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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>
This commit is contained in:
Haibin Wang 2014-04-29 14:49:17 +08:00 committed by Christoffer Dall
parent f2ae85b2ab
commit 30c2117085
1 changed files with 3 additions and 2 deletions
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5
virt/kvm/arm/vgic.c
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@ -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;
}