diff options
Diffstat (limited to 'src/arch/x86/exit_car.S')
| -rw-r--r-- | src/arch/x86/exit_car.S | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/arch/x86/exit_car.S b/src/arch/x86/exit_car.S index 679e335eb3..8c2878481b 100644 --- a/src/arch/x86/exit_car.S +++ b/src/arch/x86/exit_car.S @@ -31,6 +31,14 @@ _start: /* Migrate GDT to this text segment */ call gdt_init +#ifdef __x86_64__ + mov %rdi, _cbmem_top_ptr +#else + /* The return argument is at 0(%esp), the calling argument at 4(%esp) */ + movl 4(%esp), %eax + movl %eax, _cbmem_top_ptr +#endif + /* chipset_teardown_car() is expected to disable cache-as-ram. */ call chipset_teardown_car |