From: Stewart Smith <stewart@linux.vnet.ibm.com>
To: Bharata B Rao <bharata@linux.vnet.ibm.com>, qemu-devel@nongnu.org
Cc: aik@ozlabs.ru, agraf@suse.de
Subject: Re: [Qemu-devel] [PATCH v2] ppc: Force CPU threads count to be a power of 2.
Date: Thu, 06 Mar 2014 09:51:57 +1100 [thread overview]
Message-ID: <877g88jm2a.fsf@river.au.ibm.com> (raw)
In-Reply-To: <1394008356-15320-1-git-send-email-bharata@linux.vnet.ibm.com>
Bharata B Rao <bharata@linux.vnet.ibm.com> writes:
> PowerPC kernel expects the number of SMT threads in a core to be a power
> of 2. Since QEMU doesn't enforce this, it leads to an early guest kernel
> crash if invalid threads count is specified.
>
> Prevent this crash and make it a graceful exit from QEMU itself by
> validating the user supplied threads count.
>
> Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Reviewed-by: Stewart Smith <stewart@linux.vnet.ibm.com>
prev parent reply other threads:[~2014-03-05 22:52 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-05 8:32 [Qemu-devel] [PATCH v2] ppc: Force CPU threads count to be a power of 2 Bharata B Rao
2014-03-05 13:59 ` Eric Blake
2014-03-19 2:47 ` Bharata B Rao
2014-03-19 22:58 ` Andreas Färber
2014-03-05 22:51 ` Stewart Smith [this message]
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=877g88jm2a.fsf@river.au.ibm.com \
--to=stewart@linux.vnet.ibm.com \
--cc=agraf@suse.de \
--cc=aik@ozlabs.ru \
--cc=bharata@linux.vnet.ibm.com \
--cc=qemu-devel@nongnu.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;
as well as URLs for NNTP newsgroup(s).