From: Avi Kivity <avi@redhat.com>
To: Daniele Carollo <carollo.dani@gmail.com>
Cc: kvm@vger.kernel.org, Sasha Levin <levinsasha928@gmail.com>
Subject: Re: monitor flag on native kvm tool guest
Date: Thu, 01 Dec 2011 15:58:57 +0200 [thread overview]
Message-ID: <4ED78821.4050208@redhat.com> (raw)
In-Reply-To: <CAMEokbT7ar1=TOSdoBS+AYv3SkiNoxP=TbSDGT1sec11Z8pDGw@mail.gmail.com>
On 12/01/2011 03:54 PM, Daniele Carollo wrote:
> Il 01 dicembre 2011 14:48, Avi Kivity <avi@redhat.com> ha scritto:
> > On 12/01/2011 03:37 PM, Daniele Carollo wrote:
> >> Hi,
> >> my name's Daniele and I'm using the native linux kvm tool.
> >> If I try to execute it in this way ./kvm run -d ~/linux-0.2.img I get
> >> a kernel panic like this: http://paste.org/41673
> >> Only using the addictional option -p "idle=halt" I can run a virtual machine.
> >> Printing cat /proc/cpuinfo on the host i get http://paste.org/41663
> >> and on the guest http://paste.org/41664
> >> Sashal from the native linux kvm tool team noticed that there is the
> >> monitor cpu flag even on the guest.
> >>
> >
> > from cpuid.c:
> >
> > /* cpuid 1.ecx */
> > const u32 kvm_supported_word4_x86_features =
> > F(XMM3) | F(PCLMULQDQ) | 0 /* DTES64, MONITOR */ |
> >
> > so either the masking later on is subtly wrong, or kvm tool doesn't pass
> > it on correctly, or Linux ignores it.
> >
> > Please run the attached program on the host and post its output.
> >
> > --
> > error compiling committee.c: too many arguments to function
> >
>
> It gave me:
> func 00000000 ind 00000000 flags 00000000 -> 0000000d 756e6547 6c65746e 49656e69
> func 00000001 ind 00000000 flags 00000000 -> 000206a7 03100800 14b8220b 0f8bfbff
>
cpuid 1.ecx[3] = 1, so it's a host kernel issue.
Please try git://git.kernel.org/pub/scm/virt/kvm/kvm.git
kvm-updates/3.1, see it if fixes it for you.
--
error compiling committee.c: too many arguments to function
prev parent reply other threads:[~2011-12-01 13:59 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CAMEokbTT2hDRr_o5VNpBS4hQPKaLR1gRLZF9b_6wOEHU3-J_oA@mail.gmail.com>
2011-12-01 13:37 ` monitor flag on native kvm tool guest Daniele Carollo
2011-12-01 13:48 ` Avi Kivity
2011-12-01 13:50 ` Sasha Levin
2011-12-01 13:53 ` Avi Kivity
2011-12-01 13:54 ` Daniele Carollo
2011-12-01 13:58 ` Avi Kivity [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=4ED78821.4050208@redhat.com \
--to=avi@redhat.com \
--cc=carollo.dani@gmail.com \
--cc=kvm@vger.kernel.org \
--cc=levinsasha928@gmail.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 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).