diff options
Diffstat (limited to 'arch/powerpc/include/asm/kvm_para.h')
| -rw-r--r-- | arch/powerpc/include/asm/kvm_para.h | 40 |
1 files changed, 36 insertions, 4 deletions
diff --git a/arch/powerpc/include/asm/kvm_para.h b/arch/powerpc/include/asm/kvm_para.h index 2d48f6a63d0..336a91acb8b 100644 --- a/arch/powerpc/include/asm/kvm_para.h +++ b/arch/powerpc/include/asm/kvm_para.h @@ -16,22 +16,54 @@ * * Authors: Hollis Blanchard <hollisb@us.ibm.com> */ - #ifndef __POWERPC_KVM_PARA_H__ #define __POWERPC_KVM_PARA_H__ -#ifdef __KERNEL__ +#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) { - return 0; + unsigned long r; + + if (!kvm_para_available()) + return 0; + + if(epapr_hypercall0_1(KVM_HCALL_TOKEN(KVM_HC_FEATURES), &r)) + return 0; + + return r; } -#endif /* __KERNEL__ */ +static inline bool kvm_check_and_clear_guest_paused(void) +{ + return false; +} #endif /* __POWERPC_KVM_PARA_H__ */ |