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| author | Marc Zyngier <marc.zyngier@arm.com> | 2016-07-17 11:34:53 +0100 |
|---|---|---|
| committer | Marc Zyngier <marc.zyngier@arm.com> | 2016-07-18 18:15:16 +0100 |
| commit | 7e3963a51563d844fcd3bdc13e2847561b15e8de (patch) | |
| tree | c16eb6631d0fb377b487a180b3259e59a6716038 /virt | |
| parent | c0091073dd775d0446a9f88dda8c9a86b64340b2 (diff) | |
| download | lwn-7e3963a51563d844fcd3bdc13e2847561b15e8de.tar.gz lwn-7e3963a51563d844fcd3bdc13e2847561b15e8de.zip | |
KVM: arm64: vgic-its: Fix vgic_its_check_device_id BE handling
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 <marc.zyngier@arm.com>
Diffstat (limited to 'virt')
| -rw-r--r-- | virt/kvm/arm/vgic/vgic-its.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/virt/kvm/arm/vgic/vgic-its.c b/virt/kvm/arm/vgic/vgic-its.c index d6697c4d81ec..2ac5927b1d91 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; |