libvirt users - Mar 2016 - Compiling qemu

Hi,


I've installed qemu 2.5 through the package manager. There is a bug which
blocks making an external snapshot for the second time. A fix is released:

https://lists.gnu.org/archive/html/qemu-devel/2016-01/msg06163.html


I thought, why not download the source, apply the patch, build + make and then
copy qemu-system-x86_64 to the /usr/bin/ folder.....


But if I do 'virsh start my_vm',  I get these errors:

fout: internal error: early end of file from monitor, possible problem: warning:
host doesn't support requested feature: CPUID.80000001H:ECX.svm [bit 2]
warning: host doesn't support requested feature: CPUID.80000001H:ECX.svm
[bit 2]
qemu: could not load PC BIOS 'bios-256k.bin'


First:

What can I do about the 'host doesn't support requested feature'?


Second:

I think the compiled binary doesn't look for the bios-256k.bin in the right
place?


Help wil be much apreciated...


Greetings,


Dominique.

On Mon, Mar 07, 2016 at 06:04:34PM +0000, Dominique Ramaekers
wrote:
>Hi,
>
>
>I've installed qemu 2.5 through the package manager. There is a bug
which blocks making an external snapshot for the second time. A fix is released:
>
>https://lists.gnu.org/archive/html/qemu-devel/2016-01/msg06163.html
>
>
>I thought, why not download the source, apply the patch, build + make and
then copy qemu-system-x86_64 to the /usr/bin/ folder.....
>
have you, instead of copying that one binary, tried doing make install?
Are you sure you configured qemu properly?  Did you build all the
necessary submodules?  I'm not sure how it goes with the tarball, I only
compiled from git AFAICR, but at least make install should help way more
than just copying that one binary.
>
>But if I do 'virsh start my_vm',  I get these errors:
>
>fout: internal error: early end of file from monitor, possible problem:
warning: host doesn't support requested feature: CPUID.80000001H:ECX.svm
[bit 2]
>warning: host doesn't support requested feature: CPUID.80000001H:ECX.svm
[bit 2]
>qemu: could not load PC BIOS 'bios-256k.bin'
>
>
>First:
>
>What can I do about the 'host doesn't support requested
feature'?
>
>
>Second:
>
>I think the compiled binary doesn't look for the bios-256k.bin in the
right place?
>
>
>Help wil be much apreciated...
>
>
>Greetings,
>
>
>Dominique.
>
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