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https://github.com/projectacrn/acrn-hypervisor.git
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048155d3d6
This patch implements the minimum set of TLFS functionality. It includes 6 vCPUID leaves and 3 vMSRs. - 0x40000001 Hypervisor Vendor-Neutral Interface Identification - 0x40000002 Hypervisor System Identity - 0x40000003 Hypervisor Feature Identification - 0x40000004 Implementation Recommendations - 0x40000005 Hypervisor Implementation Limits - 0x40000006 Implementation Hardware Features - HV_X64_MSR_GUEST_OS_ID Reporting the guest OS identity - HV_X64_MSR_HYPERCALL Establishing the hypercall interface - HV_X64_MSR_VP_INDEX Retrieve the vCPU ID from hypervisor Tracked-On: #3832 Signed-off-by: wenwumax <wenwux.ma@intel.com> Signed-off-by: Jian Jun Chen <jian.jun.chen@intel.com> Acked-by: Anthony Xu <anthony.xu@intel.com>
51 lines
1.1 KiB
C
51 lines
1.1 KiB
C
/*
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* Copyright (C) 2019 Intel Corporation. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#ifndef HYPERV_H
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#define HYPERV_H
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#include <vcpuid.h>
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/* Hyper-V MSR numbers */
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#define HV_X64_MSR_GUEST_OS_ID 0x40000000U
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#define HV_X64_MSR_HYPERCALL 0x40000001U
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#define HV_X64_MSR_VP_INDEX 0x40000002U
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union hyperv_hypercall_msr {
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uint64_t val64;
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struct {
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uint64_t enabled:1;
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uint64_t locked:1;
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uint64_t rsvdp:10;
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uint64_t gpfn:52;
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};
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};
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union hyperv_guest_os_id_msr {
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uint64_t val64;
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struct {
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uint64_t build_number:16;
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uint64_t service_version:8;
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uint64_t minor_version:8;
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uint64_t major_version:8;
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uint64_t os_id:8;
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uint64_t vendor_id:15;
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uint64_t os_type:1;
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};
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};
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struct acrn_hyperv {
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union hyperv_hypercall_msr hypercall_page;
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union hyperv_guest_os_id_msr guest_os_id;
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};
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int32_t hyperv_wrmsr(struct acrn_vcpu *vcpu, uint32_t msr, uint64_t wval);
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int32_t hyperv_rdmsr(struct acrn_vcpu *vcpu, uint32_t msr, uint64_t *rval);
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void hyperv_init_vcpuid_entry(uint32_t leaf, uint32_t subleaf, uint32_t flags,
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struct vcpuid_entry *entry);
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#endif
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