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From: Jes Sorensen <jes@sgi.com>
To: linux-ia64@vger.kernel.org
Subject: Re: [PATCH 04/15] ia64/pv_ops: introduce pv_info which describes
Date: Tue, 22 Apr 2008 13:55:54 +0000	[thread overview]
Message-ID: <480DEE6A.8050408@sgi.com> (raw)
In-Reply-To: <12077165491881-git-send-email-yamahata@valinux.co.jp>

Dong, Eddie wrote:
> My understanding is that code such as IVT table are well tuned and you
> are really 
> difficult to pursuade people to replace those privilege resource access
> instruction
> to use vdso or something equalvalent such as mov GRx=CRy.  For those C
> code
> previlige resource access, like Isaku mentioned, we need to consider
> native too.

Hi Eddie,

I think binary patching of the ivt makes a lot of sense, I am certainly
not opposed to that. I was more thinking in terms of calls out of the
regular C code.

Cheers,
Jes

  parent reply	other threads:[~2008-04-22 13:55 UTC|newest]

Thread overview: 52+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-04-09  4:48 [PATCH 00/15] RFC: ia64/pv_ops take 4 Isaku Yamahata
2008-04-09  4:48 ` [PATCH 01/15] ia64: preparation: remove extern in irq_ia64.c Isaku Yamahata
2008-04-09  4:48 ` [PATCH 02/15] ia64/pv_ops: preparation: introduce ia64_set_rr0_to_rr4() to make kernel paravirtualization friendly Isaku Yamahata
2008-04-09  4:48 ` [PATCH 03/15] ia64/pv_ops: preparation: introduce ia64_get_psr_i() " Isaku Yamahata
2008-04-09  4:48 ` [PATCH 04/15] ia64/pv_ops: introduce pv_info which describes some random info Isaku Yamahata
2008-04-09  4:48 ` Isaku Yamahata
2008-04-22  9:16   ` Jes Sorensen
2008-04-22  9:16   ` Jes Sorensen
2008-04-22 10:02     ` Isaku Yamahata
2008-04-22 10:02   ` Isaku Yamahata
2008-04-22 10:37     ` Jes Sorensen
2008-04-22 10:37   ` [PATCH 04/15] ia64/pv_ops: introduce pv_info which describes Jes Sorensen
2008-04-22 10:41     ` [PATCH 04/15] ia64/pv_ops: introduce pv_info which describes some random info Dong, Eddie
2008-04-22 11:02     ` Isaku Yamahata
2008-04-22 10:41   ` Dong, Eddie
2008-04-22 11:30     ` Jes Sorensen
2008-04-22 11:02   ` Isaku Yamahata
2008-04-22 11:30   ` [PATCH 04/15] ia64/pv_ops: introduce pv_info which describes Jes Sorensen
2008-04-22 13:15     ` [PATCH 04/15] ia64/pv_ops: introduce pv_info which describes some random info Dong, Eddie
2008-04-22 13:15   ` Dong, Eddie
2008-04-22 13:55     ` Jes Sorensen
2008-04-22 13:55   ` Jes Sorensen [this message]
2008-04-30 12:29   ` Isaku Yamahata
2008-04-09  4:48 ` [PATCH 05/15] ia64/pv_ops: introduce pv_cpu_ops to paravirtualize privileged instructions Isaku Yamahata
2008-04-09  4:48 ` [PATCH 06/15] ia64/pv_ops: preparation for paravirtulization of hand written assembly code Isaku Yamahata
2008-04-09  4:49 ` [PATCH 07/15] ia64/pv_ops: define paravirtualized instructions for native Isaku Yamahata
2008-04-09  4:49 ` [PATCH 08/15] ia64/pv_ops: paravirtualize minstate.h Isaku Yamahata
2008-04-09  4:49 ` [PATCH 09/15] ia64/pv_ops: paravirtualize ivt.S Isaku Yamahata
2008-04-09  4:49 ` [PATCH 10/15] ia64/pv_ops: paravirtualize entry.S Isaku Yamahata
2008-04-09  4:49 ` [PATCH 11/15] ia64/pv_ops: paravirtualize NR_IRQS Isaku Yamahata
2008-04-22  9:08   ` Jes Sorensen
2008-04-22 10:11     ` Isaku Yamahata
2008-04-22  9:08   ` Jes Sorensen
2008-04-22 10:11   ` Isaku Yamahata
2008-04-22 12:05     ` Jes Sorensen
2008-04-22 12:05   ` Jes Sorensen
2008-04-23  2:54     ` Isaku Yamahata
2008-04-23  2:54   ` Isaku Yamahata
2008-04-23 14:03     ` Jes Sorensen
2008-04-23 14:03   ` Jes Sorensen
2008-04-24 11:19     ` Isaku Yamahata
2008-04-24 11:19   ` Isaku Yamahata
2008-04-24 11:52     ` Jes Sorensen
2008-04-24 11:52   ` Jes Sorensen
2008-04-24 12:21     ` Isaku Yamahata
2008-04-24 12:21   ` Isaku Yamahata
2008-04-30 12:29   ` Isaku Yamahata
2008-04-09  4:49 ` Isaku Yamahata
2008-04-09  4:49 ` [PATCH 12/15] ia64/pv_ops: define initialization hooks, pv_init_ops, for paravirtualized environment Isaku Yamahata
2008-04-09  4:49 ` [PATCH 13/15] ia64/pv_ops: add hooks, pv_iosapic_ops, to paravirtualize iosapic Isaku Yamahata
2008-04-09  4:49 ` [PATCH 14/15] ia64/pv_ops: add hooks, pv_irq_ops, to paravirtualized irq related operations Isaku Yamahata
2008-04-09  4:49 ` [PATCH 15/15] ia64/pv_ops: add to hooks, pv_time_ops, for steal time accounting Isaku Yamahata

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