The ITS tables are stored in LE format. If the host is reading a L1 table entry to check its validity, it must convert it to the CPU endianness.
Signed-off-by: Marc Zyngier <[email protected]> --- virt/kvm/arm/vgic/vgic-its.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/virt/kvm/arm/vgic/vgic-its.c b/virt/kvm/arm/vgic/vgic-its.c index d6697c4..2ac5927 100644 --- a/virt/kvm/arm/vgic/vgic-its.c +++ b/virt/kvm/arm/vgic/vgic-its.c @@ -707,6 +707,8 @@ static bool vgic_its_check_device_id(struct kvm *kvm, struct vgic_its *its, &indirect_ptr, sizeof(indirect_ptr))) return false; + indirect_ptr = le64_to_cpu(indirect_ptr); + /* check the valid bit of the first level entry */ if (!(indirect_ptr & BIT_ULL(63))) return false; -- 2.1.4 _______________________________________________ kvmarm mailing list [email protected] https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
