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authorMatthew Garrett <matthew.garrett@nebula.com>2013-04-15 13:09:46 -0700
committerMatt Fleming <matt.fleming@intel.com>2013-04-15 21:31:09 +0100
commitcc5a080c5d40c36089bb08a8a16fa3fc7047fe0f (patch)
treebd3160fc5b3ce71036d5e218ecd5e3dbf1632d02 /samples
parent0635eb8a54cf0fea64b174bb68bc36b9c3d622db (diff)
downloadblackbird-obmc-linux-cc5a080c5d40c36089bb08a8a16fa3fc7047fe0f.tar.gz
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efi: Pass boot services variable info to runtime code
EFI variables can be flagged as being accessible only within boot services. This makes it awkward for us to figure out how much space they use at runtime. In theory we could figure this out by simply comparing the results from QueryVariableInfo() to the space used by all of our variables, but that fails if the platform doesn't garbage collect on every boot. Thankfully, calling QueryVariableInfo() while still inside boot services gives a more reliable answer. This patch passes that information from the EFI boot stub up to the efi platform code. Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com> Signed-off-by: Matt Fleming <matt.fleming@intel.com>
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