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authorNathan Fontenot <nfont@austin.ibm.com>2008-07-24 04:31:52 +1000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2008-07-25 15:44:43 +1000
commit22e1a4dd3f2a9009d1d8896a5e833b6094877008 (patch)
treea4ca84f39e698a3ddf4b06562a520a288131897d /arch
parenta90ab95a9576d35de0d05f9f4fc435edcccafaa9 (diff)
powerpc/pseries: Verify CMO memory entitlement updates with virtual I/O
Verify memory entitlement updates can be handled by vio. Signed-off-by: Nathan Fontenot <nfont@austin.ibm.com> Signed-off-by: Robert Jennings <rcj@linux.vnet.ibm.com> Acked-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/powerpc/kernel/lparcfg.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/lparcfg.c b/arch/powerpc/kernel/lparcfg.c
index 848c3e5a637..64381a204a5 100644
--- a/arch/powerpc/kernel/lparcfg.c
+++ b/arch/powerpc/kernel/lparcfg.c
@@ -34,6 +34,7 @@
#include <asm/time.h>
#include <asm/prom.h>
#include <asm/vdso_datapage.h>
+#include <asm/vio.h>
#define MODULE_VERS "1.8"
#define MODULE_NAME "lparcfg"
@@ -527,6 +528,15 @@ static ssize_t update_mpp(u64 *entitlement, u8 *weight)
u8 new_weight;
ssize_t rc;
+ if (entitlement) {
+ /* Check with vio to ensure the new memory entitlement
+ * can be handled.
+ */
+ rc = vio_cmo_entitlement_update(*entitlement);
+ if (rc)
+ return rc;
+ }
+
rc = h_get_mpp(&mpp_data);
if (rc)
return rc;