[PATCH 11/16 v4] powerpc: Verify CMO memory entitlement updates with virtual I/O

=46rom: Nathan Fontenot [off-list ref]

Verify memory entitlement updates can be handled by vio.

Signed-off-by: Nathan Fontenot <redacted>
Signed-off-by: Robert Jennings <redacted>

---
 arch/powerpc/kernel/lparcfg.c |   10 ++++++++++
 1 file changed, 10 insertions(+)

Index: b/arch/powerpc/kernel/lparcfg.c
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=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

--- 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>

=20
 #define MODULE_VERS "1.8"
 #define MODULE_NAME "lparcfg"

@@ -527,6 +528,15 @@ static ssize_t update_mpp(u64 *entitleme
 	u8 new_weight;
 	ssize_t rc;

=20
+	if (entitlement) {
+		/* Check with vio to ensure the new memory entitlement
+		 * can be handled.
+		 */
+		rc =3D vio_cmo_entitlement_update(*entitlement);
+		if (rc)
+			return rc;
+	}
+
 	rc =3D h_get_mpp(&mpp_data);
 	if (rc)
 		return rc;