linux-kernel - [PATCH 0/6] kvm: Emulate MOVBE, v3

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Date:	Sun, 22 Sep 2013 16:44:49 +0200
From:	Borislav Petkov <bp@...en8.de>
To:	LKML <linux-kernel@...r.kernel.org>
Cc:	Borislav Petkov <bp@...e.de>, "H. Peter Anvin" <hpa@...or.com>,
	Gleb Natapov <gleb@...hat.com>,
	Paolo Bonzini <pbonzini@...hat.com>,
	Andre Przywara <andre@...rep.de>,
	Joerg Roedel <joro@...tes.org>, X86 ML <x86@...nel.org>,
	KVM <kvm@...r.kernel.org>
Subject: [PATCH 0/6] kvm: Emulate MOVBE, v3

From: Borislav Petkov <bp@...e.de>

Alriiight,

here's another version of the patchset, hopefully addressing all review
feedback from last time. 6/6 is the respective qemu patch to handle
emulated features query, etc.

It is still a lot of fun to generate fast! Atom 32-bit SMP guests like
this:

[    0.022876] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1
[    0.033304] smpboot: CPU0: Intel(R) Atom(TM) CPU N270   @ 1.60GHz (fam: 06, model: 1c, stepping: 02)
[    0.037000] APIC calibration not consistent with PM-Timer: 146ms instead of 100ms
[    0.037000] APIC delta adjusted to PM-Timer: 6249937 (9125627)
[    0.037066] Performance Events: unsupported p6 CPU model 28 no PMU driver, software events only.
[    0.043605] SMP alternatives: lockdep: fixing up alternatives
[    0.044030] CPU 1 irqstacks, hard=f450c000 soft=f450e000
[    0.045004] smpboot: Booting Node   0, Processors  #1[    0.004000] Initializing CPU#1
[    0.004000] Atom PSE erratum detected, BIOS microcode update recommended

[    0.120290] SMP alternatives: lockdep: fixing up alternatives
[    0.121007] CPU 2 irqstacks, hard=f451c000 soft=f451e000
[    0.122003]  #2[    0.004000] Initializing CPU#2
[    0.004000] Atom PSE erratum detected, BIOS microcode update recommended

...

[    0.667192] SMP alternatives: lockdep: fixing up alternatives
[    0.668007] CPU 7 irqstacks, hard=f45b0000 soft=f45b2000
[    0.669010]  #7 OK
[    0.004000] Initializing CPU#7
[    0.004000] Atom PSE erratum detected, BIOS microcode update recommended
[    0.781052] Brought up 8 CPUs
[    0.781917] smpboot: Total of 8 processors activated (57461.27 BogoMIPS)

LooL :-)

Comments and suggestions appreciated, as always!

Thanks.

Borislav Petkov (5):
  kvm: Add KVM_GET_EMULATED_CPUID
  kvm, emulator: Use opcode length
  kvm, emulator: Rename VendorSpecific flag
  kvm, emulator: Add initial three-byte insns support
  kvm: Emulate MOVBE

 Documentation/virtual/kvm/api.txt  | 77 +++++++++++++++++++++++++++++--
 arch/x86/include/asm/kvm_emulate.h | 10 ++--
 arch/x86/include/uapi/asm/kvm.h    |  6 +--
 arch/x86/kvm/cpuid.c               | 75 +++++++++++++++++++++++++++---
 arch/x86/kvm/cpuid.h               |  5 +-
 arch/x86/kvm/emulate.c             | 94 ++++++++++++++++++++++++++++++++++----
 arch/x86/kvm/x86.c                 | 16 ++++---
 include/uapi/linux/kvm.h           |  2 +
 8 files changed, 251 insertions(+), 34 deletions(-)

Borislav Petkov (1):
  qemu: Add support for emulated CPU features

 include/sysemu/kvm.h      |  4 ++++
 linux-headers/linux/kvm.h |  4 ++++
 target-i386/cpu.c         |  7 +++++++
 target-i386/kvm.c         | 38 ++++++++++++++++++++++++++++++++++----
 4 files changed, 49 insertions(+), 4 deletions(-)

-- 
1.8.4

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