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hw_x86_64: Move GDT into mtc region
The GDT must be visible for non-core threads too.
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@ -136,43 +136,3 @@
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.quad 0
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.quad 0x20018f
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.fill 510, 8, 0x0
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/*******************************************
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** Global Descriptor Table **
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** See Intel SDM Vol. 3A, section 3.5.1. **
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*******************************************/
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.align 4
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.space 2
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_gdt_ptr:
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.word _gdt_end - _gdt_start - 1 /* limit */
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.long _gdt_start /* base address */
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.align 8
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_gdt_start:
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/* Null descriptor */
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.quad 0
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/* 64-bit code segment descriptor */
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.long 0
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/* GDTE_LONG | GDTE_PRESENT | GDTE_CODE | GDTE_NON_SYSTEM */
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.long 0x209800
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/* 64-bit data segment descriptor */
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.long 0
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/* GDTE_LONG | GDTE_PRESENT | GDTE_TYPE_DATA_A | GDTE_TYPE_DATA_W | GDTE_NON_SYSTEM */
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.long 0x209300
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/* 64-bit user code segment descriptor */
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.long 0
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/* GDTE_LONG | GDTE_PRESENT | GDTE_CODE | GDTE_NON_SYSTEM */
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.long 0x20f800
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/* 64-bit user data segment descriptor */
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.long 0
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/* GDTE_LONG | GDTE_PRESENT | GDTE_TYPE_DATA_A | GDTE_TYPE_DATA_W | GDTE_NON_SYSTEM */
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.long 0x20f300
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/* Task segment descriptor */
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.long 0x01000068
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/* GDTE_PRESENT | GDTE_SYS_TSS */
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.long 0x893a
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.long 0
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.long 0
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_gdt_end:
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@ -247,6 +247,47 @@
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_mt_idt:
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.space 1 << MIN_PAGE_SIZE_LOG2
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/******************************************
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** Global Descriptor Table (GDT) **
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** See Intel SDM Vol. 3A, section 3.5.1 **
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******************************************/
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.align 4
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.space 2
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.global _gdt_ptr
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_gdt_ptr:
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.word _gdt_end - _gdt_start - 1 /* limit */
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.long _gdt_start /* base address */
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.align 8
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_gdt_start:
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/* Null descriptor */
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.quad 0
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/* 64-bit code segment descriptor */
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.long 0
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/* GDTE_LONG | GDTE_PRESENT | GDTE_CODE | GDTE_NON_SYSTEM */
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.long 0x209800
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/* 64-bit data segment descriptor */
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.long 0
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/* GDTE_LONG | GDTE_PRESENT | GDTE_TYPE_DATA_A | GDTE_TYPE_DATA_W | GDTE_NON_SYSTEM */
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.long 0x209300
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/* 64-bit user code segment descriptor */
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.long 0
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/* GDTE_LONG | GDTE_PRESENT | GDTE_CODE | GDTE_NON_SYSTEM */
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.long 0x20f800
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/* 64-bit user data segment descriptor */
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.long 0
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/* GDTE_LONG | GDTE_PRESENT | GDTE_TYPE_DATA_A | GDTE_TYPE_DATA_W | GDTE_NON_SYSTEM */
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.long 0x20f300
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/* Task segment descriptor */
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.long 0x01000068
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/* GDTE_PRESENT | GDTE_SYS_TSS */
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.long 0x893a
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.long 0
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.long 0
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_gdt_end:
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/* end of the mode transition code */
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.global _mt_end
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_mt_end:
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