@@ -805,7 +805,7 @@ static const struct sys_reg_desc sys_reg_descs[] = {
access_pmu_regs, reset_unknown, PMXEVCNTR_EL0 },
/* PMUSERENR_EL0 */
{ Op0(0b11), Op1(0b011), CRn(0b1001), CRm(0b1110), Op2(0b000),
- trap_raz_wi },
+ access_pmu_regs, reset_unknown, PMUSERENR_EL0 },
/* PMOVSSET_EL0 */
{ Op0(0b11), Op1(0b011), CRn(0b1001), CRm(0b1110), Op2(0b011),
access_pmu_regs, reset_unknown, PMOVSSET_EL0 },
@@ -1156,7 +1156,8 @@ static const struct sys_reg_desc cp15_regs[] = {
reset_unknown_cp15, c9_PMXEVTYPER },
{ Op1( 0), CRn( 9), CRm(13), Op2( 2), access_pmu_cp15_regs,
reset_unknown_cp15, c9_PMXEVCNTR },
- { Op1( 0), CRn( 9), CRm(14), Op2( 0), trap_raz_wi },
+ { Op1( 0), CRn( 9), CRm(14), Op2( 0), access_pmu_cp15_regs,
+ reset_val_cp15, c9_PMUSERENR, 0 },
{ Op1( 0), CRn( 9), CRm(14), Op2( 1), access_pmu_cp15_regs,
reset_unknown_cp15, c9_PMINTENSET },
{ Op1( 0), CRn( 9), CRm(14), Op2( 2), access_pmu_cp15_regs,
@@ -125,6 +125,14 @@ static inline void reset_val(struct kvm_vcpu *vcpu, const struct sys_reg_desc *r
vcpu_sys_reg(vcpu, r->reg) = r->val;
}
+static inline void reset_val_cp15(struct kvm_vcpu *vcpu,
+ const struct sys_reg_desc *r)
+{
+ BUG_ON(!r->reg);
+ BUG_ON(r->reg >= NR_SYS_REGS);
+ vcpu_cp15(vcpu, r->reg) = r->val;
+}
+
static inline int cmp_sys_reg(const struct sys_reg_desc *i1,
const struct sys_reg_desc *i2)
{
The reset value of PMUSERENR_EL0 is UNKNOWN, use reset_unknown. While the reset value of PMUSERENR is zero, use reset_val_cp15 with zero for its reset handler. Add a helper for CP15 registers reset to specified value. Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org> --- arch/arm64/kvm/sys_regs.c | 5 +++-- arch/arm64/kvm/sys_regs.h | 8 ++++++++ 2 files changed, 11 insertions(+), 2 deletions(-)