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Re: [Xen-devel] [Qemu-devel] Project idea: make QEMU more flexible
On Jan 6, 2014 6:55 AM, "Stefano Stabellini" <stefano.stabellini@xxxxxxxxxxxxx> wrote:
>
> On Mon, 6 Jan 2014, Anthony Liguori wrote:
> > On Jan 6, 2014 6:23 AM, "Peter Maydell" <peter.maydell@xxxxxxxxxx> wrote:
> > >
> > > On 6 January 2014 14:17, Stefano Stabellini
> > > <stefano.stabellini@xxxxxxxxxxxxx> wrote:
> > > > It doesn't do any emulation so it is not specific to any architecture or
> > > > any cpu.
> > >
> > > You presumably still care about the compiled in values of
> > > TARGET_WORDS_BIGENDIAN, TARGET_LONG_SIZE, and so on...
>
> Actually it only uses XC_PAGE_SIZE and the endianness is the host
> endianness.
If blkif in QEMU is relying on host endianness thats a bug.
>
>
> > Yup. It's still accel=xen just with no VCPUs.
>
> Are you talking about introducing accel=xen to Wei's target-null?
> I guess that would work OK.
We already have accel=xen. I'm echoing Peter's suggestion of having the ability to compile out accel=tcg.
>
> On the other hand if you are thinking of avoiding the introduction of a
> new target-null, how would you make xen_machine_pv.c available to
> multiple architectures?
Why does qdisk need a full machine?
How would you avoid the compilation of all the
> unnecessary emulated devices?
Device config files.
Regards,
Anthony Liguori
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