-
Changbin Du authored
When add 'x-no-mmap=on' for vfio-pci option, aperture access in guest is emulated. But the vgpu_aperture_rw() function take wrong offset when do memcpy, since vgpu->gm.aperture_va is not the base of entire aperture. This mistake cause GPU command in guest get lost and so the seqno is not updated in engine HWSP. This patch fix this, and it also move the emulation code to kvmgt. Because only vfio need to emulate it. Put aperture rw to MMIO emulation path breaks assumptions in xengt. v2: Remove PAGE_ALIGN for size (zhenyu) Fixes: f090a00d ("drm/i915/gvt: Add emulation for BAR2 (aperture) with normal file RW approach") Signed-off-by:
Changbin Du <changbin.du@intel.com> Signed-off-by:
Zhi Wang <zhi.a.wang@intel.com> Signed-off-by:
Rodrigo Vivi <rodrigo.vivi@intel.com>
d480b28a