diff options
| author | Marc Zyngier <maz@kernel.org> | 2025-07-14 13:26:28 +0100 |
|---|---|---|
| committer | Oliver Upton <oliver.upton@linux.dev> | 2025-07-15 20:24:29 -0700 |
| commit | 1d14c97145621632caaccf89a45c9b74ad36dab8 (patch) | |
| tree | 902ad32b8e3dfca88a5098a62977488854541a85 | |
| parent | ce7a1cff2e4c4ec185bae25a7c53609407d2c5eb (diff) | |
KVM: arm64: Let GICv3 save/restore honor visibility attribute
The GICv3 save/restore code never needed any visibility attribute,
but that's about to change. Make vgic_v3_has_cpu_sysregs_attr()
check the visibility in case a register is hidden.
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20250714122634.3334816-6-maz@kernel.org
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
| -rw-r--r-- | arch/arm64/kvm/vgic-sys-reg-v3.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/arch/arm64/kvm/vgic-sys-reg-v3.c b/arch/arm64/kvm/vgic-sys-reg-v3.c index 5eacb4b3250a..6f40225c4a3f 100644 --- a/arch/arm64/kvm/vgic-sys-reg-v3.c +++ b/arch/arm64/kvm/vgic-sys-reg-v3.c @@ -341,8 +341,12 @@ static u64 attr_to_id(u64 attr) int vgic_v3_has_cpu_sysregs_attr(struct kvm_vcpu *vcpu, struct kvm_device_attr *attr) { - if (get_reg_by_id(attr_to_id(attr->attr), gic_v3_icc_reg_descs, - ARRAY_SIZE(gic_v3_icc_reg_descs))) + const struct sys_reg_desc *r; + + r = get_reg_by_id(attr_to_id(attr->attr), gic_v3_icc_reg_descs, + ARRAY_SIZE(gic_v3_icc_reg_descs)); + + if (r && !sysreg_hidden(vcpu, r)) return 0; return -ENXIO; |