mok: Add a building option to avoid the vendor_dbx being appended to … - #779
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mok: Add a building option to avoid the vendor_dbx being appended to …#779joeyli wants to merge 1 commit into
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…MokListRT The new building option DISABLE_APPEND_V_DBX_TO_MOKX avoids appending the vendor_dbx to MokListRT. Instead, the vendor_dbx will be exposed through the mok config table space. As the vendor-dbx grows, it caused some problems when writing such a large variable. Some firmwares lie the avaiable space [1], and some even crash [2] for no good reason after the writing of MokListXRT. If your shim and kernel don't rely on MokListXRT to block anything, you can use this building option to expose vendor_dbx through the mok config table instead of appending it to MokListRT. Link: https://bugzilla.suse.com/show_bug.cgi?id=1185261 [1] Link: rhboot#369 (comment) [2] Signed-off-by: Chun-Yi Lee <jlee@suse.com>
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I don't think I have a problem with any of this, but it does lead me to some questions about the direction we should be going:
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…MokListRT
The new building option DISABLE_APPEND_V_DBX_TO_MOKX avoids appending the vendor_dbx to MokListRT. Instead, the vendor_dbx will be exposed through the mok config table space.
As the vendor-dbx grows, it caused some problems when writing such a large variable. Some firmwares lie the avaiable space [1], and some even crash [2] for no good reason after the writing of MokListXRT. If your shim and kernel don't rely on MokListXRT to block anything, you can use this building option to expose vendor_dbx through the mok config table instead of appending it to MokListRT.
Link: https://bugzilla.suse.com/show_bug.cgi?id=1185261 [1]
Link: #369 (comment) [2]