From: Ard Biesheuvel <ardb@kernel.org>
To: linux-efi@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, Ard Biesheuvel <ardb@kernel.org>,
Evgeniy Baskov <baskov@ispras.ru>, Borislav Petkov <bp@alien8.de>,
Andy Lutomirski <luto@kernel.org>,
Dave Hansen <dave.hansen@linux.intel.com>,
Ingo Molnar <mingo@redhat.com>,
Peter Zijlstra <peterz@infradead.org>,
Thomas Gleixner <tglx@linutronix.de>,
Alexey Khoroshilov <khoroshilov@ispras.ru>,
Peter Jones <pjones@redhat.com>,
Gerd Hoffmann <kraxel@redhat.com>, Dave Young <dyoung@redhat.com>,
Mario Limonciello <mario.limonciello@amd.com>,
Kees Cook <keescook@chromium.org>,
Tom Lendacky <thomas.lendacky@amd.com>,
"Kirill A . Shutemov" <kirill.shutemov@linux.intel.com>,
Linus Torvalds <torvalds@linux-foundation.org>,
Joerg Roedel <jroedel@suse.de>
Subject: [PATCH v4 15/21] decompress: Use 8 byte alignment
Date: Fri, 2 Jun 2023 12:13:07 +0200 [thread overview]
Message-ID: <20230602101313.3557775-16-ardb@kernel.org> (raw)
In-Reply-To: <20230602101313.3557775-1-ardb@kernel.org>
The ZSTD decompressor requires malloc() allocations to be 8 byte
aligned, so ensure that this the case.
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
---
include/linux/decompress/mm.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/linux/decompress/mm.h b/include/linux/decompress/mm.h
index 9192986b1a731323..ac862422df158bef 100644
--- a/include/linux/decompress/mm.h
+++ b/include/linux/decompress/mm.h
@@ -48,7 +48,7 @@ MALLOC_VISIBLE void *malloc(int size)
if (!malloc_ptr)
malloc_ptr = free_mem_ptr;
- malloc_ptr = (malloc_ptr + 3) & ~3; /* Align */
+ malloc_ptr = (malloc_ptr + 7) & ~7; /* Align */
p = (void *)malloc_ptr;
malloc_ptr += size;
--
2.39.2
next prev parent reply other threads:[~2023-06-02 10:24 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-02 10:12 [PATCH v4 00/21] efi/x86: Avoid bare metal decompressor during EFI boot Ard Biesheuvel
2023-06-02 10:12 ` [PATCH v4 01/21] x86/efistub: Branch straight to kernel entry point from C code Ard Biesheuvel
2023-06-02 10:12 ` [PATCH v4 02/21] x86/efistub: Simplify and clean up handover entry code Ard Biesheuvel
2023-06-02 10:12 ` [PATCH v4 03/21] x86/decompressor: Avoid magic offsets for EFI handover entrypoint Ard Biesheuvel
2023-06-02 10:12 ` [PATCH v4 04/21] x86/efistub: Clear BSS in EFI handover protocol entrypoint Ard Biesheuvel
2023-06-02 10:12 ` [PATCH v4 05/21] x86/decompressor: Use proper sequence to take the address of the GOT Ard Biesheuvel
2023-06-02 10:12 ` [PATCH v4 06/21] x86/decompressor: Store boot_params pointer in callee save register Ard Biesheuvel
2023-06-02 10:12 ` [PATCH v4 07/21] x86/decompressor: Call trampoline as a normal function Ard Biesheuvel
2023-06-02 10:13 ` [PATCH v4 08/21] x86/decompressor: Use standard calling convention for trampoline Ard Biesheuvel
2023-06-02 10:13 ` [PATCH v4 09/21] x86/decompressor: Avoid the need for a stack in the 32-bit trampoline Ard Biesheuvel
2023-06-02 10:13 ` [PATCH v4 10/21] x86/decompressor: Call trampoline directly from C code Ard Biesheuvel
2023-06-02 10:13 ` [PATCH v4 11/21] x86/decompressor: Only call the trampoline when changing paging levels Ard Biesheuvel
2023-06-02 10:13 ` [PATCH v4 12/21] x86/decompressor: Merge trampoline cleanup with switching code Ard Biesheuvel
2023-06-02 10:13 ` [PATCH v4 13/21] x86/efistub: Perform 4/5 level paging switch from the stub Ard Biesheuvel
2023-06-02 10:13 ` [PATCH v4 14/21] x86/efistub: Prefer EFI memory attributes protocol over DXE services Ard Biesheuvel
2023-06-02 10:13 ` Ard Biesheuvel [this message]
2023-06-02 10:13 ` [PATCH v4 16/21] x86/decompressor: Move global symbol references to C code Ard Biesheuvel
2023-06-02 10:13 ` [PATCH v4 17/21] x86/decompressor: Factor out kernel decompression and relocation Ard Biesheuvel
2023-06-02 10:13 ` [PATCH v4 18/21] x86/head_64: Store boot_params pointer in callee-preserved register Ard Biesheuvel
2023-06-02 10:13 ` [PATCH v4 19/21] efi/libstub: Add limit argument to efi_random_alloc() Ard Biesheuvel
2023-06-02 10:13 ` [PATCH v4 20/21] x86/efistub: Perform SNP feature test while running in the firmware Ard Biesheuvel
2023-06-02 20:38 ` Tom Lendacky
2023-06-02 20:39 ` Tom Lendacky
2023-06-02 21:29 ` Ard Biesheuvel
2023-06-02 22:01 ` Tom Lendacky
2023-06-02 22:22 ` Ard Biesheuvel
2023-06-02 10:13 ` [PATCH v4 21/21] x86/efistub: Avoid legacy decompressor when doing EFI boot Ard Biesheuvel
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