From a6c1174b3fb598cd59c1668cfc4d4746ab688079 Mon Sep 17 00:00:00 2001 From: aqua Date: Fri, 1 Apr 2022 11:38:00 +0300 Subject: lidt --- arch/i686/lgdt.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) (limited to 'arch/i686/lgdt.c') diff --git a/arch/i686/lgdt.c b/arch/i686/lgdt.c index 2d35e8d..2be5d30 100644 --- a/arch/i686/lgdt.c +++ b/arch/i686/lgdt.c @@ -1,5 +1,10 @@ #include +struct __attribute__((packed)) Pointer { + uint16_t limit; + uint32_t base; +}; + static struct SegmentDescriptor_t segments[8] __attribute__((aligned(32))); void @@ -9,8 +14,7 @@ gdt_install() SegmentDescriptor(&segments[2], 0, 0xffffffff, 0x9a); // ktext SegmentDescriptor(&segments[3], 0, 0xffffffff, 0x92); // kdata - struct Pointer ptr = {.limit = sizeof(segments) - 1, .base = (unsigned)&segments}; - + const struct Pointer ptr = {.limit = sizeof(segments) - 1, .base = (unsigned)&segments}; asm volatile("lgdt (%0)" : : "a"(&ptr)); // load the kernel data segment -- cgit v1.2.1