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| author | Jason Gunthorpe <jgg@nvidia.com> | 2022-12-09 15:52:17 -0400 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2022-12-09 15:52:17 -0400 |
| commit | d69e8c63fcbbf695ff7ff2c6d26efead23cfbb3a (patch) | |
| tree | 4d714ecd331233069ab718989bb017dfd934e129 /arch/x86/kvm/vmx/capabilities.h | |
| parent | 6cfe7bd0dfd33033683639039b5608d6534c19eb (diff) | |
| parent | 76dcd734eca23168cb008912c0f69ff408905235 (diff) | |
| download | linux-d69e8c63fcbbf695ff7ff2c6d26efead23cfbb3a.tar.gz linux-d69e8c63fcbbf695ff7ff2c6d26efead23cfbb3a.tar.bz2 linux-d69e8c63fcbbf695ff7ff2c6d26efead23cfbb3a.zip | |
Merge tag 'v6.1-rc8' into rdma.git for-next
For dependencies in following patches
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'arch/x86/kvm/vmx/capabilities.h')
| -rw-r--r-- | arch/x86/kvm/vmx/capabilities.h | 19 |
1 files changed, 3 insertions, 16 deletions
diff --git a/arch/x86/kvm/vmx/capabilities.h b/arch/x86/kvm/vmx/capabilities.h index 87c4e46daf37..07254314f3dd 100644 --- a/arch/x86/kvm/vmx/capabilities.h +++ b/arch/x86/kvm/vmx/capabilities.h @@ -24,8 +24,6 @@ extern int __read_mostly pt_mode; #define PMU_CAP_FW_WRITES (1ULL << 13) #define PMU_CAP_LBR_FMT 0x3f -#define DEBUGCTLMSR_LBR_MASK (DEBUGCTLMSR_LBR | DEBUGCTLMSR_FREEZE_LBRS_ON_PMI) - struct nested_vmx_msrs { /* * We only store the "true" versions of the VMX capability MSRs. We @@ -400,6 +398,7 @@ static inline bool vmx_pebs_supported(void) static inline u64 vmx_get_perf_capabilities(void) { u64 perf_cap = PMU_CAP_FW_WRITES; + struct x86_pmu_lbr lbr; u64 host_perf_cap = 0; if (!enable_pmu) @@ -408,7 +407,8 @@ static inline u64 vmx_get_perf_capabilities(void) if (boot_cpu_has(X86_FEATURE_PDCM)) rdmsrl(MSR_IA32_PERF_CAPABILITIES, host_perf_cap); - perf_cap |= host_perf_cap & PMU_CAP_LBR_FMT; + if (x86_perf_get_lbr(&lbr) >= 0 && lbr.nr) + perf_cap |= host_perf_cap & PMU_CAP_LBR_FMT; if (vmx_pebs_supported()) { perf_cap |= host_perf_cap & PERF_CAP_PEBS_MASK; @@ -419,19 +419,6 @@ static inline u64 vmx_get_perf_capabilities(void) return perf_cap; } -static inline u64 vmx_supported_debugctl(void) -{ - u64 debugctl = 0; - - if (boot_cpu_has(X86_FEATURE_BUS_LOCK_DETECT)) - debugctl |= DEBUGCTLMSR_BUS_LOCK_DETECT; - - if (vmx_get_perf_capabilities() & PMU_CAP_LBR_FMT) - debugctl |= DEBUGCTLMSR_LBR_MASK; - - return debugctl; -} - static inline bool cpu_has_notify_vmexit(void) { return vmcs_config.cpu_based_2nd_exec_ctrl & |