arm_psci.h File Reference

#include <linux/kvm_host.h>
#include <uapi/linux/psci.h>

Include dependency graph for arm_psci.h:

Go to the source code of this file.

Macros
#define	KVM_ARM_PSCI_0_1   PSCI_VERSION(0, 1)
#define	KVM_ARM_PSCI_0_2   PSCI_VERSION(0, 2)
#define	KVM_ARM_PSCI_1_0   PSCI_VERSION(1, 0)
#define	KVM_ARM_PSCI_1_1   PSCI_VERSION(1, 1)
#define	KVM_ARM_PSCI_LATEST   KVM_ARM_PSCI_1_1

Functions
static int	kvm_psci_version (struct kvm_vcpu *vcpu)
int	kvm_psci_call (struct kvm_vcpu *vcpu)

Macro Definition Documentation

KVM_ARM_PSCI_0_1

#define KVM_ARM_PSCI_0_1   PSCI_VERSION(0, 1)

Definition at line 13 of file arm_psci.h.

KVM_ARM_PSCI_0_2

#define KVM_ARM_PSCI_0_2   PSCI_VERSION(0, 2)

Definition at line 14 of file arm_psci.h.

KVM_ARM_PSCI_1_0

#define KVM_ARM_PSCI_1_0   PSCI_VERSION(1, 0)

Definition at line 15 of file arm_psci.h.

KVM_ARM_PSCI_1_1

#define KVM_ARM_PSCI_1_1   PSCI_VERSION(1, 1)

Definition at line 16 of file arm_psci.h.

KVM_ARM_PSCI_LATEST

#define KVM_ARM_PSCI_LATEST   KVM_ARM_PSCI_1_1

Definition at line 18 of file arm_psci.h.

Function Documentation

kvm_psci_call()

int kvm_psci_call

(

struct kvm_vcpu *

vcpu

)

kvm_psci_version()

static int kvm_psci_version ( struct kvm_vcpu *  vcpu )

inlinestatic

Definition at line 20 of file arm_psci.h.

{
    /*
     * Our PSCI implementation stays the same across versions from
     * v0.2 onward, only adding the few mandatory functions (such
     * as FEATURES with 1.0) that are required by newer
     * revisions. It is thus safe to return the latest, unless
     * userspace has instructed us otherwise.
     */
    if (vcpu_has_feature(vcpu, KVM_ARM_VCPU_PSCI_0_2)) {
        if (vcpu->kvm->arch.psci_version)
            return vcpu->kvm->arch.psci_version;
 
        return KVM_ARM_PSCI_LATEST;
    }
 
    return KVM_ARM_PSCI_0_1;
}