04:00