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author | Thomas Zimmermann <tzimmermann@suse.de> | 2020-08-12 19:17:18 +0200 |
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committer | Thomas Zimmermann <tzimmermann@suse.de> | 2020-08-12 20:42:08 +0200 |
commit | 534b1f9071d95325044c21d47d9f63a45cdf425e (patch) | |
tree | 5c2aa3cd65bfb6b9e73d9ad22c021d800380f0f6 /arch/x86/boot/compressed/head_64.S | |
parent | drm/radeon: drop superflous AGP handling (diff) | |
parent | drm/ttm: revert "drm/ttm: make TT creation purely optional v3" (diff) | |
download | linux-dev-534b1f9071d95325044c21d47d9f63a45cdf425e.tar.xz linux-dev-534b1f9071d95325044c21d47d9f63a45cdf425e.zip |
Merge drm/drm-next into drm-misc-next
Backmerging drm-next into drm-misc-next for nouveau and panel updates.
Resolves a conflict between ttm and nouveau, where struct ttm_mem_res got
renamed to struct ttm_resource.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Diffstat (limited to 'arch/x86/boot/compressed/head_64.S')
-rw-r--r-- | arch/x86/boot/compressed/head_64.S | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/arch/x86/boot/compressed/head_64.S b/arch/x86/boot/compressed/head_64.S index e821a7d7d5c4..97d37f0a34f5 100644 --- a/arch/x86/boot/compressed/head_64.S +++ b/arch/x86/boot/compressed/head_64.S @@ -213,7 +213,6 @@ SYM_FUNC_START(startup_32) * We place all of the values on our mini stack so lret can * used to perform that far jump. */ - pushl $__KERNEL_CS leal startup_64(%ebp), %eax #ifdef CONFIG_EFI_MIXED movl efi32_boot_args(%ebp), %edi @@ -224,11 +223,20 @@ SYM_FUNC_START(startup_32) movl efi32_boot_args+8(%ebp), %edx // saved bootparams pointer cmpl $0, %edx jnz 1f + /* + * efi_pe_entry uses MS calling convention, which requires 32 bytes of + * shadow space on the stack even if all arguments are passed in + * registers. We also need an additional 8 bytes for the space that + * would be occupied by the return address, and this also results in + * the correct stack alignment for entry. + */ + subl $40, %esp leal efi_pe_entry(%ebp), %eax movl %edi, %ecx // MS calling convention movl %esi, %edx 1: #endif + pushl $__KERNEL_CS pushl %eax /* Enter paged protected Mode, activating Long Mode */ @@ -784,6 +792,7 @@ SYM_DATA_LOCAL(boot_heap, .fill BOOT_HEAP_SIZE, 1, 0) SYM_DATA_START_LOCAL(boot_stack) .fill BOOT_STACK_SIZE, 1, 0 + .balign 16 SYM_DATA_END_LABEL(boot_stack, SYM_L_LOCAL, boot_stack_end) /* |