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hv: support minimum set of TLFS

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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>
This commit is contained in:
wenwumax
2019-10-15 09:11:21 +08:00
committed by wenlingz
parent 009d835bba
commit 048155d3d6
7 changed files with 261 additions and 0 deletions
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50
hypervisor/include/arch/x86/guest/hyperv.h Normal file
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@@ -0,0 +1,50 @@
/*
* Copyright (C) 2019 Intel Corporation. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#ifndef HYPERV_H
#define HYPERV_H
#include <vcpuid.h>
/* Hyper-V MSR numbers */
#define HV_X64_MSR_GUEST_OS_ID 0x40000000U
#define HV_X64_MSR_HYPERCALL 0x40000001U
#define HV_X64_MSR_VP_INDEX 0x40000002U
union hyperv_hypercall_msr {
uint64_t val64;
struct {
uint64_t enabled:1;
uint64_t locked:1;
uint64_t rsvdp:10;
uint64_t gpfn:52;
};
};
union hyperv_guest_os_id_msr {
uint64_t val64;
struct {
uint64_t build_number:16;
uint64_t service_version:8;
uint64_t minor_version:8;
uint64_t major_version:8;
uint64_t os_id:8;
uint64_t vendor_id:15;
uint64_t os_type:1;
};
};
struct acrn_hyperv {
union hyperv_hypercall_msr hypercall_page;
union hyperv_guest_os_id_msr guest_os_id;
};
int32_t hyperv_wrmsr(struct acrn_vcpu *vcpu, uint32_t msr, uint64_t wval);
int32_t hyperv_rdmsr(struct acrn_vcpu *vcpu, uint32_t msr, uint64_t *rval);
void hyperv_init_vcpuid_entry(uint32_t leaf, uint32_t subleaf, uint32_t flags,
struct vcpuid_entry *entry);
#endif

6
hypervisor/include/arch/x86/guest/vm.h
View File

@@ -26,6 +26,9 @@
#include <cpu_caps.h>
#include <e820.h>
#include <vm_config.h>
#ifdef CONFIG_HYPERV_ENABLED
#include <hyperv.h>
#endif
struct vm_hw_info {
/* vcpu array of this VM */
@@ -100,6 +103,9 @@ struct vm_arch {
void *tmp_pg_array; /* Page array for tmp guest paging struct */
struct acrn_vioapic vioapic; /* Virtual IOAPIC base address */
struct acrn_vpic vpic; /* Virtual PIC */
#ifdef CONFIG_HYPERV_ENABLED
struct acrn_hyperv hyperv;
#endif
enum vm_vlapic_state vlapic_state; /* Represents vLAPIC state across vCPUs*/
/* reference to virtual platform to come here (as needed) */