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| author | Maxim Levitsky <mlevitsk@redhat.com> | 2022-03-22 19:24:46 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2022-04-02 05:37:25 -0400 |
| commit | bb2aa78e9a90769993d8cefd9920f81355853a98 (patch) | |
| tree | a632e367552bd753239cb2be84e45510463c54f0 | |
| parent | 0dacc3df898e219fa774f39e5e10d686364e0a27 (diff) | |
| download | linux-bb2aa78e9a90769993d8cefd9920f81355853a98.tar.bz2 | |
KVM: x86: SVM: move tsc ratio definitions to svm.h
Another piece of SVM spec which should be in the header file
Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20220322172449.235575-6-mlevitsk@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
| -rw-r--r-- | arch/x86/include/asm/svm.h | 6 | ||||
| -rw-r--r-- | arch/x86/kvm/svm/svm.c | 15 |
2 files changed, 11 insertions, 10 deletions
diff --git a/arch/x86/include/asm/svm.h b/arch/x86/include/asm/svm.h index ab572d8def2b..f70a5108d464 100644 --- a/arch/x86/include/asm/svm.h +++ b/arch/x86/include/asm/svm.h @@ -221,6 +221,12 @@ struct __attribute__ ((__packed__)) vmcb_control_area { #define SVM_NESTED_CTL_SEV_ES_ENABLE BIT(2) +#define SVM_TSC_RATIO_RSVD 0xffffff0000000000ULL +#define SVM_TSC_RATIO_MIN 0x0000000000000001ULL +#define SVM_TSC_RATIO_MAX 0x000000ffffffffffULL +#define SVM_TSC_RATIO_DEFAULT 0x0100000000ULL + + /* AVIC */ #define AVIC_LOGICAL_ID_ENTRY_GUEST_PHYSICAL_ID_MASK (0xFFULL) #define AVIC_LOGICAL_ID_ENTRY_VALID_BIT 31 diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c index e42586aff5c4..3b8d82a9832c 100644 --- a/arch/x86/kvm/svm/svm.c +++ b/arch/x86/kvm/svm/svm.c @@ -72,10 +72,6 @@ MODULE_DEVICE_TABLE(x86cpu, svm_cpu_id); #define DEBUGCTL_RESERVED_BITS (~(0x3fULL)) -#define TSC_RATIO_RSVD 0xffffff0000000000ULL -#define TSC_RATIO_MIN 0x0000000000000001ULL -#define TSC_RATIO_MAX 0x000000ffffffffffULL - static bool erratum_383_found __read_mostly; u32 msrpm_offsets[MSRPM_OFFSETS] __read_mostly; @@ -87,7 +83,6 @@ u32 msrpm_offsets[MSRPM_OFFSETS] __read_mostly; static uint64_t osvw_len = 4, osvw_status; static DEFINE_PER_CPU(u64, current_tsc_ratio); -#define TSC_RATIO_DEFAULT 0x0100000000ULL static const struct svm_direct_access_msrs { u32 index; /* Index of the MSR */ @@ -480,7 +475,7 @@ static void svm_hardware_disable(void) { /* Make sure we clean up behind us */ if (tsc_scaling) - wrmsrl(MSR_AMD64_TSC_RATIO, TSC_RATIO_DEFAULT); + wrmsrl(MSR_AMD64_TSC_RATIO, SVM_TSC_RATIO_DEFAULT); cpu_svm_disable(); @@ -526,8 +521,8 @@ static int svm_hardware_enable(void) * Set the default value, even if we don't use TSC scaling * to avoid having stale value in the msr */ - wrmsrl(MSR_AMD64_TSC_RATIO, TSC_RATIO_DEFAULT); - __this_cpu_write(current_tsc_ratio, TSC_RATIO_DEFAULT); + wrmsrl(MSR_AMD64_TSC_RATIO, SVM_TSC_RATIO_DEFAULT); + __this_cpu_write(current_tsc_ratio, SVM_TSC_RATIO_DEFAULT); } @@ -2723,7 +2718,7 @@ static int svm_set_msr(struct kvm_vcpu *vcpu, struct msr_data *msr) break; } - if (data & TSC_RATIO_RSVD) + if (data & SVM_TSC_RATIO_RSVD) return 1; svm->tsc_ratio_msr = data; @@ -4765,7 +4760,7 @@ static __init int svm_hardware_setup(void) } else { pr_info("TSC scaling supported\n"); kvm_has_tsc_control = true; - kvm_max_tsc_scaling_ratio = TSC_RATIO_MAX; + kvm_max_tsc_scaling_ratio = SVM_TSC_RATIO_MAX; kvm_tsc_scaling_ratio_frac_bits = 32; } } |