40 lines
676 B
C
40 lines
676 B
C
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/*
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* Copyright (c) 2021 EPAM Systems
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <arch/arm64/hypercall.h>
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#include <xen/hvm.h>
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#include <xen/public/hvm/hvm_op.h>
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#include <xen/public/hvm/params.h>
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#include <kernel.h>
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int hvm_set_parameter(int idx, uint64_t value)
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{
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struct xen_hvm_param xhv;
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xhv.domid = DOMID_SELF;
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xhv.index = idx;
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xhv.value = value;
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return HYPERVISOR_hvm_op(HVMOP_set_param, &xhv);
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}
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int hvm_get_parameter(int idx, uint64_t *value)
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{
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int ret = 0;
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struct xen_hvm_param xhv;
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xhv.domid = DOMID_SELF;
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xhv.index = idx;
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ret = HYPERVISOR_hvm_op(HVMOP_get_param, &xhv);
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if (ret < 0)
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return ret;
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*value = xhv.value;
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return ret;
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}
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