|
xen-devel
|
To: |
"Puthiyaparambil, Aravindh" <aravindh.puthiyaparambil@xxxxxxxxxx> |
|
Subject: |
Re: [Xen-devel] Genapic |
|
From: |
Keir Fraser <Keir.Fraser@xxxxxxxxxxxx> |
|
Date: |
Wed, 18 May 2005 17:54:43 +0100 |
|
Cc: |
ak@xxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxx, "Davis, Jason" <jason.davis@xxxxxxxxxx>, "Vessey, Bruce A" <Bruce.Vessey@xxxxxxxxxx>, "Subrahmanian, Raj" <raj.subrahmanian@xxxxxxxxxx> |
|
Delivery-date: |
Wed, 18 May 2005 16:50:30 +0000 |
|
Envelope-to: |
www-data@xxxxxxxxxxxxxxxxxxx |
|
In-reply-to: |
<EF8D308BE33AF54D8934DF26520252D301CC2C50@xxxxxxxxxxxxxxxxxxxxxxxxxxxx> |
|
List-help: |
<mailto:xen-devel-request@lists.xensource.com?subject=help> |
|
List-id: |
Xen developer discussion <xen-devel.lists.xensource.com> |
|
List-post: |
<mailto:xen-devel@lists.xensource.com> |
|
List-subscribe: |
<http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=subscribe> |
|
List-unsubscribe: |
<http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe> |
|
References: |
<EF8D308BE33AF54D8934DF26520252D301CC2C50@xxxxxxxxxxxxxxxxxxxxxxxxxxxx> |
|
Sender: |
xen-devel-bounces@xxxxxxxxxxxxxxxxxxx |
On 18 May 2005, at 16:45, Puthiyaparambil, Aravindh wrote:
Genapic is done differently for i386 and x86_64 in the LK. In i386 it
is
machine specific and in x86_64 it is APIC model specific. Do you want
Xen to mimic that? Further more both i386 and x86_64 have separate
apic.c, io_apic.c (just to name a couple) files. Xen shares them
between
the two. Will that cause any problems?
I am wondering if it is possible to have a unified genapic for Xen. Or
is it way too complicated?
Shared platform code (apics and the like) has been remarkably simple.
This is to be expected: processor differences aside, i386 and x86/64
are identical platforms. So, for example, fixing Xen's smpboot.c
(derived from Linux/i386) for x86/64 required one or two lines to be
changed. Same for ACPI parsing, MP-table parsing, and so on. I wonder
why i386 and x86/64 have been allowed to diverge so wildly in Linux?
:-)
-- Keir
_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel
|
| <Prev in Thread] |
Current Thread |
[Next in Thread>
|
|
RE: [Xen-devel] Genapic, Nakajima, Jun
RE: [Xen-devel] Genapic, Puthiyaparambil, Aravindh
RE: [Xen-devel] Genapic, Nakajima, Jun
RE: [Xen-devel] Genapic, Puthiyaparambil, Aravindh
RE: [Xen-devel] Genapic, Puthiyaparambil, Aravindh
|
|
|
Home