powerpc/pseries: Add memory entitlement capabilities to /proc/ppc64/lparcfg

Update /proc/ppc64/lparcfg to display Cooperative Memory
Overcommitment statistics as reported by the H_GET_MPP hcall.  This
also updates the lparcfg interface to allow setting memory entitlement
and weight.

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>

1 files changed, 17 insertions, 1 deletions

diff --git a/include/asm-powerpc/hvcall.h b/include/asm-powerpc/hvcall.h
index bf6cd7cb996c..46e76456cbbd 100644
--- a/include/asm-powerpc/hvcall.h
+++ b/include/asm-powerpc/hvcall.h
@@ -210,7 +210,9 @@
 #define H_JOIN                  0x298
 #define H_VASI_STATE            0x2A4
 #define H_ENABLE_CRQ            0x2B0
-#define MAX_HCALL_OPCODE        H_ENABLE_CRQ
+#define H_SET_MPP               0x2D0
+#define H_GET_MPP               0x2D4
+#define MAX_HCALL_OPCODE        H_GET_MPP
 
 #ifndef __ASSEMBLY__
 
@@ -270,6 +272,20 @@ struct hcall_stats {
 };
 #define HCALL_STAT_ARRAY_SIZE   ((MAX_HCALL_OPCODE >> 2) + 1)
 
+struct hvcall_mpp_data {
+        unsigned long entitled_mem;
+        unsigned long mapped_mem;
+        unsigned short group_num;
+        unsigned short pool_num;
+        unsigned char mem_weight;
+        unsigned char unallocated_mem_weight;
+        unsigned long unallocated_entitlement;  /* value in bytes */
+        unsigned long pool_size;
+        signed long loan_request;
+        unsigned long backing_mem;
+};
+
+int h_get_mpp(struct hvcall_mpp_data *);
 #endif /* __ASSEMBLY__ */
 #endif /* __KERNEL__ */
 #endif /* _ASM_POWERPC_HVCALL_H */