[PATCH 4/9] KVM: arm/arm64: vgic: Reset base address on kvm_vgic_dist_destroy()

From: Eric Auger
Date: Sat Dec 12 2020 - 13:55:23 EST


On vgic_dist_destroy(), the addresses are not reset. However for
kvm selftest purpose this would allow to continue the test execution
even after a failure when running KVM_RUN. So let's reset the
base addresses.

Signed-off-by: Eric Auger <eric.auger@xxxxxxxxxx>
---
arch/arm64/kvm/vgic/vgic-init.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/kvm/vgic/vgic-init.c b/arch/arm64/kvm/vgic/vgic-init.c
index 32e32d67a127..6147bed56b1b 100644
--- a/arch/arm64/kvm/vgic/vgic-init.c
+++ b/arch/arm64/kvm/vgic/vgic-init.c
@@ -335,14 +335,16 @@ static void kvm_vgic_dist_destroy(struct kvm *kvm)
kfree(dist->spis);
dist->spis = NULL;
dist->nr_spis = 0;
+ dist->vgic_dist_base = VGIC_ADDR_UNDEF;

- if (kvm->arch.vgic.vgic_model == KVM_DEV_TYPE_ARM_VGIC_V3) {
+ if (dist->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);
- }
+ } else
+ kvm->arch.vgic.vgic_cpu_base = VGIC_ADDR_UNDEF;

if (vgic_has_its(kvm))
vgic_lpi_translation_cache_destroy(kvm);
@@ -362,6 +364,7 @@ void kvm_vgic_vcpu_destroy(struct kvm_vcpu *vcpu)
vgic_flush_pending_lpis(vcpu);

INIT_LIST_HEAD(&vgic_cpu->ap_list_head);
+ vgic_cpu->rd_iodev.base_addr = VGIC_ADDR_UNDEF;
}

/* To be called with kvm->lock held */
--
2.21.3