This lock is used during register accessing in SRIOV guest.
The register accessing could happen both in irq enabled and
irq disabled cases. Always use irq-safe lock.
Signed-off-by: NPixel Ding <Pixel.Ding@amd.com>
Reviewed-by: NChristian König <christian.koenig@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>