diff options
Diffstat (limited to 'drivers/gpu/drm/i915/gvt/mmio.c')
| -rw-r--r-- | drivers/gpu/drm/i915/gvt/mmio.c | 53 |
1 files changed, 0 insertions, 53 deletions
diff --git a/drivers/gpu/drm/i915/gvt/mmio.c b/drivers/gpu/drm/i915/gvt/mmio.c index b18a8bed6c18..562b5ad857a4 100644 --- a/drivers/gpu/drm/i915/gvt/mmio.c +++ b/drivers/gpu/drm/i915/gvt/mmio.c @@ -117,25 +117,6 @@ static void failsafe_emulate_mmio_rw(struct intel_vgpu *vgpu, uint64_t pa, else memcpy(pt, p_data, bytes); - } else if (atomic_read(&vgpu->gtt.n_tracked_guest_page)) { - struct intel_vgpu_page_track *t; - - /* Since we enter the failsafe mode early during guest boot, - * guest may not have chance to set up its ppgtt table, so - * there should not be any wp pages for guest. Keep the wp - * related code here in case we need to handle it in furture. - */ - t = intel_vgpu_find_tracked_page(vgpu, pa >> PAGE_SHIFT); - if (t) { - /* remove write protection to prevent furture traps */ - intel_vgpu_clean_page_track(vgpu, t); - if (read) - intel_gvt_hypervisor_read_gpa(vgpu, pa, - p_data, bytes); - else - intel_gvt_hypervisor_write_gpa(vgpu, pa, - p_data, bytes); - } } mutex_unlock(&gvt->lock); } @@ -168,23 +149,6 @@ int intel_vgpu_emulate_mmio_read(struct intel_vgpu *vgpu, uint64_t pa, goto out; } - if (atomic_read(&vgpu->gtt.n_tracked_guest_page)) { - struct intel_vgpu_page_track *t; - - t = intel_vgpu_find_tracked_page(vgpu, pa >> PAGE_SHIFT); - if (t) { - ret = intel_gvt_hypervisor_read_gpa(vgpu, pa, - p_data, bytes); - if (ret) { - gvt_vgpu_err("guest page read error %d, " - "gfn 0x%lx, pa 0x%llx, var 0x%x, len %d\n", - ret, t->gfn, pa, *(u32 *)p_data, - bytes); - } - goto out; - } - } - offset = intel_vgpu_gpa_to_mmio_offset(vgpu, pa); if (WARN_ON(bytes > 8)) @@ -263,23 +227,6 @@ int intel_vgpu_emulate_mmio_write(struct intel_vgpu *vgpu, uint64_t pa, goto out; } - if (atomic_read(&vgpu->gtt.n_tracked_guest_page)) { - struct intel_vgpu_page_track *t; - - t = intel_vgpu_find_tracked_page(vgpu, pa >> PAGE_SHIFT); - if (t) { - ret = t->handler(t, pa, p_data, bytes); - if (ret) { - gvt_err("guest page write error %d, " - "gfn 0x%lx, pa 0x%llx, " - "var 0x%x, len %d\n", - ret, t->gfn, pa, - *(u32 *)p_data, bytes); - } - goto out; - } - } - offset = intel_vgpu_gpa_to_mmio_offset(vgpu, pa); if (WARN_ON(bytes > 8)) |