Viewing file:  kvm_para.h (986 B) -rw-r--r--
Select action/file-type:
 (+) |  (+) |  (+) | Code (+) | Session (+) |  (+) | SDB (+) |  (+) |  (+) |  (+) |  (+) |  (+) |
/* SPDX-License-Identifier: GPL-2.0-only */
/*
*
* Copyright IBM Corp. 2008
*
* Authors: Hollis Blanchard <hollisb@us.ibm.com>
*/
#ifndef __POWERPC_KVM_PARA_H__
#define __POWERPC_KVM_PARA_H__
#include <uapi/asm/kvm_para.h>
#ifdef CONFIG_KVM_GUEST
#include <linux/of.h>
static inline int kvm_para_available(void)
{
struct device_node *hyper_node;
hyper_node = of_find_node_by_path("/hypervisor");
if (!hyper_node)
return 0;
if (!of_device_is_compatible(hyper_node, "linux,kvm"))
return 0;
return 1;
}
#else
static inline int kvm_para_available(void)
{
return 0;
}
#endif
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__ */
|