CPUPPCState currently contains a number of fields containing the state of the VPA. The VPA is a PAPR specific concept covering several guest/host shared memory areas used to communicate some information with the hypervisor.
As a PAPR concept this is really machine specific information, although it is per-cpu, so it doesn't really belong in the core CPU state structure. There's also other information that's per-cpu, but platform/machine specific. So create a (void *)machine_data in PowerPCCPU which can be used by the machine to locate per-cpu data. Intialization, lifetime and cleanup of machine_data is entirely up to the machine type. Signed-off-by: David Gibson <da...@gibson.dropbear.id.au> Reviewed-by: Greg Kurz <gr...@kaod.org> Tested-by: Greg Kurz <gr...@kaod.org> --- hw/ppc/spapr_cpu_core.c | 13 ++++++ hw/ppc/spapr_hcall.c | 77 ++++++++++++++++++--------------- include/hw/ppc/spapr_cpu_core.h | 11 +++++ target/ppc/cpu.h | 7 +-- target/ppc/kvm.c | 39 +++++++++-------- target/ppc/translate_init.inc.c | 8 ---- 6 files changed, 88 insertions(+), 67 deletions(-) diff --git a/hw/ppc/spapr_cpu_core.c b/hw/ppc/spapr_cpu_core.c index 98a018c8d0..aef3be33a3 100644 --- a/hw/ppc/spapr_cpu_core.c +++ b/hw/ppc/spapr_cpu_core.c @@ -28,6 +28,7 @@ static void spapr_cpu_reset(void *opaque) CPUState *cs = CPU(cpu); CPUPPCState *env = &cpu->env; PowerPCCPUClass *pcc = POWERPC_CPU_GET_CLASS(cpu); + sPAPRCPUState *spapr_cpu = spapr_cpu_state(cpu); target_ulong lpcr; cpu_reset(cs); @@ -69,6 +70,12 @@ static void spapr_cpu_reset(void *opaque) /* Set a full AMOR so guest can use the AMR as it sees fit */ env->spr[SPR_AMOR] = 0xffffffffffffffffull; + + spapr_cpu->vpa_addr = 0; + spapr_cpu->slb_shadow_addr = 0; + spapr_cpu->slb_shadow_size = 0; + spapr_cpu->dtl_addr = 0; + spapr_cpu->dtl_size = 0; } void spapr_cpu_set_entry_state(PowerPCCPU *cpu, target_ulong nip, target_ulong r3) @@ -186,6 +193,8 @@ static PowerPCCPU *spapr_create_vcpu(sPAPRCPUCore *sc, int i, Error **errp) goto err; } + cpu->machine_data = g_new0(sPAPRCPUState, 1); + object_unref(obj); return cpu; @@ -197,6 +206,10 @@ err: static void spapr_delete_vcpu(PowerPCCPU *cpu) { + sPAPRCPUState *spapr_cpu = spapr_cpu_state(cpu); + + cpu->machine_data = NULL; + g_free(spapr_cpu); object_unparent(OBJECT(cpu)); } diff --git a/hw/ppc/spapr_hcall.c b/hw/ppc/spapr_hcall.c index 8b9a4b577f..ae913d070f 100644 --- a/hw/ppc/spapr_hcall.c +++ b/hw/ppc/spapr_hcall.c @@ -8,6 +8,7 @@ #include "exec/exec-all.h" #include "helper_regs.h" #include "hw/ppc/spapr.h" +#include "hw/ppc/spapr_cpu_core.h" #include "mmu-hash64.h" #include "cpu-models.h" #include "trace.h" @@ -908,9 +909,11 @@ unmap_out: #define VPA_SHARED_PROC_OFFSET 0x9 #define VPA_SHARED_PROC_VAL 0x2 -static target_ulong register_vpa(CPUPPCState *env, target_ulong vpa) +static target_ulong register_vpa(PowerPCCPU *cpu, target_ulong vpa) { - CPUState *cs = CPU(ppc_env_get_cpu(env)); + CPUState *cs = CPU(cpu); + CPUPPCState *env = &cpu->env; + sPAPRCPUState *spapr_cpu = spapr_cpu_state(cpu); uint16_t size; uint8_t tmp; @@ -935,32 +938,34 @@ static target_ulong register_vpa(CPUPPCState *env, target_ulong vpa) return H_PARAMETER; } - env->vpa_addr = vpa; + spapr_cpu->vpa_addr = vpa; - tmp = ldub_phys(cs->as, env->vpa_addr + VPA_SHARED_PROC_OFFSET); + tmp = ldub_phys(cs->as, spapr_cpu->vpa_addr + VPA_SHARED_PROC_OFFSET); tmp |= VPA_SHARED_PROC_VAL; - stb_phys(cs->as, env->vpa_addr + VPA_SHARED_PROC_OFFSET, tmp); + stb_phys(cs->as, spapr_cpu->vpa_addr + VPA_SHARED_PROC_OFFSET, tmp); return H_SUCCESS; } -static target_ulong deregister_vpa(CPUPPCState *env, target_ulong vpa) +static target_ulong deregister_vpa(PowerPCCPU *cpu, target_ulong vpa) { - if (env->slb_shadow_addr) { + sPAPRCPUState *spapr_cpu = spapr_cpu_state(cpu); + + if (spapr_cpu->slb_shadow_addr) { return H_RESOURCE; } - if (env->dtl_addr) { + if (spapr_cpu->dtl_addr) { return H_RESOURCE; } - env->vpa_addr = 0; + spapr_cpu->vpa_addr = 0; return H_SUCCESS; } -static target_ulong register_slb_shadow(CPUPPCState *env, target_ulong addr) +static target_ulong register_slb_shadow(PowerPCCPU *cpu, target_ulong addr) { - CPUState *cs = CPU(ppc_env_get_cpu(env)); + sPAPRCPUState *spapr_cpu = spapr_cpu_state(cpu); uint32_t size; if (addr == 0) { @@ -968,7 +973,7 @@ static target_ulong register_slb_shadow(CPUPPCState *env, target_ulong addr) return H_HARDWARE; } - size = ldl_be_phys(cs->as, addr + 0x4); + size = ldl_be_phys(CPU(cpu)->as, addr + 0x4); if (size < 0x8) { return H_PARAMETER; } @@ -977,26 +982,28 @@ static target_ulong register_slb_shadow(CPUPPCState *env, target_ulong addr) return H_PARAMETER; } - if (!env->vpa_addr) { + if (!spapr_cpu->vpa_addr) { return H_RESOURCE; } - env->slb_shadow_addr = addr; - env->slb_shadow_size = size; + spapr_cpu->slb_shadow_addr = addr; + spapr_cpu->slb_shadow_size = size; return H_SUCCESS; } -static target_ulong deregister_slb_shadow(CPUPPCState *env, target_ulong addr) +static target_ulong deregister_slb_shadow(PowerPCCPU *cpu, target_ulong addr) { - env->slb_shadow_addr = 0; - env->slb_shadow_size = 0; + sPAPRCPUState *spapr_cpu = spapr_cpu_state(cpu); + + spapr_cpu->slb_shadow_addr = 0; + spapr_cpu->slb_shadow_size = 0; return H_SUCCESS; } -static target_ulong register_dtl(CPUPPCState *env, target_ulong addr) +static target_ulong register_dtl(PowerPCCPU *cpu, target_ulong addr) { - CPUState *cs = CPU(ppc_env_get_cpu(env)); + sPAPRCPUState *spapr_cpu = spapr_cpu_state(cpu); uint32_t size; if (addr == 0) { @@ -1004,26 +1011,28 @@ static target_ulong register_dtl(CPUPPCState *env, target_ulong addr) return H_HARDWARE; } - size = ldl_be_phys(cs->as, addr + 0x4); + size = ldl_be_phys(CPU(cpu)->as, addr + 0x4); if (size < 48) { return H_PARAMETER; } - if (!env->vpa_addr) { + if (!spapr_cpu->vpa_addr) { return H_RESOURCE; } - env->dtl_addr = addr; - env->dtl_size = size; + spapr_cpu->dtl_addr = addr; + spapr_cpu->dtl_size = size; return H_SUCCESS; } -static target_ulong deregister_dtl(CPUPPCState *env, target_ulong addr) +static target_ulong deregister_dtl(PowerPCCPU *cpu, target_ulong addr) { - env->dtl_addr = 0; - env->dtl_size = 0; + sPAPRCPUState *spapr_cpu = spapr_cpu_state(cpu); + + spapr_cpu->dtl_addr = 0; + spapr_cpu->dtl_size = 0; return H_SUCCESS; } @@ -1035,38 +1044,36 @@ static target_ulong h_register_vpa(PowerPCCPU *cpu, sPAPRMachineState *spapr, target_ulong procno = args[1]; target_ulong vpa = args[2]; target_ulong ret = H_PARAMETER; - CPUPPCState *tenv; PowerPCCPU *tcpu; tcpu = spapr_find_cpu(procno); if (!tcpu) { return H_PARAMETER; } - tenv = &tcpu->env; switch (flags) { case FLAGS_REGISTER_VPA: - ret = register_vpa(tenv, vpa); + ret = register_vpa(tcpu, vpa); break; case FLAGS_DEREGISTER_VPA: - ret = deregister_vpa(tenv, vpa); + ret = deregister_vpa(tcpu, vpa); break; case FLAGS_REGISTER_SLBSHADOW: - ret = register_slb_shadow(tenv, vpa); + ret = register_slb_shadow(tcpu, vpa); break; case FLAGS_DEREGISTER_SLBSHADOW: - ret = deregister_slb_shadow(tenv, vpa); + ret = deregister_slb_shadow(tcpu, vpa); break; case FLAGS_REGISTER_DTL: - ret = register_dtl(tenv, vpa); + ret = register_dtl(tcpu, vpa); break; case FLAGS_DEREGISTER_DTL: - ret = deregister_dtl(tenv, vpa); + ret = deregister_dtl(tcpu, vpa); break; } diff --git a/include/hw/ppc/spapr_cpu_core.h b/include/hw/ppc/spapr_cpu_core.h index 47dcfda12b..8ceea2973a 100644 --- a/include/hw/ppc/spapr_cpu_core.h +++ b/include/hw/ppc/spapr_cpu_core.h @@ -41,4 +41,15 @@ typedef struct sPAPRCPUCoreClass { const char *spapr_get_cpu_core_type(const char *cpu_type); void spapr_cpu_set_entry_state(PowerPCCPU *cpu, target_ulong nip, target_ulong r3); +typedef struct sPAPRCPUState { + uint64_t vpa_addr; + uint64_t slb_shadow_addr, slb_shadow_size; + uint64_t dtl_addr, dtl_size; +} sPAPRCPUState; + +static inline sPAPRCPUState *spapr_cpu_state(PowerPCCPU *cpu) +{ + return (sPAPRCPUState *)cpu->machine_data; +} + #endif diff --git a/target/ppc/cpu.h b/target/ppc/cpu.h index a91f1a8777..874da6efbc 100644 --- a/target/ppc/cpu.h +++ b/target/ppc/cpu.h @@ -1091,12 +1091,6 @@ struct CPUPPCState { target_ulong rmls; #endif -#if defined(TARGET_PPC64) && !defined(CONFIG_USER_ONLY) - uint64_t vpa_addr; - uint64_t slb_shadow_addr, slb_shadow_size; - uint64_t dtl_addr, dtl_size; -#endif /* TARGET_PPC64 */ - int error_code; uint32_t pending_interrupts; #if !defined(CONFIG_USER_ONLY) @@ -1205,6 +1199,7 @@ struct PowerPCCPU { uint32_t compat_pvr; PPCVirtualHypervisor *vhyp; Object *intc; + void *machine_data; int32_t node_id; /* NUMA node this CPU belongs to */ PPCHash64Options *hash64_opts; diff --git a/target/ppc/kvm.c b/target/ppc/kvm.c index 7fe9d0126b..5c0e313ca6 100644 --- a/target/ppc/kvm.c +++ b/target/ppc/kvm.c @@ -829,22 +829,22 @@ static int kvm_get_fp(CPUState *cs) static int kvm_get_vpa(CPUState *cs) { PowerPCCPU *cpu = POWERPC_CPU(cs); - CPUPPCState *env = &cpu->env; + sPAPRCPUState *spapr_cpu = spapr_cpu_state(cpu); struct kvm_one_reg reg; int ret; reg.id = KVM_REG_PPC_VPA_ADDR; - reg.addr = (uintptr_t)&env->vpa_addr; + reg.addr = (uintptr_t)&spapr_cpu->vpa_addr; ret = kvm_vcpu_ioctl(cs, KVM_GET_ONE_REG, ®); if (ret < 0) { DPRINTF("Unable to get VPA address from KVM: %s\n", strerror(errno)); return ret; } - assert((uintptr_t)&env->slb_shadow_size - == ((uintptr_t)&env->slb_shadow_addr + 8)); + assert((uintptr_t)&spapr_cpu->slb_shadow_size + == ((uintptr_t)&spapr_cpu->slb_shadow_addr + 8)); reg.id = KVM_REG_PPC_VPA_SLB; - reg.addr = (uintptr_t)&env->slb_shadow_addr; + reg.addr = (uintptr_t)&spapr_cpu->slb_shadow_addr; ret = kvm_vcpu_ioctl(cs, KVM_GET_ONE_REG, ®); if (ret < 0) { DPRINTF("Unable to get SLB shadow state from KVM: %s\n", @@ -852,9 +852,10 @@ static int kvm_get_vpa(CPUState *cs) return ret; } - assert((uintptr_t)&env->dtl_size == ((uintptr_t)&env->dtl_addr + 8)); + assert((uintptr_t)&spapr_cpu->dtl_size + == ((uintptr_t)&spapr_cpu->dtl_addr + 8)); reg.id = KVM_REG_PPC_VPA_DTL; - reg.addr = (uintptr_t)&env->dtl_addr; + reg.addr = (uintptr_t)&spapr_cpu->dtl_addr; ret = kvm_vcpu_ioctl(cs, KVM_GET_ONE_REG, ®); if (ret < 0) { DPRINTF("Unable to get dispatch trace log state from KVM: %s\n", @@ -868,7 +869,7 @@ static int kvm_get_vpa(CPUState *cs) static int kvm_put_vpa(CPUState *cs) { PowerPCCPU *cpu = POWERPC_CPU(cs); - CPUPPCState *env = &cpu->env; + sPAPRCPUState *spapr_cpu = spapr_cpu_state(cpu); struct kvm_one_reg reg; int ret; @@ -876,11 +877,12 @@ static int kvm_put_vpa(CPUState *cs) * registered. That means when restoring state, if a VPA *is* * registered, we need to set that up first. If not, we need to * deregister the others before deregistering the master VPA */ - assert(env->vpa_addr || !(env->slb_shadow_addr || env->dtl_addr)); + assert(spapr_cpu->vpa_addr + || !(spapr_cpu->slb_shadow_addr || spapr_cpu->dtl_addr)); - if (env->vpa_addr) { + if (spapr_cpu->vpa_addr) { reg.id = KVM_REG_PPC_VPA_ADDR; - reg.addr = (uintptr_t)&env->vpa_addr; + reg.addr = (uintptr_t)&spapr_cpu->vpa_addr; ret = kvm_vcpu_ioctl(cs, KVM_SET_ONE_REG, ®); if (ret < 0) { DPRINTF("Unable to set VPA address to KVM: %s\n", strerror(errno)); @@ -888,19 +890,20 @@ static int kvm_put_vpa(CPUState *cs) } } - assert((uintptr_t)&env->slb_shadow_size - == ((uintptr_t)&env->slb_shadow_addr + 8)); + assert((uintptr_t)&spapr_cpu->slb_shadow_size + == ((uintptr_t)&spapr_cpu->slb_shadow_addr + 8)); reg.id = KVM_REG_PPC_VPA_SLB; - reg.addr = (uintptr_t)&env->slb_shadow_addr; + reg.addr = (uintptr_t)&spapr_cpu->slb_shadow_addr; ret = kvm_vcpu_ioctl(cs, KVM_SET_ONE_REG, ®); if (ret < 0) { DPRINTF("Unable to set SLB shadow state to KVM: %s\n", strerror(errno)); return ret; } - assert((uintptr_t)&env->dtl_size == ((uintptr_t)&env->dtl_addr + 8)); + assert((uintptr_t)&spapr_cpu->dtl_size + == ((uintptr_t)&spapr_cpu->dtl_addr + 8)); reg.id = KVM_REG_PPC_VPA_DTL; - reg.addr = (uintptr_t)&env->dtl_addr; + reg.addr = (uintptr_t)&spapr_cpu->dtl_addr; ret = kvm_vcpu_ioctl(cs, KVM_SET_ONE_REG, ®); if (ret < 0) { DPRINTF("Unable to set dispatch trace log state to KVM: %s\n", @@ -908,9 +911,9 @@ static int kvm_put_vpa(CPUState *cs) return ret; } - if (!env->vpa_addr) { + if (!spapr_cpu->vpa_addr) { reg.id = KVM_REG_PPC_VPA_ADDR; - reg.addr = (uintptr_t)&env->vpa_addr; + reg.addr = (uintptr_t)&spapr_cpu->vpa_addr; ret = kvm_vcpu_ioctl(cs, KVM_SET_ONE_REG, ®); if (ret < 0) { DPRINTF("Unable to set VPA address to KVM: %s\n", strerror(errno)); diff --git a/target/ppc/translate_init.inc.c b/target/ppc/translate_init.inc.c index bb9296f5a3..76d6f3fd5e 100644 --- a/target/ppc/translate_init.inc.c +++ b/target/ppc/translate_init.inc.c @@ -10316,14 +10316,6 @@ static void ppc_cpu_reset(CPUState *s) s->exception_index = POWERPC_EXCP_NONE; env->error_code = 0; -#if defined(TARGET_PPC64) && !defined(CONFIG_USER_ONLY) - env->vpa_addr = 0; - env->slb_shadow_addr = 0; - env->slb_shadow_size = 0; - env->dtl_addr = 0; - env->dtl_size = 0; -#endif /* TARGET_PPC64 */ - for (i = 0; i < ARRAY_SIZE(env->spr_cb); i++) { ppc_spr_t *spr = &env->spr_cb[i]; -- 2.17.1