diff mbox series

[v4,2/4] KVM: arm64: Enable writable for ID_DFR0_EL1

Message ID 20230607194554.87359-3-jingzhangos@google.com (mailing list archive)
State New, archived
Headers show
Series Enable writable for idregs DFR0,PFR0, MMFR{0,1,2} | expand

Commit Message

Jing Zhang June 7, 2023, 7:45 p.m. UTC 
All valid fields in ID_DFR0_EL1 are writable from usrespace with this
change.

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

Patch

diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c
index a6299c796d03..3964a85a89fe 100644
--- a/arch/arm64/kvm/sys_regs.c
+++ b/arch/arm64/kvm/sys_regs.c
@@ -2017,7 +2017,7 @@  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),