Commit 0a5d2843 authored by Marc Zyngier's avatar Marc Zyngier
Browse files

KVM: arm64: nv: Expose FGT to nested guests 



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

Reviewed-by: default avatarEric Auger <eric.auger@redhat.com>
Signed-off-by: default avatarMarc Zyngier <maz@kernel.org>
Reviewed-by: default avatarJing Zhang <jingzhangos@google.com>
Link: https://lore.kernel.org/r/20230815183903.2735724-27-maz@kernel.org
parent d4d2dacc

arch/arm64/kvm/nested.c

+3 −2
Original line number Diff line number Diff line
@@ -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)	|