On 12/10/2013 05:59 AM, Gleb Natapov wrote:
On Mon, Dec 09, 2013 at 01:59:41PM -0500, Binh Q. Pham wrote:
Sorry for a late response as I was distracted by another task in the
last few weeks. Today, I compiled and installed QEMU 1.7.0 from
source, but no luck with this. Tested on a different machine with
different kernel version: 3.2, I got the same results.
What do you mean by "different kernel version: 3.2"?
Oh, previously, I tried with kernel 3.10. Then I had another machine
with 3.2, so I tried QEMU 1.7.0 on both, but no luck.
Btw, I found bug 798936 which describes similar problem here:
bugzilla.redhat.com/show_bug.cgi?id=798936
it seems like this problem has been detected and resolved in the
past. Do you know what Linux distro/kernel that the bug was resolved
on? Maybe I can try that instead of using ubuntu to see if it works.
The fix is present in QEMU 1.7.0.
Thanks,
Binh
On 11/14/2013 04:08 PM, Gleb Natapov wrote:
On Thu, Nov 14, 2013 at 03:31:01PM -0500, Binh Q. Pham wrote:
My host kernel version is 3.10.17
That one surely has PMU emulation, but your guest does not see it. I blame
QEMU. Can you compile QEMU from git?
Binh
On 11/14/2013 12:21 PM, Gleb Natapov wrote:
On Thu, Nov 14, 2013 at 12:04:50PM -0500, Binh Q. Pham wrote:
cpuid output is attached.
PMU support is not advertised to the guest which means that either
QEMU is broken or your host kernel does not have PMU kvm support. What is
your host kernel version?
I didn't know that the kernel was not compiled with virtualization
support as I was using a ready image from ubuntu website to install
the VM. In the long run, are you suggesting me to recompile the
kernel for the guest to make sure that it has virtualization
support?
I am surprised ubuntu kernel does not have virtualiztion support
compiled in. May be they have separate kernel for that, but I am not
ubuntu user so cannot tell.
--
Gleb.
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Gleb.
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-Binh
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