64 lines
986 B
C
64 lines
986 B
C
|
/* 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__ */
|