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// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2023 Ventana Micro Systems Inc.
*/
#include <linux/kvm_host.h>
#include <asm/kvm_vcpu_sbi.h>
#include <asm/sbi.h>
static int kvm_sbi_sta_steal_time_set_shmem(struct kvm_vcpu *vcpu)
{
return SBI_ERR_FAILURE;
}
static int kvm_sbi_ext_sta_handler(struct kvm_vcpu *vcpu, struct kvm_run *run,
struct kvm_vcpu_sbi_return *retdata)
{
struct kvm_cpu_context *cp = &vcpu->arch.guest_context;
unsigned long funcid = cp->a6;
int ret;
switch (funcid) {
case SBI_EXT_STA_STEAL_TIME_SET_SHMEM:
ret = kvm_sbi_sta_steal_time_set_shmem(vcpu);
break;
default:
ret = SBI_ERR_NOT_SUPPORTED;
break;
}
retdata->err_val = ret;
return 0;
}
static unsigned long kvm_sbi_ext_sta_probe(struct kvm_vcpu *vcpu)
{
return 0;
}
const struct kvm_vcpu_sbi_extension vcpu_sbi_ext_sta = {
.extid_start = SBI_EXT_STA,
.extid_end = SBI_EXT_STA,
.handler = kvm_sbi_ext_sta_handler,
.probe = kvm_sbi_ext_sta_probe,
};
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