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KVM: arm64: nv: Expose FGT to nested guests

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Now that we have FGT support, expose the feature to NV guests.

Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Jing Zhang <jingzhangos@google.com>
Link: https://lore.kernel.org/r/20230815183903.2735724-27-maz@kernel.org
This commit is contained in:
Marc Zyngier
2023-08-15 19:39:00 +01:00
parent d4d2dacc7c
commit 0a5d28433a
1 changed files with 3 additions and 2 deletions
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5
arch/arm64/kvm/nested.c
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@@ -71,8 +71,9 @@ void access_nested_id_reg(struct kvm_vcpu *v, struct sys_reg_params *p,
break;
case SYS_ID_AA64MMFR0_EL1:
/* Hide ECV, FGT, ExS, Secure Memory */
val &= ~(GENMASK_ULL(63, 43) |
/* Hide ECV, ExS, Secure Memory */
val &= ~(NV_FTR(MMFR0, ECV) |
NV_FTR(MMFR0, EXS) |
NV_FTR(MMFR0, TGRAN4_2) |
NV_FTR(MMFR0, TGRAN16_2) |
NV_FTR(MMFR0, TGRAN64_2) |