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linux-next/arch/x86
Andy Lutomirski b0dc553cfc x86/fpu: Make the EFI FPU calling convention explicit
EFI uses kernel_fpu_begin() to conform to the UEFI calling convention.
This specifically requires initializing FCW (FPU Control Word), whereas
no sane 64-bit kernel code should use legacy 387 operations that
reference FCW.

This should allow to safely change the default semantics of
kernel_fpu_begin() to stop initializing FCW on 64-bit kernels.

 [ bp: Massage commit message a little. ]

Signed-off-by: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/25d392fff64680e0f4bb8cf0b1003314dc29eafe.1611205691.git.luto@kernel.org
2021-01-29 12:22:15 +01:00
..
boot EFI updates collected by Ard Biesheuvel: 2020-12-24 12:40:07 -08:00
configs * A defconfig fix, from Daniel Díaz. 2020-09-20 15:06:43 -07:00
crypto Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2020-12-14 12:18:19 -08:00
entry x86/entry: Fix noinstr fail 2021-01-12 21:10:58 +01:00
events Perf updates: 2020-12-14 17:34:12 -08:00
hyperv x86/hyperv: Initialize clockevents after LAPIC is initialized 2021-01-17 15:20:50 +00:00
ia32 x86/ia32_signal: Propagate __user annotation properly 2020-12-11 19:44:31 +01:00
include x86/fpu: Make the EFI FPU calling convention explicit 2021-01-29 12:22:15 +01:00
kernel Merge branch 'akpm' (patches from Andrew) 2021-01-24 12:16:34 -08:00
kvm x86: 2021-01-08 15:06:02 -08:00
lib x86/mmx: Use KFPU_387 for MMX string operations 2021-01-21 13:39:36 +01:00
math-emu treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
mm x86/mm: Fix leak of pmd ptlock 2021-01-05 11:40:23 +01:00
net bpf: x64: Do not emit sub/add 0, %rsp when !stack_depth 2020-09-29 16:47:39 -07:00
oprofile x86/oprofile: Avoid TIF_IA32 when checking 64bit mode 2020-10-26 13:46:46 +01:00
pci ARM: SoC drivers for v5.11 2020-12-16 16:38:41 -08:00
platform x86/fpu: Make the EFI FPU calling convention explicit 2021-01-29 12:22:15 +01:00
power Kbuild updates for v5.9 2020-08-09 14:10:26 -07:00
purgatory crypto: sha - split sha.h into sha1.h and sha2.h 2020-11-20 14:45:33 +11:00
ras
realmode x86/head/64: Don't call verify_cpu() on starting APs 2020-09-09 11:33:20 +02:00
tools x86/insn: Make inat-tables.c suitable for pre-decompression code 2020-09-07 19:45:24 +02:00
um arch/um: partially revert the conversion to __section() macro 2020-10-26 15:39:37 -07:00
video
xen xen: branch for v5.11-rc5 2021-01-20 11:46:38 -08:00
.gitignore
Kbuild
Kconfig fanotify: Fix sys_fanotify_mark() on native x86-32 2020-12-28 11:58:59 +01:00
Kconfig.assembler
Kconfig.cpu
Kconfig.debug x86, libnvdimm/test: Remove COPY_MC_TEST 2020-10-26 18:08:35 +01:00
Makefile - Fix the vmlinux size check on 64-bit along with adding useful clarifications on the topic 2020-12-14 13:54:50 -08:00
Makefile_32.cpu
Makefile.um