Wanpeng Li e1be9ac8e6 KVM: X86: Narrow down the IPI fastpath to single target IPI ... The original single target IPI fastpath patch forgot to filter the ICR destination shorthand field. Multicast IPI is not suitable for this feature since wakeup the multiple sleeping vCPUs will extend the interrupt disabled time, it especially worse in the over-subscribe and VM has a little bit more vCPUs scenario. Let's narrow it down to single target IPI. Two VMs, each is 76 vCPUs, one running 'ebizzy -M', the other running cyclictest on all vCPUs, w/ this patch, the avg score of cyclictest can improve more than 5%. (pv tlb, pv ipi, pv sched yield are disabled during testing to avoid the disturb). Signed-off-by: Wanpeng Li <wanpengli@tencent.com> Message-Id: <1585189202-1708-3-git-send-email-wanpengli@tencent.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>		2020-03-26 05:44:21 -04:00
..
mmu	KVM: x86/mmu: Fix struct guest_walker arrays for 5-level paging	2020-02-12 20:09:44 +01:00
vmx	KVM: VMX: don't allow memory operands for inline asm that modifies SP	2020-03-23 15:40:51 -04:00
cpuid.c	kvm/svm: PKU not currently supported	2020-01-27 19:59:35 +01:00
cpuid.h	KVM: x86: Refactor and rename bit() to feature_bit() macro	2020-01-21 14:45:28 +01:00
debugfs.c	KVM: no need to check return value of debugfs_create functions	2019-08-05 12:55:49 +02:00
emulate.c	KVM: x86: clear stale x86_emulate_ctxt->intercept value	2020-03-03 17:38:16 +01:00
hyperv.c	kvm: x86: hyperv: Use APICv update request interface	2020-02-05 15:17:43 +01:00
hyperv.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 499	2019-06-19 17:09:53 +02:00
i8254.c	kvm: i8254: Deactivate APICv when using in-kernel PIT re-injection mode.	2020-02-05 15:17:44 +01:00
i8254.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
i8259.c	KVM: x86: Refactor picdev_write() to prevent Spectre-v1/L1TF attacks	2020-01-27 19:59:37 +01:00
ioapic.c	KVM: x86: Initializing all kvm_lapic_irq fields in ioapic_write_indirect	2020-03-14 10:46:01 +01:00
ioapic.h	KVM: X86: Move irrelevant declarations out of ioapic.h	2020-01-08 17:33:14 +01:00
irq_comm.c	KVM: x86: don't notify userspace IOAPIC on edge-triggered interrupt EOI	2020-02-21 18:04:57 +01:00
irq.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 320	2019-06-05 17:37:05 +02:00
irq.h	KVM: X86: Move irrelevant declarations out of ioapic.h	2020-01-08 17:33:14 +01:00
Kconfig	KVM: fix Kconfig menu text for -Werror	2020-03-05 15:27:43 +01:00
kvm_cache_regs.h	KVM: x86: Fold decache_cr3() into cache_reg()	2019-10-22 13:34:16 +02:00
lapic.c	KVM: LAPIC: Also cancel preemption timer when disarm LAPIC timer	2020-03-24 07:25:20 -04:00
lapic.h	kvm: lapic: Introduce APICv update helper function	2020-02-05 15:17:40 +01:00
Makefile	KVM: allow disabling -Werror	2020-02-28 10:45:28 +01:00
mmu_audit.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 499	2019-06-19 17:09:53 +02:00
mmu.h	KVM: x86/mmu: Avoid retpoline on ->page_fault() with TDP	2020-02-12 20:09:42 +01:00
mmutrace.h	KVM: x86: fix incorrect comparison in trace event	2020-02-20 18:13:44 +01:00
mtrr.c	KVM: x86: Protect MSR-based index computations in fixed_msr_to_seg_unit() from Spectre-v1/L1TF attacks	2020-01-27 19:59:39 +01:00
pmu_amd.c	KVM: x86/vPMU: Add lazy mechanism to release perf_event per vPMC	2019-11-15 11:44:10 +01:00
pmu.c	Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2019-11-26 15:42:43 -08:00
pmu.h	KVM: x86: Protect MSR-based index computations in pmu.h from Spectre-v1/L1TF attacks	2020-01-27 19:59:40 +01:00
svm.c	KVM: SVM: Issue WBINVD after deactivating an SEV guest	2020-03-23 09:01:04 -04:00
trace.h	kvm: x86: Add APICv (de)activate request trace points	2020-02-05 15:17:41 +01:00
tss.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
x86.c	KVM: X86: Narrow down the IPI fastpath to single target IPI	2020-03-26 05:44:21 -04:00
x86.h	KVM: x86: Take a u64 when checking for a valid dr7 value	2020-02-05 15:17:45 +01:00