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menu: Move protocol logic from entry.s3.c to menu.c

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This commit is contained in:
mintsuki 2021-12-11 15:34:30 +01:00
parent 3bb754e627
commit 0527dac6f8
4 changed files with 106 additions and 65 deletions
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2
Makefile
View File

@ -375,7 +375,7 @@ full-hybrid-test:
sudo cp -rv test/* test_image/boot/
xorriso -as mkisofs -b boot/limine-cd.bin -no-emul-boot -boot-load-size 4 -boot-info-table --efi-boot boot/limine-eltorito-efi.bin -efi-boot-part --efi-boot-image --protective-msdos-label test_image/ -o test.iso
$(BINDIR)/limine-install test.iso
qemu-system-x86_64 -M q35 -bios ovmf-x64/OVMF.fd -net none -smp 4 -cdrom test.iso -debugcon stdio
qemu-system-x86_64 -m 512M -M q35 -bios ovmf-x64/OVMF.fd -net none -smp 4 -cdrom test.iso -debugcon stdio
qemu-system-x86_64 -m 512M -M q35 -bios ovmf-x64/OVMF.fd -net none -smp 4 -hda test.iso -debugcon stdio
qemu-system-x86_64 -m 512M -M q35 -bios ovmf-ia32/OVMF.fd -net none -smp 4 -cdrom test.iso -debugcon stdio
qemu-system-x86_64 -m 512M -M q35 -bios ovmf-ia32/OVMF.fd -net none -smp 4 -hda test.iso -debugcon stdio

56
stage23/entry.s3.c
View File

@ -13,12 +13,6 @@
#include <fs/file.h>
#include <lib/elf.h>
#include <mm/pmm.h>
#include <protos/stivale.h>
#include <protos/stivale2.h>
#include <protos/linux.h>
#include <protos/chainload.h>
#include <protos/multiboot1.h>
#include <protos/multiboot2.h>
#include <menu.h>
#include <pxe/pxe.h>
#include <pxe/tftp.h>
@ -163,53 +157,5 @@ void stage3_common(void) {
print("Boot partition: %d\n", boot_volume->partition);
}
bool disable_timeout = false;
menu_again:;
char *cmdline;
char *config = menu(&cmdline, disable_timeout);
char *proto = config_get_value(config, 0, "PROTOCOL");
if (proto == NULL) {
printv("PROTOCOL not specified, using autodetection...\n");
autodetect:
stivale2_load(config, cmdline);
stivale_load(config, cmdline);
multiboot2_load(config, cmdline);
multiboot1_load(config, cmdline);
linux_load(config, cmdline);
panic("Kernel protocol autodetection failed");
}
bool ret = true;
if (!strcmp(proto, "stivale1") || !strcmp(proto, "stivale")) {
ret = stivale_load(config, cmdline);
} else if (!strcmp(proto, "stivale2")) {
ret = stivale2_load(config, cmdline);
} else if (!strcmp(proto, "linux")) {
ret = linux_load(config, cmdline);
} else if (!strcmp(proto, "multiboot1") || !strcmp(proto, "multiboot")) {
ret = multiboot1_load(config, cmdline);
} else if (!strcmp(proto, "multiboot2")) {
ret = multiboot2_load(config, cmdline);
} else if (!strcmp(proto, "chainload")) {
chainload(config);
}
if (ret) {
print("WARNING: Unsupported protocol specified: %s.\n", proto);
} else {
print("WARNING: Incorrect protocol specified for kernel.\n");
}
print(" Press A to attempt autodetection or any other key to return to menu.\n");
int c = getchar();
if (c == 'a' || c == 'A') {
goto autodetect;
} else {
disable_timeout = true;
goto menu_again;
}
menu(true);
}

110
stage23/menu.c
View File

@ -13,6 +13,12 @@
#include <mm/pmm.h>
#include <drivers/vbe.h>
#include <console.h>
#include <protos/stivale.h>
#include <protos/stivale2.h>
#include <protos/linux.h>
#include <protos/chainload.h>
#include <protos/multiboot1.h>
#include <protos/multiboot2.h>
static char *menu_branding = NULL;
static char *menu_branding_colour = NULL;
@ -518,7 +524,47 @@ static size_t print_tree(const char *shift, size_t level, size_t base_index, siz
return max_entries;
}
char *menu(char **cmdline, bool disable_timeout) {
#if defined (__x86_64__)
__attribute__((used))
static uintptr_t stack_at_first_entry = 0;
#endif
__attribute__((noreturn, naked))
void menu(__attribute__((unused)) bool timeout_enabled) {
#if defined (__i386__)
asm volatile (
"call 1f\n\t"
"1:\n\t"
"pop %eax\n\t"
"add $(2f - 1b), %eax\n\t"
"cmpl $0, (%eax)\n\t"
"jne 1f\n\t"
"mov %esp, (%eax)\n\t"
"jmp _menu\n\t"
"1:\n\t"
"mov 4(%esp), %edi\n\t"
"mov (%eax), %esp\n\t"
"push %edi\n\t"
"call _menu\n\t"
"2:\n\t"
".long 0"
);
#elif defined (__x86_64__)
asm volatile (
"xor %eax, %eax\n\t"
"cmp %rax, stack_at_first_entry(%rip)\n\t"
"jne 1f\n\t"
"mov %rsp, stack_at_first_entry(%rip)\n\t"
"jmp _menu\n\t"
"1:\n\t"
"mov stack_at_first_entry(%rip), %rsp\n\t"
"jmp _menu"
);
#endif
}
__attribute__((noreturn, used))
static void _menu(bool timeout_enabled) {
menu_branding = config_get_value(NULL, 0, "MENU_BRANDING");
if (menu_branding == NULL)
menu_branding = "Limine " LIMINE_VERSION;
@ -549,7 +595,7 @@ char *menu(char **cmdline, bool disable_timeout) {
timeout = strtoui(timeout_config, NULL, 10);
}
if (disable_timeout) {
if (!timeout_enabled) {
skip_timeout = true;
}
@ -703,6 +749,8 @@ refresh:
term_double_buffer_flush();
char *cmdline = NULL;
for (;;) {
c = getchar();
timeout_aborted:
@ -724,12 +772,12 @@ timeout_aborted:
selected_menu_entry->expanded = !selected_menu_entry->expanded;
goto refresh;
}
*cmdline = config_get_value(selected_menu_entry->body, 0, "KERNEL_CMDLINE");
if (!*cmdline) {
*cmdline = config_get_value(selected_menu_entry->body, 0, "CMDLINE");
cmdline = config_get_value(selected_menu_entry->body, 0, "KERNEL_CMDLINE");
if (!cmdline) {
cmdline = config_get_value(selected_menu_entry->body, 0, "CMDLINE");
}
if (!*cmdline) {
*cmdline = "";
if (!cmdline) {
cmdline = "";
}
if (term_backend == NOT_READY) {
#if bios == 1
@ -740,7 +788,7 @@ timeout_aborted:
} else {
reset_term();
}
return selected_menu_entry->body;
goto post_menu;
case 'e': {
if (editor_enabled) {
if (selected_menu_entry->sub != NULL)
@ -761,4 +809,50 @@ timeout_aborted:
}
}
}
post_menu:
char *config = selected_menu_entry->body;
char *proto = config_get_value(config, 0, "PROTOCOL");
if (proto == NULL) {
printv("PROTOCOL not specified, using autodetection...\n");
autodetect:
stivale2_load(config, cmdline);
stivale_load(config, cmdline);
multiboot2_load(config, cmdline);
multiboot1_load(config, cmdline);
linux_load(config, cmdline);
panic("Kernel protocol autodetection failed");
}
bool ret = true;
if (!strcmp(proto, "stivale1") || !strcmp(proto, "stivale")) {
ret = stivale_load(config, cmdline);
} else if (!strcmp(proto, "stivale2")) {
ret = stivale2_load(config, cmdline);
} else if (!strcmp(proto, "linux")) {
ret = linux_load(config, cmdline);
} else if (!strcmp(proto, "multiboot1") || !strcmp(proto, "multiboot")) {
ret = multiboot1_load(config, cmdline);
} else if (!strcmp(proto, "multiboot2")) {
ret = multiboot2_load(config, cmdline);
} else if (!strcmp(proto, "chainload")) {
chainload(config);
}
if (ret) {
print("WARNING: Unsupported protocol specified: %s.\n", proto);
} else {
print("WARNING: Incorrect protocol specified for kernel.\n");
}
print(" Press A to attempt autodetection or any other key to return to menu.\n");
c = getchar();
if (c == 'a' || c == 'A') {
goto autodetect;
} else {
menu(false);
}
}

3
stage23/menu.h
View File

@ -3,6 +3,7 @@
#include <stdbool.h>
char *menu(char **cmdline_ret, bool disable_timeout);
__attribute__((noreturn))
void menu(bool timeout_enabled);
#endif