From: Ard Biesheuvel <ardb@kernel.org>
To: linux-arm-kernel@lists.infradead.org
Cc: mark.rutland@arm.com, catalin.marinas@arm.com,
linux-efi@vger.kernel.org, will@kernel.org,
Ard Biesheuvel <ardb@kernel.org>
Subject: [PATCH 0/2] efi/arm64: execute the kernel in place if possible
Date: Thu, 26 Mar 2020 17:59:03 +0100 [thread overview]
Message-ID: <20200326165905.2240-1-ardb@kernel.org> (raw)
Update the relocation logic in the EFI stub for arm64 so it runs the
kernel in place if it was loaded by firmware at an address which allows
doing so. Then, update the PE/COFF header metadata and increase the
section alignment to force the UEFI image loader to honour the minimal
alignment requirement imposed by the kernel proper.
Ard Biesheuvel (2):
efi/libstub/arm64: avoid copying the kernel unnecessarily
efi/arm64: increase the PE/COFF alignment so the kernel can run in
place
arch/arm64/kernel/efi-header.S | 2 +-
arch/arm64/kernel/image-vars.h | 7 +++++++
drivers/firmware/efi/libstub/arm64-stub.c | 9 +++++++++
3 files changed, 17 insertions(+), 1 deletion(-)
--
2.17.1
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next reply other threads:[~2020-03-26 16:59 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-26 16:59 Ard Biesheuvel [this message]
2020-03-26 16:59 ` [PATCH 1/2] efi/libstub/arm64: avoid copying the kernel unnecessarily Ard Biesheuvel
2020-03-26 16:59 ` [PATCH 2/2] efi/arm64: increase the PE/COFF alignment so the kernel can run in place Ard Biesheuvel
2020-03-28 14:06 ` Arvind Sankar
2020-03-28 14:10 ` Ard Biesheuvel
2020-03-27 13:19 ` [PATCH 0/2] efi/arm64: execute the kernel in place if possible Jonathan Cameron
2020-03-27 16:39 ` Ard Biesheuvel
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