tools: arm: increase size of region set aside for guest grant table

The current size is sufficient for the default maximum grant table size
(32-frames), but increase the reserved region to 16M/4096 pages to allow for
the use of the gnttab_max_nr_frames command line option.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Julien Grall <julien.grall@linaro.org>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>

diff --git a/xen/include/public/arch-arm.h b/xen/include/public/arch-arm.h
index fd30782b97eb395ee6956cc53f4b1ec37ab4a929..ac54cd61e0f664668b850aedda786976796e4bc8 100644 (file)
--- a/xen/include/public/arch-arm.h
+++ b/xen/include/public/arch-arm.h
@@ -369,8 +369,11 @@ typedef uint64_t xen_callback_t;
 #define GUEST_GICC_BASE   0x03002000ULL
 #define GUEST_GICC_SIZE   0x00000100ULL
 
+/* 16MB == 4096 pages reserved for guest to use as a region to map its
+ * grant table in.
+ */
 #define GUEST_GNTTAB_BASE 0x38000000ULL
-#define GUEST_GNTTAB_SIZE 0x00020000ULL
+#define GUEST_GNTTAB_SIZE 0x01000000ULL
 
 #define GUEST_MAGIC_BASE  0x39000000ULL
 #define GUEST_MAGIC_SIZE  0x01000000ULL