summaryrefslogtreecommitdiff
path: root/virt/kvm/arm/vgic/vgic-init.c
diff options
context:
space:
mode:
authorEric Auger <eric.auger@redhat.com>2018-05-22 10:55:08 +0300
committerMarc Zyngier <marc.zyngier@arm.com>2018-05-25 14:29:26 +0300
commitdbd9733ab6742dfb7d4f6c49e7d412d4e792d8be (patch)
tree1864d271a760667d958b2d54a925b64f42aec7c0 /virt/kvm/arm/vgic/vgic-init.c
parentd6c77bd19c0f755dc603bf26a0bbc2d44dcd8625 (diff)
downloadlinux-dbd9733ab6742dfb7d4f6c49e7d412d4e792d8be.tar.xz
KVM: arm/arm64: Replace the single rdist region by a list
At the moment KVM supports a single rdist region. We want to support several separate rdist regions so let's introduce a list of them. This patch currently only cares about a single entry in this list as the functionality to register several redist regions is not yet there. So this only translates the existing code into something functionally similar using that new data struct. The redistributor region handle is stored in the vgic_cpu structure to allow later computation of the TYPER last bit. Signed-off-by: Eric Auger <eric.auger@redhat.com> Reviewed-by: Christoffer Dall <christoffer.dall@arm.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Diffstat (limited to 'virt/kvm/arm/vgic/vgic-init.c')
-rw-r--r--virt/kvm/arm/vgic/vgic-init.c16
1 files changed, 14 insertions, 2 deletions
diff --git a/virt/kvm/arm/vgic/vgic-init.c b/virt/kvm/arm/vgic/vgic-init.c
index 9a5aed7eecfd..8901b2d8fca1 100644
--- a/virt/kvm/arm/vgic/vgic-init.c
+++ b/virt/kvm/arm/vgic/vgic-init.c
@@ -167,8 +167,11 @@ int kvm_vgic_create(struct kvm *kvm, u32 type)
kvm->arch.vgic.vgic_model = type;
kvm->arch.vgic.vgic_dist_base = VGIC_ADDR_UNDEF;
- kvm->arch.vgic.vgic_cpu_base = VGIC_ADDR_UNDEF;
- kvm->arch.vgic.vgic_redist_base = VGIC_ADDR_UNDEF;
+
+ if (type == KVM_DEV_TYPE_ARM_VGIC_V2)
+ kvm->arch.vgic.vgic_cpu_base = VGIC_ADDR_UNDEF;
+ else
+ INIT_LIST_HEAD(&kvm->arch.vgic.rd_regions);
out_unlock:
for (; vcpu_lock_idx >= 0; vcpu_lock_idx--) {
@@ -303,6 +306,7 @@ out:
static void kvm_vgic_dist_destroy(struct kvm *kvm)
{
struct vgic_dist *dist = &kvm->arch.vgic;
+ struct vgic_redist_region *rdreg, *next;
dist->ready = false;
dist->initialized = false;
@@ -311,6 +315,14 @@ static void kvm_vgic_dist_destroy(struct kvm *kvm)
dist->spis = NULL;
dist->nr_spis = 0;
+ if (kvm->arch.vgic.vgic_model == KVM_DEV_TYPE_ARM_VGIC_V3) {
+ list_for_each_entry_safe(rdreg, next, &dist->rd_regions, list) {
+ list_del(&rdreg->list);
+ kfree(rdreg);
+ }
+ INIT_LIST_HEAD(&dist->rd_regions);
+ }
+
if (vgic_supports_direct_msis(kvm))
vgic_v4_teardown(kvm);
}