diff options
| -rw-r--r-- | target-s390x/cpu.h | 1 | ||||
| -rw-r--r-- | target-s390x/kvm.c | 55 |
2 files changed, 56 insertions, 0 deletions
diff --git a/target-s390x/cpu.h b/target-s390x/cpu.h index 708349ca04..031f94dc40 100644 --- a/target-s390x/cpu.h +++ b/target-s390x/cpu.h @@ -945,6 +945,7 @@ struct sysib_322 { #define SIGP_SET_PREFIX 0x0d #define SIGP_STORE_STATUS_ADDR 0x0e #define SIGP_SET_ARCH 0x12 +#define SIGP_STORE_ADTL_STATUS 0x17 /* SIGP condition codes */ #define SIGP_CC_ORDER_CODE_ACCEPTED 0 diff --git a/target-s390x/kvm.c b/target-s390x/kvm.c index ca8ffcc2a9..61e1321a4b 100644 --- a/target-s390x/kvm.c +++ b/target-s390x/kvm.c @@ -1373,6 +1373,28 @@ static void sigp_stop(void *arg) si->cc = SIGP_CC_ORDER_CODE_ACCEPTED; } +#define ADTL_SAVE_AREA_SIZE 1024 +static int kvm_s390_store_adtl_status(S390CPU *cpu, hwaddr addr) +{ + void *mem; + hwaddr len = ADTL_SAVE_AREA_SIZE; + + mem = cpu_physical_memory_map(addr, &len, 1); + if (!mem) { + return -EFAULT; + } + if (len != ADTL_SAVE_AREA_SIZE) { + cpu_physical_memory_unmap(mem, len, 1, 0); + return -EFAULT; + } + + memcpy(mem, &cpu->env.vregs, 512); + + cpu_physical_memory_unmap(mem, len, 1, len); + + return 0; +} + #define KVM_S390_STORE_STATUS_DEF_ADDR offsetof(LowCore, floating_pt_save_area) #define SAVE_AREA_SIZE 512 static int kvm_s390_store_status(S390CPU *cpu, hwaddr addr, bool store_arch) @@ -1461,6 +1483,36 @@ static void sigp_store_status_at_address(void *arg) si->cc = SIGP_CC_ORDER_CODE_ACCEPTED; } +static void sigp_store_adtl_status(void *arg) +{ + SigpInfo *si = arg; + + if (!kvm_check_extension(kvm_state, KVM_CAP_S390_VECTOR_REGISTERS)) { + set_sigp_status(si, SIGP_STAT_INVALID_ORDER); + return; + } + + /* cpu has to be stopped */ + if (s390_cpu_get_state(si->cpu) != CPU_STATE_STOPPED) { + set_sigp_status(si, SIGP_STAT_INCORRECT_STATE); + return; + } + + /* parameter must be aligned to 1024-byte boundary */ + if (si->param & 0x3ff) { + set_sigp_status(si, SIGP_STAT_INVALID_PARAMETER); + return; + } + + cpu_synchronize_state(CPU(si->cpu)); + + if (kvm_s390_store_adtl_status(si->cpu, si->param)) { + set_sigp_status(si, SIGP_STAT_INVALID_PARAMETER); + return; + } + si->cc = SIGP_CC_ORDER_CODE_ACCEPTED; +} + static void sigp_restart(void *arg) { SigpInfo *si = arg; @@ -1578,6 +1630,9 @@ static int handle_sigp_single_dst(S390CPU *dst_cpu, uint8_t order, case SIGP_STORE_STATUS_ADDR: run_on_cpu(CPU(dst_cpu), sigp_store_status_at_address, &si); break; + case SIGP_STORE_ADTL_STATUS: + run_on_cpu(CPU(dst_cpu), sigp_store_adtl_status, &si); + break; case SIGP_SET_PREFIX: run_on_cpu(CPU(dst_cpu), sigp_set_prefix, &si); break; |