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authorHaibin Wang <wanghaibin.wang@huawei.com>2014-04-29 14:49:17 +0800
committerChristoffer Dall <christoffer.dall@linaro.org>2014-04-29 02:01:43 -0700
commit30c2117085bc4e05d091cee6eba79f069b41a9cd (patch)
treea07810b547b1070617298406e7e71f0cd2c098d5 /virt
parentf2ae85b2ab3776b9e4e42e5b6fa090f40d396794 (diff)
downloadlinux-30c2117085bc4e05d091cee6eba79f069b41a9cd.tar.bz2
KVM: ARM: vgic: Fix the overlap check action about setting the GICD & GICC base address.
Currently below check in vgic_ioaddr_overlap will always succeed, because the vgic dist base and vgic cpu base are still kept UNDEF after initialization. The code as follows will be return forever. if (IS_VGIC_ADDR_UNDEF(dist) || IS_VGIC_ADDR_UNDEF(cpu)) return 0; So, before invoking the vgic_ioaddr_overlap, it needs to set the corresponding base address firstly. Signed-off-by: Haibin Wang <wanghaibin.wang@huawei.com> Acked-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Diffstat (limited to 'virt')
-rw-r--r--virt/kvm/arm/vgic.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/virt/kvm/arm/vgic.c b/virt/kvm/arm/vgic.c
index f9af48c9eb37..56ff9bebb577 100644
--- a/virt/kvm/arm/vgic.c
+++ b/virt/kvm/arm/vgic.c
@@ -1667,10 +1667,11 @@ static int vgic_ioaddr_assign(struct kvm *kvm, phys_addr_t *ioaddr,
if (addr + size < addr)
return -EINVAL;
+ *ioaddr = addr;
ret = vgic_ioaddr_overlap(kvm);
if (ret)
- return ret;
- *ioaddr = addr;
+ *ioaddr = VGIC_ADDR_UNDEF;
+
return ret;
}