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Commit 22e1a4dd authored by Nathan Fontenot's avatar Nathan Fontenot Committed by Benjamin Herrenschmidt
Browse files

powerpc/pseries: Verify CMO memory entitlement updates with virtual I/O 



Verify memory entitlement updates can be handled by vio.

Signed-off-by: default avatarNathan Fontenot <nfont@austin.ibm.com>
Signed-off-by: default avatarRobert Jennings <rcj@linux.vnet.ibm.com>
Acked-by: default avatarPaul Mackerras <paulus@samba.org>
Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
parent a90ab95a

arch/powerpc/kernel/lparcfg.c

+10 −0
Original line number Diff line number Diff line
@@ -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;