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[Qemu-devel] [PATCH v2 4/4] spapr: Add RTAS sysparm SPLPAR Characteristi
From: |
Sam Bobroff |
Subject: |
[Qemu-devel] [PATCH v2 4/4] spapr: Add RTAS sysparm SPLPAR Characteristics |
Date: |
Wed, 25 Jun 2014 13:54:32 +1000 |
Add support for the SPLPAR Characteristics parameter to the emulated
RTAS call ibm,get-system-parameter.
The support provides just enough information to allow "cat
/proc/powerpc/lparcfg" to succeed without generating a kernel error
message.
Without this patch the above command will produce the following kernel
message: arch/powerpc/platforms/pseries/lparcfg.c \
parse_system_parameter_string Error calling get-system-parameter \
(0xfffffffd)
Signed-off-by: Sam Bobroff <address@hidden>
---
hw/ppc/spapr_rtas.c | 8 ++++++++
include/hw/ppc/spapr.h | 1 +
2 files changed, 9 insertions(+)
diff --git a/hw/ppc/spapr_rtas.c b/hw/ppc/spapr_rtas.c
index 9804873..a58abe6 100644
--- a/hw/ppc/spapr_rtas.c
+++ b/hw/ppc/spapr_rtas.c
@@ -236,6 +236,13 @@ static void rtas_ibm_get_system_parameter(PowerPCCPU *cpu,
target_ulong ret = RTAS_OUT_SUCCESS;
switch (parameter) {
+ case RTAS_SYSPARM_SPLPAR_CHARACTERISTICS: {
+ char *param_val = g_strdup_printf("MaxEntCap=%d,MaxPlatProcs=%d",
+ max_cpus, smp_cpus);
+ rtas_st_buffer(buffer, length, (uint8_t *)param_val,
strlen(param_val));
+ g_free(param_val);
+ break;
+ }
case RTAS_SYSPARM_DIAGNOSTICS_RUN_MODE: {
uint8_t param_val = DIAGNOSTICS_RUN_MODE_DISABLED;
@@ -262,6 +269,7 @@ static void rtas_ibm_set_system_parameter(PowerPCCPU *cpu,
target_ulong ret = RTAS_OUT_NOT_SUPPORTED;
switch (parameter) {
+ case RTAS_SYSPARM_SPLPAR_CHARACTERISTICS:
case RTAS_SYSPARM_DIAGNOSTICS_RUN_MODE:
case RTAS_SYSPARM_UUID:
ret = RTAS_OUT_NOT_AUTHORIZED;
diff --git a/include/hw/ppc/spapr.h b/include/hw/ppc/spapr.h
index fe02fb4..c67dc22 100644
--- a/include/hw/ppc/spapr.h
+++ b/include/hw/ppc/spapr.h
@@ -359,6 +359,7 @@ static inline int spapr_allocate_lsi(int hint)
#define RTAS_OUT_NOT_AUTHORIZED -9002
/* RTAS ibm,get-system-parameter token values */
+#define RTAS_SYSPARM_SPLPAR_CHARACTERISTICS 20
#define RTAS_SYSPARM_DIAGNOSTICS_RUN_MODE 42
#define RTAS_SYSPARM_UUID 48
--
1.9.0