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Björn Töpel 116eb788f5 bpf, x86: Align dispatcher branch targets to 16B 
>From Intel 64 and IA-32 Architectures Optimization Reference Manual,
3.4.1.4 Code Alignment, Assembly/Compiler Coding Rule 11: All branch
targets should be 16-byte aligned.

This commits aligns branch targets according to the Intel manual.

The nops used to align branch targets make the dispatcher larger, and
therefore the number of supported dispatch points/programs are
descreased from 64 to 48.

Signed-off-by: Björn Töpel <bjorn.topel@intel.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20191213175112.30208-7-bjorn.topel@gmail.com
2019-12-13 13:09:32 -08:00
..
alpha alpha: use pgtable-nopud instead of 4level-fixup 2019-12-04 19:44:14 -08:00
arc ARC updates for 5.5-rc1 2019-12-04 19:06:18 -08:00
arm ARM: net: bpf: Improve prologue code sequence 2019-12-11 14:34:26 +01:00
arm64 bpf, x86, arm64: Enable jit by default when not built as always-on 2019-12-11 16:16:01 -08:00
c6x c6x: use pgtable-nopud instead of 4level-fixup 2019-12-04 19:44:15 -08:00
csky dma-mapping updates for 5.5-rc1 2019-11-28 11:16:43 -08:00
h8300
hexagon Kbuild updates for v5.5 2019-12-02 17:35:04 -08:00
ia64 drm msm + fixes for 5.5-rc1 2019-12-06 10:28:09 -08:00
m68k Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu 2019-12-05 12:20:42 -08:00
microblaze microblaze: use pgtable-nopmd instead of 4level-fixup 2019-12-04 19:44:15 -08:00
mips arch: sembuf.h: make uapi asm/sembuf.h self-contained 2019-12-04 19:44:14 -08:00
nds32 nds32: use pgtable-nopmd instead of 4level-fixup 2019-12-04 19:44:15 -08:00
nios2 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2019-12-01 13:26:18 -08:00
openrisc OpenRISC updates for 5.5 2019-12-02 17:18:43 -08:00
parisc parisc/hugetlb: use pgtable-nopXd instead of 4level-fixup 2019-12-04 19:44:15 -08:00
powerpc powerpc updates for 5.5 #2 2019-12-06 13:36:31 -08:00
riscv Second set of RISC-V updates for v5.5-rc1 2019-12-04 11:07:00 -08:00
s390 powerpc updates for 5.5 #2 2019-12-06 13:36:31 -08:00
sh Additional power management updates for 5.5-rc1 2019-12-04 10:48:09 -08:00
sparc sparc32: use pgtable-nopud instead of 4level-fixup 2019-12-04 19:44:15 -08:00
um um: add support for folded p4d page tables 2019-12-04 19:44:15 -08:00
unicore32 generic ioremap support 2019-11-28 10:57:12 -08:00
x86 bpf, x86: Align dispatcher branch targets to 16B 2019-12-13 13:09:32 -08:00
xtensa arch: sembuf.h: make uapi asm/sembuf.h self-contained 2019-12-04 19:44:14 -08:00
.gitignore
Kconfig arch/Kconfig: fix indentation 2019-12-04 19:44:12 -08:00