Subject: [PATCH 14/15] KVM: arm64: Correctly plumb ID_AA64PFR2_EL1 into pkvm idreg handling

From: Marc Zyngier <[email-masked]>
Date: Thu, 26 Mar 2026 15:35:29 +0000

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 <[email-masked]>
---
 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