aboutsummaryrefslogtreecommitdiff
path: root/linux-user/safe-syscall.S
diff options
context:
space:
mode:
authorPeter Xu <peterx@redhat.com>2019-01-16 11:08:12 +0800
committerMichael S. Tsirkin <mst@redhat.com>2019-02-05 10:58:33 -0500
commit2a078b1080917dc6143783e1dd645e188d11dc8f (patch)
tree9a46467761c68e07bfe06489780a1f146b4b36c9 /linux-user/safe-syscall.S
parent3f262b26b82cf5930f0c294d289f258a6d3d2528 (diff)
intel_iommu: fix operator in vtd_switch_address_space
When calculating use_iommu, we wanted to first detect whether DMAR is enabled, then check whether PT is enabled if DMAR is enabled. However in the current code we used "&" rather than "&&" so the ordering requirement is lost (instead it'll be an "AND" operation). This could introduce errors dumped in QEMU console when rebooting a guest with both assigned device and vIOMMU, like: qemu-system-x86_64: vtd_dev_to_context_entry: invalid root entry: rsvd=0xf000ff53f000e2c3, val=0xf000ff53f000ff53 (reserved nonzero) Acked-by: Jason Wang <jasowang@redhat.com> Signed-off-by: Peter Xu <peterx@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'linux-user/safe-syscall.S')
0 files changed, 0 insertions, 0 deletions