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| author | Marc Zyngier <maz@kernel.org> | 2024-05-24 17:19:55 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-06-16 14:41:37 +0300 |
| commit | 5b12ce0b6fd9956c6825f04fb00544ff8d302bd4 (patch) | |
| tree | 38ead154c846370c83b0ad26c5ae15738dc1f7b0 | |
| parent | 4f902f03ef57f9a80b157a6a05f6b77211be9a4a (diff) | |
| download | linux-5b12ce0b6fd9956c6825f04fb00544ff8d302bd4.tar.xz | |
KVM: arm64: Allow AArch32 PSTATE.M to be restored as System mode
commit dfe6d190f38fc5df5ff2614b463a5195a399c885 upstream.
It appears that we don't allow a vcpu to be restored in AArch32
System mode, as we *never* included it in the list of valid modes.
Just add it to the list of allowed modes.
Fixes: 0d854a60b1d7 ("arm64: KVM: enable initialization of a 32bit vcpu")
Cc: stable@vger.kernel.org
Acked-by: Oliver Upton <oliver.upton@linux.dev>
Link: https://lore.kernel.org/r/20240524141956.1450304-3-maz@kernel.org
Signed-off-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | arch/arm64/kvm/guest.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm64/kvm/guest.c b/arch/arm64/kvm/guest.c index 9ee887a9523d..5dbaf3fe9022 100644 --- a/arch/arm64/kvm/guest.c +++ b/arch/arm64/kvm/guest.c @@ -250,6 +250,7 @@ static int set_core_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg) case PSR_AA32_MODE_SVC: case PSR_AA32_MODE_ABT: case PSR_AA32_MODE_UND: + case PSR_AA32_MODE_SYS: if (!vcpu_el1_is_32bit(vcpu)) return -EINVAL; break; |