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KVM: x86/vPMU: rename a few PMU functions 

Before introducing a pmu.h header for them, make the naming more
consistent.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Wei Huang 2015-06-19 13:44:45 +02:00 committed by Paolo Bonzini
parent 6a39bbc5da
commit c6702c9dcf
4 changed files with 49 additions and 49 deletions
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12
arch/x86/include/asm/kvm_host.h
View File

@ -1198,14 +1198,14 @@ int kvm_is_in_guest(void);
void kvm_pmu_init(struct kvm_vcpu *vcpu);
void kvm_pmu_destroy(struct kvm_vcpu *vcpu);
void kvm_pmu_reset(struct kvm_vcpu *vcpu);
void kvm_pmu_cpuid_update(struct kvm_vcpu *vcpu);
bool kvm_pmu_msr(struct kvm_vcpu *vcpu, u32 msr);
void kvm_pmu_refresh(struct kvm_vcpu *vcpu);
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_set_msr(struct kvm_vcpu *vcpu, struct msr_data *msr_info);
int kvm_pmu_check_pmc(struct kvm_vcpu *vcpu, unsigned pmc);
int kvm_pmu_read_pmc(struct kvm_vcpu *vcpu, unsigned pmc, u64 *data);
void kvm_handle_pmu_event(struct kvm_vcpu *vcpu);
void kvm_deliver_pmi(struct kvm_vcpu *vcpu);
int kvm_pmu_is_valid_msr_idx(struct kvm_vcpu *vcpu, unsigned pmc);
int kvm_pmu_rdpmc(struct kvm_vcpu *vcpu, unsigned pmc, u64 *data);
void kvm_pmu_handle_event(struct kvm_vcpu *vcpu);
void kvm_pmu_deliver_pmi(struct kvm_vcpu *vcpu);
int __x86_set_memory_region(struct kvm *kvm,
const struct kvm_userspace_memory_region *mem);

2
arch/x86/kvm/cpuid.c
View File

@ -111,7 +111,7 @@ int kvm_update_cpuid(struct kvm_vcpu *vcpu)
/* Update physical-address width */
vcpu->arch.maxphyaddr = cpuid_query_maxphyaddr(vcpu);
kvm_pmu_cpuid_update(vcpu);
kvm_pmu_refresh(vcpu);
return 0;
}

66
arch/x86/kvm/pmu.c
View File

@ -52,7 +52,7 @@ static inline u64 pmc_bitmask(struct kvm_pmc *pmc)
return pmu->counter_bitmask[pmc->type];
}
static inline bool pmc_enabled(struct kvm_pmc *pmc)
static inline bool pmc_is_enabled(struct kvm_pmc *pmc)
{
struct kvm_pmu *pmu = &pmc->vcpu->arch.pmu;
return test_bit(pmc->idx, (unsigned long *)&pmu->global_ctrl);
@ -87,20 +87,20 @@ static struct kvm_pmc *global_idx_to_pmc(struct kvm_pmu *pmu, int idx)
return get_fixed_pmc_idx(pmu, idx - INTEL_PMC_IDX_FIXED);
}
void kvm_deliver_pmi(struct kvm_vcpu *vcpu)
void kvm_pmu_deliver_pmi(struct kvm_vcpu *vcpu)
{
if (vcpu->arch.apic)
kvm_apic_local_deliver(vcpu->arch.apic, APIC_LVTPC);
}
static void trigger_pmi(struct irq_work *irq_work)
static void kvm_pmi_trigger_fn(struct irq_work *irq_work)
{
struct kvm_pmu *pmu = container_of(irq_work, struct kvm_pmu,
irq_work);
struct kvm_vcpu *vcpu = container_of(pmu, struct kvm_vcpu,
arch.pmu);
kvm_deliver_pmi(vcpu);
kvm_pmu_deliver_pmi(vcpu);
}
static void kvm_perf_overflow(struct perf_event *perf_event,
@ -138,7 +138,7 @@ static void kvm_perf_overflow_intr(struct perf_event *perf_event,
}
}
static u64 read_pmc(struct kvm_pmc *pmc)
static u64 pmc_read_counter(struct kvm_pmc *pmc)
{
u64 counter, enabled, running;
@ -153,16 +153,16 @@ static u64 read_pmc(struct kvm_pmc *pmc)
return counter & pmc_bitmask(pmc);
}
static void stop_counter(struct kvm_pmc *pmc)
static void pmc_stop_counter(struct kvm_pmc *pmc)
{
if (pmc->perf_event) {
pmc->counter = read_pmc(pmc);
pmc->counter = pmc_read_counter(pmc);
perf_event_release_kernel(pmc->perf_event);
pmc->perf_event = NULL;
}
}
static void reprogram_counter(struct kvm_pmc *pmc, u32 type,
static void pmc_reprogram_counter(struct kvm_pmc *pmc, u32 type,
unsigned config, bool exclude_user, bool exclude_kernel,
bool intr, bool in_tx, bool in_tx_cp)
{
@ -224,9 +224,9 @@ static void reprogram_gp_counter(struct kvm_pmc *pmc, u64 eventsel)
pmc->eventsel = eventsel;
stop_counter(pmc);
pmc_stop_counter(pmc);
if (!(eventsel & ARCH_PERFMON_EVENTSEL_ENABLE) || !pmc_enabled(pmc))
if (!(eventsel & ARCH_PERFMON_EVENTSEL_ENABLE) || !pmc_is_enabled(pmc))
return;
event_select = eventsel & ARCH_PERFMON_EVENTSEL_EVENT;
@ -246,7 +246,7 @@ static void reprogram_gp_counter(struct kvm_pmc *pmc, u64 eventsel)
if (type == PERF_TYPE_RAW)
config = eventsel & X86_RAW_EVENT_MASK;
reprogram_counter(pmc, type, config,
pmc_reprogram_counter(pmc, type, config,
!(eventsel & ARCH_PERFMON_EVENTSEL_USR),
!(eventsel & ARCH_PERFMON_EVENTSEL_OS),
eventsel & ARCH_PERFMON_EVENTSEL_INT,
@ -259,19 +259,19 @@ static void reprogram_fixed_counter(struct kvm_pmc *pmc, u8 en_pmi, int idx)
unsigned en = en_pmi & 0x3;
bool pmi = en_pmi & 0x8;
stop_counter(pmc);
pmc_stop_counter(pmc);
if (!en || !pmc_enabled(pmc))
if (!en || !pmc_is_enabled(pmc))
return;
reprogram_counter(pmc, PERF_TYPE_HARDWARE,
pmc_reprogram_counter(pmc, PERF_TYPE_HARDWARE,
arch_events[fixed_pmc_events[idx]].event_type,
!(en & 0x2), /* exclude user */
!(en & 0x1), /* exclude kernel */
pmi, false, false);
}
static inline u8 fixed_en_pmi(u64 ctrl, int idx)
static inline u8 fixed_ctrl_field(u64 ctrl, int idx)
{
return (ctrl >> (idx * 4)) & 0xf;
}
@ -281,10 +281,10 @@ static void reprogram_fixed_counters(struct kvm_pmu *pmu, u64 data)
int i;
for (i = 0; i < pmu->nr_arch_fixed_counters; i++) {
u8 en_pmi = fixed_en_pmi(data, i);
u8 en_pmi = fixed_ctrl_field(data, i);
struct kvm_pmc *pmc = get_fixed_pmc_idx(pmu, i);
if (fixed_en_pmi(pmu->fixed_ctr_ctrl, i) == en_pmi)
if (fixed_ctrl_field(pmu->fixed_ctr_ctrl, i) == en_pmi)
continue;
reprogram_fixed_counter(pmc, en_pmi, i);
@ -293,7 +293,7 @@ static void reprogram_fixed_counters(struct kvm_pmu *pmu, u64 data)
pmu->fixed_ctr_ctrl = data;
}
static void reprogram_idx(struct kvm_pmu *pmu, int idx)
static void reprogram_counter(struct kvm_pmu *pmu, int idx)
{
struct kvm_pmc *pmc = global_idx_to_pmc(pmu, idx);
@ -305,7 +305,7 @@ static void reprogram_idx(struct kvm_pmu *pmu, int idx)
else {
int fidx = idx - INTEL_PMC_IDX_FIXED;
reprogram_fixed_counter(pmc,
fixed_en_pmi(pmu->fixed_ctr_ctrl, fidx), fidx);
fixed_ctrl_field(pmu->fixed_ctr_ctrl, fidx), fidx);
}
}
@ -317,10 +317,10 @@ static void global_ctrl_changed(struct kvm_pmu *pmu, u64 data)
pmu->global_ctrl = data;
for_each_set_bit(bit, (unsigned long *)&diff, X86_PMC_IDX_MAX)
reprogram_idx(pmu, bit);
reprogram_counter(pmu, bit);
}
bool kvm_pmu_msr(struct kvm_vcpu *vcpu, u32 msr)
bool kvm_pmu_is_valid_msr(struct kvm_vcpu *vcpu, u32 msr)
{
struct kvm_pmu *pmu = &vcpu->arch.pmu;
int ret;
@ -362,7 +362,7 @@ int kvm_pmu_get_msr(struct kvm_vcpu *vcpu, u32 index, u64 *data)
default:
if ((pmc = get_gp_pmc(pmu, index, MSR_IA32_PERFCTR0)) ||
(pmc = get_fixed_pmc(pmu, index))) {
*data = read_pmc(pmc);
*data = pmc_read_counter(pmc);
return 0;
} else if ((pmc = get_gp_pmc(pmu, index, MSR_P6_EVNTSEL0))) {
*data = pmc->eventsel;
@ -415,7 +415,7 @@ int kvm_pmu_set_msr(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
(pmc = get_fixed_pmc(pmu, index))) {
if (!msr_info->host_initiated)
data = (s64)(s32)data;
pmc->counter += data - read_pmc(pmc);
pmc->counter += data - pmc_read_counter(pmc);
return 0;
} else if ((pmc = get_gp_pmc(pmu, index, MSR_P6_EVNTSEL0))) {
if (data == pmc->eventsel)
@ -429,7 +429,7 @@ int kvm_pmu_set_msr(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
return 1;
}
int kvm_pmu_check_pmc(struct kvm_vcpu *vcpu, unsigned pmc)
int kvm_pmu_is_valid_msr_idx(struct kvm_vcpu *vcpu, unsigned pmc)
{
struct kvm_pmu *pmu = &vcpu->arch.pmu;
bool fixed = pmc & (1u << 30);
@ -438,7 +438,7 @@ int kvm_pmu_check_pmc(struct kvm_vcpu *vcpu, unsigned pmc)
(fixed && pmc >= pmu->nr_arch_fixed_counters);
}
int kvm_pmu_read_pmc(struct kvm_vcpu *vcpu, unsigned pmc, u64 *data)
int kvm_pmu_rdpmc(struct kvm_vcpu *vcpu, unsigned pmc, u64 *data)
{
struct kvm_pmu *pmu = &vcpu->arch.pmu;
bool fast_mode = pmc & (1u << 31);
@ -452,7 +452,7 @@ int kvm_pmu_read_pmc(struct kvm_vcpu *vcpu, unsigned pmc, u64 *data)
if (fixed && pmc >= pmu->nr_arch_fixed_counters)
return 1;
counters = fixed ? pmu->fixed_counters : pmu->gp_counters;
ctr = read_pmc(&counters[pmc]);
ctr = pmc_read_counter(&counters[pmc]);
if (fast_mode)
ctr = (u32)ctr;
*data = ctr;
@ -460,7 +460,7 @@ int kvm_pmu_read_pmc(struct kvm_vcpu *vcpu, unsigned pmc, u64 *data)
return 0;
}
void kvm_pmu_cpuid_update(struct kvm_vcpu *vcpu)
void kvm_pmu_refresh(struct kvm_vcpu *vcpu)
{
struct kvm_pmu *pmu = &vcpu->arch.pmu;
struct kvm_cpuid_entry2 *entry;
@ -527,8 +527,8 @@ void kvm_pmu_init(struct kvm_vcpu *vcpu)
pmu->fixed_counters[i].vcpu = vcpu;
pmu->fixed_counters[i].idx = i + INTEL_PMC_IDX_FIXED;
}
init_irq_work(&pmu->irq_work, trigger_pmi);
kvm_pmu_cpuid_update(vcpu);
init_irq_work(&pmu->irq_work, kvm_pmi_trigger_fn);
kvm_pmu_refresh(vcpu);
}
void kvm_pmu_reset(struct kvm_vcpu *vcpu)
@ -539,12 +539,12 @@ void kvm_pmu_reset(struct kvm_vcpu *vcpu)
irq_work_sync(&pmu->irq_work);
for (i = 0; i < INTEL_PMC_MAX_GENERIC; i++) {
struct kvm_pmc *pmc = &pmu->gp_counters[i];
stop_counter(pmc);
pmc_stop_counter(pmc);
pmc->counter = pmc->eventsel = 0;
}
for (i = 0; i < INTEL_PMC_MAX_FIXED; i++)
stop_counter(&pmu->fixed_counters[i]);
pmc_stop_counter(&pmu->fixed_counters[i]);
pmu->fixed_ctr_ctrl = pmu->global_ctrl = pmu->global_status =
pmu->global_ovf_ctrl = 0;
@ -555,7 +555,7 @@ void kvm_pmu_destroy(struct kvm_vcpu *vcpu)
kvm_pmu_reset(vcpu);
}
void kvm_handle_pmu_event(struct kvm_vcpu *vcpu)
void kvm_pmu_handle_event(struct kvm_vcpu *vcpu)
{
struct kvm_pmu *pmu = &vcpu->arch.pmu;
u64 bitmask;
@ -571,6 +571,6 @@ void kvm_handle_pmu_event(struct kvm_vcpu *vcpu)
continue;
}
reprogram_idx(pmu, bit);
reprogram_counter(pmu, bit);
}
}

18
arch/x86/kvm/x86.c
View File

@ -913,7 +913,7 @@ bool kvm_rdpmc(struct kvm_vcpu *vcpu)
u64 data;
int err;
err = kvm_pmu_read_pmc(vcpu, ecx, &data);
err = kvm_pmu_rdpmc(vcpu, ecx, &data);
if (err)
return err;
kvm_register_write(vcpu, VCPU_REGS_RAX, (u32)data);
@ -2231,7 +2231,7 @@ int kvm_set_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
pr = true;
case MSR_P6_EVNTSEL0:
case MSR_P6_EVNTSEL1:
if (kvm_pmu_msr(vcpu, msr))
if (kvm_pmu_is_valid_msr(vcpu, msr))
return kvm_pmu_set_msr(vcpu, msr_info);
if (pr || data != 0)
@ -2277,7 +2277,7 @@ int kvm_set_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
default:
if (msr && (msr == vcpu->kvm->arch.xen_hvm_config.msr))
return xen_hvm_config(vcpu, data);
if (kvm_pmu_msr(vcpu, msr))
if (kvm_pmu_is_valid_msr(vcpu, msr))
return kvm_pmu_set_msr(vcpu, msr_info);
if (!ignore_msrs) {
vcpu_unimpl(vcpu, "unhandled wrmsr: 0x%x data %llx\n",
@ -2435,7 +2435,7 @@ int kvm_get_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
case MSR_P6_PERFCTR1:
case MSR_P6_EVNTSEL0:
case MSR_P6_EVNTSEL1:
if (kvm_pmu_msr(vcpu, msr_info->index))
if (kvm_pmu_is_valid_msr(vcpu, msr_info->index))
return kvm_pmu_get_msr(vcpu, msr_info->index, &msr_info->data);
msr_info->data = 0;
break;
@ -2561,7 +2561,7 @@ int kvm_get_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
msr_info->data = vcpu->arch.osvw.status;
break;
default:
if (kvm_pmu_msr(vcpu, msr_info->index))
if (kvm_pmu_is_valid_msr(vcpu, msr_info->index))
return kvm_pmu_get_msr(vcpu, msr_info->index, &msr_info->data);
if (!ignore_msrs) {
vcpu_unimpl(vcpu, "unhandled rdmsr: 0x%x\n", msr_info->index);
@ -4966,13 +4966,13 @@ static void emulator_set_smbase(struct x86_emulate_ctxt *ctxt, u64 smbase)
static int emulator_check_pmc(struct x86_emulate_ctxt *ctxt,
u32 pmc)
{
return kvm_pmu_check_pmc(emul_to_vcpu(ctxt), pmc);
return kvm_pmu_is_valid_msr_idx(emul_to_vcpu(ctxt), pmc);
}
static int emulator_read_pmc(struct x86_emulate_ctxt *ctxt,
u32 pmc, u64 *pdata)
{
return kvm_pmu_read_pmc(emul_to_vcpu(ctxt), pmc, pdata);
return kvm_pmu_rdpmc(emul_to_vcpu(ctxt), pmc, pdata);
}
static void emulator_halt(struct x86_emulate_ctxt *ctxt)
@ -6542,9 +6542,9 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu)
if (kvm_check_request(KVM_REQ_NMI, vcpu))
process_nmi(vcpu);
if (kvm_check_request(KVM_REQ_PMU, vcpu))
kvm_handle_pmu_event(vcpu);
kvm_pmu_handle_event(vcpu);
if (kvm_check_request(KVM_REQ_PMI, vcpu))
kvm_deliver_pmi(vcpu);
kvm_pmu_deliver_pmi(vcpu);
if (kvm_check_request(KVM_REQ_SCAN_IOAPIC, vcpu))
vcpu_scan_ioapic(vcpu);
if (kvm_check_request(KVM_REQ_APIC_PAGE_RELOAD, vcpu))