diff mbox series

[v5,2/6] KVM: arm64: Enable writable for ID_AA64DFR0_EL1 and ID_DFR0_EL1

Message ID 20230710192430.1992246-3-jingzhangos@google.com (mailing list archive)
State New, archived
Headers show
Series Enable writable for idregs DFR0,PFR0, MMFR{0,1,2, 3} | expand

Commit Message

Jing Zhang July 10, 2023, 7:24 p.m. UTC 
All valid fields in ID_AA64DFR0_EL1 and ID_DFR0_EL1 are writable
from usrespace with this change.

Signed-off-by: Jing Zhang <jingzhangos@google.com>
---
 arch/arm64/kvm/sys_regs.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c
index c1a5ec1a016e..0160ef9cfe18 100644
--- a/arch/arm64/kvm/sys_regs.c
+++ b/arch/arm64/kvm/sys_regs.c
@@ -1980,7 +1980,7 @@  static const struct sys_reg_desc sys_reg_descs[] = {
 	  .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),
@@ -2029,7 +2029,7 @@  static const struct sys_reg_desc sys_reg_descs[] = {
 	  .get_user = get_id_reg,
 	  .set_user = set_id_aa64dfr0_el1,
 	  .reset = read_sanitised_id_aa64dfr0_el1,
-	  .val = ID_AA64DFR0_EL1_PMUVer_MASK, },
+	  .val = GENMASK(63, 0), },
 	ID_SANITISED(ID_AA64DFR1_EL1),
 	ID_UNALLOCATED(5,2),
 	ID_UNALLOCATED(5,3),