This patch updates the output from /proc/ppc64/lparcfg to display the
processor virtualization resource allocations for a shared processor
partition.
This information is already gathered via the h_get_ppp call, we just
have to make sure that the ibm,partition-performance-parameters-level
property is >= 1 to ensure that the information is valid.
Signed-off-by: Nathan Fontenot <nf...@austin.ibm.com>
---
Index: linux-2.6/arch/powerpc/kernel/lparcfg.c
===================================================================
--- linux-2.6.orig/arch/powerpc/kernel/lparcfg.c 2009-05-21
10:24:57.000000000 -0500
+++ linux-2.6/arch/powerpc/kernel/lparcfg.c 2009-05-26 11:06:59.000000000
-0500
@@ -169,6 +169,9 @@
u8 unallocated_weight;
u16 active_procs_in_pool;
u16 active_system_procs;
+ u16 phys_platform_procs;
+ u32 max_proc_cap_avail;
+ u32 entitled_proc_cap_avail;
};
/*
@@ -190,13 +193,18 @@
* XX - Unallocated Variable Processor Capacity Weight.
* XXXX - Active processors in Physical Processor Pool.
* XXXX - Processors active on platform.
+ * R8 (QQQQRRRRRRSSSSSS). if ibm,partition-performance-parameters-level >= 1
+ * XXXX - Physical platform procs allocated to virtualization.
+ * XXXXXX - Max procs capacity % available to the partitions pool.
+ * XXXXXX - Entitled procs capacity % available to the
+ * partitions pool.
*/
static unsigned int h_get_ppp(struct hvcall_ppp_data *ppp_data)
{
unsigned long rc;
- unsigned long retbuf[PLPAR_HCALL_BUFSIZE];
+ unsigned long retbuf[PLPAR_HCALL9_BUFSIZE];
- rc = plpar_hcall(H_GET_PPP, retbuf);
+ rc = plpar_hcall9(H_GET_PPP, retbuf);
ppp_data->entitlement = retbuf[0];
ppp_data->unallocated_entitlement = retbuf[1];
@@ -210,6 +218,10 @@
ppp_data->active_procs_in_pool = (retbuf[3] >> 2 * 8) & 0xffff;
ppp_data->active_system_procs = retbuf[3] & 0xffff;
+ ppp_data->phys_platform_procs = retbuf[4] >> 6 * 8;
+ ppp_data->max_proc_cap_avail = (retbuf[4] >> 3 * 8) & 0xffffff;
+ ppp_data->entitled_proc_cap_avail = retbuf[4] & 0xffffff;
+
return rc;
}
@@ -234,6 +246,8 @@
static void parse_ppp_data(struct seq_file *m)
{
struct hvcall_ppp_data ppp_data;
+ struct device_node *root;
+ const int *perf_level;
int rc;
rc = h_get_ppp(&ppp_data);
@@ -267,6 +281,28 @@
seq_printf(m, "capped=%d\n", ppp_data.capped);
seq_printf(m, "unallocated_capacity=%lld\n",
ppp_data.unallocated_entitlement);
+
+ /* The last bits of information returned from h_get_ppp are only
+ * valid if the ibm,partition-performance-parameters-level
+ * property is >= 1.
+ */
+ root = of_find_node_by_path("/");
+ if (root) {
+ perf_level = of_get_property(root,
+ "ibm,partition-performance-parameters-level",
+ NULL);
+ if (*perf_level >= 1) {
+ seq_printf(m,
+ "physical_procs_allocated_to_virtualization=%d\n",
+ ppp_data.phys_platform_procs);
+ seq_printf(m, "max_proc_capacity_available=%d\n",
+ ppp_data.max_proc_cap_avail);
+ seq_printf(m, "entitled_proc_capacity_available=%d\n",
+ ppp_data.entitled_proc_cap_avail);
+ }
+
+ of_node_put(root);
+ }
}
/**
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