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-rw-r--r--arch/arm64/kvm/sys_regs.c68
1 files changed, 48 insertions, 20 deletions
diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c
index 42ccc27fb684..45f4ae71c8dc 100644
--- a/arch/arm64/kvm/sys_regs.c
+++ b/arch/arm64/kvm/sys_regs.c
@@ -590,6 +590,15 @@ static void reset_mpidr(struct kvm_vcpu *vcpu, const struct sys_reg_desc *r)
vcpu_write_sys_reg(vcpu, (1ULL << 31) | mpidr, MPIDR_EL1);
}
+static unsigned int pmu_visibility(const struct kvm_vcpu *vcpu,
+ const struct sys_reg_desc *r)
+{
+ if (kvm_vcpu_has_pmu(vcpu))
+ return 0;
+
+ return REG_HIDDEN;
+}
+
static void reset_pmcr(struct kvm_vcpu *vcpu, const struct sys_reg_desc *r)
{
u64 pmcr, val;
@@ -936,15 +945,18 @@ static bool access_pmuserenr(struct kvm_vcpu *vcpu, struct sys_reg_params *p,
{ SYS_DESC(SYS_DBGWCRn_EL1(n)), \
trap_wcr, reset_wcr, 0, 0, get_wcr, set_wcr }
+#define PMU_SYS_REG(r) \
+ SYS_DESC(r), .reset = reset_unknown, .visibility = pmu_visibility
+
/* Macro to expand the PMEVCNTRn_EL0 register */
#define PMU_PMEVCNTR_EL0(n) \
- { SYS_DESC(SYS_PMEVCNTRn_EL0(n)), \
- access_pmu_evcntr, reset_unknown, (PMEVCNTR0_EL0 + n), }
+ { PMU_SYS_REG(SYS_PMEVCNTRn_EL0(n)), \
+ .access = access_pmu_evcntr, .reg = (PMEVCNTR0_EL0 + n), }
/* Macro to expand the PMEVTYPERn_EL0 register */
#define PMU_PMEVTYPER_EL0(n) \
- { SYS_DESC(SYS_PMEVTYPERn_EL0(n)), \
- access_pmu_evtyper, reset_unknown, (PMEVTYPER0_EL0 + n), }
+ { PMU_SYS_REG(SYS_PMEVTYPERn_EL0(n)), \
+ .access = access_pmu_evtyper, .reg = (PMEVTYPER0_EL0 + n), }
static bool undef_access(struct kvm_vcpu *vcpu, struct sys_reg_params *p,
const struct sys_reg_desc *r)
@@ -1486,8 +1498,10 @@ static const struct sys_reg_desc sys_reg_descs[] = {
{ SYS_DESC(SYS_FAR_EL1), access_vm_reg, reset_unknown, FAR_EL1 },
{ SYS_DESC(SYS_PAR_EL1), NULL, reset_unknown, PAR_EL1 },
- { SYS_DESC(SYS_PMINTENSET_EL1), access_pminten, reset_unknown, PMINTENSET_EL1 },
- { SYS_DESC(SYS_PMINTENCLR_EL1), access_pminten, reset_unknown, PMINTENSET_EL1 },
+ { PMU_SYS_REG(SYS_PMINTENSET_EL1),
+ .access = access_pminten, .reg = PMINTENSET_EL1 },
+ { PMU_SYS_REG(SYS_PMINTENCLR_EL1),
+ .access = access_pminten, .reg = PMINTENSET_EL1 },
{ SYS_DESC(SYS_MAIR_EL1), access_vm_reg, reset_unknown, MAIR_EL1 },
{ SYS_DESC(SYS_AMAIR_EL1), access_vm_reg, reset_amair_el1, AMAIR_EL1 },
@@ -1526,23 +1540,36 @@ static const struct sys_reg_desc sys_reg_descs[] = {
{ SYS_DESC(SYS_CSSELR_EL1), access_csselr, reset_unknown, CSSELR_EL1 },
{ SYS_DESC(SYS_CTR_EL0), access_ctr },
- { SYS_DESC(SYS_PMCR_EL0), access_pmcr, reset_pmcr, PMCR_EL0 },
- { SYS_DESC(SYS_PMCNTENSET_EL0), access_pmcnten, reset_unknown, PMCNTENSET_EL0 },
- { SYS_DESC(SYS_PMCNTENCLR_EL0), access_pmcnten, reset_unknown, PMCNTENSET_EL0 },
- { SYS_DESC(SYS_PMOVSCLR_EL0), access_pmovs, reset_unknown, PMOVSSET_EL0 },
- { SYS_DESC(SYS_PMSWINC_EL0), access_pmswinc, reset_unknown, PMSWINC_EL0 },
- { SYS_DESC(SYS_PMSELR_EL0), access_pmselr, reset_unknown, PMSELR_EL0 },
- { SYS_DESC(SYS_PMCEID0_EL0), access_pmceid },
- { SYS_DESC(SYS_PMCEID1_EL0), access_pmceid },
- { SYS_DESC(SYS_PMCCNTR_EL0), access_pmu_evcntr, reset_unknown, PMCCNTR_EL0 },
- { SYS_DESC(SYS_PMXEVTYPER_EL0), access_pmu_evtyper },
- { SYS_DESC(SYS_PMXEVCNTR_EL0), access_pmu_evcntr },
+ { PMU_SYS_REG(SYS_PMCR_EL0), .access = access_pmcr,
+ .reset = reset_pmcr, .reg = PMCR_EL0 },
+ { PMU_SYS_REG(SYS_PMCNTENSET_EL0),
+ .access = access_pmcnten, .reg = PMCNTENSET_EL0 },
+ { PMU_SYS_REG(SYS_PMCNTENCLR_EL0),
+ .access = access_pmcnten, .reg = PMCNTENSET_EL0 },
+ { PMU_SYS_REG(SYS_PMOVSCLR_EL0),
+ .access = access_pmovs, .reg = PMOVSSET_EL0 },
+ { PMU_SYS_REG(SYS_PMSWINC_EL0),
+ .access = access_pmswinc, .reg = PMSWINC_EL0 },
+ { PMU_SYS_REG(SYS_PMSELR_EL0),
+ .access = access_pmselr, .reg = PMSELR_EL0 },
+ { PMU_SYS_REG(SYS_PMCEID0_EL0),
+ .access = access_pmceid, .reset = NULL },
+ { PMU_SYS_REG(SYS_PMCEID1_EL0),
+ .access = access_pmceid, .reset = NULL },
+ { PMU_SYS_REG(SYS_PMCCNTR_EL0),
+ .access = access_pmu_evcntr, .reg = PMCCNTR_EL0 },
+ { PMU_SYS_REG(SYS_PMXEVTYPER_EL0),
+ .access = access_pmu_evtyper, .reset = NULL },
+ { PMU_SYS_REG(SYS_PMXEVCNTR_EL0),
+ .access = access_pmu_evcntr, .reset = NULL },
/*
* PMUSERENR_EL0 resets as unknown in 64bit mode while it resets as zero
* in 32bit mode. Here we choose to reset it as zero for consistency.
*/
- { SYS_DESC(SYS_PMUSERENR_EL0), access_pmuserenr, reset_val, PMUSERENR_EL0, 0 },
- { SYS_DESC(SYS_PMOVSSET_EL0), access_pmovs, reset_unknown, PMOVSSET_EL0 },
+ { PMU_SYS_REG(SYS_PMUSERENR_EL0), .access = access_pmuserenr,
+ .reset = reset_val, .reg = PMUSERENR_EL0, .val = 0 },
+ { PMU_SYS_REG(SYS_PMOVSSET_EL0),
+ .access = access_pmovs, .reg = PMOVSSET_EL0 },
{ SYS_DESC(SYS_TPIDR_EL0), NULL, reset_unknown, TPIDR_EL0 },
{ SYS_DESC(SYS_TPIDRRO_EL0), NULL, reset_unknown, TPIDRRO_EL0 },
@@ -1694,7 +1721,8 @@ static const struct sys_reg_desc sys_reg_descs[] = {
* PMCCFILTR_EL0 resets as unknown in 64bit mode while it resets as zero
* in 32bit mode. Here we choose to reset it as zero for consistency.
*/
- { SYS_DESC(SYS_PMCCFILTR_EL0), access_pmu_evtyper, reset_val, PMCCFILTR_EL0, 0 },
+ { PMU_SYS_REG(SYS_PMCCFILTR_EL0), .access = access_pmu_evtyper,
+ .reset = reset_val, .reg = PMCCFILTR_EL0, .val = 0 },
{ SYS_DESC(SYS_DACR32_EL2), NULL, reset_unknown, DACR32_EL2 },
{ SYS_DESC(SYS_IFSR32_EL2), NULL, reset_unknown, IFSR32_EL2 },