mirror of https://gitee.com/openkylin/linux.git
70 lines
1.5 KiB
C
70 lines
1.5 KiB
C
/*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License, version 2, as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
*
|
|
* 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 bool kvm_check_and_clear_guest_paused(void)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
#endif /* __POWERPC_KVM_PARA_H__ */
|