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authorMarc Zyngier <maz@kernel.org>2021-12-15 17:21:23 +0300
committerMarc Zyngier <maz@kernel.org>2021-12-15 17:21:23 +0300
commit7b6871f670028532430648a175d9e8e72280172a (patch)
tree48b23ca801ff807e94cc1085b6503fb64a824906 /arch/arm64/kvm/vgic
parent94b4a6d52173521b63b11516fe963d651dc520a4 (diff)
parent64a1fbda59f4b14adde7f21cda687e2b9703b7bb (diff)
downloadlinux-7b6871f670028532430648a175d9e8e72280172a.tar.xz
Merge branch kvm-arm64/pkvm-cleanups-5.17 into kvmarm-master/next
* kvm-arm64/pkvm-cleanups-5.17: : . : pKVM cleanups from Quentin Perret: : : This series is a collection of various fixes and cleanups for KVM/arm64 : when running in nVHE protected mode. The first two patches are real : fixes/improvements, the following two are minor cleanups, and the last : two help satisfy my paranoia so they're certainly optional. : . KVM: arm64: pkvm: Make kvm_host_owns_hyp_mappings() robust to VHE KVM: arm64: pkvm: Stub io map functions KVM: arm64: Make __io_map_base static KVM: arm64: Make the hyp memory pool static KVM: arm64: pkvm: Disable GICv2 support KVM: arm64: pkvm: Fix hyp_pool max order Signed-off-by: Marc Zyngier <maz@kernel.org>
Diffstat (limited to 'arch/arm64/kvm/vgic')
-rw-r--r--arch/arm64/kvm/vgic/vgic-v2.c5
-rw-r--r--arch/arm64/kvm/vgic/vgic-v3.c2
2 files changed, 6 insertions, 1 deletions
diff --git a/arch/arm64/kvm/vgic/vgic-v2.c b/arch/arm64/kvm/vgic/vgic-v2.c
index 95a18cec14a3..8e337a0d7817 100644
--- a/arch/arm64/kvm/vgic/vgic-v2.c
+++ b/arch/arm64/kvm/vgic/vgic-v2.c
@@ -345,6 +345,11 @@ int vgic_v2_probe(const struct gic_kvm_info *info)
int ret;
u32 vtr;
+ if (is_protected_kvm_enabled()) {
+ kvm_err("GICv2 not supported in protected mode\n");
+ return -ENXIO;
+ }
+
if (!info->vctrl.start) {
kvm_err("GICH not present in the firmware table\n");
return -ENXIO;
diff --git a/arch/arm64/kvm/vgic/vgic-v3.c b/arch/arm64/kvm/vgic/vgic-v3.c
index 04f62c4b07fb..debad4e6e6c9 100644
--- a/arch/arm64/kvm/vgic/vgic-v3.c
+++ b/arch/arm64/kvm/vgic/vgic-v3.c
@@ -651,7 +651,7 @@ int vgic_v3_probe(const struct gic_kvm_info *info)
} else if (!PAGE_ALIGNED(info->vcpu.start)) {
pr_warn("GICV physical address 0x%llx not page aligned\n",
(unsigned long long)info->vcpu.start);
- } else {
+ } else if (kvm_get_mode() != KVM_MODE_PROTECTED) {
kvm_vgic_global_state.vcpu_base = info->vcpu.start;
kvm_vgic_global_state.can_emulate_gicv2 = true;
ret = kvm_register_vgic_device(KVM_DEV_TYPE_ARM_VGIC_V2);