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Li RongQing 9ee83635d8 KVM: x86: Yield to IPI target vCPU only if it is busy 
When sending a call-function IPI-many to vCPUs, yield to the
IPI target vCPU which is marked as preempted.

but when emulating HLT, an idling vCPU will be voluntarily
scheduled out and mark as preempted from the guest kernel
perspective. yielding to idle vCPU is pointless and increase
unnecessary vmexit, maybe miss the true preempted vCPU

so yield to IPI target vCPU only if vCPU is busy and preempted

Signed-off-by: Li RongQing <lirongqing@baidu.com>
Message-Id: <1644380201-29423-1-git-send-email-lirongqing@baidu.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-02-25 10:09:35 -05:00
..
alpha bitmap patches for 5.17-rc1 2022-01-23 06:20:44 +02:00
arc bitmap patches for 5.17-rc1 2022-01-23 06:20:44 +02:00
arm lib/crypto: blake2s: avoid indirect calls to compression function for Clang CFI 2022-02-04 19:22:32 +01:00
arm64 KVM/arm64 fixes for 5.17, take #4 2022-02-25 09:49:30 -05:00
csky bitmap patches for 5.17-rc1 2022-01-23 06:20:44 +02:00
h8300 bitmap patches for 5.17-rc1 2022-01-23 06:20:44 +02:00
hexagon bitmap patches for 5.17-rc1 2022-01-23 06:20:44 +02:00
ia64 ia64: make IA64_MCA_RECOVERY bool instead of tristate 2022-01-30 09:56:58 +02:00
m68k bitmap patches for 5.17-rc1 2022-01-23 06:20:44 +02:00
microblaze Kbuild updates for v5.17 2022-01-19 11:15:19 +02:00
mips ARM: 2022-02-05 09:55:59 -08:00
nds32 Kbuild updates for v5.17 2022-01-19 11:15:19 +02:00
nios2 Kbuild updates for v5.17 2022-01-19 11:15:19 +02:00
openrisc bitmap patches for 5.17-rc1 2022-01-23 06:20:44 +02:00
parisc bitmap patches for 5.17-rc1 2022-01-23 06:20:44 +02:00
powerpc powerpc/64s/interrupt: Fix decrementer storm 2022-01-25 16:50:10 +11:00
riscv KVM/arm64 fixes for 5.17, take #2 2022-02-05 00:58:25 -05:00
s390 s390/hypfs: include z/VM guests with access control group set 2022-01-26 18:42:39 +01:00
sh bitmap patches for 5.17-rc1 2022-01-23 06:20:44 +02:00
sparc bitmap patches for 5.17-rc1 2022-01-23 06:20:44 +02:00
um
x86 KVM: x86: Yield to IPI target vCPU only if it is busy 2022-02-25 10:09:35 -05:00
xtensa bitmap patches for 5.17-rc1 2022-01-23 06:20:44 +02:00
.gitignore
Kconfig Merge branch 'akpm' (patches from Andrew) 2022-01-20 10:41:01 +02:00