Re: [Xen-devel] [Qemu-devel] [PATCH] compile QEMU with Xen support on ARM

[Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>]

On Sat, 5 Jul 2014, Peter Maydell wrote:
> On 4 July 2014 19:47, Stefano Stabellini
> <stefano.stabellini@xxxxxxxxxxxxx> wrote:
> > Fixes to build QEMU with Xen support on ARM and ARM64. Most fixes are
> > due to the fact that xen_pfn_t is 64-bit sized on arm32, while it is an
> > unsigned long on x86_32.
> > Although QEMU can be compiled with full emulation support, on ARM we
> > only care about the PV backends.
> 
> Were you hoping to get this into 2.1 ?

That would be ideal


> > diff --git a/xen-mapcache.c b/xen-mapcache.c
> > index eda914a..dde5ae8 100644
> > --- a/xen-mapcache.c
> > +++ b/xen-mapcache.c
> > @@ -33,10 +33,10 @@
> >  #  define DPRINTF(fmt, ...) do { } while (0)
> >  #endif
> >
> > -#if defined(__i386__)
> > +#if defined(__i386__) ||  defined(__arm__)
> >  #  define MCACHE_BUCKET_SHIFT 16
> >  #  define MCACHE_MAX_SIZE     (1UL<<31) /* 2GB Cap */
> > -#elif defined(__x86_64__)
> > +#elif defined(__x86_64__) || defined(__aarch64__)
> >  #  define MCACHE_BUCKET_SHIFT 20
> >  #  define MCACHE_MAX_SIZE     (1UL<<35) /* 32GB Cap */
> >  #endif
> 
> This shouldn't be an architecture ifdef ladder, as I pointed out
> last time around and you fixed in your previous v2. You want
> an #if HOST_LONG_BITS == 32:
> 
> http://patchwork.ozlabs.org/patch/303028/

I admit that this small series was lost in my mailbox. I had an older
version of the build fixes patch and started from there again.
Are you OK with v2 as per your link? It applies almost as is, except for
the renaming xen-all.c -> xen-hvm.c.
If your are OK with it, I'll rebase and resend with a PULL request?

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