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Subject: [PATCH 0/2] EFI mixed mode fixes
From: Ard Biesheuvel <ardb+git@google.com>
To: linux-efi@vger.kernel.org
Cc: x86@kernel.org, Ard Biesheuvel <ardb@kernel.org>,
Clayton Craft <clayton@craftyguy.net>
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|
| Series | EFI mixed mode fixes | expand |
From: Ard Biesheuvel <ardb@kernel.org> Two fixes for mixed mode: - run EFI boot services from the firmware's stack, to avoid overruns - don't wipe BSS twice in mixed mode Whether or not this fixes Clayton's issue remains to be seen, but these need to be fixed in any case. Link: https://lkml.kernel.org/r/20240321144541.GD8211%40craftyguy.net Cc: Clayton Craft <clayton@craftyguy.net> Ard Biesheuvel (2): x86/efistub: Call mixed mode boot services on the firmware's stack x86/efistub: Don't clear BSS twice in mixed mode arch/x86/boot/compressed/efi_mixed.S | 10 +++++++++- drivers/firmware/efi/libstub/x86-stub.c | 3 ++- 2 files changed, 11 insertions(+), 2 deletions(-)