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649bccd7fa
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Like Xu 649bccd7fa KVM: x86/pmu: Rewrite reprogram_counters() to improve performance 
A valid pmc is always tested before using pmu->reprogram_pmi. Eliminate
this part of the redundancy by setting the counter's bitmask directly,
and in addition, trigger KVM_REQ_PMU only once to save more cpu cycles.

Signed-off-by: Like Xu <likexu@tencent.com>
Link: https://lore.kernel.org/r/20230214050757.9623-4-likexu@tencent.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
2023-04-06 16:04:31 -07:00
..
alpha alpha: fix lazy-FPU mis(merged/applied/whatnot) 2023-03-06 20:13:49 -05:00
arc - Daniel Verkamp has contributed a memfd series ("mm/memfd: add 2023-02-23 17:09:35 -08:00
arm ARM: SoC fixes for 6.3, part 1 2023-02-27 10:09:40 -08:00
arm64 KVM: Change return type of kvm_arch_vm_ioctl() to "int" 2023-03-16 10:18:07 -04:00
csky rch/csky patches for 6.3 2023-02-27 09:27:31 -08:00
hexagon VM_FAULT_RETRY fixes 2023-03-05 11:07:58 -08:00
ia64 cpumask: re-introduce constant-sized cpumask optimizations 2023-03-05 14:30:34 -08:00
loongarch LoongArch changes for v6.3 2023-03-01 09:27:00 -08:00
m68k m68k: Only force 030 bus error if PC not in exception table 2023-03-06 14:09:42 +01:00
microblaze VM_FAULT_RETRY fixes 2023-03-05 11:07:58 -08:00
mips KVM: Change return type of kvm_arch_vm_ioctl() to "int" 2023-03-16 10:18:07 -04:00
nios2 VM_FAULT_RETRY fixes 2023-03-05 11:07:58 -08:00
openrisc VM_FAULT_RETRY fixes 2023-03-05 11:07:58 -08:00
parisc VM_FAULT_RETRY fixes 2023-03-05 11:07:58 -08:00
powerpc KVM: Change return type of kvm_arch_vm_ioctl() to "int" 2023-03-16 10:18:07 -04:00
riscv KVM: Change return type of kvm_arch_vm_ioctl() to "int" 2023-03-16 10:18:07 -04:00
s390 KVM: Change return type of kvm_arch_vm_ioctl() to "int" 2023-03-16 10:18:07 -04:00
sh sh: sanitize the flags on sigreturn 2023-03-09 10:01:59 -08:00
sparc VM_FAULT_RETRY fixes 2023-03-05 11:07:58 -08:00
um This pull request contains the following changes for UML: 2023-03-01 09:13:00 -08:00
x86 KVM: x86/pmu: Rewrite reprogram_counters() to improve performance 2023-04-06 16:04:31 -07:00
xtensa - Daniel Verkamp has contributed a memfd series ("mm/memfd: add 2023-02-23 17:09:35 -08:00
.gitignore
Kconfig arch/Kconfig: fix indentation 2023-02-09 17:03:20 -08:00