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Diffstat (limited to 'arch/x86/include/asm/hypervisor.h')
-rw-r--r--arch/x86/include/asm/hypervisor.h22
1 files changed, 18 insertions, 4 deletions
diff --git a/arch/x86/include/asm/hypervisor.h b/arch/x86/include/asm/hypervisor.h
index ff2546ce717..e42f758a0fb 100644
--- a/arch/x86/include/asm/hypervisor.h
+++ b/arch/x86/include/asm/hypervisor.h
@@ -20,8 +20,10 @@
#ifndef _ASM_X86_HYPERVISOR_H
#define _ASM_X86_HYPERVISOR_H
-extern void init_hypervisor(struct cpuinfo_x86 *c);
-extern void init_hypervisor_platform(void);
+#ifdef CONFIG_HYPERVISOR_GUEST
+
+#include <asm/kvm_para.h>
+#include <asm/xen/hypervisor.h>
/*
* x86 hypervisor information
@@ -31,13 +33,16 @@ struct hypervisor_x86 {
const char *name;
/* Detection routine */
- bool (*detect)(void);
+ uint32_t (*detect)(void);
/* Adjust CPU feature bits (run once per CPU) */
void (*set_cpu_features)(struct cpuinfo_x86 *);
/* Platform setup (run once per boot) */
void (*init_platform)(void);
+
+ /* X2APIC detection (run once per boot) */
+ bool (*x2apic_available)(void);
};
extern const struct hypervisor_x86 *x86_hyper;
@@ -46,5 +51,14 @@ extern const struct hypervisor_x86 *x86_hyper;
extern const struct hypervisor_x86 x86_hyper_vmware;
extern const struct hypervisor_x86 x86_hyper_ms_hyperv;
extern const struct hypervisor_x86 x86_hyper_xen_hvm;
+extern const struct hypervisor_x86 x86_hyper_kvm;
-#endif
+extern void init_hypervisor(struct cpuinfo_x86 *c);
+extern void init_hypervisor_platform(void);
+extern bool hypervisor_x2apic_available(void);
+#else
+static inline void init_hypervisor(struct cpuinfo_x86 *c) { }
+static inline void init_hypervisor_platform(void) { }
+static inline bool hypervisor_x2apic_available(void) { return false; }
+#endif /* CONFIG_HYPERVISOR_GUEST */
+#endif /* _ASM_X86_HYPERVISOR_H */