drm:intel_vgpu_emulate_mmio_write hit error -22 on Ubuntu Qemu #10
Description
I am loading Qemu on gvt linux with latest kernel, and it hit error on any mouse and keyboard stroke.
linux@linux-gvtg:/boot$ cat /proc/cmdline
BOOT_IMAGE=/boot/vmlinuz-4.12.0+ root=UUID=28928046-c655-425a-bd2d-c755d7c6283a ro quiet splash vt.handoff=7 i915.enable_gvt=1 kvm.ignore_msrs=0 intel_iommu=igfx_off drm.debug=0
and dmesg fails with below error:
[1484697.705735] [drm:intel_vgpu_emulate_mmio_write [i915]] ERROR gvt: guest page write error -22, gfn 0x753b6, pa 0x753b69f7, var 0x0, len 1
[1484697.705746] [drm:intel_vgpu_emulate_mmio_write [i915]] ERROR gvt: guest page write error -22, gfn 0x753b6, pa 0x753b69f8, var 0x0, len 1
[1484697.705757] [drm:intel_vgpu_emulate_mmio_write [i915]] ERROR gvt: guest page write error -22, gfn 0x753b6, pa 0x753b69f9, var 0x0, len 1
[1484697.705768] [drm:intel_vgpu_emulate_mmio_write [i915]] ERROR gvt: guest page write error -22, gfn 0x753b6, pa 0x753b69fa, var 0x0, len 1
[1484697.705779] [drm:intel_vgpu_emulate_mmio_write [i915]] ERROR gvt: guest page write error -22, gfn 0x753b6, pa 0x753b69fb, var 0x0, len 1
[1484697.705790] [drm:intel_vgpu_emulate_mmio_write [i915]] ERROR gvt: guest page write error -22, gfn 0x753b6, pa 0x753b69fc, var 0x0, len 1
[1484697.705802] [drm:intel_vgpu_emulate_mmio_write [i915]] ERROR gvt: guest page write error -22, gfn 0x753b6, pa 0x753b69fd, var 0x0, len 1
[1484697.705813] [drm:intel_vgpu_emulate_mmio_write [i915]] ERROR gvt: guest page write error -22, gfn 0x753b6, pa 0x753b69fe, var 0x0, len 1
[1484697.705824] [drm:intel_vgpu_emulate_mmio_write [i915]] ERROR gvt: guest page write error -22, gfn 0x753b6, pa 0x753b69ff, var 0x0, len 1
[1484697.705835] [drm:intel_vgpu_emulate_mmio_write [i915]] ERROR gvt: guest page write error -22, gfn 0x753b6, pa 0x753b6a00, var 0x0, len 1
[1484697.705846] [drm:intel_vgpu_emulate_mmio_write [i915]] ERROR gvt: guest page write error -22, gfn 0x753b6, pa 0x753b6a01, var 0x0, len 1
[1484697.705857] [drm:intel_vgpu_emulate_mmio_write [i915]] ERROR gvt: guest page write error -22, gfn 0x753b6, pa 0x753b6a02, var 0x0, len 1
[1484697.705868] [drm:intel_vgpu_emulate_mmio_write [i915]] ERROR gvt: guest page write error -22, gfn 0x753b6, pa 0x753b6a03, var 0x0, len 1
[1484697.705879] [drm:intel_vgpu_emulate_mmio_write [i915]] ERROR gvt: guest page write error -22, gfn 0x753b6, pa 0x753b6a04, var 0x0, len 1
[1484697.705890] [drm:intel_vgpu_emulate_mmio_write [i915]] ERROR gvt: guest page write error -22, gfn 0x753b6, pa 0x753b6a05, var 0x0, len 1
[1484697.705901] [drm:intel_vgpu_emulate_mmio_write [i915]] ERROR gvt: guest page write error -22, gfn 0x753b6, pa 0x753b6a06, var 0x0, len 1
[1484697.705912] [drm:intel_vgpu_emulate_mmio_write [i915]] ERROR gvt: guest page write error -22, gfn 0x753b6, pa 0x753b6a07, var 0x0, len 1
[1484697.705923] [drm:intel_vgpu_emulate_mmio_write [i915]] ERROR gvt: guest page write error -22, gfn 0x753b6, pa 0x753b6a08, var 0x0, len 1
[1484697.705934] [drm:intel_vgpu_emulate_mmio_write [i915]] ERROR gvt: guest page write error -22, gfn 0x753b6, pa 0x753b6a09, var 0x0, len 1