[PATCH v2 2/8] KVM: arm64: PMU: Use reset_pmu_reg() for PMUSERENR_EL0 and PMCCFILTR_EL0
Reiji Watanabe
reijiw at google.com
Mon Jan 16 17:35:36 PST 2023
The default reset function for PMU registers (reset_pmu_reg())
now simply clears a specified register. Use that function for
PMUSERENR_EL0 and PMCCFILTR_EL0, as KVM currently clears those
registers on vCPU reset (NOTE: All non-RES0 fields of those
registers have UNKNOWN reset values, and the same fields of
their AArch32 registers have 0 reset values).
No functional change intended.
Signed-off-by: Reiji Watanabe <reijiw at google.com>
---
arch/arm64/kvm/sys_regs.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c
index ec4bdaf71a15..4959658b502c 100644
--- a/arch/arm64/kvm/sys_regs.c
+++ b/arch/arm64/kvm/sys_regs.c
@@ -1747,7 +1747,7 @@ static const struct sys_reg_desc sys_reg_descs[] = {
* in 32bit mode. Here we choose to reset it as zero for consistency.
*/
{ PMU_SYS_REG(SYS_PMUSERENR_EL0), .access = access_pmuserenr,
- .reset = reset_val, .reg = PMUSERENR_EL0, .val = 0 },
+ .reg = PMUSERENR_EL0 },
{ PMU_SYS_REG(SYS_PMOVSSET_EL0),
.access = access_pmovs, .reg = PMOVSSET_EL0 },
@@ -1903,7 +1903,7 @@ static const struct sys_reg_desc sys_reg_descs[] = {
* in 32bit mode. Here we choose to reset it as zero for consistency.
*/
{ PMU_SYS_REG(SYS_PMCCFILTR_EL0), .access = access_pmu_evtyper,
- .reset = reset_val, .reg = PMCCFILTR_EL0, .val = 0 },
+ .reg = PMCCFILTR_EL0 },
{ SYS_DESC(SYS_DACR32_EL2), NULL, reset_unknown, DACR32_EL2 },
{ SYS_DESC(SYS_IFSR32_EL2), NULL, reset_unknown, IFSR32_EL2 },
--
2.39.0.314.g84b9a713c41-goog
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