From: "Rémi Denis-Courmont" <remi@remlab.net>
To: Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>,
linux-arm-kernel@lists.infradead.org
Cc: Mark Rutland <mark.rutland@arm.com>,
James Morse <james.morse@arm.com>,
linux-kernel@vger.kernel.org
Subject: [PATCHv3 0/3] clean up KPTI / SDEI trampoline data alignment
Date: Thu, 19 Mar 2020 11:12:56 +0200 [thread overview]
Message-ID: <1938400.7m7sAWtiY1@basile.remlab.net> (raw)
Hi,
The KPTI and SDE trampolines each load a pointer from the same fixmap data
page. This reduces the data alignment to the useful value, and tries to
clarify the assembler code.
Changes since v2:
- Retain alignment even when SDEI is disabled to keep ld happy.
----------------------------------------------------------------
Rémi Denis-Courmont (3):
arm64: clean up trampoline vector loads
arm64/sdei: gather trampolines' .rodata
arm64: reduce trampoline data alignment
arch/arm64/kernel/entry.S | 23 ++++++++++-------------
arch/arm64/mm/mmu.c | 5 ++---
2 files changed, 12 insertions(+), 16 deletions(-)
--
Реми Дёни-Курмон
http://www.remlab.net/
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next reply other threads:[~2020-03-19 9:13 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-19 9:12 Rémi Denis-Courmont [this message]
2020-03-19 9:14 ` [PATCH 1/3] arm64: clean up trampoline vector loads Rémi Denis-Courmont
2020-03-23 12:07 ` Mark Rutland
2020-03-23 12:08 ` Rémi Denis-Courmont
2020-03-23 12:14 ` Mark Rutland
2020-03-23 19:04 ` Catalin Marinas
2020-03-23 20:42 ` Rémi Denis-Courmont
2020-03-24 10:37 ` Catalin Marinas
2020-03-24 10:52 ` Mark Rutland
2020-03-24 11:23 ` Catalin Marinas
2020-03-19 9:14 ` [PATCH 2/3] arm64/sdei: gather trampolines' .rodata Rémi Denis-Courmont
2020-03-19 9:14 ` [PATCH 3/3] arm64: reduce trampoline data alignment Rémi Denis-Courmont
2020-03-21 13:40 ` Catalin Marinas
2020-03-23 11:58 ` Mark Rutland
2020-03-19 18:37 ` [PATCHv3 0/3] clean up KPTI / SDEI " Will Deacon
2020-03-20 16:54 ` Catalin Marinas
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