KVM: arm64: nv: Advertise support for PAuth

Now that we (hopefully) correctly handle ERETAx, drop the masking
of the PAuth feature (something that was not even complete, as
APA3 and AGA3 were still exposed).

Reviewed-by: Joey Gouly <joey.gouly@arm.com>
Reviewed-by: Oliver Upton <oliver.upton@linux.dev>
Link: https://lore.kernel.org/r/20240419102935.1935571-15-maz@kernel.org
Signed-off-by: Marc Zyngier <maz@kernel.org>

diff --git a/arch/arm64/kvm/nested.c b/arch/arm64/kvm/nested.c
index ced30c90521a02713a4e0e06c1d7b1430df55ea6..6813c7c7f00ab2eedf9d04a9a84bfb5f4858ca77 100644 (file)
--- a/arch/arm64/kvm/nested.c
+++ b/arch/arm64/kvm/nested.c
@@ -35,13 +35,9 @@ static u64 limit_nv_id_reg(u32 id, u64 val)
                break;
 
        case SYS_ID_AA64ISAR1_EL1:
-               /* Support everything but PtrAuth and Spec Invalidation */
+               /* Support everything but Spec Invalidation */
                val &= ~(GENMASK_ULL(63, 56)    |
-                        NV_FTR(ISAR1, SPECRES) |
-                        NV_FTR(ISAR1, GPI)     |
-                        NV_FTR(ISAR1, GPA)     |
-                        NV_FTR(ISAR1, API)     |
-                        NV_FTR(ISAR1, APA));
+                        NV_FTR(ISAR1, SPECRES));
                break;
 
        case SYS_ID_AA64PFR0_EL1: