Messages in this thread Patch in this message | | | From | Jithu Joseph <> | Subject | [PATCH v3 6/9] platform/x86/intel/ifs: Metadata validation for start_chunk | Date | Wed, 4 Oct 2023 12:00:09 -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> --- - changed the dev_warn printk format specifiers (Ilpo Järvinen)
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 582f1801aaaa..959b1878cae6 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 && + (ifs_meta->starting_chunk % ifs_meta->chunks_per_stride != 0)) { + dev_warn(dev, "Starting chunk num %u not a multiple of chunks_per_stride %u\n", + ifs_meta->starting_chunk, ifs_meta->chunks_per_stride); + return ret; + } + return 0; } -- 2.25.1
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