arch/powerpc/include/asm/kvm_para.h

Source file repositories/reference/linux-study-clean/arch/powerpc/include/asm/kvm_para.h

File Facts

System
Linux kernel
Corpus path
arch/powerpc/include/asm/kvm_para.h
Extension
.h
Size
752 bytes
Lines
44
Domain
Architecture Layer
Bucket
arch/powerpc
Inferred role
Architecture Layer: implementation source
Status
source implementation candidate

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

Detected Declarations

Annotated Snippet

#ifndef __POWERPC_KVM_PARA_H__
#define __POWERPC_KVM_PARA_H__

#include <asm/kvm_guest.h>

#include <uapi/asm/kvm_para.h>

static inline int kvm_para_available(void)
{
	return IS_ENABLED(CONFIG_KVM_GUEST) && is_kvm_guest();
}

static inline unsigned int kvm_arch_para_features(void)
{
	unsigned long r;

	if (!kvm_para_available())
		return 0;

	if(epapr_hypercall0_1(KVM_HCALL_TOKEN(KVM_HC_FEATURES), &r))
		return 0;

	return r;
}

static inline unsigned int kvm_arch_para_hints(void)
{
	return 0;
}

static inline bool kvm_check_and_clear_guest_paused(void)
{
	return false;
}

#endif /* __POWERPC_KVM_PARA_H__ */

Annotation

Implementation Notes