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More bullet-proof UEFI SMP

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bzt 2021-01-21 21:37:00 +01:00
parent 2255fb48ad
commit cb57f1c368
4 changed files with 4 additions and 2 deletions
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dist/bootboot.efi vendored
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dist/bootboot.rom vendored
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mkbootimg/data.c
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x86_64-efi/bootboot.c
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@ -380,7 +380,8 @@ EFI_SIMPLE_FILE_SYSTEM_PROTOCOL *Volume;
EFI_FILE_HANDLE RootDir; EFI_FILE_HANDLE RootDir;
EFI_FILE_PROTOCOL *Root; EFI_FILE_PROTOCOL *Root;
SIMPLE_INPUT_INTERFACE *CI; SIMPLE_INPUT_INTERFACE *CI;
unsigned char *kne, bsp_done=0, nosmp=0; unsigned char *kne, nosmp=0;
volatile char bsp_done=0;
// default environment variables. M$ states that 1024x768 must be supported // default environment variables. M$ states that 1024x768 must be supported
int reqwidth = 1024, reqheight = 768; int reqwidth = 1024, reqheight = 768;
@ -2124,6 +2125,7 @@ get_memory_map:
// release AP spinlock // release AP spinlock
bsp_done = 1; bsp_done = 1;
__asm__ __volatile__ ("pause" : : : "memory"); // memory barrier
bootboot_startcore((VOID*)bsp_num); bootboot_startcore((VOID*)bsp_num);
} }
return report(status,L"Initrd not found"); return report(status,L"Initrd not found");