55 lines
2.0 KiB
C
55 lines
2.0 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 VMEXIT_H_
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#define VMEXIT_H_
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struct vm_exit_dispatch {
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int (*handler)(struct vcpu *);
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uint32_t need_exit_qualification;
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};
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int vmexit_handler(struct vcpu *vcpu);
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int vmcall_vmexit_handler(struct vcpu *vcpu);
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int cpuid_vmexit_handler(struct vcpu *vcpu);
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int cr_access_vmexit_handler(struct vcpu *vcpu);
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#define VM_EXIT_QUALIFICATION_BIT_MASK(exit_qual, MSB, LSB) \
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(exit_qual & (((1UL << (MSB+1U))-1UL) - ((1UL << (LSB))-1UL)))
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/* MACROs to access Control-Register Info using exit qualification field */
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#define VM_EXIT_CR_ACCESS_CR_NUM(exit_qual) \
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(VM_EXIT_QUALIFICATION_BIT_MASK(exit_qual, 3U, 0U) >> 0U)
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#define VM_EXIT_CR_ACCESS_ACCESS_TYPE(exit_qual) \
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(VM_EXIT_QUALIFICATION_BIT_MASK(exit_qual, 5U, 4U) >> 4U)
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#define VM_EXIT_CR_ACCESS_LMSW_OP(exit_qual) \
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(VM_EXIT_QUALIFICATION_BIT_MASK(exit_qual, 6U, 6U) >> 6U)
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#define VM_EXIT_CR_ACCESS_REG_IDX(exit_qual) \
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(VM_EXIT_QUALIFICATION_BIT_MASK(exit_qual, 11U, 8U) >> 8U)
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#define VM_EXIT_CR_ACCESS_LMSW_SRC_DATE(exit_qual) \
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(VM_EXIT_QUALIFICATION_BIT_MASK(exit_qual, 31U, 16U) >> 16U)
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/* MACROs to access IO Access Info using exit qualification field */
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#define VM_EXIT_IO_INSTRUCTION_SIZE(exit_qual) \
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(VM_EXIT_QUALIFICATION_BIT_MASK(exit_qual, 2U, 0U) >> 0U)
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#define VM_EXIT_IO_INSTRUCTION_ACCESS_DIRECTION(exit_qual) \
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(VM_EXIT_QUALIFICATION_BIT_MASK(exit_qual, 3U, 3U) >> 3U)
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#define VM_EXIT_IO_INSTRUCTION_IS_STRING(exit_qual) \
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(VM_EXIT_QUALIFICATION_BIT_MASK(exit_qual, 4U, 4U) >> 4U)
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#define VM_EXIT_IO_INSTRUCTION_IS_REP_PREFIXED(exit_qual) \
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(VM_EXIT_QUALIFICATION_BIT_MASK(exit_qual, 5U, 5U) >> 5U)
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#define VM_EXIT_IO_INSTRUCTION_IS_OPERAND_ENCODING(exit_qual) \
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(VM_EXIT_QUALIFICATION_BIT_MASK(exit_qual, 6U, 6U) >> 6U)
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#define VM_EXIT_IO_INSTRUCTION_PORT_NUMBER(exit_qual) \
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(VM_EXIT_QUALIFICATION_BIT_MASK(exit_qual, 31U, 16U) >> 16U)
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#ifdef HV_DEBUG
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void get_vmexit_profile(char *str_arg, int str_max);
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#endif /* HV_DEBUG */
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#endif /* VMEXIT_H_ */
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