From c1f412260b4e0f309dba8da99482fb32d6098719 Mon Sep 17 00:00:00 2001 From: Eduardo Habkost Date: Thu, 30 Jan 2014 17:48:53 -0200 Subject: target-i386: Eliminate CONFIG_KVM #ifdefs The compiler is already able to eliminate the kvm_arch_get_supported_cpuid() calls in kvm_cpu_fill_host() and filter_features_for_kvm(), so we can eliminate the CONFIG_KVM #ifdefs there. Also, kvm_cpu_fill_host() and host_cpuid() don't need to check CONFIG_KVM, as they don't have any KVM-specific function calls. Tested to build successfully with CONFIG_KVM disabled, using the following CFLAGS combinations: "-DNDEBUG", "-DNDEBUG -O', "-DNDEBUG -O0", "-DNDEBUG -O1", "-DNDEBUG -O2". Signed-off-by: Eduardo Habkost Signed-off-by: Paolo Bonzini --- target-i386/cpu.c | 15 +++------------ 1 file changed, 3 insertions(+), 12 deletions(-) (limited to 'target-i386') diff --git a/target-i386/cpu.c b/target-i386/cpu.c index 1f30efd..8425212 100644 --- a/target-i386/cpu.c +++ b/target-i386/cpu.c @@ -374,7 +374,6 @@ void disable_kvm_pv_eoi(void) void host_cpuid(uint32_t function, uint32_t count, uint32_t *eax, uint32_t *ebx, uint32_t *ecx, uint32_t *edx) { -#if defined(CONFIG_KVM) uint32_t vec[4]; #ifdef __x86_64__ @@ -382,7 +381,7 @@ void host_cpuid(uint32_t function, uint32_t count, : "=a"(vec[0]), "=b"(vec[1]), "=c"(vec[2]), "=d"(vec[3]) : "0"(function), "c"(count) : "cc"); -#else +#elif defined(__i386__) asm volatile("pusha \n\t" "cpuid \n\t" "mov %%eax, 0(%2) \n\t" @@ -392,6 +391,8 @@ void host_cpuid(uint32_t function, uint32_t count, "popa" : : "a"(function), "c"(count), "S"(vec) : "memory", "cc"); +#else + abort(); #endif if (eax) @@ -402,7 +403,6 @@ void host_cpuid(uint32_t function, uint32_t count, *ecx = vec[2]; if (edx) *edx = vec[3]; -#endif } #define iswhite(c) ((c) && ((c) <= ' ' || '~' < (c))) @@ -1119,7 +1119,6 @@ void x86_cpu_compat_set_features(const char *cpu_model, FeatureWord w, } } -#ifdef CONFIG_KVM static int cpu_x86_fill_model_id(char *str) { uint32_t eax = 0, ebx = 0, ecx = 0, edx = 0; @@ -1134,7 +1133,6 @@ static int cpu_x86_fill_model_id(char *str) } return 0; } -#endif /* Fill a x86_def_t struct with information about the host CPU, and * the CPU features supported by the host hardware + host kernel @@ -1143,7 +1141,6 @@ static int cpu_x86_fill_model_id(char *str) */ static void kvm_cpu_fill_host(x86_def_t *x86_cpu_def) { -#ifdef CONFIG_KVM KVMState *s = kvm_state; uint32_t eax = 0, ebx = 0, ecx = 0, edx = 0; @@ -1173,8 +1170,6 @@ static void kvm_cpu_fill_host(x86_def_t *x86_cpu_def) kvm_arch_get_supported_cpuid(s, wi->cpuid_eax, wi->cpuid_ecx, wi->cpuid_reg); } - -#endif /* CONFIG_KVM */ } static int unavailable_host_feature(FeatureWordInfo *f, uint32_t mask) @@ -1817,7 +1812,6 @@ CpuDefinitionInfoList *arch_query_cpu_definitions(Error **errp) return cpu_list; } -#ifdef CONFIG_KVM static void filter_features_for_kvm(X86CPU *cpu) { CPUX86State *env = &cpu->env; @@ -1834,7 +1828,6 @@ static void filter_features_for_kvm(X86CPU *cpu) cpu->filtered_features[w] = requested_features & ~env->features[w]; } } -#endif static void cpu_x86_register(X86CPU *cpu, const char *name, Error **errp) { @@ -2545,9 +2538,7 @@ static void x86_cpu_realizefn(DeviceState *dev, Error **errp) "Host's CPU doesn't support requested features"); goto out; } -#ifdef CONFIG_KVM filter_features_for_kvm(cpu); -#endif } #ifndef CONFIG_USER_ONLY -- cgit v1.1