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

..

boot

arm: add support for LZ4-compressed kernel

2013-07-09 10:33:30 -07:00

configs

x86, platform, kvm, kconfig: Turn existing .config's into KVM-capable configs

2013-05-28 12:11:32 +02:00

crypto

Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

2013-07-24 11:05:18 -07:00

ia32

mm: remove free_area_cache

2013-07-10 18:11:34 -07:00

include

x86: Correctly detect hypervisor

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

kernel

x86: Correctly detect hypervisor

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

kvm

KVM: MMU: avoid fast page fault fixing mmio page fault

2013-07-18 12:26:57 +02:00

lguest

Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2013-07-06 14:09:38 -07:00

lib

Kconfig: consolidate CONFIG_DEBUG_STRICT_USER_COPY_CHECKS

2013-04-30 17:04:09 -07:00

math-emu

…

mm

x86: delete __cpuinit usage from all x86 files

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

net

x86: bpf_jit_comp: secure bpf jit against spraying attacks

2013-05-19 23:55:41 -07:00

oprofile

oprofile, x86: Fix wrapping bug in op_x86_get_ctrl()

2012-10-15 14:38:24 +02:00

pci

x86: delete __cpuinit usage from all x86 files

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

platform

arch/x86/platform/ce4100/ce4100.c: include reboot.h

2013-07-31 14:41:02 -07:00

power

x86, gdt, hibernate: Store/load GDT for hibernate path.

2013-05-02 11:27:35 -07:00

realmode

x86, relocs: Refactor the relocs tool to merge 32- and 64-bit ELF

2013-04-16 16:02:58 -07:00

syscalls

unify compat fanotify_mark(2), switch to COMPAT_SYSCALL_DEFINE

2013-05-09 13:46:38 -04:00

tools

x86, relocs: Move __vvar_page from S_ABS to S_REL

2013-06-12 15:14:57 -07:00

um

um: remove dead code

2013-07-19 11:35:32 +02:00

vdso

x86/vdso: Convert use of typedef ctl_table to struct ctl_table

2013-06-19 15:06:09 +02:00

video

…

xen

x86: Correctly detect hypervisor

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

.gitignore

…

Kbuild

…

Kconfig

arm: add support for LZ4-compressed kernel

2013-07-09 10:33:30 -07:00

Kconfig.cpu

x86, 386 removal: Document Nx586 as a 386 and thus unsupported

2012-11-29 13:28:39 -08:00

Kconfig.debug

Merge branch 'kconfig-diet' from Dave Hansen

2013-07-04 11:25:51 -07:00

Makefile

x86/platform: Add kvmconfig to the phony targets

2013-06-23 12:17:35 +02:00

Makefile_32.cpu

x86, 386 removal: Remove CONFIG_M386 from Kconfig

2012-11-29 13:23:01 -08:00

Makefile.um

…