This patch adds the functionality for
rtas_ibm_get_system_parameter to return a string containing
the values for partition_max_entitled_capacity and
system_potential_processors.
Signed-off-by: Tomo Berry <tbbe...@us.ibm.com>
---
V1->V2:
changed memory allocation to glib calls
I'm not sure if this is meant for 2.1 or not
hw/ppc/spapr_rtas.c | 32 ++++++++++++++++++++++++++++++++
include/hw/ppc/spapr.h | 13 +++++++++++++
2 files changed, 45 insertions(+)
diff --git a/hw/ppc/spapr_rtas.c b/hw/ppc/spapr_rtas.c
index 1cb276d..734ebc0 100644
--- a/hw/ppc/spapr_rtas.c
+++ b/hw/ppc/spapr_rtas.c
@@ -225,6 +225,9 @@ static void rtas_stop_self(PowerPCCPU *cpu,
sPAPREnvironment *spapr,
}
#define DIAGNOSTICS_RUN_MODE 42
+#define SPLPAR_CHARACTERISTICS_TOKEN 20
+#define CMO_CHARACTERISTICS_TOKEN 44
+#define CEDE_LATENCY_TOKEN 45
static void rtas_ibm_get_system_parameter(PowerPCCPU *cpu,
sPAPREnvironment *spapr,
@@ -236,6 +239,7 @@ static void rtas_ibm_get_system_parameter(PowerPCCPU *cpu,
target_ulong buffer = rtas_ld(args, 1);
target_ulong length = rtas_ld(args, 2);
target_ulong ret = RTAS_OUT_NOT_SUPPORTED;
+ char *local_buffer;
switch (parameter) {
case DIAGNOSTICS_RUN_MODE:
@@ -244,6 +248,34 @@ static void rtas_ibm_get_system_parameter(PowerPCCPU *cpu,
ret = RTAS_OUT_SUCCESS;
}
break;
+ case SPLPAR_CHARACTERISTICS_TOKEN:
+
+ /* Create a string of length bytes locally to copy to buffer */
+
+ local_buffer = g_malloc0(length);
+
+ /* These are the current system parameters supported. The first
+ * 16 bits of the buffer must contain the length of the string.
+ * These 16 bits are not included in the length of the string.
+ */
+
+ ((uint16_t *)local_buffer)[0] = cpu_to_be16(snprintf(local_buffer + 2,
+ length - 2, "MaxEntCap=%d,MaxPlatProcs=%d", max_cpus, smp_cpus));
+
+ rtas_st_buffer(buffer, length, (uint8_t *)local_buffer);
+
+ g_free(local_buffer);
+ ret = RTAS_OUT_SUCCESS;
+ break;
+ case CMO_CHARACTERISTICS_TOKEN:
+ ret = RTAS_OUT_NOT_SUPPORTED;
+ break;
+ case CEDE_LATENCY_TOKEN:
+ ret = RTAS_OUT_NOT_SUPPORTED;
+ break;
+ default:
+ ret = RTAS_OUT_NOT_SUPPORTED;
+ break;
}
rtas_st(rets, 0, ret);
diff --git a/include/hw/ppc/spapr.h b/include/hw/ppc/spapr.h
index b2f11e9..bf5b528 100644
--- a/include/hw/ppc/spapr.h
+++ b/include/hw/ppc/spapr.h
@@ -356,6 +356,19 @@ static inline void rtas_st(target_ulong phys, int n,
uint32_t val)
stl_be_phys(ppc64_phys_to_real(phys + 4*n), val);
}
+/* This function will store a buffer 1 byte at a time into the
+ * address at phys up to a maximum of phys_len bytes.*/
+
+static inline void rtas_st_buffer(target_ulong phys,
+ target_ulong phys_len,
+ uint8_t *buffer)
+{
+ uint32_t i;
+ for (i = 0; i < phys_len; i++) {
+ stb_phys(ppc64_phys_to_real(phys + i), buffer[i]);
+ }
+}
+
typedef void (*spapr_rtas_fn)(PowerPCCPU *cpu, sPAPREnvironment *spapr,
uint32_t token,
uint32_t nargs, target_ulong args,
--
1.8.3.1
