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

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

Signed-off-by: Xiang Liu <xiang.liu@amd.com>
Reviewed-by: Shravan Kumar Gande <Shravankumar.Gande@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Xiang Liu 2025-08-19 13:06:24 +08:00 committed by Alex Deucher
parent 4bfa860993
commit 1ed511fb76
1 changed files with 7 additions and 0 deletions
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7
drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
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@ -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;