From: Haibin Wang <wanghaibin.wang@xxxxxxxxxx> 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@xxxxxxxxxx> --- virt/kvm/arm/vgic.c | 7 +++++-- 1 files changed, 5 insertions(+), 2 deletions(-) diff --git a/virt/kvm/arm/vgic.c b/virt/kvm/arm/vgic.c index 3e15825..7ba3751 100644 --- a/virt/kvm/arm/vgic.c +++ b/virt/kvm/arm/vgic.c @@ -1667,10 +1667,13 @@ 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) + if (ret){ + *ioaddr = VGIC_ADDR_UNDEF; return ret; - *ioaddr = addr; + } + return ret; } -- 1.7.1 _______________________________________________ kvmarm mailing list kvmarm@xxxxxxxxxxxxxxxxxxxxx https://lists.cs.columbia.edu/mailman/listinfo/kvmarm