[Bug 53361] New: Wrong CPUID data returned by KVM

[Bug 53361] New: Wrong CPUID data returned by KVM

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=53361

           Summary: Wrong CPUID data returned by KVM
           Product: Virtualization
           Version: unspecified
    Kernel Version: 3.2.0-37
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: kvm
        AssignedTo: virtualization_kvm@kernel-bugs.osdl.org
        ReportedBy: kaloqn.ganchev@gmail.com
        Regression: No


When booted like this
 kvm -cpu core2duo,+xsave -enable-kvm -m 8192 -drive file=freebsd-9.1-qcow2.img
-boot d -net nic -net user -nographic -vnc :0  -cdrom
./isos/FreeBSD-9.1-RELEASE-amd64-disc1.iso 

Freebsd crash immediately after the loader with error;

CPU0 does not support X87 or SSE2 : 0

Without the xsave instruction the FreeBSD boot as expected.
I had response from the FreeBSD developers that CPUID should return  presence
of the FPU extensions and since long mode capable CPU  , X87 and SSE2 should be
present according to Unix amd64 ABI .
It seems this is not the case when xsave flag is set.

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[Bug 53361] Wrong CPUID data returned by KVM

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=53361

Chris Harrington <ironiridis@gmail.com> changed:

           What    |Removed                     |Added
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                 CC|                            |ironiridis@gmail.com

--- Comment #1 from Chris Harrington <ironiridis@gmail.com> ---
Looks like the QEMU folks had a relevant change on this bug:

https://lists.gnu.org/archive/html/qemu-devel/2014-02/msg04140.html

Could you retest?

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[Bug 53361] Wrong CPUID data returned by KVM

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=53361

--- Comment #2 from Ian Allison <IFAllison@gmail.com> ---
seems to be working for me now.

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[Bug 53361] Wrong CPUID data returned by KVM

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=53361

Daniel Martin (consume.noise@gmail.com) changed:

           What    |Removed                     |Added
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                 CC|                            |consume.noise@gmail.com

--- Comment #3 from Daniel Martin (consume.noise@gmail.com) ---
(In reply to Ian Allison from comment #2)
> seems to be working for me now.

Could anyone close this bug, please?

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