Commit 1ed511fb authored by Xiang Liu's avatar Xiang Liu Committed by Alex Deucher
Browse files

drm/amdgpu: Check VF critical region before RAS poison injection 



Check VF critical region before RAS poison injection to ensure that the
poison injection will not hit the VF critical region.

Signed-off-by: default avatarXiang Liu <xiang.liu@amd.com>
Reviewed-by: default avatarShravan Kumar Gande <Shravankumar.Gande@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 4bfa8609

drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c

+7 −0
Original line number Diff line number Diff line
@@ -219,10 +219,17 @@ static int amdgpu_check_address_validity(struct amdgpu_device *adev, 
	struct amdgpu_vram_block_info blk_info;

	uint64_t page_pfns[32] = {0};

	int i, ret, count;

	bool hit = false;



	if (amdgpu_ip_version(adev, UMC_HWIP, 0) < IP_VERSION(12, 0, 0))

		return 0;



	if (amdgpu_sriov_vf(adev)) {

		if (amdgpu_virt_check_vf_critical_region(adev, address, &hit))

			return -EPERM;

		return hit ? -EACCES : 0;

	}



	if ((address >= adev->gmc.mc_vram_size) ||

	    (address >= RAS_UMC_INJECT_ADDR_LIMIT))

		return -EFAULT;