Jason Wang 9df56f19a5 x86: Correctly detect hypervisor ...

We try to handle the hypervisor compatibility mode by detecting hypervisor
through a specific order. This is not robust, since hypervisors may implement
each others features.

This patch tries to handle this situation by always choosing the last one in the
CPUID leaves. This is done by letting .detect() return a priority instead of
true/false and just re-using the CPUID leaf where the signature were found as
the priority (or 1 if it was found by DMI). Then we can just pick hypervisor who
has the highest priority. Other sophisticated detection method could also be
implemented on top.

Suggested by H. Peter Anvin and Paolo Bonzini.

Acked-by: K. Y. Srinivasan <kys@microsoft.com>
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: Doug Covelli <dcovelli@vmware.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: Dan Hecht <dhecht@vmware.com>
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>
Cc: Gleb Natapov <gleb@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Link: http://lkml.kernel.org/r/1374742475-2485-4-git-send-email-jasowang@redhat.com
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>

2013-08-05 06:35:33 -07:00

..

mcheck

x86/mce: Fix mce regression from recent cleanup

2013-07-29 11:23:27 -07:00

mtrr

Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux

2013-07-09 16:04:31 -07:00

.gitignore

Update .gitignore files for generated targets

2008-10-20 11:24:31 -07:00

amd.c

x86: delete __cpuinit usage from all x86 files

2013-07-14 19:36:56 -04:00

bugs_64.c

x86/cpu: Clean up various files a bit

2009-07-11 11:24:09 +02:00

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: delete __cpuinit usage from all x86 files

2013-07-14 19:36:56 -04:00

cpu.h

x86/tlb_info: get last level TLB entry number of CPU

2012-06-27 19:28:24 -07:00

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

x86: Fix typo in MODULE_DEVICE_TABLE example: s/x86_cpu/x86cpu/

2012-04-16 14:20:19 +02:00

mkcapflags.sh

mkcapflags.pl: convert to mkcapflags.sh

2013-04-29 15:54:27 -07:00

mshyperv.c

x86: Correctly detect hypervisor

2013-08-05 06:35:33 -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/x86/amd: Rework AMD PMU init code

2013-05-28 09:13:55 +02:00

perf_event_intel_ds.c

perf/x86: Disable PEBS-LL in intel_pmu_pebs_disable()

2013-06-26 21:58:51 +02:00

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

x86: delete __cpuinit usage from all x86 files

2013-07-14 19:36:56 -04:00

perf_event_intel_uncore.h

perf/x86/intel: Prevent some shift wrapping bugs in the Intel uncore driver

2013-05-28 09:13:52 +02:00

perf_event_intel.c

perf/x86: Fix shared register mutual exclusion enforcement

2013-06-26 21:58:49 +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

x86: delete __cpuinit usage from all x86 files

2013-07-14 19:36:56 -04:00

perf_event.h

perf/x86: Fix shared register mutual exclusion enforcement

2013-06-26 21:58:49 +02:00

perfctr-watchdog.c

perf/x86: Add support for Intel Xeon-Phi Knights Corner PMU

2012-10-04 13:32:37 +02:00

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