Commit 03806edc authored by Zhenyu Wang's avatar Zhenyu Wang

drm/i915/gvt: Fix shadow context descriptor

We need to be careful to only update addr mode for gvt shadow context
descriptor but keep other valid config. This fixes GPU hang caused by
invalid descriptor submitted for gvt workload.
Signed-off-by: default avatarZhenyu Wang <zhenyuw@linux.intel.com>
parent 5b3cac19
......@@ -169,7 +169,8 @@ static int dispatch_workload(struct intel_vgpu_workload *workload)
gvt_dbg_sched("ring id %d prepare to dispatch workload %p\n",
ring_id, workload);
shadow_ctx->desc_template = workload->ctx_desc.addressing_mode <<
shadow_ctx->desc_template &= ~(0x3 << GEN8_CTX_ADDRESSING_MODE_SHIFT);
shadow_ctx->desc_template |= workload->ctx_desc.addressing_mode <<
GEN8_CTX_ADDRESSING_MODE_SHIFT;
mutex_lock(&dev_priv->drm.struct_mutex);
......
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