All of lore.kernel.org
 help / color / mirror / Atom feed
From: Akio Takebe <takebe_akio@jp.fujitsu.com>
To: "Tian, Kevin" <kevin.tian@intel.com>
Cc: xen-devel@lists.xensource.com
Subject: Re: [Q] Is qemu used when we use VTd?
Date: Thu, 11 Sep 2008 20:06:30 +0900	[thread overview]
Message-ID: <48C8FBB6.7070305@jp.fujitsu.com> (raw)
In-Reply-To: <D470B4E54465E3469E2ABBC5AFAC390F024D97B1@pdsmsx412.ccr.corp.intel.com>

Hi,

Thank you.

And mmio is traped by hypervisor,
then hypervisor do mmio instead of HVM guest, Right?

Best Regards,

Akio Takebe

Tian, Kevin wrote:
>> From: Akio Takebe
>> Sent: 2008年9月11日 18:46
>>
>> Hi,
>>
>> If we assign a device to HVM guest,
>> HVM guest can do directry DMA transfer.
>> But how about accessing pci configuration register
>> of the pass through device? Do we still access
>> pci configuration register through qemu?
>>
> 
> Yes, even when we say that given on PCI config field
> can be directly accessed by HVM guest, it's still trapped
> to Qemu for route.
> 
> Thanks,
> Kevin
> 

  reply	other threads:[~2008-09-11 11:06 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-09-11 10:46 [Q] Is qemu used when we use VTd? Akio Takebe
2008-09-11 11:00 ` pradeep singh rautela
2008-09-11 11:01 ` Tian, Kevin
2008-09-11 11:06   ` Akio Takebe [this message]
2008-09-12  2:37     ` Tian, Kevin
2008-09-12  2:59       ` Akio Takebe
2008-09-12  3:08         ` Tian, Kevin
2008-09-12  3:43           ` Akio Takebe
2008-09-11 11:12 ` Jean Guyader
2008-09-11 11:48   ` Akio Takebe
2008-09-12  2:46     ` Tian, Kevin
2008-09-12  3:25       ` Akio Takebe
2008-09-12  4:28         ` Yuji Shimada
2008-09-12  5:27           ` Akio Takebe
2008-09-22 13:47           ` Jiang, Yunhong
2008-09-24  8:24             ` Yuji Shimada
2008-09-24  8:57               ` Jiang, Yunhong
2008-09-26  4:09                 ` Yuji Shimada
2008-09-26  4:36                   ` Jiang, Yunhong
2008-09-29  5:05                     ` Yuji Shimada
2008-10-06  2:28                       ` [Q] Device error handling discussion -- Was: " Jiang, Yunhong
2008-10-14  8:33                         ` Yuji Shimada
2008-10-16  7:32                           ` Jiang, Yunhong
2008-10-20  7:13                             ` Yuji Shimada
2008-10-23  0:21                               ` Jiang, Yunhong

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=48C8FBB6.7070305@jp.fujitsu.com \
    --to=takebe_akio@jp.fujitsu.com \
    --cc=kevin.tian@intel.com \
    --cc=xen-devel@lists.xensource.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.