diff options
| -rw-r--r-- | arch/x86/boot/compressed/head_64.S | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/x86/boot/compressed/head_64.S b/arch/x86/boot/compressed/head_64.S index c56b30bd9c7b..27eb2a6786db 100644 --- a/arch/x86/boot/compressed/head_64.S +++ b/arch/x86/boot/compressed/head_64.S @@ -439,6 +439,16 @@ trampoline_return: cld popq %rsi + /* + * The GDT may get overwritten either during the copy we just did or + * during extract_kernel below. To avoid any issues, repoint the GDTR + * to the new copy of the GDT. + */ + leaq gdt64(%rbx), %rax + subq %rbp, 2(%rax) + addq %rbx, 2(%rax) + lgdt (%rax) + /* * Jump to the relocated address. */ |