[PATCH v4 10/20] KVM: arm64: expose ID_AA64MMFR3_EL1 to guests

Joey Gouly joey.gouly at arm.com
Tue Jun 6 07:58:49 PDT 2023


Now that KVM context switches the appropriate registers, expose ID_AA64MMFR3_EL1
to guests to allow them to use the new features.

Signed-off-by: Joey Gouly <joey.gouly at arm.com>
Cc: Marc Zyngier <maz at kernel.org>
Cc: Oliver Upton <oliver.upton at linux.dev>
Cc: James Morse <james.morse at arm.com>
Cc: Suzuki K Poulose <suzuki.poulose at arm.com>
Cc: Zenghui Yu <yuzenghui at huawei.com>
Cc: Catalin Marinas <catalin.marinas at arm.com>
Cc: Will Deacon <will at kernel.org>
Acked-by: Catalin Marinas <catalin.marinas at arm.com>
Reviewed-by: Marc Zyngier <maz at kernel.org>
---
 arch/arm64/kvm/sys_regs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c
index 2a0125060911..a2e7f53a65ae 100644
--- a/arch/arm64/kvm/sys_regs.c
+++ b/arch/arm64/kvm/sys_regs.c
@@ -1873,7 +1873,7 @@ static const struct sys_reg_desc sys_reg_descs[] = {
 	ID_SANITISED(ID_AA64MMFR0_EL1),
 	ID_SANITISED(ID_AA64MMFR1_EL1),
 	ID_SANITISED(ID_AA64MMFR2_EL1),
-	ID_UNALLOCATED(7,3),
+	ID_SANITISED(ID_AA64MMFR3_EL1),
 	ID_UNALLOCATED(7,4),
 	ID_UNALLOCATED(7,5),
 	ID_UNALLOCATED(7,6),
-- 
2.25.1




More information about the linux-arm-kernel mailing list