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https://github.com/projectacrn/acrn-hypervisor.git
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442fc30117
- The current code to virtualize CR0/CR4 is not well designed, and hard to read. This patch reshuffle the logic to make it clear and classify those bits into PASSTHRU, TRAP_AND_PASSTHRU, TRAP_AND_EMULATE & reserved bits. Tracked-On: #5586 Signed-off-by: Eddie Dong <eddie.dong@intel.com> Signed-off-by: Yonghua Huang <yonghua.huang@intel.com>
96 lines
1.8 KiB
C
96 lines
1.8 KiB
C
/*
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* Copyright (C) 2018 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 VCR_H
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#define VCR_H
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/**
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* @file virtual_cr.h
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*
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* @brief public APIs for vCR operations
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*/
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uint64_t get_cr4_reserved_bits(void);
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void init_cr0_cr4_host_guest_mask(void);
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/**
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* @brief vCR from vcpu
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*
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* @defgroup vCR ACRN
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* @{
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*/
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/**
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* @brief get vcpu CR0 value
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*
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* Get & cache target vCPU's CR0 in run_context.
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*
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* @param[in] vcpu pointer to vcpu data structure
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*
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* @return the value of CR0.
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*/
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uint64_t vcpu_get_cr0(struct acrn_vcpu *vcpu);
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/**
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* @brief set vcpu CR0 value
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*
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* Update target vCPU's CR0 in run_context.
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*
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* @param[inout] vcpu pointer to vcpu data structure
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* @param[in] val the value set CR0
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*/
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void vcpu_set_cr0(struct acrn_vcpu *vcpu, uint64_t val);
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/**
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* @brief get vcpu CR2 value
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*
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* Get & cache target vCPU's CR2 in run_context.
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*
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* @param[in] vcpu pointer to vcpu data structure
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*
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* @return the value of CR2.
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*/
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uint64_t vcpu_get_cr2(const struct acrn_vcpu *vcpu);
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/**
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* @brief set vcpu CR2 value
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*
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* Update target vCPU's CR2 in run_context.
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*
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* @param[inout] vcpu pointer to vcpu data structure
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* @param[in] val the value set CR2
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*/
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void vcpu_set_cr2(struct acrn_vcpu *vcpu, uint64_t val);
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/**
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* @brief get vcpu CR4 value
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*
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* Get & cache target vCPU's CR4 in run_context.
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*
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* @param[in] vcpu pointer to vcpu data structure
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*
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* @return the value of CR4.
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*/
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uint64_t vcpu_get_cr4(struct acrn_vcpu *vcpu);
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/**
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* @brief set vcpu CR4 value
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*
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* Update target vCPU's CR4 in run_context.
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*
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* @param[inout] vcpu pointer to vcpu data structure
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* @param[in] val the value set CR4
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*/
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void vcpu_set_cr4(struct acrn_vcpu *vcpu, uint64_t val);
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/**
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* @}
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*/
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/* End of vCR */
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int32_t cr_access_vmexit_handler(struct acrn_vcpu *vcpu);
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#endif /* VCR_H */
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