diff --git a/target/i386/cpu.h b/target/i386/cpu.h index ac3abea97c16..64b4e4673189 100644 --- a/target/i386/cpu.h +++ b/target/i386/cpu.h @@ -2149,9 +2149,13 @@ static inline void cpu_svm_check_intercept_param(CPUX86State *env1, uint32_t type, uint64_t param, uintptr_t retaddr) { /* no-op */ } +static inline bool +cpu_svm_has_intercept(CPUX86State *env, uint32_t type) +{ return false; } #else void cpu_svm_check_intercept_param(CPUX86State *env1, uint32_t type, uint64_t param, uintptr_t retaddr); +bool cpu_svm_has_intercept(CPUX86State *env, uint32_t type); #endif /* apic.c */ diff --git a/target/i386/tcg/sysemu/svm_helper.c b/target/i386/tcg/sysemu/svm_helper.c index 9d671297cf46..2f7606bebf4a 100644 --- a/target/i386/tcg/sysemu/svm_helper.c +++ b/target/i386/tcg/sysemu/svm_helper.c @@ -412,80 +412,91 @@ void helper_clgi(CPUX86State *env) env->hflags2 &= ~HF2_GIF_MASK; } -void cpu_svm_check_intercept_param(CPUX86State *env, uint32_t type, - uint64_t param, uintptr_t retaddr) +bool cpu_svm_has_intercept(CPUX86State *env, uint32_t type) { - CPUState *cs = env_cpu(env); - - if (likely(!(env->hflags & HF_GUEST_MASK))) { - return; - } switch (type) { case SVM_EXIT_READ_CR0 ... SVM_EXIT_READ_CR0 + 8: if (env->intercept_cr_read & (1 << (type - SVM_EXIT_READ_CR0))) { - cpu_vmexit(env, type, param, retaddr); + return true; } break; case SVM_EXIT_WRITE_CR0 ... SVM_EXIT_WRITE_CR0 + 8: if (env->intercept_cr_write & (1 << (type - SVM_EXIT_WRITE_CR0))) { - cpu_vmexit(env, type, param, retaddr); + return true; } break; case SVM_EXIT_READ_DR0 ... SVM_EXIT_READ_DR0 + 7: if (env->intercept_dr_read & (1 << (type - SVM_EXIT_READ_DR0))) { - cpu_vmexit(env, type, param, retaddr); + return true; } break; case SVM_EXIT_WRITE_DR0 ... SVM_EXIT_WRITE_DR0 + 7: if (env->intercept_dr_write & (1 << (type - SVM_EXIT_WRITE_DR0))) { - cpu_vmexit(env, type, param, retaddr); + return true; } break; case SVM_EXIT_EXCP_BASE ... SVM_EXIT_EXCP_BASE + 31: if (env->intercept_exceptions & (1 << (type - SVM_EXIT_EXCP_BASE))) { - cpu_vmexit(env, type, param, retaddr); - } - break; - case SVM_EXIT_MSR: - if (env->intercept & (1ULL << (SVM_EXIT_MSR - SVM_EXIT_INTR))) { - /* FIXME: this should be read in at vmrun (faster this way?) */ - uint64_t addr = x86_ldq_phys(cs, env->vm_vmcb + - offsetof(struct vmcb, - control.msrpm_base_pa)); - uint32_t t0, t1; - - switch ((uint32_t)env->regs[R_ECX]) { - case 0 ... 0x1fff: - t0 = (env->regs[R_ECX] * 2) % 8; - t1 = (env->regs[R_ECX] * 2) / 8; - break; - case 0xc0000000 ... 0xc0001fff: - t0 = (8192 + env->regs[R_ECX] - 0xc0000000) * 2; - t1 = (t0 / 8); - t0 %= 8; - break; - case 0xc0010000 ... 0xc0011fff: - t0 = (16384 + env->regs[R_ECX] - 0xc0010000) * 2; - t1 = (t0 / 8); - t0 %= 8; - break; - default: - cpu_vmexit(env, type, param, retaddr); - t0 = 0; - t1 = 0; - break; - } - if (x86_ldub_phys(cs, addr + t1) & ((1 << param) << t0)) { - cpu_vmexit(env, type, param, retaddr); - } + return true; } break; default: if (env->intercept & (1ULL << (type - SVM_EXIT_INTR))) { - cpu_vmexit(env, type, param, retaddr); + return true; } break; } + return false; +} + +void cpu_svm_check_intercept_param(CPUX86State *env, uint32_t type, + uint64_t param, uintptr_t retaddr) +{ + CPUState *cs = env_cpu(env); + + if (likely(!(env->hflags & HF_GUEST_MASK))) { + return; + } + + if (!cpu_svm_has_intercept(env, type)) { + return; + } + + if (type == SVM_EXIT_MSR) { + /* FIXME: this should be read in at vmrun (faster this way?) */ + uint64_t addr = x86_ldq_phys(cs, env->vm_vmcb + + offsetof(struct vmcb, + control.msrpm_base_pa)); + uint32_t t0, t1; + + switch ((uint32_t)env->regs[R_ECX]) { + case 0 ... 0x1fff: + t0 = (env->regs[R_ECX] * 2) % 8; + t1 = (env->regs[R_ECX] * 2) / 8; + break; + case 0xc0000000 ... 0xc0001fff: + t0 = (8192 + env->regs[R_ECX] - 0xc0000000) * 2; + t1 = (t0 / 8); + t0 %= 8; + break; + case 0xc0010000 ... 0xc0011fff: + t0 = (16384 + env->regs[R_ECX] - 0xc0010000) * 2; + t1 = (t0 / 8); + t0 %= 8; + break; + default: + cpu_vmexit(env, type, param, retaddr); + t0 = 0; + t1 = 0; + break; + } + if (x86_ldub_phys(cs, addr + t1) & ((1 << param) << t0)) { + cpu_vmexit(env, type, param, retaddr); + } + return; + } + + cpu_vmexit(env, type, param, retaddr); } void helper_svm_check_intercept(CPUX86State *env, uint32_t type)