Re: [libvirt] [PATCH v3 2/2] qemu: add hv_vapic and hv_spinlocks support
On 06/06/2013 11:01 AM, Peter Krempa wrote:
On 06/05/13 17:50, Ján Tomko wrote:
> Add new CPU flags for HyperV:
> hv_vapic for virtual APIC support
> hv_spinlocks for spinlock support
>
> XML:
> <features>
> <hyperv>
> <vapic state='on'/>
> <spinlocks>0xFFFF</spinlocks>
Is the Microsoft documentation for this feature use hex values?
It uses 0xFFFFFFFF as the special value meaning "no retries" [1]
QEMU uses hex values too, but it parses the number with strtoul and base 0
(just as we do), meaning decimal and octal values are allowed too.
> </hyperv>
> </features>
>
> results in the following QEMU command line:
> qemu -cpu <cpu_model>,hv_vapic,hv_spinlocks=0xffff
>
> https://bugzilla.redhat.com/show_bug.cgi?id=784836
> ---
Jan
[1] http://www.microsoft.com/en-us/download/details.aspx?displaylang=en&i...