37672958ac
There was a restriction that KERNEL_VM_OFFSET must equal to SRAM_OFFSET so that page directory pointer (PDP) or page directory (PD) can be reused. This is not very practical in real world due to various hardware designs, especially those where SRAM is not aligned to PDP or PD. So rework those bits. Signed-off-by: Daniel Leung <daniel.leung@intel.com>
67 lines
1.8 KiB
C
67 lines
1.8 KiB
C
/*
|
|
* Copyright (c) 2019 Intel Corporation
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
#ifndef ZEPHYR_ARCH_X86_INCLUDE_KERNEL_ARCH_DATA_H_
|
|
#define ZEPHYR_ARCH_X86_INCLUDE_KERNEL_ARCH_DATA_H_
|
|
|
|
/*
|
|
* Exception/interrupt vector definitions: vectors 20 to 31 are reserved
|
|
* for Intel; vectors 32 to 255 are user defined interrupt vectors.
|
|
*/
|
|
|
|
#define IV_DIVIDE_ERROR 0
|
|
#define IV_DEBUG 1
|
|
#define IV_NON_MASKABLE_INTERRUPT 2
|
|
#define IV_BREAKPOINT 3
|
|
#define IV_OVERFLOW 4
|
|
#define IV_BOUND_RANGE 5
|
|
#define IV_INVALID_OPCODE 6
|
|
#define IV_DEVICE_NOT_AVAILABLE 7
|
|
#define IV_DOUBLE_FAULT 8
|
|
#define IV_COPROC_SEGMENT_OVERRUN 9
|
|
#define IV_INVALID_TSS 10
|
|
#define IV_SEGMENT_NOT_PRESENT 11
|
|
#define IV_STACK_FAULT 12
|
|
#define IV_GENERAL_PROTECTION 13
|
|
#define IV_PAGE_FAULT 14
|
|
#define IV_RESERVED 15
|
|
#define IV_X87_FPU_FP_ERROR 16
|
|
#define IV_ALIGNMENT_CHECK 17
|
|
#define IV_MACHINE_CHECK 18
|
|
#define IV_SIMD_FP 19
|
|
#define IV_VIRT_EXCEPTION 20
|
|
#define IV_SECURITY_EXCEPTION 30
|
|
|
|
#define IV_IRQS 32 /* start of vectors available for IRQs */
|
|
#define IV_NR_VECTORS 256 /* total number of vectors */
|
|
|
|
/*
|
|
* EFLAGS/RFLAGS definitions. (RFLAGS is just zero-extended EFLAGS.)
|
|
*/
|
|
|
|
#define EFLAGS_IF BIT(9) /* interrupts enabled */
|
|
#define EFLAGS_DF BIT(10) /* Direction flag */
|
|
|
|
#define EFLAGS_INITIAL (EFLAGS_IF)
|
|
#define EFLAGS_SYSCALL (EFLAGS_IF | EFLAGS_DF)
|
|
/*
|
|
* Control register definitions.
|
|
*/
|
|
|
|
#define CR0_PG BIT(31) /* enable paging */
|
|
#define CR0_WP BIT(16) /* honor W bit even when supervisor */
|
|
|
|
#define CR4_PSE BIT(4) /* Page size extension (4MB pages) */
|
|
#define CR4_PAE BIT(5) /* enable PAE */
|
|
#define CR4_OSFXSR BIT(9) /* enable SSE (OS FXSAVE/RSTOR) */
|
|
|
|
#ifdef CONFIG_X86_64
|
|
#include <intel64/kernel_arch_data.h>
|
|
#else
|
|
#include <ia32/kernel_arch_data.h>
|
|
#endif
|
|
|
|
#endif /* ZEPHYR_ARCH_X86_INCLUDE_KERNEL_ARCH_DATA_H_ */
|