mirror of
https://github.com/projectacrn/acrn-hypervisor.git
synced 2025-05-11 01:44:55 +00:00
eb8bcb06b3
Modified the copyright year range in code, and corrected "int32_tel" into "Intel" in two "hypervisor/include/debug/profiling.h" and "hypervisor/include/debug/profiling_internal.h". Tracked-On: #7559 Signed-off-by: Ziheng Li <ziheng.li@intel.com>
80 lines
1.7 KiB
C
80 lines
1.7 KiB
C
/*
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* Copyright (C) 2018-2022 Intel Corporation.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#ifndef IDT_H
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#define IDT_H
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/*
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* IDT is defined in assembly so we handle exceptions as early as possible.
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*/
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#ifndef ASSEMBLER
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/* Number of the HOST IDT entries */
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#define HOST_IDT_ENTRIES (0x100U)
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/*
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* Definition of an 16 byte IDT selector.
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*/
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struct idt_64_descriptor {
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union {
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uint32_t value;
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struct {
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uint32_t offset_15_0:16;
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uint32_t seg_sel:16;
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} bits;
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} low32;
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union {
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uint32_t value;
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struct {
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uint32_t ist:3;
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uint32_t bit_3_clr:1;
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uint32_t bit_4_clr:1;
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uint32_t bits_5_7_clr:3;
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uint32_t type:4;
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uint32_t bit_12_clr:1;
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uint32_t dpl:2;
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uint32_t present:1;
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uint32_t offset_31_16:16;
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} bits;
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} high32;
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uint32_t offset_63_32;
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uint32_t rsvd;
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} __aligned(8);
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/*****************************************************************************
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*
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* Definition of the IDT.
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*
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*****************************************************************************/
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struct host_idt {
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struct idt_64_descriptor host_idt_descriptors[HOST_IDT_ENTRIES];
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} __aligned(8);
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/*
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* Definition of the IDT descriptor.
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*/
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struct host_idt_descriptor {
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uint16_t len;
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struct host_idt *idt;
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} __packed;
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extern struct host_idt HOST_IDT;
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extern struct host_idt_descriptor HOST_IDTR;
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#else /* ASSEMBLER */
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/* Interrupt Descriptor Table (LDT) selectors are 16 bytes on x86-64 instead of 8 bytes. */
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#define X64_IDT_DESC_SIZE (0x10)
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/* Number of the HOST IDT entries */
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#define HOST_IDT_ENTRIES (0x100)
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/* Size of the IDT */
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#define HOST_IDT_SIZE (HOST_IDT_ENTRIES * X64_IDT_DESC_SIZE)
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#endif /* end #ifndef ASSEMBLER */
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#endif /* IDT_H */
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