Commit 98ff80f5 authored by Like Xu's avatar Like Xu Committed by Paolo Bonzini

KVM: x86/vPMU: Rename pmu_ops callbacks from msr_idx to rdpmc_ecx

The leagcy pmu_ops->msr_idx_to_pmc is only called in kvm_pmu_rdpmc, so
this function actually receives the contents of ECX before RDPMC, and
translates it to a kvm_pmc. Let's clarify its semantic by renaming the
existing msr_idx_to_pmc to rdpmc_ecx_to_pmc, and is_valid_msr_idx to
is_valid_rdpmc_ecx; likewise for the wrapper kvm_pmu_is_valid_msr_idx.
Suggested-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
Reviewed-by: default avatarJim Mattson <jmattson@google.com>
Signed-off-by: default avatarLike Xu <like.xu@linux.intel.com>
Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
parent 52ba4b0b
...@@ -266,9 +266,9 @@ void kvm_pmu_handle_event(struct kvm_vcpu *vcpu) ...@@ -266,9 +266,9 @@ void kvm_pmu_handle_event(struct kvm_vcpu *vcpu)
} }
/* check if idx is a valid index to access PMU */ /* check if idx is a valid index to access PMU */
int kvm_pmu_is_valid_msr_idx(struct kvm_vcpu *vcpu, unsigned idx) int kvm_pmu_is_valid_rdpmc_ecx(struct kvm_vcpu *vcpu, unsigned int idx)
{ {
return kvm_x86_ops->pmu_ops->is_valid_msr_idx(vcpu, idx); return kvm_x86_ops->pmu_ops->is_valid_rdpmc_ecx(vcpu, idx);
} }
bool is_vmware_backdoor_pmc(u32 pmc_idx) bool is_vmware_backdoor_pmc(u32 pmc_idx)
...@@ -318,7 +318,7 @@ int kvm_pmu_rdpmc(struct kvm_vcpu *vcpu, unsigned idx, u64 *data) ...@@ -318,7 +318,7 @@ int kvm_pmu_rdpmc(struct kvm_vcpu *vcpu, unsigned idx, u64 *data)
if (is_vmware_backdoor_pmc(idx)) if (is_vmware_backdoor_pmc(idx))
return kvm_pmu_rdpmc_vmware(vcpu, idx, data); return kvm_pmu_rdpmc_vmware(vcpu, idx, data);
pmc = kvm_x86_ops->pmu_ops->msr_idx_to_pmc(vcpu, idx, &mask); pmc = kvm_x86_ops->pmu_ops->rdpmc_ecx_to_pmc(vcpu, idx, &mask);
if (!pmc) if (!pmc)
return 1; return 1;
......
...@@ -25,9 +25,9 @@ struct kvm_pmu_ops { ...@@ -25,9 +25,9 @@ struct kvm_pmu_ops {
unsigned (*find_fixed_event)(int idx); unsigned (*find_fixed_event)(int idx);
bool (*pmc_is_enabled)(struct kvm_pmc *pmc); bool (*pmc_is_enabled)(struct kvm_pmc *pmc);
struct kvm_pmc *(*pmc_idx_to_pmc)(struct kvm_pmu *pmu, int pmc_idx); struct kvm_pmc *(*pmc_idx_to_pmc)(struct kvm_pmu *pmu, int pmc_idx);
struct kvm_pmc *(*msr_idx_to_pmc)(struct kvm_vcpu *vcpu, unsigned idx, struct kvm_pmc *(*rdpmc_ecx_to_pmc)(struct kvm_vcpu *vcpu,
u64 *mask); unsigned int idx, u64 *mask);
int (*is_valid_msr_idx)(struct kvm_vcpu *vcpu, unsigned idx); int (*is_valid_rdpmc_ecx)(struct kvm_vcpu *vcpu, unsigned int idx);
bool (*is_valid_msr)(struct kvm_vcpu *vcpu, u32 msr); bool (*is_valid_msr)(struct kvm_vcpu *vcpu, u32 msr);
int (*get_msr)(struct kvm_vcpu *vcpu, u32 msr, u64 *data); int (*get_msr)(struct kvm_vcpu *vcpu, u32 msr, u64 *data);
int (*set_msr)(struct kvm_vcpu *vcpu, struct msr_data *msr_info); int (*set_msr)(struct kvm_vcpu *vcpu, struct msr_data *msr_info);
...@@ -110,7 +110,7 @@ void reprogram_counter(struct kvm_pmu *pmu, int pmc_idx); ...@@ -110,7 +110,7 @@ void reprogram_counter(struct kvm_pmu *pmu, int pmc_idx);
void kvm_pmu_deliver_pmi(struct kvm_vcpu *vcpu); void kvm_pmu_deliver_pmi(struct kvm_vcpu *vcpu);
void kvm_pmu_handle_event(struct kvm_vcpu *vcpu); void kvm_pmu_handle_event(struct kvm_vcpu *vcpu);
int kvm_pmu_rdpmc(struct kvm_vcpu *vcpu, unsigned pmc, u64 *data); int kvm_pmu_rdpmc(struct kvm_vcpu *vcpu, unsigned pmc, u64 *data);
int kvm_pmu_is_valid_msr_idx(struct kvm_vcpu *vcpu, unsigned idx); int kvm_pmu_is_valid_rdpmc_ecx(struct kvm_vcpu *vcpu, unsigned int idx);
bool kvm_pmu_is_valid_msr(struct kvm_vcpu *vcpu, u32 msr); bool kvm_pmu_is_valid_msr(struct kvm_vcpu *vcpu, u32 msr);
int kvm_pmu_get_msr(struct kvm_vcpu *vcpu, u32 msr, u64 *data); int kvm_pmu_get_msr(struct kvm_vcpu *vcpu, u32 msr, u64 *data);
int kvm_pmu_set_msr(struct kvm_vcpu *vcpu, struct msr_data *msr_info); int kvm_pmu_set_msr(struct kvm_vcpu *vcpu, struct msr_data *msr_info);
......
...@@ -174,7 +174,7 @@ static struct kvm_pmc *amd_pmc_idx_to_pmc(struct kvm_pmu *pmu, int pmc_idx) ...@@ -174,7 +174,7 @@ static struct kvm_pmc *amd_pmc_idx_to_pmc(struct kvm_pmu *pmu, int pmc_idx)
} }
/* returns 0 if idx's corresponding MSR exists; otherwise returns 1. */ /* returns 0 if idx's corresponding MSR exists; otherwise returns 1. */
static int amd_is_valid_msr_idx(struct kvm_vcpu *vcpu, unsigned idx) static int amd_is_valid_rdpmc_ecx(struct kvm_vcpu *vcpu, unsigned int idx)
{ {
struct kvm_pmu *pmu = vcpu_to_pmu(vcpu); struct kvm_pmu *pmu = vcpu_to_pmu(vcpu);
...@@ -184,7 +184,8 @@ static int amd_is_valid_msr_idx(struct kvm_vcpu *vcpu, unsigned idx) ...@@ -184,7 +184,8 @@ static int amd_is_valid_msr_idx(struct kvm_vcpu *vcpu, unsigned idx)
} }
/* idx is the ECX register of RDPMC instruction */ /* idx is the ECX register of RDPMC instruction */
static struct kvm_pmc *amd_msr_idx_to_pmc(struct kvm_vcpu *vcpu, unsigned idx, u64 *mask) static struct kvm_pmc *amd_rdpmc_ecx_to_pmc(struct kvm_vcpu *vcpu,
unsigned int idx, u64 *mask)
{ {
struct kvm_pmu *pmu = vcpu_to_pmu(vcpu); struct kvm_pmu *pmu = vcpu_to_pmu(vcpu);
struct kvm_pmc *counters; struct kvm_pmc *counters;
...@@ -306,8 +307,8 @@ struct kvm_pmu_ops amd_pmu_ops = { ...@@ -306,8 +307,8 @@ struct kvm_pmu_ops amd_pmu_ops = {
.find_fixed_event = amd_find_fixed_event, .find_fixed_event = amd_find_fixed_event,
.pmc_is_enabled = amd_pmc_is_enabled, .pmc_is_enabled = amd_pmc_is_enabled,
.pmc_idx_to_pmc = amd_pmc_idx_to_pmc, .pmc_idx_to_pmc = amd_pmc_idx_to_pmc,
.msr_idx_to_pmc = amd_msr_idx_to_pmc, .rdpmc_ecx_to_pmc = amd_rdpmc_ecx_to_pmc,
.is_valid_msr_idx = amd_is_valid_msr_idx, .is_valid_rdpmc_ecx = amd_is_valid_rdpmc_ecx,
.is_valid_msr = amd_is_valid_msr, .is_valid_msr = amd_is_valid_msr,
.get_msr = amd_pmu_get_msr, .get_msr = amd_pmu_get_msr,
.set_msr = amd_pmu_set_msr, .set_msr = amd_pmu_set_msr,
......
...@@ -111,7 +111,7 @@ static struct kvm_pmc *intel_pmc_idx_to_pmc(struct kvm_pmu *pmu, int pmc_idx) ...@@ -111,7 +111,7 @@ static struct kvm_pmc *intel_pmc_idx_to_pmc(struct kvm_pmu *pmu, int pmc_idx)
} }
/* returns 0 if idx's corresponding MSR exists; otherwise returns 1. */ /* returns 0 if idx's corresponding MSR exists; otherwise returns 1. */
static int intel_is_valid_msr_idx(struct kvm_vcpu *vcpu, unsigned idx) static int intel_is_valid_rdpmc_ecx(struct kvm_vcpu *vcpu, unsigned int idx)
{ {
struct kvm_pmu *pmu = vcpu_to_pmu(vcpu); struct kvm_pmu *pmu = vcpu_to_pmu(vcpu);
bool fixed = idx & (1u << 30); bool fixed = idx & (1u << 30);
...@@ -122,8 +122,8 @@ static int intel_is_valid_msr_idx(struct kvm_vcpu *vcpu, unsigned idx) ...@@ -122,8 +122,8 @@ static int intel_is_valid_msr_idx(struct kvm_vcpu *vcpu, unsigned idx)
(fixed && idx >= pmu->nr_arch_fixed_counters); (fixed && idx >= pmu->nr_arch_fixed_counters);
} }
static struct kvm_pmc *intel_msr_idx_to_pmc(struct kvm_vcpu *vcpu, static struct kvm_pmc *intel_rdpmc_ecx_to_pmc(struct kvm_vcpu *vcpu,
unsigned idx, u64 *mask) unsigned int idx, u64 *mask)
{ {
struct kvm_pmu *pmu = vcpu_to_pmu(vcpu); struct kvm_pmu *pmu = vcpu_to_pmu(vcpu);
bool fixed = idx & (1u << 30); bool fixed = idx & (1u << 30);
...@@ -366,8 +366,8 @@ struct kvm_pmu_ops intel_pmu_ops = { ...@@ -366,8 +366,8 @@ struct kvm_pmu_ops intel_pmu_ops = {
.find_fixed_event = intel_find_fixed_event, .find_fixed_event = intel_find_fixed_event,
.pmc_is_enabled = intel_pmc_is_enabled, .pmc_is_enabled = intel_pmc_is_enabled,
.pmc_idx_to_pmc = intel_pmc_idx_to_pmc, .pmc_idx_to_pmc = intel_pmc_idx_to_pmc,
.msr_idx_to_pmc = intel_msr_idx_to_pmc, .rdpmc_ecx_to_pmc = intel_rdpmc_ecx_to_pmc,
.is_valid_msr_idx = intel_is_valid_msr_idx, .is_valid_rdpmc_ecx = intel_is_valid_rdpmc_ecx,
.is_valid_msr = intel_is_valid_msr, .is_valid_msr = intel_is_valid_msr,
.get_msr = intel_pmu_get_msr, .get_msr = intel_pmu_get_msr,
.set_msr = intel_pmu_set_msr, .set_msr = intel_pmu_set_msr,
......
...@@ -6144,7 +6144,7 @@ static void emulator_set_smbase(struct x86_emulate_ctxt *ctxt, u64 smbase) ...@@ -6144,7 +6144,7 @@ static void emulator_set_smbase(struct x86_emulate_ctxt *ctxt, u64 smbase)
static int emulator_check_pmc(struct x86_emulate_ctxt *ctxt, static int emulator_check_pmc(struct x86_emulate_ctxt *ctxt,
u32 pmc) u32 pmc)
{ {
return kvm_pmu_is_valid_msr_idx(emul_to_vcpu(ctxt), pmc); return kvm_pmu_is_valid_rdpmc_ecx(emul_to_vcpu(ctxt), pmc);
} }
static int emulator_read_pmc(struct x86_emulate_ctxt *ctxt, static int emulator_read_pmc(struct x86_emulate_ctxt *ctxt,
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment