[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Xen-devel] [PATCH v2 3/3] paravirt: rename paravirt_enabled to paravirt_legacy
- To: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>
- From: Borislav Petkov <bp@xxxxxxxxx>
- Date: Mon, 8 Feb 2016 17:52:27 +0100
- 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>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, "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 16:52:42 +0000
- List-id: Xen developer discussion <xen-devel.lists.xen.org>
On Mon, Feb 08, 2016 at 11:41:16AM -0500, Boris Ostrovsky wrote:
> Keep in mind that Xen PV doesn't go through startup_32|64(). It starts at
> xen_start_kernel (save for a small stub before that), which sets pvops. It
> "joins" regular/baremetal code in
> i386_start_kernel/x86_64_start_reservation().
Ah, so one more reason not to do the CPUID thing for the early loader.
So it's up to you how to replace that paravirt_enabled() thing - CPUID
or test static_cpu_has(X86_FEATURE_XENPV)...
--
Regards/Gruss,
Boris.
ECO tip #101: Trim your mails when you reply.
_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxx
http://lists.xen.org/xen-devel
|
