From: Marc Zyngier <maz@kernel.org>
To: kvmarm@lists.linux.dev, kvm@vger.kernel.org,
linux-arm-kernel@lists.infradead.org
Cc: Joey Gouly <joey.gouly@arm.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Oliver Upton <oupton@kernel.org>,
Zenghui Yu <yuzenghui@huawei.com>,
Sascha Bischoff <sascha.bischoff@arm.com>,
Mark Brown <broonie@kernel.org>
Subject: [PATCH 14/15] KVM: arm64: Correctly plumb ID_AA64PFR2_EL1 into pkvm idreg handling
Date: Thu, 26 Mar 2026 15:35:29 +0000 [thread overview]
Message-ID: <20260326153530.3981879-15-maz@kernel.org> (raw)
In-Reply-To: <20260326153530.3981879-1-maz@kernel.org>
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@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
next prev parent reply other threads:[~2026-03-26 15:36 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-26 15:35 [PATCH 00/15] KVM: arm64: First batch of vgic-v5 related fixes Marc Zyngier
2026-03-26 15:35 ` [PATCH 01/15] KVM: arm64: vgic: Don't reset cpuif/redist addresses at finalize time Marc Zyngier
2026-03-26 15:35 ` [PATCH 02/15] KVM: arm64: Don't skip per-vcpu NV initialisation Marc Zyngier
2026-03-26 15:35 ` [PATCH 03/15] arm64: Fix field references for ICH_PPI_DVIR[01]_EL2 Marc Zyngier
2026-03-26 15:35 ` [PATCH 04/15] KVM: arm64: Fix writeable mask for ID_AA64PFR2_EL1 Marc Zyngier
2026-03-26 15:35 ` [PATCH 05/15] KVM: arm64: Account for RESx bits in __compute_fgt() Marc Zyngier
2026-03-26 15:35 ` [PATCH 06/15] KVM: arm64: vgic-v5: Hold config_lock while finalizing GICv5 PPIs Marc Zyngier
2026-03-26 15:35 ` [PATCH 07/15] KVM: arm64: vgic-v5: Transfer edge pending state to ICH_PPI_PENDRx_EL2 Marc Zyngier
2026-03-26 15:35 ` [PATCH 08/15] KVM: arm64: vgic-v5: Cast vgic_apr to u32 to avoid undefined behaviours Marc Zyngier
2026-03-26 15:35 ` [PATCH 09/15] KVM: arm64: vgic-v5: align priority comparison with other GICs Marc Zyngier
2026-03-26 15:35 ` [PATCH 10/15] KVM: arm64: vgic-v5: Correctly set dist->ready once initialised Marc Zyngier
2026-03-26 15:35 ` [PATCH 11/15] KVM: arm64: Kill arch_timer_context::direct field Marc Zyngier
2026-03-26 15:35 ` [PATCH 12/15] KVM: arm64: Remove evaluation of timer state in kvm_cpu_has_pending_timer() Marc Zyngier
2026-03-26 15:35 ` [PATCH 13/15] KVM: arm64: Move GICv5 timer PPI validation into timer_irqs_are_valid() Marc Zyngier
2026-03-26 15:35 ` Marc Zyngier [this message]
2026-03-26 15:35 ` [PATCH 15/15] KVM: arm64: Don't advertises GICv3 in ID_PFR1_EL1 if AArch32 isn't supported Marc Zyngier
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20260326153530.3981879-15-maz@kernel.org \
--to=maz@kernel.org \
--cc=broonie@kernel.org \
--cc=joey.gouly@arm.com \
--cc=kvm@vger.kernel.org \
--cc=kvmarm@lists.linux.dev \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=oupton@kernel.org \
--cc=sascha.bischoff@arm.com \
--cc=suzuki.poulose@arm.com \
--cc=yuzenghui@huawei.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox