diff options
Diffstat (limited to 'arch/x86/boot')
| -rw-r--r-- | arch/x86/boot/compressed/head_64.S | 8 | ||||
| -rw-r--r-- | arch/x86/boot/compressed/ident_map_64.c | 10 |
2 files changed, 4 insertions, 14 deletions
diff --git a/arch/x86/boot/compressed/head_64.S b/arch/x86/boot/compressed/head_64.S index 017de6cc87dc..e94874f4bbc1 100644 --- a/arch/x86/boot/compressed/head_64.S +++ b/arch/x86/boot/compressed/head_64.S @@ -241,12 +241,12 @@ SYM_FUNC_START(startup_32) leal rva(startup_64)(%ebp), %eax #ifdef CONFIG_EFI_MIXED movl rva(efi32_boot_args)(%ebp), %edi - cmp $0, %edi + testl %edi, %edi jz 1f leal rva(efi64_stub_entry)(%ebp), %eax movl rva(efi32_boot_args+4)(%ebp), %esi movl rva(efi32_boot_args+8)(%ebp), %edx // saved bootparams pointer - cmpl $0, %edx + testl %edx, %edx jnz 1f /* * efi_pe_entry uses MS calling convention, which requires 32 bytes of @@ -592,7 +592,7 @@ SYM_CODE_START(trampoline_32bit_src) movl %eax, %cr0 /* Check what paging mode we want to be in after the trampoline */ - cmpl $0, %edx + testl %edx, %edx jz 1f /* We want 5-level paging: don't touch CR3 if it already points to 5-level page tables */ @@ -622,7 +622,7 @@ SYM_CODE_START(trampoline_32bit_src) /* Enable PAE and LA57 (if required) paging modes */ movl $X86_CR4_PAE, %eax - cmpl $0, %edx + testl %edx, %edx jz 1f orl $X86_CR4_LA57, %eax 1: diff --git a/arch/x86/boot/compressed/ident_map_64.c b/arch/x86/boot/compressed/ident_map_64.c index 39b2eded7bc2..f7213d0943b8 100644 --- a/arch/x86/boot/compressed/ident_map_64.c +++ b/arch/x86/boot/compressed/ident_map_64.c @@ -168,16 +168,6 @@ void initialize_identity_maps(void *rmode) write_cr3(top_level_pgt); } -/* - * This switches the page tables to the new level4 that has been built - * via calls to add_identity_map() above. If booted via startup_32(), - * this is effectively a no-op. - */ -void finalize_identity_maps(void) -{ - write_cr3(top_level_pgt); -} - static pte_t *split_large_pmd(struct x86_mapping_info *info, pmd_t *pmdp, unsigned long __address) { |