KVM: arm64: Don't advertises GICv3 in ID_PFR1_EL1 if AArch32 isn't supported

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Although the AArch32 ID regs are architecturally UNKNOWN when AArch32
isn't supported at any EL, KVM makes a point in making them RAZ.

Therefore, advertising GICv3 in ID_PFR1_EL1 must be gated on AArch32
being supported at least at EL0.

Reviewed-by: Sascha Bischoff <sascha.bischoff@arm.com>
Fixes: a258a383b9 ("KVM: arm64: gic-v5: Sanitize ID_AA64PFR2_EL1.GCIE")
Reported-by: Mark Brown <broonie@kernel.org>
Tested-by: Mark Brown <broonie@kernel.org>
Link: https://patch.msgid.link/20260401103611.357092-16-maz@kernel.org
Signed-off-by: Marc Zyngier <maz@kernel.org>

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Marc Zyngier 2026-04-01 11:36:10 +01:00

parent be46a408f3

commit f4626281c6

1 changed files with 2 additions and 1 deletions

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arch/arm64/kvm/vgic/vgic-init.c

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