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* [PATCHv3 0/3] clean up KPTI / SDEI trampoline data alignment
@ 2020-03-19  9:12 ` Rémi Denis-Courmont
  0 siblings, 0 replies; 32+ messages in thread
From: Rémi Denis-Courmont @ 2020-03-19  9:12 UTC (permalink / raw)
  To: Catalin Marinas, Will Deacon, linux-arm-kernel
  Cc: Mark Rutland, James Morse, linux-kernel

	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/




^ permalink raw reply	[flat|nested] 32+ messages in thread

end of thread, other threads:[~2020-03-24 11:23 UTC | newest]

Thread overview: 32+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-03-19  9:12 [PATCHv3 0/3] clean up KPTI / SDEI trampoline data alignment Rémi Denis-Courmont
2020-03-19  9:12 ` Rémi Denis-Courmont
2020-03-19  9:14 ` [PATCH 1/3] arm64: clean up trampoline vector loads Rémi Denis-Courmont
2020-03-19  9:14   ` Rémi Denis-Courmont
2020-03-23 12:07   ` Mark Rutland
2020-03-23 12:07     ` Mark Rutland
2020-03-23 12:08     ` Rémi Denis-Courmont
2020-03-23 12:08       ` Rémi Denis-Courmont
2020-03-23 12:14       ` Mark Rutland
2020-03-23 12:14         ` Mark Rutland
2020-03-23 19:04         ` Catalin Marinas
2020-03-23 19:04           ` Catalin Marinas
2020-03-23 20:42           ` Rémi Denis-Courmont
2020-03-23 20:42             ` Rémi Denis-Courmont
2020-03-24 10:37             ` Catalin Marinas
2020-03-24 10:37               ` Catalin Marinas
2020-03-24 10:52             ` Mark Rutland
2020-03-24 10:52               ` Mark Rutland
2020-03-24 11:23               ` Catalin Marinas
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   ` Rémi Denis-Courmont
2020-03-19  9:14 ` [PATCH 3/3] arm64: reduce trampoline data alignment Rémi Denis-Courmont
2020-03-19  9:14   ` Rémi Denis-Courmont
2020-03-21 13:40   ` Catalin Marinas
2020-03-21 13:41     ` Catalin Marinas
2020-03-23 11:58     ` Mark Rutland
2020-03-23 11:58       ` Mark Rutland
2020-03-19 18:37 ` [PATCHv3 0/3] clean up KPTI / SDEI " Will Deacon
2020-03-19 18:37   ` Will Deacon
2020-03-20 16:54 ` Catalin Marinas
2020-03-20 16:54   ` Catalin Marinas

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