All of lore.kernel.org
 help / color / mirror / Atom feed
From: Cyrill Gorcunov <gorcunov@gmail.com>
To: Sheng Yang <sheng@linux.intel.com>,
	Keir Fraser <keir.fraser@eu.citrix.com>,
	Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>,
	Jun Nakajima <jun.nakajima@intel.com>
Subject: Re: [RFC][PATCH 08/10] x86: Don't ack_APIC_irq() if lapic is disabled in GENERIC_INTERRUPT_VECTOR handler
Date: Wed, 16 Sep 2009 13:37:31 +0400	[thread overview]
Message-ID: <20090916093731.GG5094__3533.69418667189$1253094048$gmane$org@lenovo> (raw)
In-Reply-To: <20090916090306.GF5094@lenovo>

[Cyrill Gorcunov - Wed, Sep 16, 2009 at 01:03:06PM +0400]
| [Cyrill Gorcunov - Wed, Sep 16, 2009 at 12:58:35PM +0400]
| ...
| | 
| | Hi Sheng,
| | 
| | is there was some problem with it? I'm asking you
| | because if disable_apic=1 then any apic write/read
| | operations become NOPs. So I don't see how it may
| | hurt. But I could be missing something.
| |  
| | 	-- Cyrill
| 
| Ah, I see -- it's due to your other patch...
| Hmm this makes all "disable apic" idea less
| general. And safety of ack_APIC_irq is now
| under suspicious.
| 
| 	-- Cyrill

And how msi_compose_msg would work then?

Don't get me wrong please, I'm just trying to understand.
Perhaps Xen specifics will handle it (I didn't read Xen
internals) by substituting all this with own handler.

Since comments are requested I thought I may ask? :)

	-- Cyrill

  parent reply	other threads:[~2009-09-16  9:37 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-09-16  8:42 [RFC][PATCH 0/10] Xen Hybrid extension support Sheng Yang
2009-09-16  8:42 ` [RFC][PATCH 01/10] xen/pvhvm: add support for hvm_op Sheng Yang
2009-09-16  8:42   ` Sheng Yang
2009-09-16  8:42 ` [RFC][PATCH 02/10] xen/hybrid: Import cpuid.h from Xen Sheng Yang
2009-09-16  8:42 ` [RFC][PATCH 03/10] xen/hybrid: Xen Hybrid Extension initialization Sheng Yang
2009-09-16 20:24   ` [Xen-devel] " Jeremy Fitzhardinge
2009-09-16 20:24     ` Jeremy Fitzhardinge
2009-09-17  6:22     ` [Xen-devel] " Keir Fraser
2009-09-17  6:22       ` Keir Fraser
2009-09-17 16:46       ` [Xen-devel] " Jeremy Fitzhardinge
2009-09-17 16:46         ` Jeremy Fitzhardinge
2009-09-16  8:42 ` [RFC][PATCH 04/10] xen/hybrid: Modify pv_init_ops and xen_info Sheng Yang
2009-09-16  8:42 ` [RFC][PATCH 05/10] xen/hybrid: Add PV halt support Sheng Yang
2009-09-16  8:42   ` Sheng Yang
2009-09-16  8:42 ` [RFC][PATCH 06/10] xen/hybrid: Add shared_info page for xen Sheng Yang
2009-09-16  8:42 ` [RFC][PATCH 07/10] xen/hybrid: Add PV timer support Sheng Yang
2009-09-16 20:25   ` [Xen-devel] " Jeremy Fitzhardinge
2009-09-16 20:25     ` Jeremy Fitzhardinge
2009-09-17  5:54     ` [Xen-devel] " Sheng Yang
2009-09-16  8:42 ` [RFC][PATCH 08/10] x86: Don't ack_APIC_irq() if lapic is disabled in GENERIC_INTERRUPT_VECTOR handler Sheng Yang
2009-09-16  8:58   ` Cyrill Gorcunov
2009-09-16  9:03     ` Cyrill Gorcunov
2009-09-16  9:37       ` Cyrill Gorcunov
2009-09-17  3:54         ` Sheng Yang
2009-09-17  3:54           ` Sheng Yang
2009-09-16  9:37       ` Cyrill Gorcunov [this message]
2009-09-16  9:03     ` Cyrill Gorcunov
2009-09-16  8:42 ` [RFC][PATCH 09/10] xen/hybrid: Make event channel work with QEmu emulated devices Sheng Yang
2009-09-16 20:35   ` [Xen-devel] " Jeremy Fitzhardinge
2009-09-16 20:35     ` Jeremy Fitzhardinge
2009-09-17  5:58     ` [Xen-devel] " Sheng Yang
2009-09-17  5:58       ` Sheng Yang
2009-09-16  8:42 ` [RFC][PATCH 10/10] xen/hybrid: Enable grant table and xenbus Sheng Yang
2009-09-16 13:31 ` [Xen-devel] [RFC][PATCH 0/10] Xen Hybrid extension support Konrad Rzeszutek Wilk
2009-09-17  8:59   ` Sheng Yang
2009-09-17  8:59     ` Sheng Yang

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to='20090916093731.GG5094__3533.69418667189$1253094048$gmane$org@lenovo' \
    --to=gorcunov@gmail.com \
    --cc=jeremy.fitzhardinge@citrix.com \
    --cc=jun.nakajima@intel.com \
    --cc=keir.fraser@eu.citrix.com \
    --cc=sheng@linux.intel.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.