diff options
| -rw-r--r-- | hw/spapr.c | 10 | ||||
| -rw-r--r-- | target-ppc/cpu.h | 20 | ||||
| -rw-r--r-- | target-ppc/kvm.c | 23 | ||||
| -rw-r--r-- | target-ppc/translate_init.c | 18 |
4 files changed, 49 insertions, 22 deletions
diff --git a/hw/spapr.c b/hw/spapr.c index 08c7399fef..933af322c5 100644 --- a/hw/spapr.c +++ b/hw/spapr.c @@ -188,8 +188,6 @@ static void *spapr_create_fdt_skel(const char *cpu_model, 0xffffffff, 0xffffffff}; uint32_t tbfreq = kvm_enabled() ? kvmppc_get_tbfreq() : TIMEBASE_FREQ; uint32_t cpufreq = kvm_enabled() ? kvmppc_get_clockfreq() : 1000000000; - uint32_t vmx = kvm_enabled() ? kvmppc_get_vmx() : 0; - uint32_t dfp = kvm_enabled() ? kvmppc_get_dfp() : 0; if ((index % smt) != 0) { continue; @@ -241,15 +239,17 @@ static void *spapr_create_fdt_skel(const char *cpu_model, * 0 / no property == no vector extensions * 1 == VMX / Altivec available * 2 == VSX available */ - if (vmx) { + if (env->insns_flags & PPC_ALTIVEC) { + uint32_t vmx = (env->insns_flags2 & PPC2_VSX) ? 2 : 1; + _FDT((fdt_property_cell(fdt, "ibm,vmx", vmx))); } /* Advertise DFP (Decimal Floating Point) if available * 0 / no property == no DFP * 1 == DFP available */ - if (dfp) { - _FDT((fdt_property_cell(fdt, "ibm,dfp", dfp))); + if (env->insns_flags2 & PPC2_DFP) { + _FDT((fdt_property_cell(fdt, "ibm,dfp", 1))); } _FDT((fdt_end_node(fdt))); diff --git a/target-ppc/cpu.h b/target-ppc/cpu.h index f36f375596..3ef4eba836 100644 --- a/target-ppc/cpu.h +++ b/target-ppc/cpu.h @@ -858,6 +858,22 @@ enum { /* The whole PowerPC CPU context */ #define NB_MMU_MODES 3 +struct ppc_def_t { + const char *name; + uint32_t pvr; + uint32_t svr; + uint64_t insns_flags; + uint64_t insns_flags2; + uint64_t msr_mask; + powerpc_mmu_t mmu_model; + powerpc_excp_t excp_model; + powerpc_input_t bus_model; + uint32_t flags; + int bfd_mach; + void (*init_proc)(CPUPPCState *env); + int (*check_pow)(CPUPPCState *env); +}; + struct CPUPPCState { /* First are the most commonly used resources * during translated code execution @@ -1844,6 +1860,10 @@ enum { /* BookE 2.06 PowerPC specification */ PPC2_BOOKE206 = 0x0000000000000001ULL, + /* VSX (extensions to Altivec / VMX) */ + PPC2_VSX = 0x0000000000000002ULL, + /* Decimal Floating Point (DFP) */ + PPC2_DFP = 0x0000000000000004ULL, }; /*****************************************************************************/ diff --git a/target-ppc/kvm.c b/target-ppc/kvm.c index 313c7b2af2..a090d79ad4 100644 --- a/target-ppc/kvm.c +++ b/target-ppc/kvm.c @@ -888,14 +888,35 @@ static inline uint32_t mfpvr(void) return pvr; } +static void alter_insns(uint64_t *word, uint64_t flags, bool on) +{ + if (on) { + *word |= flags; + } else { + *word &= ~flags; + } +} + const ppc_def_t *kvmppc_host_cpu_def(void) { uint32_t host_pvr = mfpvr(); const ppc_def_t *base_spec; + ppc_def_t *spec; + uint32_t vmx = kvmppc_get_vmx(); + uint32_t dfp = kvmppc_get_dfp(); base_spec = ppc_find_by_pvr(host_pvr); - return base_spec; + spec = g_malloc0(sizeof(*spec)); + memcpy(spec, base_spec, sizeof(*spec)); + + /* Now fix up the spec with information we can query from the host */ + + alter_insns(&spec->insns_flags, PPC_ALTIVEC, vmx > 0); + alter_insns(&spec->insns_flags2, PPC2_VSX, vmx > 1); + alter_insns(&spec->insns_flags2, PPC2_DFP, dfp); + + return spec; } bool kvm_arch_stop_on_emulation_error(CPUState *env) diff --git a/target-ppc/translate_init.c b/target-ppc/translate_init.c index f0ae1d1764..4dfd7f3bfb 100644 --- a/target-ppc/translate_init.c +++ b/target-ppc/translate_init.c @@ -34,22 +34,6 @@ #define TODO_USER_ONLY 1 #endif -struct ppc_def_t { - const char *name; - uint32_t pvr; - uint32_t svr; - uint64_t insns_flags; - uint64_t insns_flags2; - uint64_t msr_mask; - powerpc_mmu_t mmu_model; - powerpc_excp_t excp_model; - powerpc_input_t bus_model; - uint32_t flags; - int bfd_mach; - void (*init_proc)(CPUPPCState *env); - int (*check_pow)(CPUPPCState *env); -}; - /* For user-mode emulation, we don't emulate any IRQ controller */ #if defined(CONFIG_USER_ONLY) #define PPC_IRQ_INIT_FN(name) \ @@ -6535,6 +6519,8 @@ static void init_proc_970MP (CPUPPCState *env) PPC_64B | PPC_ALTIVEC | \ PPC_SEGMENT_64B | PPC_SLBI | \ PPC_POPCNTB | PPC_POPCNTWD) +/* FIXME: Should also have PPC2_VSX and PPC2_DFP, but we don't + * implement those in TCG yet */ #define POWERPC_INSNS2_POWER7 (PPC_NONE) #define POWERPC_MSRM_POWER7 (0x800000000204FF36ULL) #define POWERPC_MMU_POWER7 (POWERPC_MMU_2_06) |