locore: organize data by type
Program text, rodata, and data need different MMU permissions. Split out rodata and data from the program text, updating the linker script appropriately. Region size symbols added to the linker script, so these can later be used with MMU_BOOT_REGION(). Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
This commit is contained in:
Andrew Boie
Andrew Boie
parent
30ebf52a27
commit
cdd721db3b
2 changed files with 187 additions and 172 deletions
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@ -252,179 +252,8 @@ __resume:
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1: iretq
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1: iretq
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/*
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* GDT - a single GDT is shared by all threads (and, eventually, all CPUs).
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* This layout must agree with the selectors in intel64/kernel_arch_data.h.
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*/
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.align 8
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gdt:
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.word 0, 0, 0, 0 /* 0x00: null descriptor */
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.word 0xFFFF, 0, 0x9A00, 0x00CF /* 0x08: 32-bit kernel code */
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.word 0xFFFF, 0, 0x9200, 0x00CF /* 0x10: 32-bit kernel data */
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.word 0, 0, 0x9800, 0x0020 /* 0x18: 64-bit kernel code */
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.word 0, 0, 0x9200, 0x0000 /* 0x20: 64-bit kernel data */
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.word 0, 0, 0, 0 /* 0x28: unused */
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/*
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* CPU 0 task state segment descriptors
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*/
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.word 0 /* 0x30: 64-bit TSS data (for GS) */
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.word tss0
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.word 0x9200
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.word 0
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.word 0, 0, 0, 0 /* 0x38: unused */
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.word __X86_TSS64_SIZEOF-1 /* 0x40: 64-bit TSS (16-byte entry) */
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.word tss0
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.word 0x8900
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.word 0, 0, 0, 0, 0
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#if CONFIG_MP_NUM_CPUS > 1
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/*
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* CPU 1 task state segment descriptors
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*/
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.word 0 /* 0x50: 64-bit TSS data (for GS) */
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.word tss1
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.word 0x9200
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.word 0
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.word 0, 0, 0, 0 /* 0x58: unused */
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.word __X86_TSS64_SIZEOF-1 /* 0x60: 64-bit TSS (16-byte entry) */
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.word tss1
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.word 0x8900
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.word 0, 0, 0, 0, 0
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#endif
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#if CONFIG_MP_NUM_CPUS > 2
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/*
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* CPU 2 task state segment descriptors
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*/
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.word 0 /* 0x70: 64-bit TSS data (for GS) */
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.word tss2
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.word 0x9200
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.word 0
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.word 0, 0, 0, 0 /* 0x78: unused */
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.word __X86_TSS64_SIZEOF-1 /* 0x80: 64-bit TSS (16-byte entry) */
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.word tss2
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.word 0x8900
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.word 0, 0, 0, 0, 0
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#endif
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#if CONFIG_MP_NUM_CPUS > 3
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/*
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* CPU 3 task state segment descriptors
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*/
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.word 0 /* 0x90: 64-bit TSS data (for GS) */
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.word tss3
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.word 0x9200
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.word 0
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.word 0, 0, 0, 0 /* 0x98: unused */
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.word __X86_TSS64_SIZEOF-1 /* 0xA0: 64-bit TSS (16-byte entry) */
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.word tss3
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.word 0x8900
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.word 0, 0, 0, 0, 0
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#endif
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gdt48:
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.word (gdt48 - gdt - 1)
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.long gdt
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/*
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* IDT.
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*/
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#define TRAP 0x8f
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#define INTR 0x8e
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#define IDT(nr, type, ist) \
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.word vector_ ## nr, X86_KERNEL_CS; \
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.byte ist, type; \
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.word 0, 0, 0, 0, 0
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.align 16
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idt:
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IDT( 0, TRAP, 7); IDT( 1, TRAP, 7); IDT( 2, TRAP, 7); IDT( 3, TRAP, 7)
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IDT( 4, TRAP, 7); IDT( 5, TRAP, 7); IDT( 6, TRAP, 7); IDT( 7, TRAP, 7)
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IDT( 8, TRAP, 7); IDT( 9, TRAP, 7); IDT( 10, TRAP, 7); IDT( 11, TRAP, 7)
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IDT( 12, TRAP, 7); IDT( 13, TRAP, 7); IDT( 14, TRAP, 7); IDT( 15, TRAP, 7)
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IDT( 16, TRAP, 7); IDT( 17, TRAP, 7); IDT( 18, TRAP, 7); IDT( 19, TRAP, 7)
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IDT( 20, TRAP, 7); IDT( 21, TRAP, 7); IDT( 22, TRAP, 7); IDT( 23, TRAP, 7)
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IDT( 24, TRAP, 7); IDT( 25, TRAP, 7); IDT( 26, TRAP, 7); IDT( 27, TRAP, 7)
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IDT( 28, TRAP, 7); IDT( 29, TRAP, 7); IDT( 30, TRAP, 7); IDT( 31, TRAP, 7)
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IDT( 32, INTR, 1); IDT( 33, INTR, 1); IDT( 34, INTR, 1); IDT( 35, INTR, 1)
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IDT( 36, INTR, 1); IDT( 37, INTR, 1); IDT( 38, INTR, 1); IDT( 39, INTR, 1)
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IDT( 40, INTR, 1); IDT( 41, INTR, 1); IDT( 42, INTR, 1); IDT( 43, INTR, 1)
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IDT( 44, INTR, 1); IDT( 45, INTR, 1); IDT( 46, INTR, 1); IDT( 47, INTR, 1)
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IDT( 48, INTR, 1); IDT( 49, INTR, 1); IDT( 50, INTR, 1); IDT( 51, INTR, 1)
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IDT( 52, INTR, 1); IDT( 53, INTR, 1); IDT( 54, INTR, 1); IDT( 55, INTR, 1)
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IDT( 56, INTR, 1); IDT( 57, INTR, 1); IDT( 58, INTR, 1); IDT( 59, INTR, 1)
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IDT( 60, INTR, 1); IDT( 61, INTR, 1); IDT( 62, INTR, 1); IDT( 63, INTR, 1)
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IDT( 64, INTR, 1); IDT( 65, INTR, 1); IDT( 66, INTR, 1); IDT( 67, INTR, 1)
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IDT( 68, INTR, 1); IDT( 69, INTR, 1); IDT( 70, INTR, 1); IDT( 71, INTR, 1)
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IDT( 72, INTR, 1); IDT( 73, INTR, 1); IDT( 74, INTR, 1); IDT( 75, INTR, 1)
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IDT( 76, INTR, 1); IDT( 77, INTR, 1); IDT( 78, INTR, 1); IDT( 79, INTR, 1)
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IDT( 80, INTR, 1); IDT( 81, INTR, 1); IDT( 82, INTR, 1); IDT( 83, INTR, 1)
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IDT( 84, INTR, 1); IDT( 85, INTR, 1); IDT( 86, INTR, 1); IDT( 87, INTR, 1)
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IDT( 88, INTR, 1); IDT( 89, INTR, 1); IDT( 90, INTR, 1); IDT( 91, INTR, 1)
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IDT( 92, INTR, 1); IDT( 93, INTR, 1); IDT( 94, INTR, 1); IDT( 95, INTR, 1)
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IDT( 96, INTR, 1); IDT( 97, INTR, 1); IDT( 98, INTR, 1); IDT( 99, INTR, 1)
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IDT(100, INTR, 1); IDT(101, INTR, 1); IDT(102, INTR, 1); IDT(103, INTR, 1)
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IDT(104, INTR, 1); IDT(105, INTR, 1); IDT(106, INTR, 1); IDT(107, INTR, 1)
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IDT(108, INTR, 1); IDT(109, INTR, 1); IDT(110, INTR, 1); IDT(111, INTR, 1)
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IDT(112, INTR, 1); IDT(113, INTR, 1); IDT(114, INTR, 1); IDT(115, INTR, 1)
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IDT(116, INTR, 1); IDT(117, INTR, 1); IDT(118, INTR, 1); IDT(119, INTR, 1)
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IDT(120, INTR, 1); IDT(121, INTR, 1); IDT(122, INTR, 1); IDT(123, INTR, 1)
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IDT(124, INTR, 1); IDT(125, INTR, 1); IDT(126, INTR, 1); IDT(127, INTR, 1)
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IDT(128, INTR, 1); IDT(129, INTR, 1); IDT(130, INTR, 1); IDT(131, INTR, 1)
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IDT(132, INTR, 1); IDT(133, INTR, 1); IDT(134, INTR, 1); IDT(135, INTR, 1)
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IDT(136, INTR, 1); IDT(137, INTR, 1); IDT(138, INTR, 1); IDT(139, INTR, 1)
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IDT(140, INTR, 1); IDT(141, INTR, 1); IDT(142, INTR, 1); IDT(143, INTR, 1)
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IDT(144, INTR, 1); IDT(145, INTR, 1); IDT(146, INTR, 1); IDT(147, INTR, 1)
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IDT(148, INTR, 1); IDT(149, INTR, 1); IDT(150, INTR, 1); IDT(151, INTR, 1)
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IDT(152, INTR, 1); IDT(153, INTR, 1); IDT(154, INTR, 1); IDT(155, INTR, 1)
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IDT(156, INTR, 1); IDT(157, INTR, 1); IDT(158, INTR, 1); IDT(159, INTR, 1)
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IDT(160, INTR, 1); IDT(161, INTR, 1); IDT(162, INTR, 1); IDT(163, INTR, 1)
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IDT(164, INTR, 1); IDT(165, INTR, 1); IDT(166, INTR, 1); IDT(167, INTR, 1)
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IDT(168, INTR, 1); IDT(169, INTR, 1); IDT(170, INTR, 1); IDT(171, INTR, 1)
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IDT(172, INTR, 1); IDT(173, INTR, 1); IDT(174, INTR, 1); IDT(175, INTR, 1)
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IDT(176, INTR, 1); IDT(177, INTR, 1); IDT(178, INTR, 1); IDT(179, INTR, 1)
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IDT(180, INTR, 1); IDT(181, INTR, 1); IDT(182, INTR, 1); IDT(183, INTR, 1)
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IDT(184, INTR, 1); IDT(185, INTR, 1); IDT(186, INTR, 1); IDT(187, INTR, 1)
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IDT(188, INTR, 1); IDT(189, INTR, 1); IDT(190, INTR, 1); IDT(191, INTR, 1)
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IDT(192, INTR, 1); IDT(193, INTR, 1); IDT(194, INTR, 1); IDT(195, INTR, 1)
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IDT(196, INTR, 1); IDT(197, INTR, 1); IDT(198, INTR, 1); IDT(199, INTR, 1)
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IDT(200, INTR, 1); IDT(201, INTR, 1); IDT(202, INTR, 1); IDT(203, INTR, 1)
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IDT(204, INTR, 1); IDT(205, INTR, 1); IDT(206, INTR, 1); IDT(207, INTR, 1)
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IDT(208, INTR, 1); IDT(209, INTR, 1); IDT(210, INTR, 1); IDT(211, INTR, 1)
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IDT(212, INTR, 1); IDT(213, INTR, 1); IDT(214, INTR, 1); IDT(215, INTR, 1)
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IDT(216, INTR, 1); IDT(217, INTR, 1); IDT(218, INTR, 1); IDT(219, INTR, 1)
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IDT(220, INTR, 1); IDT(221, INTR, 1); IDT(222, INTR, 1); IDT(223, INTR, 1)
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IDT(224, INTR, 1); IDT(225, INTR, 1); IDT(226, INTR, 1); IDT(227, INTR, 1)
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IDT(228, INTR, 1); IDT(229, INTR, 1); IDT(230, INTR, 1); IDT(231, INTR, 1)
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IDT(232, INTR, 1); IDT(233, INTR, 1); IDT(234, INTR, 1); IDT(235, INTR, 1)
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IDT(236, INTR, 1); IDT(237, INTR, 1); IDT(238, INTR, 1); IDT(239, INTR, 1)
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IDT(240, INTR, 1); IDT(241, INTR, 1); IDT(242, INTR, 1); IDT(243, INTR, 1)
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IDT(244, INTR, 1); IDT(245, INTR, 1); IDT(246, INTR, 1); IDT(247, INTR, 1)
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IDT(248, INTR, 1); IDT(249, INTR, 1); IDT(250, INTR, 1); IDT(251, INTR, 1)
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IDT(252, INTR, 1); IDT(253, INTR, 1); IDT(254, INTR, 1); IDT(255, INTR, 1)
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idt48:
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.word (idt48 - idt - 1)
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.long idt
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#define EXCEPT_CODE(nr) vector_ ## nr: pushq $nr; jmp except
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#define EXCEPT_CODE(nr) vector_ ## nr: pushq $nr; jmp except
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#define EXCEPT(nr) vector_ ## nr: pushq $0; pushq $nr; jmp except
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#define EXCEPT(nr) vector_ ## nr: pushq $0; pushq $nr; jmp except
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@ -626,6 +455,92 @@ IRQ(232); IRQ(233); IRQ(234); IRQ(235); IRQ(236); IRQ(237); IRQ(238); IRQ(239)
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IRQ(240); IRQ(241); IRQ(242); IRQ(243); IRQ(244); IRQ(245); IRQ(246); IRQ(247)
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IRQ(240); IRQ(241); IRQ(242); IRQ(243); IRQ(244); IRQ(245); IRQ(246); IRQ(247)
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IRQ(248); IRQ(249); IRQ(250); IRQ(251); IRQ(252); IRQ(253); IRQ(254); IRQ(255)
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IRQ(248); IRQ(249); IRQ(250); IRQ(251); IRQ(252); IRQ(253); IRQ(254); IRQ(255)
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.section .lorodata,"a"
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/*
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* IDT.
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*/
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#define TRAP 0x8f
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#define INTR 0x8e
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#define IDT(nr, type, ist) \
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.word vector_ ## nr, X86_KERNEL_CS; \
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.byte ist, type; \
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.word 0, 0, 0, 0, 0
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.align 16
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idt:
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IDT( 0, TRAP, 7); IDT( 1, TRAP, 7); IDT( 2, TRAP, 7); IDT( 3, TRAP, 7)
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IDT( 4, TRAP, 7); IDT( 5, TRAP, 7); IDT( 6, TRAP, 7); IDT( 7, TRAP, 7)
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IDT( 8, TRAP, 7); IDT( 9, TRAP, 7); IDT( 10, TRAP, 7); IDT( 11, TRAP, 7)
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IDT( 12, TRAP, 7); IDT( 13, TRAP, 7); IDT( 14, TRAP, 7); IDT( 15, TRAP, 7)
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IDT( 16, TRAP, 7); IDT( 17, TRAP, 7); IDT( 18, TRAP, 7); IDT( 19, TRAP, 7)
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IDT( 20, TRAP, 7); IDT( 21, TRAP, 7); IDT( 22, TRAP, 7); IDT( 23, TRAP, 7)
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IDT( 24, TRAP, 7); IDT( 25, TRAP, 7); IDT( 26, TRAP, 7); IDT( 27, TRAP, 7)
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IDT( 28, TRAP, 7); IDT( 29, TRAP, 7); IDT( 30, TRAP, 7); IDT( 31, TRAP, 7)
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IDT( 32, INTR, 1); IDT( 33, INTR, 1); IDT( 34, INTR, 1); IDT( 35, INTR, 1)
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IDT( 36, INTR, 1); IDT( 37, INTR, 1); IDT( 38, INTR, 1); IDT( 39, INTR, 1)
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IDT( 40, INTR, 1); IDT( 41, INTR, 1); IDT( 42, INTR, 1); IDT( 43, INTR, 1)
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IDT( 44, INTR, 1); IDT( 45, INTR, 1); IDT( 46, INTR, 1); IDT( 47, INTR, 1)
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IDT( 48, INTR, 1); IDT( 49, INTR, 1); IDT( 50, INTR, 1); IDT( 51, INTR, 1)
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IDT( 52, INTR, 1); IDT( 53, INTR, 1); IDT( 54, INTR, 1); IDT( 55, INTR, 1)
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IDT( 56, INTR, 1); IDT( 57, INTR, 1); IDT( 58, INTR, 1); IDT( 59, INTR, 1)
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IDT( 60, INTR, 1); IDT( 61, INTR, 1); IDT( 62, INTR, 1); IDT( 63, INTR, 1)
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IDT( 64, INTR, 1); IDT( 65, INTR, 1); IDT( 66, INTR, 1); IDT( 67, INTR, 1)
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IDT( 68, INTR, 1); IDT( 69, INTR, 1); IDT( 70, INTR, 1); IDT( 71, INTR, 1)
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IDT( 72, INTR, 1); IDT( 73, INTR, 1); IDT( 74, INTR, 1); IDT( 75, INTR, 1)
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IDT( 76, INTR, 1); IDT( 77, INTR, 1); IDT( 78, INTR, 1); IDT( 79, INTR, 1)
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IDT( 80, INTR, 1); IDT( 81, INTR, 1); IDT( 82, INTR, 1); IDT( 83, INTR, 1)
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IDT( 84, INTR, 1); IDT( 85, INTR, 1); IDT( 86, INTR, 1); IDT( 87, INTR, 1)
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IDT( 88, INTR, 1); IDT( 89, INTR, 1); IDT( 90, INTR, 1); IDT( 91, INTR, 1)
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IDT( 92, INTR, 1); IDT( 93, INTR, 1); IDT( 94, INTR, 1); IDT( 95, INTR, 1)
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IDT( 96, INTR, 1); IDT( 97, INTR, 1); IDT( 98, INTR, 1); IDT( 99, INTR, 1)
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IDT(100, INTR, 1); IDT(101, INTR, 1); IDT(102, INTR, 1); IDT(103, INTR, 1)
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IDT(104, INTR, 1); IDT(105, INTR, 1); IDT(106, INTR, 1); IDT(107, INTR, 1)
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IDT(108, INTR, 1); IDT(109, INTR, 1); IDT(110, INTR, 1); IDT(111, INTR, 1)
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IDT(112, INTR, 1); IDT(113, INTR, 1); IDT(114, INTR, 1); IDT(115, INTR, 1)
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IDT(116, INTR, 1); IDT(117, INTR, 1); IDT(118, INTR, 1); IDT(119, INTR, 1)
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IDT(120, INTR, 1); IDT(121, INTR, 1); IDT(122, INTR, 1); IDT(123, INTR, 1)
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IDT(124, INTR, 1); IDT(125, INTR, 1); IDT(126, INTR, 1); IDT(127, INTR, 1)
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IDT(128, INTR, 1); IDT(129, INTR, 1); IDT(130, INTR, 1); IDT(131, INTR, 1)
|
||||||
|
IDT(132, INTR, 1); IDT(133, INTR, 1); IDT(134, INTR, 1); IDT(135, INTR, 1)
|
||||||
|
IDT(136, INTR, 1); IDT(137, INTR, 1); IDT(138, INTR, 1); IDT(139, INTR, 1)
|
||||||
|
IDT(140, INTR, 1); IDT(141, INTR, 1); IDT(142, INTR, 1); IDT(143, INTR, 1)
|
||||||
|
IDT(144, INTR, 1); IDT(145, INTR, 1); IDT(146, INTR, 1); IDT(147, INTR, 1)
|
||||||
|
IDT(148, INTR, 1); IDT(149, INTR, 1); IDT(150, INTR, 1); IDT(151, INTR, 1)
|
||||||
|
IDT(152, INTR, 1); IDT(153, INTR, 1); IDT(154, INTR, 1); IDT(155, INTR, 1)
|
||||||
|
IDT(156, INTR, 1); IDT(157, INTR, 1); IDT(158, INTR, 1); IDT(159, INTR, 1)
|
||||||
|
IDT(160, INTR, 1); IDT(161, INTR, 1); IDT(162, INTR, 1); IDT(163, INTR, 1)
|
||||||
|
IDT(164, INTR, 1); IDT(165, INTR, 1); IDT(166, INTR, 1); IDT(167, INTR, 1)
|
||||||
|
IDT(168, INTR, 1); IDT(169, INTR, 1); IDT(170, INTR, 1); IDT(171, INTR, 1)
|
||||||
|
IDT(172, INTR, 1); IDT(173, INTR, 1); IDT(174, INTR, 1); IDT(175, INTR, 1)
|
||||||
|
IDT(176, INTR, 1); IDT(177, INTR, 1); IDT(178, INTR, 1); IDT(179, INTR, 1)
|
||||||
|
IDT(180, INTR, 1); IDT(181, INTR, 1); IDT(182, INTR, 1); IDT(183, INTR, 1)
|
||||||
|
IDT(184, INTR, 1); IDT(185, INTR, 1); IDT(186, INTR, 1); IDT(187, INTR, 1)
|
||||||
|
IDT(188, INTR, 1); IDT(189, INTR, 1); IDT(190, INTR, 1); IDT(191, INTR, 1)
|
||||||
|
IDT(192, INTR, 1); IDT(193, INTR, 1); IDT(194, INTR, 1); IDT(195, INTR, 1)
|
||||||
|
IDT(196, INTR, 1); IDT(197, INTR, 1); IDT(198, INTR, 1); IDT(199, INTR, 1)
|
||||||
|
IDT(200, INTR, 1); IDT(201, INTR, 1); IDT(202, INTR, 1); IDT(203, INTR, 1)
|
||||||
|
IDT(204, INTR, 1); IDT(205, INTR, 1); IDT(206, INTR, 1); IDT(207, INTR, 1)
|
||||||
|
IDT(208, INTR, 1); IDT(209, INTR, 1); IDT(210, INTR, 1); IDT(211, INTR, 1)
|
||||||
|
IDT(212, INTR, 1); IDT(213, INTR, 1); IDT(214, INTR, 1); IDT(215, INTR, 1)
|
||||||
|
IDT(216, INTR, 1); IDT(217, INTR, 1); IDT(218, INTR, 1); IDT(219, INTR, 1)
|
||||||
|
IDT(220, INTR, 1); IDT(221, INTR, 1); IDT(222, INTR, 1); IDT(223, INTR, 1)
|
||||||
|
IDT(224, INTR, 1); IDT(225, INTR, 1); IDT(226, INTR, 1); IDT(227, INTR, 1)
|
||||||
|
IDT(228, INTR, 1); IDT(229, INTR, 1); IDT(230, INTR, 1); IDT(231, INTR, 1)
|
||||||
|
IDT(232, INTR, 1); IDT(233, INTR, 1); IDT(234, INTR, 1); IDT(235, INTR, 1)
|
||||||
|
IDT(236, INTR, 1); IDT(237, INTR, 1); IDT(238, INTR, 1); IDT(239, INTR, 1)
|
||||||
|
IDT(240, INTR, 1); IDT(241, INTR, 1); IDT(242, INTR, 1); IDT(243, INTR, 1)
|
||||||
|
IDT(244, INTR, 1); IDT(245, INTR, 1); IDT(246, INTR, 1); IDT(247, INTR, 1)
|
||||||
|
IDT(248, INTR, 1); IDT(249, INTR, 1); IDT(250, INTR, 1); IDT(251, INTR, 1)
|
||||||
|
IDT(252, INTR, 1); IDT(253, INTR, 1); IDT(254, INTR, 1); IDT(255, INTR, 1)
|
||||||
|
|
||||||
|
idt48:
|
||||||
|
.word (idt48 - idt - 1)
|
||||||
|
.long idt
|
||||||
|
|
||||||
/*
|
/*
|
||||||
* Page tables. Long mode requires them, but we don't implement any memory
|
* Page tables. Long mode requires them, but we don't implement any memory
|
||||||
* protection yet, so these simply identity-map the first 4GB w/ 1GB pages.
|
* protection yet, so these simply identity-map the first 4GB w/ 1GB pages.
|
||||||
|
|
@ -648,6 +563,98 @@ pdp: .long 0x00000183 /* 0x183 = G, 1GB, R/W, P */
|
||||||
.long 0
|
.long 0
|
||||||
.fill 4064, 1, 0
|
.fill 4064, 1, 0
|
||||||
|
|
||||||
|
.section .lodata,"ad"
|
||||||
|
|
||||||
|
/*
|
||||||
|
* GDT - a single GDT is shared by all threads (and, eventually, all CPUs).
|
||||||
|
* This layout must agree with the selectors in intel64/kernel_arch_data.h.
|
||||||
|
*/
|
||||||
|
|
||||||
|
.align 8
|
||||||
|
|
||||||
|
gdt:
|
||||||
|
.word 0, 0, 0, 0 /* 0x00: null descriptor */
|
||||||
|
.word 0xFFFF, 0, 0x9A00, 0x00CF /* 0x08: 32-bit kernel code */
|
||||||
|
.word 0xFFFF, 0, 0x9200, 0x00CF /* 0x10: 32-bit kernel data */
|
||||||
|
.word 0, 0, 0x9800, 0x0020 /* 0x18: 64-bit kernel code */
|
||||||
|
.word 0, 0, 0x9200, 0x0000 /* 0x20: 64-bit kernel data */
|
||||||
|
|
||||||
|
.word 0, 0, 0, 0 /* 0x28: unused */
|
||||||
|
|
||||||
|
/*
|
||||||
|
* CPU 0 task state segment descriptors
|
||||||
|
*/
|
||||||
|
|
||||||
|
.word 0 /* 0x30: 64-bit TSS data (for GS) */
|
||||||
|
.word tss0
|
||||||
|
.word 0x9200
|
||||||
|
.word 0
|
||||||
|
|
||||||
|
.word 0, 0, 0, 0 /* 0x38: unused */
|
||||||
|
|
||||||
|
.word __X86_TSS64_SIZEOF-1 /* 0x40: 64-bit TSS (16-byte entry) */
|
||||||
|
.word tss0
|
||||||
|
.word 0x8900
|
||||||
|
.word 0, 0, 0, 0, 0
|
||||||
|
|
||||||
|
#if CONFIG_MP_NUM_CPUS > 1
|
||||||
|
/*
|
||||||
|
* CPU 1 task state segment descriptors
|
||||||
|
*/
|
||||||
|
|
||||||
|
.word 0 /* 0x50: 64-bit TSS data (for GS) */
|
||||||
|
.word tss1
|
||||||
|
.word 0x9200
|
||||||
|
.word 0
|
||||||
|
|
||||||
|
.word 0, 0, 0, 0 /* 0x58: unused */
|
||||||
|
|
||||||
|
.word __X86_TSS64_SIZEOF-1 /* 0x60: 64-bit TSS (16-byte entry) */
|
||||||
|
.word tss1
|
||||||
|
.word 0x8900
|
||||||
|
.word 0, 0, 0, 0, 0
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#if CONFIG_MP_NUM_CPUS > 2
|
||||||
|
/*
|
||||||
|
* CPU 2 task state segment descriptors
|
||||||
|
*/
|
||||||
|
|
||||||
|
.word 0 /* 0x70: 64-bit TSS data (for GS) */
|
||||||
|
.word tss2
|
||||||
|
.word 0x9200
|
||||||
|
.word 0
|
||||||
|
|
||||||
|
.word 0, 0, 0, 0 /* 0x78: unused */
|
||||||
|
|
||||||
|
.word __X86_TSS64_SIZEOF-1 /* 0x80: 64-bit TSS (16-byte entry) */
|
||||||
|
.word tss2
|
||||||
|
.word 0x8900
|
||||||
|
.word 0, 0, 0, 0, 0
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#if CONFIG_MP_NUM_CPUS > 3
|
||||||
|
/*
|
||||||
|
* CPU 3 task state segment descriptors
|
||||||
|
*/
|
||||||
|
|
||||||
|
.word 0 /* 0x90: 64-bit TSS data (for GS) */
|
||||||
|
.word tss3
|
||||||
|
.word 0x9200
|
||||||
|
.word 0
|
||||||
|
|
||||||
|
.word 0, 0, 0, 0 /* 0x98: unused */
|
||||||
|
|
||||||
|
.word __X86_TSS64_SIZEOF-1 /* 0xA0: 64-bit TSS (16-byte entry) */
|
||||||
|
.word tss3
|
||||||
|
.word 0x8900
|
||||||
|
.word 0, 0, 0, 0, 0
|
||||||
|
#endif
|
||||||
|
|
||||||
|
gdt48:
|
||||||
|
.word (gdt48 - gdt - 1)
|
||||||
|
.long gdt
|
||||||
|
|
||||||
/*
|
/*
|
||||||
* Known-good stack for handling CPU exceptions.
|
* Known-good stack for handling CPU exceptions.
|
||||||
*/
|
*/
|
||||||
|
|
|
||||||
|
|
@ -27,10 +27,18 @@ SECTIONS
|
||||||
_locore_start = .;
|
_locore_start = .;
|
||||||
*(.locore)
|
*(.locore)
|
||||||
*(.locore.*)
|
*(.locore.*)
|
||||||
|
_lorodata_start = .;
|
||||||
|
*(.lorodata)
|
||||||
|
_lodata_start = .;
|
||||||
*(.tss)
|
*(.tss)
|
||||||
_locore_end = .;
|
*(.lodata)
|
||||||
|
_lodata_end = .;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
_locore_size = _lorodata_start - _locore_start;
|
||||||
|
_lorodata_size = _lodata_start - _lorodata_start;
|
||||||
|
_lodata_size = _lodata_end - _lodata_start;
|
||||||
|
|
||||||
/*
|
/*
|
||||||
* The rest of the system is loaded in "normal" memory (typically
|
* The rest of the system is loaded in "normal" memory (typically
|
||||||
* placed above 1MB to avoid the by memory hole at 0x90000-0xFFFFF).
|
* placed above 1MB to avoid the by memory hole at 0x90000-0xFFFFF).
|
||||||
|
|
|
||||||
Loading…
Add table
Add a link
Reference in a new issue