diff options
Diffstat (limited to 'target/i386/tcg/tcg-cpu.c')
| -rw-r--r-- | target/i386/tcg/tcg-cpu.c | 39 |
1 files changed, 25 insertions, 14 deletions
diff --git a/target/i386/tcg/tcg-cpu.c b/target/i386/tcg/tcg-cpu.c index b8aff825ee..621502c984 100644 --- a/target/i386/tcg/tcg-cpu.c +++ b/target/i386/tcg/tcg-cpu.c @@ -23,7 +23,7 @@ #include "qemu/accel.h" #include "accel/accel-cpu-target.h" #include "exec/translation-block.h" - +#include "exec/target_page.h" #include "tcg-cpu.h" /* Frob eflags into and out of the CPU temporary format. */ @@ -94,6 +94,23 @@ 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) { @@ -107,11 +124,17 @@ static bool x86_debug_check_breakpoint(CPUState *cs) #include "accel/tcg/cpu-ops.h" -static const TCGCPUOps x86_tcg_ops = { +const TCGCPUOps x86_tcg_ops = { + .mttcg_supported = 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, .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 @@ -130,17 +153,6 @@ 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) \ @@ -189,7 +201,6 @@ 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 = { |