xen: build on ARM
Collection of fixes to build QEMU with Xen support on ARM:
- use xenstore_read_fe_uint64 to retrieve the page-ref (xenfb);
- use xen_pfn_t instead of unsigned long in xenfb;
- unsigned long/xenpfn_t in xen_remove_from_physmap;
- in xen-mapcache.c use HOST_LONG_BITS to check for QEMU's address space
size.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
diff --git a/xen-mapcache.c b/xen-mapcache.c
index eda914a..66da1a6 100644
--- a/xen-mapcache.c
+++ b/xen-mapcache.c
@@ -33,10 +33,10 @@
# define DPRINTF(fmt, ...) do { } while (0)
#endif
-#if defined(__i386__)
+#if HOST_LONG_BITS == 32
# define MCACHE_BUCKET_SHIFT 16
# define MCACHE_MAX_SIZE (1UL<<31) /* 2GB Cap */
-#elif defined(__x86_64__)
+#else
# define MCACHE_BUCKET_SHIFT 20
# define MCACHE_MAX_SIZE (1UL<<35) /* 32GB Cap */
#endif