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Re: [Xen-devel] [PATCH v2 3/3] paravirt: rename paravirt_enabled to paravirt_legacy
- To: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Borislav Petkov <bp@xxxxxxxxx>
- From: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>
- Date: Mon, 8 Feb 2016 11:12:08 -0500
- Cc: X86 ML <x86@xxxxxxxxxx>, david.e.box@xxxxxxxxx, Andrey Ryabinin <ryabinin.a.a@xxxxxxxxx>, Lv Zheng <lv.zheng@xxxxxxxxx>, Jan Beulich <JBeulich@xxxxxxxx>, "H. Peter Anvin" <hpa@xxxxxxxxx>, qiuxishi@xxxxxxxxxx, cocci@xxxxxxxxxxxxxxx, Xen Devel <xen-devel@xxxxxxxxxxxxxxxxxxx>, Joerg Roedel <joro@xxxxxxxxxx>, "Rafael J. Wysocki" <rafael.j.wysocki@xxxxxxxxx>, Robert Moore <robert.moore@xxxxxxxxx>, Ingo Molnar <mingo@xxxxxxxxxx>, Andrey Ryabinin <aryabinin@xxxxxxxxxxxxx>, Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxxxx>, "Luis R. Rodriguez" <mcgrof@xxxxxxxx>, Rusty Russell <rusty@xxxxxxxxxxxxxxx>, Thomas Gleixner <tglx@xxxxxxxxxxxxx>, mcb30@xxxxxxxx, Juergen Gross <jgross@xxxxxxxx>, "linux-kernel@xxxxxxxxxxxxxxx" <linux-kernel@xxxxxxxxxxxxxxx>, Andy Lutomirski <luto@xxxxxxxxxxxxxx>, "Luis R. Rodriguez" <mcgrof@xxxxxxxxxx>, long.wanglong@xxxxxxxxxx, Fengguang Wu <fengguang.wu@xxxxxxxxx>
- Delivery-date: Mon, 08 Feb 2016 16:13:14 +0000
- List-id: Xen developer discussion <xen-devel.lists.xen.org>
On 02/08/2016 11:05 AM, Andrew Cooper wrote:
For compatibility with other virtualisation specs, Xen's cpuid leaves
shift depending on configuration.
Spec at
http://xenbits.xen.org/gitweb/?p=xen.git;a=blob;f=xen/include/public/arch-x86/cpuid.h;h=d709340f18d089560b959835eabb7b6609542c7e;hb=HEAD#l33
Basically, they are either at 0x40000000, or 0x40000100 if viridian or
vmware compatibility has been enabled.
(Also in arch/x86/include/asm/xen/cpuid.h in Linux tree).
-boris
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