diff options
Diffstat (limited to 'target/i386/tcg/tcg-cpu.c')
| -rw-r--r-- | target/i386/tcg/tcg-cpu.c | 86 |
1 files changed, 68 insertions, 18 deletions
diff --git a/target/i386/tcg/tcg-cpu.c b/target/i386/tcg/tcg-cpu.c index cca19cd..6f5dc06 100644 --- a/target/i386/tcg/tcg-cpu.c +++ b/target/i386/tcg/tcg-cpu.c @@ -21,8 +21,10 @@ #include "cpu.h" #include "helper-tcg.h" #include "qemu/accel.h" -#include "hw/core/accel-cpu.h" - +#include "accel/accel-cpu-target.h" +#include "exec/translation-block.h" +#include "exec/target_page.h" +#include "accel/tcg/cpu-ops.h" #include "tcg-cpu.h" /* Frob eflags into and out of the CPU temporary format. */ @@ -46,6 +48,25 @@ static void x86_cpu_exec_exit(CPUState *cs) env->eflags = cpu_compute_eflags(env); } +static TCGTBCPUState x86_get_tb_cpu_state(CPUState *cs) +{ + CPUX86State *env = cpu_env(cs); + uint32_t flags, cs_base; + vaddr pc; + + flags = env->hflags | + (env->eflags & (IOPL_MASK | TF_MASK | RF_MASK | VM_MASK | AC_MASK)); + if (env->hflags & HF_CS64_MASK) { + cs_base = 0; + pc = env->eip; + } else { + cs_base = env->segs[R_CS].base; + pc = (uint32_t)(cs_base + env->eip); + } + + return (TCGTBCPUState){ .pc = pc, .flags = flags, .cs_base = cs_base }; +} + static void x86_cpu_synchronize_from_tb(CPUState *cs, const TranslationBlock *tb) { @@ -93,6 +114,23 @@ static void x86_restore_state_to_opc(CPUState *cs, } } +int x86_mmu_index_pl(CPUX86State *env, unsigned pl) +{ + int mmu_index_32 = (env->hflags & HF_CS64_MASK) ? 0 : 1; + int mmu_index_base = + pl == 3 ? MMU_USER64_IDX : + !(env->hflags & HF_SMAP_MASK) ? MMU_KNOSMAP64_IDX : + (env->eflags & AC_MASK) ? MMU_KNOSMAP64_IDX : MMU_KSMAP64_IDX; + + return mmu_index_base + mmu_index_32; +} + +static int x86_cpu_mmu_index(CPUState *cs, bool ifetch) +{ + CPUX86State *env = cpu_env(cs); + return x86_mmu_index_pl(env, env->hflags & HF_CPL_MASK); +} + #ifndef CONFIG_USER_ONLY static bool x86_debug_check_breakpoint(CPUState *cs) { @@ -102,14 +140,36 @@ static bool x86_debug_check_breakpoint(CPUState *cs) /* RF disables all architectural breakpoints. */ return !(env->eflags & RF_MASK); } -#endif -#include "hw/core/tcg-cpu-ops.h" +static void x86_cpu_exec_reset(CPUState *cs) +{ + CPUArchState *env = cpu_env(cs); + + cpu_svm_check_intercept_param(env, SVM_EXIT_INIT, 0, 0); + do_cpu_init(env_archcpu(env)); + cs->exception_index = EXCP_HALTED; +} + +static vaddr x86_pointer_wrap(CPUState *cs, int mmu_idx, + vaddr result, vaddr base) +{ + return cpu_env(cs)->hflags & HF_CS64_MASK ? result : (uint32_t)result; +} +#endif -static const TCGCPUOps x86_tcg_ops = { +const TCGCPUOps x86_tcg_ops = { + .mttcg_supported = true, + .precise_smc = true, + /* + * The x86 has a strong memory model with some store-after-load re-ordering + */ + .guest_default_memory_order = TCG_MO_ALL & ~TCG_MO_ST_LD, .initialize = tcg_x86_init, + .translate_code = x86_translate_code, + .get_tb_cpu_state = x86_get_tb_cpu_state, .synchronize_from_tb = x86_cpu_synchronize_from_tb, .restore_state_to_opc = x86_restore_state_to_opc, + .mmu_index = x86_cpu_mmu_index, .cpu_exec_enter = x86_cpu_exec_enter, .cpu_exec_exit = x86_cpu_exec_exit, #ifdef CONFIG_USER_ONLY @@ -118,9 +178,11 @@ static const TCGCPUOps x86_tcg_ops = { .record_sigbus = x86_cpu_record_sigbus, #else .tlb_fill = x86_cpu_tlb_fill, + .pointer_wrap = x86_pointer_wrap, .do_interrupt = x86_cpu_do_interrupt, .cpu_exec_halt = x86_cpu_exec_halt, .cpu_exec_interrupt = x86_cpu_exec_interrupt, + .cpu_exec_reset = x86_cpu_exec_reset, .do_unaligned_access = x86_cpu_do_unaligned_access, .debug_excp_handler = breakpoint_handler, .debug_check_breakpoint = x86_debug_check_breakpoint, @@ -128,17 +190,6 @@ static const TCGCPUOps x86_tcg_ops = { #endif /* !CONFIG_USER_ONLY */ }; -static void x86_tcg_cpu_init_ops(AccelCPUClass *accel_cpu, CPUClass *cc) -{ - /* for x86, all cpus use the same set of operations */ - cc->tcg_ops = &x86_tcg_ops; -} - -static void x86_tcg_cpu_class_init(CPUClass *cc) -{ - cc->init_accel_cpu = x86_tcg_cpu_init_ops; -} - static void x86_tcg_cpu_xsave_init(void) { #define XO(bit, field) \ @@ -179,7 +230,7 @@ static void x86_tcg_cpu_instance_init(CPUState *cs) x86_tcg_cpu_xsave_init(); } -static void x86_tcg_cpu_accel_class_init(ObjectClass *oc, void *data) +static void x86_tcg_cpu_accel_class_init(ObjectClass *oc, const void *data) { AccelCPUClass *acc = ACCEL_CPU_CLASS(oc); @@ -187,7 +238,6 @@ static void x86_tcg_cpu_accel_class_init(ObjectClass *oc, void *data) acc->cpu_target_realize = tcg_cpu_realizefn; #endif /* CONFIG_USER_ONLY */ - acc->cpu_class_init = x86_tcg_cpu_class_init; acc->cpu_instance_init = x86_tcg_cpu_instance_init; } static const TypeInfo x86_tcg_cpu_accel_type_info = { |