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https://github.com/projectacrn/acrn-hypervisor.git
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fa26a16645
For data structure types "struct vcpu", its name is identical with variable name in the same scope. This is a MISRA C violation. Naming convention rule:If the data structure type is used by multi modules, its corresponding logic resource is exposed to external components (such as SOS, UOS), and its name meaning is simplistic (such as vcpu, vm), its name needs prefix "acrn_". The following udpates are made: struct vcpu *vcpu-->struct acrn_vcpu *vcpu Tracked-On: #861 Signed-off-by: Xiangyang Wu <xiangyang.wu@linux.intel.com>
87 lines
1.7 KiB
C
87 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 mtrr.h
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*
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* @brief MTRR Virtualization
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*/
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#ifndef MTRR_H
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#define MTRR_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 mtrr_state {
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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 mtrr_wrmsr(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 unsigned long integer - The specified virtual MTRR MSR value
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*/
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uint64_t mtrr_rdmsr(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_mtrr(struct acrn_vcpu *vcpu);
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/**
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* @}
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*/
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#endif /* MTRR_H */
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