Messages in this thread Patch in this message | | | From | Jithu Joseph <> | Subject | [PATCH v2 6/9] platform/x86/intel/ifs: Metadata validation for start_chunk | Date | Fri, 22 Sep 2023 16:26:03 -0700 |
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Add an additional check to validate IFS image metadata field prior to loading the test image.
If start_chunk is not a multiple of chunks_per_stride error out.
Signed-off-by: Jithu Joseph <jithu.joseph@intel.com> Reviewed-by: Tony Luck <tony.luck@intel.com> Tested-by: Pengfei Xu <pengfei.xu@intel.com> --- drivers/platform/x86/intel/ifs/load.c | 7 +++++++ 1 file changed, 7 insertions(+)
diff --git a/drivers/platform/x86/intel/ifs/load.c b/drivers/platform/x86/intel/ifs/load.c index b09106034fac..c92d313b921f 100644 --- a/drivers/platform/x86/intel/ifs/load.c +++ b/drivers/platform/x86/intel/ifs/load.c @@ -291,6 +291,13 @@ static int validate_ifs_metadata(struct device *dev) return ret; } + if (ifs_meta->chunks_per_stride != 0 && + (ifs_meta->starting_chunk % ifs_meta->chunks_per_stride)) { + dev_warn(dev, "Starting chunk num %d not a multiple of chunks_per_stride %d\n", + ifs_meta->starting_chunk, ifs_meta->chunks_per_stride); + return ret; + } + return 0; } -- 2.25.1
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