76 lines
3.4 KiB
C
76 lines
3.4 KiB
C
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/*
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* Copyright (C) 2018 Intel Corporation. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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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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struct vm_exit_dispatch *vmexit_handler(struct vcpu *vcpu);
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int vmcall_handler(struct vcpu *vcpu);
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int cpuid_handler(struct vcpu *vcpu);
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int cr_access_handler(struct vcpu *vcpu);
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int get_vmexit_profile(char *str, int str_max);
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#define VM_EXIT_QUALIFICATION_BIT_MASK(exit_qual, MSB, LSB) \
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(exit_qual & (((1UL << (MSB+1))-1) - ((1UL << (LSB))-1)))
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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, 3, 0) >> 0)
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#define VM_EXIT_CR_ACCESS_ACCESS_TYPE(exit_qual) \
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(VM_EXIT_QUALIFICATION_BIT_MASK(exit_qual, 5, 4) >> 4)
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#define VM_EXIT_CR_ACCESS_LMSW_OP(exit_qual) \
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(VM_EXIT_QUALIFICATION_BIT_MASK(exit_qual, 6, 6) >> 6)
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#define VM_EXIT_CR_ACCESS_REG_IDX(exit_qual) \
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(VM_EXIT_QUALIFICATION_BIT_MASK(exit_qual, 11, 8) >> 8)
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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, 31, 16) >> 16)
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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, 2, 0) >> 0)
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#define VM_EXIT_IO_INSTRUCTION_ACCESS_DIRECTION(exit_qual) \
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(VM_EXIT_QUALIFICATION_BIT_MASK(exit_qual, 3, 3) >> 3)
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#define VM_EXIT_IO_INSTRUCTION_IS_STRING(exit_qual) \
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(VM_EXIT_QUALIFICATION_BIT_MASK(exit_qual, 4, 4) >> 4)
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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, 5, 5) >> 5)
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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, 6, 6) >> 6)
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#define VM_EXIT_IO_INSTRUCTION_PORT_NUMBER(exit_qual) \
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(VM_EXIT_QUALIFICATION_BIT_MASK(exit_qual, 31, 16) >> 16)
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#endif /* VMEXIT_H_ */
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