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KVM: arm64: Don't skip per-vcpu NV initialisation

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Some GICv5-related rework have resulted in the NV sanitisation of
registers being skipped for secondary vcpus, which is a pretty bad
idea.

Hoist the NV init early so that it is always executed.

Reviewed-by: Sascha Bischoff <sascha.bischoff@arm.com>
Fixes: cbd8c958be ("KVM: arm64: Return early from kvm_finalize_sys_regs() if guest has run")
Link: https://sashiko.dev/#/patchset/20260319154937.3619520-1-sascha.bischoff%40arm.com
Link: https://patch.msgid.link/20260401103611.357092-3-maz@kernel.org
Signed-off-by: Marc Zyngier <maz@kernel.org>
This commit is contained in:
Marc Zyngier 2026-04-01 11:35:57 +01:00
parent ecc7f02499
commit d82d09d5ba
1 changed files with 6 additions and 6 deletions
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12
arch/arm64/kvm/sys_regs.c
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@ -5772,6 +5772,12 @@ int kvm_finalize_sys_regs(struct kvm_vcpu *vcpu)
guard(mutex)(&kvm->arch.config_lock);
if (vcpu_has_nv(vcpu)) {
int ret = kvm_init_nv_sysregs(vcpu);
if (ret)
return ret;
}
if (kvm_vm_has_ran_once(kvm))
return 0;
@ -5820,12 +5826,6 @@ int kvm_finalize_sys_regs(struct kvm_vcpu *vcpu)
kvm_vgic_finalize_idregs(kvm);
}
if (vcpu_has_nv(vcpu)) {
int ret = kvm_init_nv_sysregs(vcpu);
if (ret)
return ret;
}
return 0;
}