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KVM: arm64: gic-v5: Hide FEAT_GCIE from NV GICv5 guests

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Currently, NV guests are not supported with GICv5. Therefore, make
sure that FEAT_GCIE is always hidden from such guests.

Signed-off-by: Sascha Bischoff <sascha.bischoff@arm.com>
Reviewed-by: Jonathan Cameron <jonathan.cameron@huawei.com>
Link: https://patch.msgid.link/20260319154937.3619520-35-sascha.bischoff@arm.com
Signed-off-by: Marc Zyngier <maz@kernel.org>
This commit is contained in:
Sascha Bischoff 2026-03-19 15:58:33 +00:00 committed by Marc Zyngier
parent 5aefaf11f9
commit 61d4ad5183
1 changed files with 5 additions and 0 deletions
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5
arch/arm64/kvm/nested.c
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@ -1558,6 +1558,11 @@ u64 limit_nv_id_reg(struct kvm *kvm, u32 reg, u64 val)
ID_AA64PFR1_EL1_MTE);
break;
case SYS_ID_AA64PFR2_EL1:
/* GICv5 is not yet supported for NV */
val &= ~ID_AA64PFR2_EL1_GCIE;
break;
case SYS_ID_AA64MMFR0_EL1:
/* Hide ExS, Secure Memory */
val &= ~(ID_AA64MMFR0_EL1_EXS |