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From: Andrew Cooper <andrew.cooper3@citrix.com>
To: Xen-devel <xen-devel@lists.xen.org>
Cc: Andrew Cooper <andrew.cooper3@citrix.com>
Subject: [PATCH 0/7] x86/alternatives: Support for automatic padding calculations
Date: Mon, 12 Feb 2018 11:23:00 +0000	[thread overview]
Message-ID: <1518434587-22827-1-git-send-email-andrew.cooper3@citrix.com> (raw)

This is the end result of a lot of work I started during the Spectre/Meltdown
embargo window, and deferred because it was taking too long.  It finally
resolves the explict padding calculations for the SPEC_CTRL alternatives.

Andrew Cooper (7):
  x86/alt: Drop unused alternative infrastructure
  x86/alt: Clean up struct alt_instr and its users
  x86/alt: Clean up the assembly used to generate alternatives
  x86/asm: Remove opencoded uses of altinstruction_entry
  x86/alt: Support for automatic padding calculations
  x86/alt: Drop explicit padding of origin sites
  x86/build: Use new .nop directive when available

 xen/arch/x86/Rules.mk                 |   1 +
 xen/arch/x86/alternative.c            |  48 +++++++++---
 xen/arch/x86/x86_64/compat/entry.S    |  26 +++----
 xen/arch/x86/x86_64/entry.S           |  20 +----
 xen/include/asm-x86/alternative-asm.h |  93 +++++++++++++++-------
 xen/include/asm-x86/alternative.h     | 143 ++++++++++++++++++----------------
 xen/include/asm-x86/asm_defns.h       |  32 +++-----
 xen/include/asm-x86/nops.h            |   7 --
 xen/include/asm-x86/spec_ctrl_asm.h   |  19 ++---
 9 files changed, 210 insertions(+), 179 deletions(-)

-- 
2.1.4


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             reply	other threads:[~2018-02-12 11:23 UTC|newest]

Thread overview: 52+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-02-12 11:23 Andrew Cooper [this message]
2018-02-12 11:23 ` [PATCH 1/7] x86/alt: Drop unused alternative infrastructure Andrew Cooper
2018-02-12 12:30   ` Wei Liu
2018-02-12 15:56   ` Roger Pau Monné
2018-02-12 15:58     ` Andrew Cooper
2018-02-13 14:22   ` Jan Beulich
2018-02-13 14:41     ` Andrew Cooper
2018-02-13 15:33       ` Jan Beulich
2018-02-14 10:02       ` Jan Beulich
2018-02-12 11:23 ` [PATCH 2/7] x86/alt: Clean up struct alt_instr and its users Andrew Cooper
2018-02-12 12:30   ` Wei Liu
2018-02-12 16:52   ` Roger Pau Monné
2018-02-12 17:18     ` Wei Liu
2018-02-12 17:53       ` Andrew Cooper
2018-02-13 14:26   ` Jan Beulich
2018-02-21 21:22   ` Konrad Rzeszutek Wilk
2018-02-12 11:23 ` [PATCH 3/7] x86/alt: Clean up the assembly used to generate alternatives Andrew Cooper
2018-02-12 12:30   ` Wei Liu
2018-02-12 17:26   ` Roger Pau Monné
2018-02-12 17:54     ` Andrew Cooper
2018-02-13 14:37   ` Jan Beulich
2018-02-23 14:03     ` Andrew Cooper
2018-02-23 15:12       ` Jan Beulich
2018-02-23 16:24         ` Andrew Cooper
2018-02-23 17:28           ` Jan Beulich
2018-02-12 11:23 ` [PATCH 4/7] x86/asm: Remove opencoded uses of altinstruction_entry Andrew Cooper
2018-02-12 12:30   ` Wei Liu
2018-02-12 12:34     ` Andrew Cooper
2018-02-13  9:56     ` Jan Beulich
2018-02-13 10:07       ` Andrew Cooper
2018-02-13 11:10         ` Jan Beulich
2018-02-12 12:52   ` Wei Liu
2018-02-12 17:46   ` Roger Pau Monné
2018-02-12 17:59     ` Andrew Cooper
2018-02-14  9:53   ` Jan Beulich
2018-02-12 11:23 ` [PATCH 5/7] x86/alt: Support for automatic padding calculations Andrew Cooper
2018-02-12 14:39   ` Wei Liu
2018-02-12 15:04     ` Andrew Cooper
2018-02-12 18:41       ` Roger Pau Monné
2018-02-12 18:45         ` Andrew Cooper
2018-02-12 18:09   ` Roger Pau Monné
2018-02-13  9:45   ` Roger Pau Monné
2018-02-13 10:09     ` Andrew Cooper
2018-02-13 10:26       ` Roger Pau Monné
2018-02-14  9:46   ` Jan Beulich
2018-02-12 11:23 ` [PATCH 6/7] x86/alt: Drop explicit padding of origin sites Andrew Cooper
2018-02-12 14:39   ` Wei Liu
2018-02-12 18:12   ` Roger Pau Monné
2018-02-14  9:53   ` Jan Beulich
2018-02-12 11:23 ` [PATCH 7/7] x86/build: Use new .nop directive when available Andrew Cooper
2018-02-12 14:40   ` Wei Liu
2018-02-13 11:08   ` Roger Pau Monné

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