Commit a3c4a00d authored by Oliver Upton's avatar Oliver Upton
Browse files

KVM: arm64: Advertise support for FEAT_DoubleFault2 



KVM's external abort injection now respects the exception routing
wreckage due to FEAT_DoubleFault2. Advertise the feature.

Reviewed-by: default avatarMarc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20250708172532.1699409-23-oliver.upton@linux.dev


Signed-off-by: default avatarOliver Upton <oliver.upton@linux.dev>
parent 075c2dc7

arch/arm64/kvm/sys_regs.c

+0 −2
Original line number Diff line number Diff line
@@ -1613,7 +1613,6 @@ static u64 __kvm_read_sanitised_id_reg(const struct kvm_vcpu *vcpu, 
		val &= ~ARM64_FEATURE_MASK(ID_AA64PFR1_EL1_GCS);

		val &= ~ARM64_FEATURE_MASK(ID_AA64PFR1_EL1_THE);

		val &= ~ARM64_FEATURE_MASK(ID_AA64PFR1_EL1_MTEX);

		val &= ~ARM64_FEATURE_MASK(ID_AA64PFR1_EL1_DF2);

		val &= ~ARM64_FEATURE_MASK(ID_AA64PFR1_EL1_PFAR);

		val &= ~ARM64_FEATURE_MASK(ID_AA64PFR1_EL1_MPAM_frac);

		break;
@@ -2884,7 +2883,6 @@ static const struct sys_reg_desc sys_reg_descs[] = { 
		      ID_AA64PFR0_EL1_FP)),

	ID_FILTERED(ID_AA64PFR1_EL1, id_aa64pfr1_el1,

				     ~(ID_AA64PFR1_EL1_PFAR |

				       ID_AA64PFR1_EL1_DF2 |

				       ID_AA64PFR1_EL1_MTEX |

				       ID_AA64PFR1_EL1_THE |

				       ID_AA64PFR1_EL1_GCS |