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70989449da
linux/arch/x86
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Srivatsa S. Bhat 70989449da x86, microcode: Don't request microcode from userspace unnecessarily 
Requesting the microcode from userspace *every time* when onlining CPUs
(during a CPU hotplug operation) is unnecessary. Thus, ensure that
once the kernel gets the microcode after booting, it is not freed nor
invalidated when a CPU goes offline, so that it can be reused when that
CPU comes back online, without requesting userspace for it again. As a
result, the CPU hotplug operations become faster as well.

Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Acked-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Andreas Herrmann <andreas.herrmann3@amd.com>
Link: http://lkml.kernel.org/r/4E91F908.5010006@linux.vnet.ibm.com
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2011-10-13 16:20:35 +02:00
..
boot x86, build: Do not set the root_dev field in bzImage 2011-05-25 12:46:05 -07:00
configs cgroup: remove the ns_cgroup 2011-05-26 17:12:34 -07:00
crypto crypto: ghash-intel - Fix set but not used in ghash_async_setkey() 2011-06-30 07:43:42 +08:00
ia32 All Arch: remove linkage for sys_nfsservctl system call 2011-08-26 15:09:58 -07:00
include/asm asm alternatives: remove incorrect alignment notes 2011-09-15 13:28:33 -07:00
kernel x86, microcode: Don't request microcode from userspace unnecessarily 2011-10-13 16:20:35 +02:00
kvm KVM: x86 emulator: fix Src2CL decode 2011-09-25 19:14:58 +03:00
lguest lguest: Fix translation count about wikipedia's cpuid page 2011-07-22 14:39:50 +09:30
lib atomic: use <linux/atomic.h> 2011-07-26 16:49:47 -07:00
math-emu
mm x86: fix mm/fault.c build 2011-08-15 19:10:50 -07:00
net net: filter: Just In Time compiler for x86-64 2011-04-27 23:05:08 -07:00
oprofile x86, perf: Make copy_from_user_nmi() a library function 2011-07-21 20:41:57 +02:00
pci x86/PCI: use host bridge _CRS info on ASUS M2V-MX SE 2011-10-06 16:10:37 -07:00
platform x86/rtc: Don't recursively acquire rtc_lock 2011-09-21 16:16:09 +02:00
power
tools
vdso Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2011-08-23 18:09:08 -07:00
video
xen Merge branch 'stable/bug.fixes' of git://oss.oracle.com/git/kwilk/xen 2011-09-16 11:28:11 -07:00
.gitignore
Kbuild net: filter: Just In Time compiler for x86-64 2011-04-27 23:05:08 -07:00
Kconfig Merge commit 'v3.0' into x86/vdso 2011-08-04 16:13:20 -07:00
Kconfig.cpu x86: Add support for cmpxchg_double 2011-06-25 12:17:32 -07:00
Kconfig.debug lib: consolidate DEBUG_STACK_USAGE option 2011-05-25 08:39:54 -07:00
Makefile
Makefile_32.cpu x86, cpu: Move AMD Elan Kconfig under "Processor family" 2011-04-08 13:01:25 -07:00