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target-i386: Introduce x86_cpu_compat_disable_kvm_features()

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Instead of the feature-specific disable_kvm_pv_eoi() function, create a
more general function that can be used to disable other feature bits in
machine-type compat code.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
This commit is contained in:
Eduardo Habkost 2014-02-19 11:58:11 -03:00 committed by Andreas Färber
parent 5fcca9ff3b
commit 8fb4f821e9
3 changed files with 7 additions and 7 deletions
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6
hw/i386/pc_piix.c
View File

@ -299,7 +299,7 @@ static void pc_compat_1_3(QEMUMachineInitArgs *args)
static void pc_compat_1_2(QEMUMachineInitArgs *args)
{
pc_compat_1_3(args);
disable_kvm_pv_eoi();
x86_cpu_compat_disable_kvm_features(FEAT_KVM, KVM_FEATURE_PV_EOI);
}
static void pc_init_pci_1_7(QEMUMachineInitArgs *args)
@ -345,7 +345,7 @@ static void pc_init_pci_no_kvmclock(QEMUMachineInitArgs *args)
has_pci_info = false;
has_acpi_build = false;
smbios_type1_defaults = false;
disable_kvm_pv_eoi();
x86_cpu_compat_disable_kvm_features(FEAT_KVM, KVM_FEATURE_PV_EOI);
enable_compat_apic_id_mode();
pc_init1(args, 1, 0);
}
@ -358,7 +358,7 @@ static void pc_init_isa(QEMUMachineInitArgs *args)
if (!args->cpu_model) {
args->cpu_model = "486";
}
disable_kvm_pv_eoi();
x86_cpu_compat_disable_kvm_features(FEAT_KVM, KVM_FEATURE_PV_EOI);
enable_compat_apic_id_mode();
pc_init1(args, 0, 1);
}

4
target-i386/cpu.c
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@ -371,9 +371,9 @@ static uint32_t kvm_default_features[FEATURE_WORDS] = {
(1 << KVM_FEATURE_CLOCKSOURCE_STABLE_BIT),
};
void disable_kvm_pv_eoi(void)
void x86_cpu_compat_disable_kvm_features(FeatureWord w, uint32_t features)
{
kvm_default_features[FEAT_KVM] &= ~(1UL << KVM_FEATURE_PV_EOI);
kvm_default_features[w] &= ~features;
}
void host_cpuid(uint32_t function, uint32_t count,

4
target-i386/cpu.h
View File

@ -1262,11 +1262,11 @@ void do_smm_enter(X86CPU *cpu);
void cpu_report_tpr_access(CPUX86State *env, TPRAccess access);
void disable_kvm_pv_eoi(void);
void x86_cpu_compat_set_features(const char *cpu_model, FeatureWord w,
uint32_t feat_add, uint32_t feat_remove);
void x86_cpu_compat_disable_kvm_features(FeatureWord w, uint32_t features);
/* Return name of 32-bit register, from a R_* constant */
const char *get_register_name_32(unsigned int reg);