Re: [Qemu-devel] [PATCH] target-i386: set model=6 on qemu64 qemu32 CPU models

2013-09-12 Thread Eduardo Habkost
On Wed, Sep 11, 2013 at 11:53:46PM +0200, Andreas Färber wrote: Am 11.09.2013 10:37, schrieb Igor Mammedov: On Wed, 11 Sep 2013 10:25:58 +0200 Andreas Färber afaer...@suse.de wrote: Am 11.09.2013 10:22, schrieb Igor Mammedov: On Tue, 10 Sep 2013 17:48:59 -0300 Eduardo Habkost

Re: [Qemu-devel] [PATCH] target-i386: set model=6 on qemu64 qemu32 CPU models

2013-09-11 Thread Igor Mammedov
On Tue, 10 Sep 2013 17:48:59 -0300 Eduardo Habkost ehabk...@redhat.com wrote: There's no Intel CPU with family=6,model=2, and Linux and Windows guests disable SEP when seeing that combination due to Pentium Pro erratum #82. In addition to just having SEP ignored by guests, Skype (and maybe

Re: [Qemu-devel] [PATCH] target-i386: set model=6 on qemu64 qemu32 CPU models

2013-09-11 Thread Andreas Färber
Am 11.09.2013 10:22, schrieb Igor Mammedov: On Tue, 10 Sep 2013 17:48:59 -0300 Eduardo Habkost ehabk...@redhat.com wrote: There's no Intel CPU with family=6,model=2, and Linux and Windows guests disable SEP when seeing that combination due to Pentium Pro erratum #82. In addition to just

Re: [Qemu-devel] [PATCH] target-i386: set model=6 on qemu64 qemu32 CPU models

2013-09-11 Thread Igor Mammedov
On Wed, 11 Sep 2013 10:25:58 +0200 Andreas Färber afaer...@suse.de wrote: Am 11.09.2013 10:22, schrieb Igor Mammedov: On Tue, 10 Sep 2013 17:48:59 -0300 Eduardo Habkost ehabk...@redhat.com wrote: There's no Intel CPU with family=6,model=2, and Linux and Windows guests disable SEP when

Re: [Qemu-devel] [PATCH] target-i386: set model=6 on qemu64 qemu32 CPU models

2013-09-11 Thread Andreas Färber
Am 11.09.2013 10:37, schrieb Igor Mammedov: On Wed, 11 Sep 2013 10:25:58 +0200 Andreas Färber afaer...@suse.de wrote: Am 11.09.2013 10:22, schrieb Igor Mammedov: On Tue, 10 Sep 2013 17:48:59 -0300 Eduardo Habkost ehabk...@redhat.com wrote: There's no Intel CPU with family=6,model=2, and

[Qemu-devel] [PATCH] target-i386: set model=6 on qemu64 qemu32 CPU models

2013-09-10 Thread Eduardo Habkost
There's no Intel CPU with family=6,model=2, and Linux and Windows guests disable SEP when seeing that combination due to Pentium Pro erratum #82. In addition to just having SEP ignored by guests, Skype (and maybe other applications) runs sysenter directly without passing through ntdll on Windows,