diff options
Diffstat (limited to 'hw/s390x')
-rw-r--r-- | hw/s390x/sclp.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/hw/s390x/sclp.c b/hw/s390x/sclp.c index cb035e909b..4e0c564c5c 100644 --- a/hw/s390x/sclp.c +++ b/hw/s390x/sclp.c @@ -15,6 +15,7 @@ #include "cpu.h" #include "sysemu/kvm.h" #include "exec/memory.h" +#include "sysemu/sysemu.h" #include "hw/s390x/sclp.h" @@ -31,7 +32,26 @@ static inline S390SCLPDevice *get_event_facility(void) static void read_SCP_info(SCCB *sccb) { ReadInfo *read_info = (ReadInfo *) sccb; + CPUState *cpu; int shift = 0; + int cpu_count = 0; + int i = 0; + + CPU_FOREACH(cpu) { + cpu_count++; + } + + /* CPU information */ + read_info->entries_cpu = cpu_to_be16(cpu_count); + read_info->offset_cpu = cpu_to_be16(offsetof(ReadInfo, entries)); + read_info->highest_cpu = cpu_to_be16(max_cpus); + + for (i = 0; i < cpu_count; i++) { + read_info->entries[i].address = i; + read_info->entries[i].type = 0; + } + + read_info->facilities = cpu_to_be64(SCLP_HAS_CPU_INFO); while ((ram_size >> (20 + shift)) > 65535) { shift++; @@ -41,6 +61,34 @@ static void read_SCP_info(SCCB *sccb) sccb->h.response_code = cpu_to_be16(SCLP_RC_NORMAL_READ_COMPLETION); } +/* Provide information about the CPU */ +static void sclp_read_cpu_info(SCCB *sccb) +{ + ReadCpuInfo *cpu_info = (ReadCpuInfo *) sccb; + CPUState *cpu; + int cpu_count = 0; + int i = 0; + + CPU_FOREACH(cpu) { + cpu_count++; + } + + cpu_info->nr_configured = cpu_to_be16(cpu_count); + cpu_info->offset_configured = cpu_to_be16(offsetof(ReadCpuInfo, entries)); + cpu_info->nr_standby = cpu_to_be16(0); + + /* The standby offset is 16-byte for each CPU */ + cpu_info->offset_standby = cpu_to_be16(cpu_info->offset_configured + + cpu_info->nr_configured*sizeof(CPUEntry)); + + for (i = 0; i < cpu_count; i++) { + cpu_info->entries[i].address = i; + cpu_info->entries[i].type = 0; + } + + sccb->h.response_code = cpu_to_be16(SCLP_RC_NORMAL_READ_COMPLETION); +} + static void sclp_execute(SCCB *sccb, uint64_t code) { S390SCLPDevice *sdev = get_event_facility(); @@ -50,6 +98,9 @@ static void sclp_execute(SCCB *sccb, uint64_t code) case SCLP_CMDW_READ_SCP_INFO_FORCED: read_SCP_info(sccb); break; + case SCLP_CMDW_READ_CPU_INFO: + sclp_read_cpu_info(sccb); + break; default: sdev->sclp_command_handler(sdev->ef, sccb, code); break; |