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9e7827b5ea
linux/arch/x86/kernel/cpu
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K. Y. Srinivasan 9e7827b5ea x86, hyperv: Get the local APIC timer frequency from the hypervisor 
Hyper-V supports a mechanism for retrieving the local APIC frequency.
Use this and bypass the calibration code in the kernel . This would
allow us to boot the Linux kernel as a "modern VM" on Hyper-V where
many of the legacy devices (such as PIT) are not emulated.

I would like to thank Olaf Hering <olaf@aepfle.de>, Jan Beulich <JBeulich@suse.com> and
H. Peter Anvin <h.peter.anvin@intel.com> for their help in this effort.

In this version of the patch, I have addressed Jan's comments.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Link: http://lkml.kernel.org/r/1380554932-9888-1-git-send-email-olaf@aepfle.de
Tested-by: Olaf Hering <olaf@aepfle.de>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2013-10-10 11:44:12 -07:00
..
mcheck Bit 12 may or may not be set in MCi_STATUS.MCACOD when 2013-08-12 19:51:43 +02:00
mtrr mm: vmstats: track TLB flush stats on UP too 2013-09-11 15:57:09 -07:00
.gitignore
amd.c Merge branch 'x86-asmlinkage-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2013-09-04 08:42:44 -07:00
bugs_64.c
bugs.c x86: Get rid of ->hard_math and all the FPU asm fu 2013-06-06 14:32:04 -07:00
centaur.c x86: delete __cpuinit usage from all x86 files 2013-07-14 19:36:56 -04:00
common.c x86, asmlinkage: Make several variables used from assembler/linker script visible 2013-08-06 14:20:13 -07:00
cpu.h
cyrix.c x86: delete __cpuinit usage from all x86 files 2013-07-14 19:36:56 -04:00
hypervisor.c x86: Correctly detect hypervisor 2013-08-05 06:35:33 -07:00
intel_cacheinfo.c x86: delete __cpuinit usage from all x86 files 2013-07-14 19:36:56 -04:00
intel.c x86: delete __cpuinit usage from all x86 files 2013-07-14 19:36:56 -04:00
Makefile perf/x86/amd: AMD IOMMU Performance Counter PERF uncore PMU implementation 2013-06-19 13:04:53 +02:00
match.c
mkcapflags.sh mkcapflags.pl: convert to mkcapflags.sh 2013-04-29 15:54:27 -07:00
mshyperv.c x86, hyperv: Get the local APIC timer frequency from the hypervisor 2013-10-10 11:44:12 -07:00
perf_event_amd_ibs.c x86: delete __cpuinit usage from all x86 files 2013-07-14 19:36:56 -04:00
perf_event_amd_iommu.c perf/x86/amd: Do not print an error when the device is not present 2013-07-05 08:27:15 +02:00
perf_event_amd_iommu.h perf/x86/amd: AMD IOMMU Performance Counter PERF uncore PMU implementation 2013-06-19 13:04:53 +02:00
perf_event_amd_uncore.c x86: delete __cpuinit usage from all x86 files 2013-07-14 19:36:56 -04:00
perf_event_amd.c perf: Convert kmalloc_node(...GFP_ZERO...) to kzalloc_node() 2013-09-02 08:42:49 +02:00
perf_event_intel_ds.c Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2013-09-18 11:26:17 -05:00
perf_event_intel_lbr.c perf/x86/intel: Support Haswell/v4 LBR format 2013-06-19 14:43:35 +02:00
perf_event_intel_uncore.c perf/x86/intel/uncore: Don't use smp_processor_id() in validate_group() 2013-09-20 06:54:36 +02:00
perf_event_intel_uncore.h perf/x86/intel/uncore: Enable EV_SEL_EXT bit for PCU 2013-08-16 17:55:50 +02:00
perf_event_intel.c perf/x86/intel: Add model number for Avoton Silvermont 2013-09-23 10:22:00 +02:00
perf_event_knc.c x86: Constify a few items 2013-03-11 15:11:03 +01:00
perf_event_p4.c perf/x86/intel/P4: Robistify P4 PMU types 2013-04-26 09:31:41 +02:00
perf_event_p6.c x86: Constify a few items 2013-03-11 15:11:03 +01:00
perf_event.c perf/x86: Fix PMU detection printout when no PMU is detected 2013-09-28 15:48:48 +02:00
perf_event.h perf/x86: Add Silvermont (22nm Atom) support 2013-09-02 08:42:47 +02:00
perfctr-watchdog.c
powerflags.c update AMD powerflags comments 2013-05-28 12:02:10 +02:00
proc.c x86: Get rid of ->hard_math and all the FPU asm fu 2013-06-06 14:32:04 -07:00
rdrand.c x86: delete __cpuinit usage from all x86 files 2013-07-14 19:36:56 -04:00
scattered.c x86: delete __cpuinit usage from all x86 files 2013-07-14 19:36:56 -04:00
topology.c x86: delete __cpuinit usage from all x86 files 2013-07-14 19:36:56 -04:00
transmeta.c x86: delete __cpuinit usage from all x86 files 2013-07-14 19:36:56 -04:00
umc.c x86: delete __cpuinit usage from all x86 files 2013-07-14 19:36:56 -04:00
vmware.c x86: Correctly detect hypervisor 2013-08-05 06:35:33 -07:00