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path: root/virt/kvm/arm/vgic/vgic-v3.c
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Diffstat (limited to 'virt/kvm/arm/vgic/vgic-v3.c')
-rw-r--r--virt/kvm/arm/vgic/vgic-v3.c20
1 files changed, 12 insertions, 8 deletions
diff --git a/virt/kvm/arm/vgic/vgic-v3.c b/virt/kvm/arm/vgic/vgic-v3.c
index c7423f3768e5..56e6e903d998 100644
--- a/virt/kvm/arm/vgic/vgic-v3.c
+++ b/virt/kvm/arm/vgic/vgic-v3.c
@@ -427,6 +427,9 @@ bool vgic_v3_check_base(struct kvm *kvm)
{
struct vgic_dist *d = &kvm->arch.vgic;
gpa_t redist_size = KVM_VGIC_V3_REDIST_SIZE;
+ struct vgic_redist_region *rdreg =
+ list_first_entry(&d->rd_regions,
+ struct vgic_redist_region, list);
redist_size *= atomic_read(&kvm->online_vcpus);
@@ -434,18 +437,17 @@ bool vgic_v3_check_base(struct kvm *kvm)
d->vgic_dist_base + KVM_VGIC_V3_DIST_SIZE < d->vgic_dist_base)
return false;
- if (!IS_VGIC_ADDR_UNDEF(d->vgic_redist_base) &&
- d->vgic_redist_base + redist_size < d->vgic_redist_base)
+ if (rdreg && (rdreg->base + redist_size < rdreg->base))
return false;
/* Both base addresses must be set to check if they overlap */
- if (IS_VGIC_ADDR_UNDEF(d->vgic_dist_base) ||
- IS_VGIC_ADDR_UNDEF(d->vgic_redist_base))
+ if (IS_VGIC_ADDR_UNDEF(d->vgic_dist_base) || !rdreg)
return true;
- if (d->vgic_dist_base + KVM_VGIC_V3_DIST_SIZE <= d->vgic_redist_base)
+ if (d->vgic_dist_base + KVM_VGIC_V3_DIST_SIZE <= rdreg->base)
return true;
- if (d->vgic_redist_base + redist_size <= d->vgic_dist_base)
+
+ if (rdreg->base + redist_size <= d->vgic_dist_base)
return true;
return false;
@@ -455,12 +457,14 @@ int vgic_v3_map_resources(struct kvm *kvm)
{
int ret = 0;
struct vgic_dist *dist = &kvm->arch.vgic;
+ struct vgic_redist_region *rdreg =
+ list_first_entry(&dist->rd_regions,
+ struct vgic_redist_region, list);
if (vgic_ready(kvm))
goto out;
- if (IS_VGIC_ADDR_UNDEF(dist->vgic_dist_base) ||
- IS_VGIC_ADDR_UNDEF(dist->vgic_redist_base)) {
+ if (IS_VGIC_ADDR_UNDEF(dist->vgic_dist_base) || !rdreg) {
kvm_err("Need to set vgic distributor addresses first\n");
ret = -ENXIO;
goto out;