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| author | Jon Santmyer <jon@jonsantmyer.com> | 2026-09-13 12:11:20 -0400 |
|---|---|---|
| committer | Jon Santmyer <jon@jonsantmyer.com> | 2026-09-13 12:11:20 -0400 |
| commit | 1f4260648f02db1b4fe8c60fe36f936125042880 (patch) | |
| tree | eca85c6026c9c403a03f4706c38782bae8fb7445 /arch/x86_64/hal/gdt.c | |
| parent | 24136157aae8c88f9397903157adf8f6237d73c0 (diff) | |
| download | jove-kernel-1f4260648f02db1b4fe8c60fe36f936125042880.tar.gz jove-kernel-1f4260648f02db1b4fe8c60fe36f936125042880.tar.bz2 jove-kernel-1f4260648f02db1b4fe8c60fe36f936125042880.zip | |
add usermode io access obj
Diffstat (limited to 'arch/x86_64/hal/gdt.c')
| -rw-r--r-- | arch/x86_64/hal/gdt.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86_64/hal/gdt.c b/arch/x86_64/hal/gdt.c index a64bdc1..fc7aa8b 100644 --- a/arch/x86_64/hal/gdt.c +++ b/arch/x86_64/hal/gdt.c @@ -53,6 +53,7 @@ void gdt_setup(processor_t *processor) { memcpy(processor->gdt, _gdt, sizeof(struct gdt_entry) * (GDT_TSS_HI+1)); + memset(processor->iopb, 0, 0x2000); struct gdt_descriptor gdtr; gdtr.base = (uintptr_t)&processor->gdt; @@ -76,6 +77,8 @@ gdt_setup(processor_t *processor) tss_lo->limit_0_15 = (uint16_t)(tss_limit & 0xFFFF); tss_lo->limit_flg |= (uint8_t)((tss_limit >> 16) & 0xF); + processor->tss.iopb = sizeof(struct tss); + extern void load_tss(void); load_tss(); } |