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define kernel data segment as 64bit data segment

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This commit is contained in:
Stefan Lankes 2017-08-21 00:45:25 +02:00 • committed by GitHub
parent 81c7b8dac0
commit e2803e606b
1 changed files with 2 additions and 2 deletions
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4
arch/x86/kernel/gdt.c
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@ -117,7 +117,7 @@ void gdt_install(void)
* this entry's access byte says it's a Data Segment
*/
gdt_set_gate(num++, 0, 0,
GDT_FLAG_RING0 | GDT_FLAG_SEGMENT | GDT_FLAG_DATASEG | GDT_FLAG_PRESENT, 0);
GDT_FLAG_RING0 | GDT_FLAG_SEGMENT | GDT_FLAG_DATASEG | GDT_FLAG_PRESENT, GDT_FLAG_64_BIT);
/*
* Create code segment for 32bit user-space applications (ring 3)
@ -141,7 +141,7 @@ void gdt_install(void)
* Create data segment for 64bit user-space applications (ring 3)
*/
gdt_set_gate(num++, 0, 0,
GDT_FLAG_RING3 | GDT_FLAG_SEGMENT | GDT_FLAG_DATASEG | GDT_FLAG_PRESENT, 0);
GDT_FLAG_RING3 | GDT_FLAG_SEGMENT | GDT_FLAG_DATASEG | GDT_FLAG_PRESENT, GDT_FLAG_64_BIT);
/*
* Create TSS for each core (we use these segments for task switching)