mirror of
https://github.com/projectacrn/acrn-hypervisor.git
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c89d6e6526
- rename 3 module interface APIs init_mtrr() -> init_vmtrr() mtrr_rdmsr -> read_vmtrr() mtrr_wrmsr() -> write_vmtrr() - follow naming convention for other modules, rename struct mtrr_state to struct acrn_vmtrr. And add acrn_vcpu to it. - because MTRR is x86 architecture specific, move struct acrn_vmtrr to struct acrn_vcpu_arch. Tracked-on: #1842 Signed-off-by: Zide Chen <zide.chen@intel.com> Acked-by: Eddie Dong <eddie.dong@intel.com>
88 lines
1.7 KiB
C
88 lines
1.7 KiB
C
/*
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* Copyright (C) <2018> Intel Corporation
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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/**
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* @file vmtrr.h
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*
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* @brief MTRR Virtualization
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*/
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#ifndef VMTRR_H
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#define VMTRR_H
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/**
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* @brief MTRR Virtualization
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*
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* @addtogroup acrn_mem ACRN Memory Management
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* @{
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*/
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#define FIXED_RANGE_MTRR_NUM 11U
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#define MTRR_SUB_RANGE_NUM 8U
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union mtrr_cap_reg {
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uint64_t value;
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struct {
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uint32_t vcnt:8;
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uint32_t fix:1;
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uint32_t res0:1;
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uint32_t wc:1;
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uint32_t res1:21;
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uint32_t res2:32;
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} bits;
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};
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union mtrr_def_type_reg {
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uint64_t value;
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struct {
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uint32_t type:8;
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uint32_t res0:2;
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uint32_t fixed_enable:1;
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uint32_t enable:1;
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uint32_t res1:20;
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uint32_t res2:32;
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} bits;
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};
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union mtrr_fixed_range_reg {
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uint64_t value;
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uint8_t type[MTRR_SUB_RANGE_NUM];
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};
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struct acrn_vmtrr {
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struct acrn_vcpu *vcpu;
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union mtrr_cap_reg cap;
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union mtrr_def_type_reg def_type;
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union mtrr_fixed_range_reg fixed_range[FIXED_RANGE_MTRR_NUM];
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};
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/**
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* @brief Virtual MTRR MSR write
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*
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* @param[inout] vcpu The pointer that points VCPU data structure
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* @param[in] msr Virtual MTRR MSR Address
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* @param[in] value The value that will be writen into virtual MTRR MSR
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*
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* @return None
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*/
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void write_vmtrr(struct acrn_vcpu *vcpu, uint32_t msr, uint64_t value);
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/**
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* @brief Virtual MTRR MSR read
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*
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* @param[in] vcpu The pointer that points VCPU data structure
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* @param[in] msr Virtual MTRR MSR Address
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*
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* @return The specified virtual MTRR MSR value
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*/
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uint64_t read_vmtrr(const struct acrn_vcpu *vcpu, uint32_t msr);
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/**
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* @brief Virtual MTRR initialization
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*
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* @param[inout] vcpu The pointer that points VCPU data structure
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*
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* @return None
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*/
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void init_vmtrr(struct acrn_vcpu *vcpu);
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/**
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* @}
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*/
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#endif /* VMTRR_H */
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