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Diffstat (limited to 'arch/arm64/kvm/pmu.c')
-rw-r--r--arch/arm64/kvm/pmu.c87
1 files changed, 21 insertions, 66 deletions
diff --git a/arch/arm64/kvm/pmu.c b/arch/arm64/kvm/pmu.c
index 329819806096..0b3adf3e17b4 100644
--- a/arch/arm64/kvm/pmu.c
+++ b/arch/arm64/kvm/pmu.c
@@ -5,6 +5,8 @@
*/
#include <linux/kvm_host.h>
#include <linux/perf_event.h>
+#include <linux/perf/arm_pmu.h>
+#include <linux/perf/arm_pmuv3.h>
static DEFINE_PER_CPU(struct kvm_pmu_events, kvm_pmu_events);
@@ -35,7 +37,7 @@ struct kvm_pmu_events *kvm_get_pmu_events(void)
* Add events to track that we may want to switch at guest entry/exit
* time.
*/
-void kvm_set_pmu_events(u32 set, struct perf_event_attr *attr)
+void kvm_set_pmu_events(u64 set, struct perf_event_attr *attr)
{
struct kvm_pmu_events *pmu = kvm_get_pmu_events();
@@ -51,7 +53,7 @@ void kvm_set_pmu_events(u32 set, struct perf_event_attr *attr)
/*
* Stop tracking events
*/
-void kvm_clr_pmu_events(u32 clr)
+void kvm_clr_pmu_events(u64 clr)
{
struct kvm_pmu_events *pmu = kvm_get_pmu_events();
@@ -62,79 +64,32 @@ void kvm_clr_pmu_events(u32 clr)
pmu->events_guest &= ~clr;
}
-#define PMEVTYPER_READ_CASE(idx) \
- case idx: \
- return read_sysreg(pmevtyper##idx##_el0)
-
-#define PMEVTYPER_WRITE_CASE(idx) \
- case idx: \
- write_sysreg(val, pmevtyper##idx##_el0); \
- break
-
-#define PMEVTYPER_CASES(readwrite) \
- PMEVTYPER_##readwrite##_CASE(0); \
- PMEVTYPER_##readwrite##_CASE(1); \
- PMEVTYPER_##readwrite##_CASE(2); \
- PMEVTYPER_##readwrite##_CASE(3); \
- PMEVTYPER_##readwrite##_CASE(4); \
- PMEVTYPER_##readwrite##_CASE(5); \
- PMEVTYPER_##readwrite##_CASE(6); \
- PMEVTYPER_##readwrite##_CASE(7); \
- PMEVTYPER_##readwrite##_CASE(8); \
- PMEVTYPER_##readwrite##_CASE(9); \
- PMEVTYPER_##readwrite##_CASE(10); \
- PMEVTYPER_##readwrite##_CASE(11); \
- PMEVTYPER_##readwrite##_CASE(12); \
- PMEVTYPER_##readwrite##_CASE(13); \
- PMEVTYPER_##readwrite##_CASE(14); \
- PMEVTYPER_##readwrite##_CASE(15); \
- PMEVTYPER_##readwrite##_CASE(16); \
- PMEVTYPER_##readwrite##_CASE(17); \
- PMEVTYPER_##readwrite##_CASE(18); \
- PMEVTYPER_##readwrite##_CASE(19); \
- PMEVTYPER_##readwrite##_CASE(20); \
- PMEVTYPER_##readwrite##_CASE(21); \
- PMEVTYPER_##readwrite##_CASE(22); \
- PMEVTYPER_##readwrite##_CASE(23); \
- PMEVTYPER_##readwrite##_CASE(24); \
- PMEVTYPER_##readwrite##_CASE(25); \
- PMEVTYPER_##readwrite##_CASE(26); \
- PMEVTYPER_##readwrite##_CASE(27); \
- PMEVTYPER_##readwrite##_CASE(28); \
- PMEVTYPER_##readwrite##_CASE(29); \
- PMEVTYPER_##readwrite##_CASE(30)
-
/*
* Read a value direct from PMEVTYPER<idx> where idx is 0-30
- * or PMCCFILTR_EL0 where idx is ARMV8_PMU_CYCLE_IDX (31).
+ * or PMxCFILTR_EL0 where idx is 31-32.
*/
static u64 kvm_vcpu_pmu_read_evtype_direct(int idx)
{
- switch (idx) {
- PMEVTYPER_CASES(READ);
- case ARMV8_PMU_CYCLE_IDX:
- return read_sysreg(pmccfiltr_el0);
- default:
- WARN_ON(1);
- }
+ if (idx == ARMV8_PMU_CYCLE_IDX)
+ return read_pmccfiltr();
+ else if (idx == ARMV8_PMU_INSTR_IDX)
+ return read_pmicfiltr();
- return 0;
+ return read_pmevtypern(idx);
}
/*
* Write a value direct to PMEVTYPER<idx> where idx is 0-30
- * or PMCCFILTR_EL0 where idx is ARMV8_PMU_CYCLE_IDX (31).
+ * or PMxCFILTR_EL0 where idx is 31-32.
*/
static void kvm_vcpu_pmu_write_evtype_direct(int idx, u32 val)
{
- switch (idx) {
- PMEVTYPER_CASES(WRITE);
- case ARMV8_PMU_CYCLE_IDX:
- write_sysreg(val, pmccfiltr_el0);
- break;
- default:
- WARN_ON(1);
- }
+ if (idx == ARMV8_PMU_CYCLE_IDX)
+ write_pmccfiltr(val);
+ else if (idx == ARMV8_PMU_INSTR_IDX)
+ write_pmicfiltr(val);
+ else
+ write_pmevtypern(idx, val);
}
/*
@@ -145,7 +100,7 @@ static void kvm_vcpu_pmu_enable_el0(unsigned long events)
u64 typer;
u32 counter;
- for_each_set_bit(counter, &events, 32) {
+ for_each_set_bit(counter, &events, ARMPMU_MAX_HWEVENTS) {
typer = kvm_vcpu_pmu_read_evtype_direct(counter);
typer &= ~ARMV8_PMU_EXCLUDE_EL0;
kvm_vcpu_pmu_write_evtype_direct(counter, typer);
@@ -160,7 +115,7 @@ static void kvm_vcpu_pmu_disable_el0(unsigned long events)
u64 typer;
u32 counter;
- for_each_set_bit(counter, &events, 32) {
+ for_each_set_bit(counter, &events, ARMPMU_MAX_HWEVENTS) {
typer = kvm_vcpu_pmu_read_evtype_direct(counter);
typer |= ARMV8_PMU_EXCLUDE_EL0;
kvm_vcpu_pmu_write_evtype_direct(counter, typer);
@@ -176,7 +131,7 @@ static void kvm_vcpu_pmu_disable_el0(unsigned long events)
void kvm_vcpu_pmu_restore_guest(struct kvm_vcpu *vcpu)
{
struct kvm_pmu_events *pmu;
- u32 events_guest, events_host;
+ u64 events_guest, events_host;
if (!kvm_arm_support_pmu_v3() || !has_vhe())
return;
@@ -197,7 +152,7 @@ void kvm_vcpu_pmu_restore_guest(struct kvm_vcpu *vcpu)
void kvm_vcpu_pmu_restore_host(struct kvm_vcpu *vcpu)
{
struct kvm_pmu_events *pmu;
- u32 events_guest, events_host;
+ u64 events_guest, events_host;
if (!kvm_arm_support_pmu_v3() || !has_vhe())
return;