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Use base revision 1

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This commit is contained in:
mintsuki 2023-11-03 06:40:04 +01:00
parent 6c3707c731
commit 302427b1e1
1 changed files with 16 additions and 4 deletions
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20
kernel/src/main.c
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@ -1,12 +1,19 @@
#include <stdint.h>
#include <stddef.h>
#include <stdbool.h>
#include <limine.h>
// The Limine requests can be placed anywhere, but it is important that
// the compiler does not optimise them away, so, usually, they should
// be made volatile or equivalent.
// Set the base revision to 1, this is recommended as this is the latest
// base revision described by the Limine boot protocol specification.
// See specification for further info.
static volatile struct limine_framebuffer_request framebuffer_request = {
LIMINE_BASE_REVISION(1)
// The Limine requests can be placed anywhere, but it is important that
// the compiler does not optimise them away, so, in C, they should
// NOT be made "static".
struct limine_framebuffer_request framebuffer_request = {
.id = LIMINE_FRAMEBUFFER_REQUEST,
.revision = 0
};
@ -80,6 +87,11 @@ static void hcf(void) {
// If renaming _start() to something else, make sure to change the
// linker script accordingly.
void _start(void) {
// Ensure the bootloader actually understands our base revision (see spec).
if (LIMINE_BASE_REVISION_SUPPORTED == false) {
hcf();
}
// Ensure we got a framebuffer.
if (framebuffer_request.response == NULL
|| framebuffer_request.response->framebuffer_count < 1) {