diff options
| author | Zhi Wang | 2017-10-10 11:14:13 +0200 |
|---|---|---|
| committer | Zhenyu Wang | 2017-11-16 04:48:23 +0100 |
| commit | 7422064883398612b5921bf26b15bd9b0dd6c325 (patch) | |
| tree | 1bc6515661e5d22c4f3deeae4d3ba1f197af8c46 | |
| parent | drm/i915/gvt: Let the caller choose if a shadow page should be put into hash ... (diff) | |
| download | kernel-qcow2-linux-7422064883398612b5921bf26b15bd9b0dd6c325.tar.gz kernel-qcow2-linux-7422064883398612b5921bf26b15bd9b0dd6c325.tar.xz kernel-qcow2-linux-7422064883398612b5921bf26b15bd9b0dd6c325.zip | |
drm/i915/gvt: Fix a bug of unexpectedly clear scratch page table
During a vGPU reset, the scratch page table shouldn't be cleared, what
needs to be cleared should be the scratch page.
Signed-off-by: Zhi Wang <zhi.a.wang@intel.com>
| -rw-r--r-- | drivers/gpu/drm/i915/gvt/gtt.c | 9 |
1 files changed, 0 insertions, 9 deletions
diff --git a/drivers/gpu/drm/i915/gvt/gtt.c b/drivers/gpu/drm/i915/gvt/gtt.c index 912d63b2ff44..d47b8b100ac2 100644 --- a/drivers/gpu/drm/i915/gvt/gtt.c +++ b/drivers/gpu/drm/i915/gvt/gtt.c @@ -2395,8 +2395,6 @@ void intel_vgpu_reset_ggtt(struct intel_vgpu *vgpu) */ void intel_vgpu_reset_gtt(struct intel_vgpu *vgpu) { - int i; - ppgtt_free_all_shadow_page(vgpu); /* Shadow pages are only created when there is no page @@ -2406,11 +2404,4 @@ void intel_vgpu_reset_gtt(struct intel_vgpu *vgpu) intel_vgpu_free_mm(vgpu, INTEL_GVT_MM_PPGTT); intel_vgpu_reset_ggtt(vgpu); - - /* clear scratch page for security */ - for (i = GTT_TYPE_PPGTT_PTE_PT; i < GTT_TYPE_MAX; i++) { - if (vgpu->gtt.scratch_pt[i].page != NULL) - memset(page_address(vgpu->gtt.scratch_pt[i].page), - 0, PAGE_SIZE); - } } |