public inbox for kvm@vger.kernel.org
 help / color / mirror / Atom feed
From: Anthony Liguori <anthony-rdkfGonbjUSkNkDKm+mE6A@public.gmane.org>
To: Izik Eidus <izike-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
Cc: kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org,
	Paul Brook <paul-qD8j1LwMmJjtCj0u4l0SBw@public.gmane.org>,
	qemu-devel-qX2TKyscuCcdnm+yROfE0A@public.gmane.org,
	Avi Kivity <avi-atKUWr5tajBWk0Htik3J/w@public.gmane.org>,
	Fabrice Bellard <fabrice-+Yn2HnRVxb5AfugRpC6u6w@public.gmane.org>
Subject: Re: [PATCH 2/6] Use correct types to enable > 2G support (v2)
Date: Mon, 04 Feb 2008 09:31:37 -0600	[thread overview]
Message-ID: <47A72FD9.90606@codemonkey.ws> (raw)
In-Reply-To: <1202114748.30861.6.camel-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>

Izik Eidus wrote:
>> Do you recall what this change fixed?  As Paul pointed out in IRC, using 
>> the host type here doesn't really fix the problem (target_ulong would be 
>> more appropriate).  However, we're both curious what problem it's 
>> actually fixing since sign extending the int should just work.
>>     
>
> ok the commit say:
>
>    kvm: qemu: change the type of the various page masks to unsigned long
>     
>    prevents truncation with >=4GB of guest physical memory
>
>
> as far as i remember it was used to address something with
> cpu_physical_memory_rw() probably related to &TARGET_PAGE_SIZE
> or ~TARGET_PAGE_SIZE,
>
> the fact is that i dont know if it ever fixed anything
>   

Thanks, that was my suspicion too.

Regards,

Anthony Liguori


-------------------------------------------------------------------------
This SF.net email is sponsored by: Microsoft
Defy all challenges. Microsoft(R) Visual Studio 2008.
http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/

  parent reply	other threads:[~2008-02-04 15:31 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-02-01 22:11 [PATCH 0/6] Support for the Kernel Virtual Machine interface (v2) Anthony Liguori
     [not found] ` <1201903921-1125-1-git-send-email-aliguori-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2008-02-01 22:11   ` [PATCH 1/6] Fix VMware VGA init call Anthony Liguori
     [not found]     ` <1201903921-1125-2-git-send-email-aliguori-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2008-02-01 22:23       ` Anthony Liguori
2008-02-01 22:11   ` [PATCH 2/6] Use correct types to enable > 2G support (v2) Anthony Liguori
     [not found]     ` <1201903921-1125-3-git-send-email-aliguori-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2008-02-04  1:56       ` Anthony Liguori
     [not found]         ` <47A670B4.6020803-rdkfGonbjUSkNkDKm+mE6A@public.gmane.org>
2008-02-04  8:45           ` Izik Eidus
     [not found]             ` <1202114748.30861.6.camel-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2008-02-04 15:31               ` Anthony Liguori [this message]
2008-02-10 10:48             ` Avi Kivity
2008-02-10 14:12               ` [Qemu-devel] " Paul Brook
2008-02-10 14:55                 ` Avi Kivity
2008-02-10 14:59                   ` Paul Brook
2008-02-10 15:14                     ` Avi Kivity
2008-02-01 22:11   ` [PATCH 3/6] SCI fixes (v2) Anthony Liguori
2008-02-01 22:12   ` [PATCH 5/6] Tell BIOS about the number of CPUs (v2) Anthony Liguori
2008-02-01 22:12   ` [PATCH 6/6] QEMU support for the Kernel Virtual Machine interface (v2) Anthony Liguori
     [not found]     ` <1201903921-1125-7-git-send-email-aliguori-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2008-02-04 13:51       ` [Qemu-devel] " Soren Hansen
     [not found]         ` <20080204135149.GD4554-w/BXfMF2+jKSwEwcaNC2fFpr/1R2p/CL@public.gmane.org>
2008-02-04 15:14           ` Anthony Liguori
2008-02-01 22:11 ` [PATCH 4/6] Fix daemonize options (v2) Anthony Liguori

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=47A72FD9.90606@codemonkey.ws \
    --to=anthony-rdkfgonbjusknkdkm+me6a@public.gmane.org \
    --cc=avi-atKUWr5tajBWk0Htik3J/w@public.gmane.org \
    --cc=fabrice-+Yn2HnRVxb5AfugRpC6u6w@public.gmane.org \
    --cc=izike-atKUWr5tajBWk0Htik3J/w@public.gmane.org \
    --cc=kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org \
    --cc=paul-qD8j1LwMmJjtCj0u4l0SBw@public.gmane.org \
    --cc=qemu-devel-qX2TKyscuCcdnm+yROfE0A@public.gmane.org \
    /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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox