diff options
| author | Sam bobroff <sam.bobroff@au1.ibm.com> | 2014-06-25 13:54:32 +1000 |
|---|---|---|
| committer | Alexander Graf <agraf@suse.de> | 2014-06-27 13:48:26 +0200 |
| commit | 3b50d8974b979bbaa091978e70d83de939593d1f (patch) | |
| tree | 9e02f9bff77b6ac9da3ce9146931c3013cce03ec | |
| parent | b907d7b0fdc8b2bbb93a37ac4b5c68a44f22e8ac (diff) | |
| download | qemu-3b50d8974b979bbaa091978e70d83de939593d1f.tar.gz | |
spapr: Add RTAS sysparm SPLPAR Characteristics
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 <sam.bobroff@au1.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
| -rw-r--r-- | hw/ppc/spapr_rtas.c | 8 | ||||
| -rw-r--r-- | include/hw/ppc/spapr.h | 1 |
2 files changed, 9 insertions, 0 deletions
diff --git a/hw/ppc/spapr_rtas.c b/hw/ppc/spapr_rtas.c index dba4e2b20b..9ba1ba69f9 100644 --- a/hw/ppc/spapr_rtas.c +++ b/hw/ppc/spapr_rtas.c @@ -234,6 +234,13 @@ 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; @@ -260,6 +267,7 @@ 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 46b7a71734..3b6ccd395a 100644 --- a/include/hw/ppc/spapr.h +++ b/include/hw/ppc/spapr.h @@ -398,6 +398,7 @@ static inline int spapr_allocate_lsi(int hint) #define RTAS_TOKEN_MAX (RTAS_TOKEN_BASE + 0x21) /* 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 |