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drm/i915/gvt: Audit the command buffer address

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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: Ping Gao <ping.a.gao@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
This commit is contained in:
Ping Gao 2017-07-04 16:09:58 +08:00 committed by Zhenyu Wang
parent 0de9870989
commit 3364bf5fd0
1 changed files with 10 additions and 0 deletions
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10
drivers/gpu/drm/i915/gvt/cmd_parser.c
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@ -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;