[PATCH v3 2/4] KVM: arm64: Enable writable for ID_DFR0_EL1
Jing Zhang
jingzhangos at google.com
Wed Apr 5 10:21:44 PDT 2023
All valid fields in ID_DFR0_EL1 are writable from usrespace with this
change.
Signed-off-by: Jing Zhang <jingzhangos at google.com>
---
arch/arm64/kvm/id_regs.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm64/kvm/id_regs.c b/arch/arm64/kvm/id_regs.c
index ca26fdabcf66..11d3a1d46ee5 100644
--- a/arch/arm64/kvm/id_regs.c
+++ b/arch/arm64/kvm/id_regs.c
@@ -548,7 +548,7 @@ const struct sys_reg_desc id_reg_descs[KVM_ARM_ID_REG_NUM] = {
.set_user = set_id_dfr0_el1,
.visibility = aa32_id_visibility,
.reset = read_sanitised_id_dfr0_el1,
- .val = ID_DFR0_EL1_PerfMon_MASK, },
+ .val = GENMASK(63, 0), },
ID_HIDDEN(ID_AFR0_EL1),
AA32_ID_SANITISED(ID_MMFR0_EL1),
AA32_ID_SANITISED(ID_MMFR1_EL1),
--
2.40.0.348.gf938b09366-goog
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