Don't call QueryVariableInfo() on EFI 1.10 machines #364
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The EFI 1.10 spec (and presumably earlier revisions as well) didn't have RT->QueryVariableInfo(), and on Chris Murphy's MacBookPro8,2 , that memory appears to be initialized randomly. This patch changes it to not call RT->QueryVariableInfo() if the EFI_RUNTIME_SERVICES table's major revision is less than two, and assumes our maximum variable size is 1024 in that case. Signed-off-by: Peter Jones <pjones@redhat.com>
martinezjavier
approved these changes
Apr 15, 2021
|
This fixed boot on MacBookAir 5,2 , too. |
jsetje
approved these changes
Apr 20, 2021
9 tasks
9 tasks
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Looks good to me, tested locally on an Imac6,1. It's broken without this patch, and boots to grub fine after applying it. |
9 tasks
9 tasks
9 tasks
9 tasks
9 tasks
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The EFI 1.10 spec (and presumably earlier revisions as well) didn't have
RT->QueryVariableInfo(), and on Chris Murphy's MacBookPro8,2 , that
memory appears to be initialized randomly.
This patch changes it to not call RT->QueryVariableInfo() if the
EFI_RUNTIME_SERVICES table's major revision is less than two, and
assumes our maximum variable size is 1024 in that case.
Signed-off-by: Peter Jones pjones@redhat.com