[PATCH 14/15] KVM: arm64: Correctly plumb ID_AA64PFR2_EL1 into pkvm idreg handling
Marc Zyngier
maz at kernel.org
Thu Mar 26 08:35:29 PDT 2026
While we now compute ID_AA64PFR2_EL1 to a glorious 0, we never use
that data and instead return the 0 that corresponds to an allocated
idreg. Not a big deal, but we might as well be consistent.
Fixes: 5aefaf11f9af5 ("KVM: arm64: gic: Hide GICv5 for protected guests")
Link: https://sashiko.dev/#/patchset/20260319154937.3619520-1-sascha.bischoff%40arm.com
Signed-off-by: Marc Zyngier <maz at kernel.org>
---
arch/arm64/kvm/hyp/nvhe/sys_regs.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm64/kvm/hyp/nvhe/sys_regs.c b/arch/arm64/kvm/hyp/nvhe/sys_regs.c
index b40fd01ebf329..be6f420388a14 100644
--- a/arch/arm64/kvm/hyp/nvhe/sys_regs.c
+++ b/arch/arm64/kvm/hyp/nvhe/sys_regs.c
@@ -439,7 +439,7 @@ static const struct sys_reg_desc pvm_sys_reg_descs[] = {
/* CRm=4 */
AARCH64(SYS_ID_AA64PFR0_EL1),
AARCH64(SYS_ID_AA64PFR1_EL1),
- ID_UNALLOCATED(4,2),
+ AARCH64(SYS_ID_AA64PFR2_EL1),
ID_UNALLOCATED(4,3),
AARCH64(SYS_ID_AA64ZFR0_EL1),
ID_UNALLOCATED(4,5),
--
2.47.3
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