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Commit 3364bf5f authored by Ping Gao's avatar Ping Gao Committed by Zhenyu Wang
Browse files

drm/i915/gvt: Audit the command buffer address 



The command buffer address in context like ring buffer base address
and wa_ctx address need to be audit to make sure they are in the
valid GGTT range.

Signed-off-by: default avatarPing Gao <ping.a.gao@intel.com>
Signed-off-by: default avatarZhenyu Wang <zhenyuw@linux.intel.com>
parent 0de98709

drivers/gpu/drm/i915/gvt/cmd_parser.c

+10 −0
Original line number Diff line number Diff line
@@ -2536,6 +2536,11 @@ static int scan_workload(struct intel_vgpu_workload *workload) 
		gma_head == gma_tail)

		return 0;



	if (!intel_gvt_ggtt_validate_range(s.vgpu, s.ring_start, s.ring_size)) {

		ret = -EINVAL;

		goto out;

	}



	ret = ip_gma_set(&s, gma_head);

	if (ret)

		goto out;
@@ -2579,6 +2584,11 @@ static int scan_wa_ctx(struct intel_shadow_wa_ctx *wa_ctx) 
	s.rb_va = wa_ctx->indirect_ctx.shadow_va;

	s.workload = workload;



	if (!intel_gvt_ggtt_validate_range(s.vgpu, s.ring_start, s.ring_size)) {

		ret = -EINVAL;

		goto out;

	}



	ret = ip_gma_set(&s, gma_head);

	if (ret)

		goto out;