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[Xen-devel,v3,8/8] tools: arm: increase size of region set aside for guest grant table

Message ID 1398690132-5651-8-git-send-email-ian.campbell@citrix.com
State Accepted
Commit 0af0306c2700dee81280a0eb1034a2c706d11968
Headers show

Commit Message

Ian Campbell April 28, 2014, 1:02 p.m. UTC 
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>
---
v2: New patch
---
 xen/include/public/arch-arm.h |    5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

Comments

Ian Jackson May 2, 2014, 2:57 p.m. UTC | #1 
Ian Campbell writes ("[PATCH v3 8/8] 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>

As before, I'm not qualified to judge the merits, but from a tools hat
pov this is fine.

Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>

Ian.
diff mbox

Patch

diff --git a/xen/include/public/arch-arm.h b/xen/include/public/arch-arm.h
index 749b7b3..9f923dc 100644
--- 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