lkml.org 
[lkml]   [2017]   [Jan]   [17]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Subject[PATCH 00/13] x86/microcode: 4.11 queue
Date
From: Borislav Petkov <bp@suse.de>

Hi,

so this is more of a lessons-learned pile after the rewriting of the
whole patch loading method and not caching addresses. It largely
simplifies the loader - just look at the diffstat - without any
functionality loss (I hope :-)). The driver is also very much readable
now with unified, common paths where possible.

What is more, 6/13 reworks the whole AMD container parsing into much
more readable separation of functionality and functions doing only one
thing properly.

13/13 is also another nice simplification for the AP update path which
looks almost straightforward in comparison with what we had before.

All has been tested on a lot of boxes and in different configurations:

* builtin vs initrd microcode
* old microcode_ctl application method for Intel
* "echo 1 > /sys/devices/system/cpu/microcode/reload" late method
* CONFIG_RANDOMIZE_MEMORY

both on Intel and AMD machines.

Please queue for 4.11.

Thanks.

Borislav Petkov (13):
x86/microcode/intel: Drop stashed AP patch pointer optimization
x86/microcode: Use own MSR accessors
x86/microcode/AMD: Clean up find_equiv_id()
x86/microcode/AMD: Shorten function parameter's name
x86/microcode/AMD: Extend the container struct
x86/microcode/AMD: Rework container parsing
x86/microcode: Decrease CPUID use
x86/microcode/AMD: Get rid of global this_equiv_id
x86/microcode/AMD: Use find_microcode_in_initrd()
x86/microcode/AMD: Check patch level only on the BSP
x86/microcode/AMD: Unify load_ucode_amd_ap()
x86/microcode/AMD: Simplify saving from initrd
x86/microcode/AMD: Remove AP scanning optimization

arch/x86/include/asm/microcode.h | 29 +-
arch/x86/include/asm/microcode_amd.h | 2 -
arch/x86/include/asm/microcode_intel.h | 4 +-
arch/x86/kernel/cpu/microcode/amd.c | 501 +++++++++++----------------------
arch/x86/kernel/cpu/microcode/core.c | 81 ++++--
arch/x86/kernel/cpu/microcode/intel.c | 13 +-
6 files changed, 248 insertions(+), 382 deletions(-)

--
2.11.0

\
 
 \ /
  Last update: 2017-01-17 18:48    [W:0.193 / U:0.956 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site