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linux/arch/x86/kvm
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Sean Christopherson 5f4d3810ca KVM: x86: Account fastpath-only VM-Exits in vCPU stats 
commit 8b703a49c9 upstream.

Increment vcpu->stat.exits when handling a fastpath VM-Exit without
going through any part of the "slow" path.  Not bumping the exits stat
can result in wildly misleading exit counts, e.g. if the primary reason
the guest is exiting is to program the TSC deadline timer.

Fixes: 404d5d7bff ("KVM: X86: Introduce more exit_fastpath_completion enum values")
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20230602011920.787844-2-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2023-06-09 10:34:27 +02:00
..
mmu KVM: x86/mmu: Refresh CR0.WP prior to checking for emulated permission faults 2023-05-17 11:53:30 +02:00
svm KVM: x86: Track supported PERF_CAPABILITIES in kvm_caps 2023-05-17 11:53:27 +02:00
vmx KVM: VMX: Make CR0.WP a guest owned bit 2023-05-17 11:53:29 +02:00
.gitignore KVM: x86: use a separate asm-offsets.c file 2022-11-09 12:10:17 -05:00
cpuid.c KVM: x86: Do not return host topology information from KVM_GET_SUPPORTED_CPUID 2023-01-18 11:58:10 +01:00
cpuid.h KVM: x86: Add dedicated helper to get CPUID entry with significant index 2022-07-14 11:38:32 -04:00
debugfs.c KVM: x86: Reduce refcount if single_open() fails in kvm_mmu_rmaps_stat_open() 2022-10-27 04:41:54 -04:00
emulate.c KVM: x86: smm: number of GPRs in the SMRAM image depends on the image format 2022-10-28 06:10:30 -04:00
fpu.h KVM: x86: Move FPU register accessors into fpu.h 2021-06-17 13:09:24 -04:00
hyperv.c KVM: nVMX: Support PERF_GLOBAL_CTRL with enlightened VMCS 2022-09-26 12:02:47 -04:00
hyperv.h KVM: x86: Report error when setting CPUID if Hyper-V allocation fails 2022-09-26 12:02:39 -04:00
i8254.c KVM: x86: PIT: Preserve state of speaker port data bit 2022-06-08 13:06:20 -04:00
i8254.h KVM: x86: PIT: Preserve state of speaker port data bit 2022-06-08 13:06:20 -04:00
i8259.c KVM: x86/i8259: Remove a dead store of irq in a conditional block 2022-04-02 05:41:19 -04:00
ioapic.c KVM: x86/ioapic: Remove unused "addr" and "length" of ioapic_read_indirect() 2022-02-10 13:47:13 -05:00
ioapic.h x86/kvm: remove unused ack_notifier callbacks 2021-11-18 07:05:57 -05:00
irq.c KVM: x86/xen: handle PV timers oneshot mode 2022-04-02 05:41:16 -04:00
irq.h x86/kvm: remove unused ack_notifier callbacks 2021-11-18 07:05:57 -05:00
irq_comm.c KVM: x86/xen: Make kvm_xen_set_evtchn() reusable from other places 2022-04-02 05:41:14 -04:00
Kconfig KVM: x86: Select CONFIG_HAVE_KVM_DIRTY_RING_ACQ_REL 2022-09-29 10:23:08 +01:00
kvm-asm-offsets.c KVM: SVM: move MSR_IA32_SPEC_CTRL save/restore to assembly 2022-11-09 12:25:53 -05:00
kvm_cache_regs.h KVM: VMX: Make CR0.WP a guest owned bit 2023-05-17 11:53:29 +02:00
kvm_emulate.h KVM: x86: Bug the VM if the emulator accesses a non-existent GPR 2022-06-10 10:01:33 -04:00
kvm_onhyperv.c KVM: x86: Uninline and export hv_track_root_tdp() 2022-02-10 13:47:19 -05:00
kvm_onhyperv.h KVM: SVM: Flush Hyper-V TLB when required 2023-04-20 12:35:12 +02:00
lapic.c KVM: x86: Inject #GP on x2APIC WRMSR that sets reserved bits 63:32 2023-03-10 09:34:12 +01:00
lapic.h KVM: x86: Rename kvm_apic_has_events() to make it INIT/SIPI specific 2022-09-26 12:37:18 -04:00
Makefile KVM: SVM: replace regs argument of __svm_vcpu_run() with vcpu_svm 2022-11-09 12:16:34 -05:00
mmu.h KVM: x86/mmu: Refresh CR0.WP prior to checking for emulated permission faults 2023-05-17 11:53:30 +02:00
mtrr.c KVM: x86: Add helper to consolidate "raw" reserved GPA mask calculations 2021-02-04 09:27:30 -05:00
pmu.c KVM: x86: Make use of kvm_read_cr*_bits() when testing bits 2023-05-17 11:53:29 +02:00
pmu.h KVM: x86/pmu: Disable vPMU support on hybrid CPUs (host PMUs) 2023-02-22 12:59:55 +01:00
reverse_cpuid.h KVM: SEV: Mask CPUID[0x8000001F].eax according to supported features 2021-04-26 05:27:15 -04:00
trace.h KVM: x86: Print guest pgd in kvm_nested_vmenter() 2022-09-26 12:02:33 -04:00
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: Account fastpath-only VM-Exits in vCPU stats 2023-06-09 10:34:27 +02:00
x86.h KVM: x86: Track supported PERF_CAPABILITIES in kvm_caps 2023-05-17 11:53:27 +02:00
xen.c KVM: x86: fix deadlock for KVM_XEN_EVTCHN_RESET 2023-02-25 11:25:40 +01:00
xen.h KVM: x86: do not set st->preempted when going back to user space 2022-06-08 04:21:06 -04:00