linux/arch/x86/entry
Andy Lutomirski bf00745e77 x86/vsyscall: Remove CONFIG_LEGACY_VSYSCALL_EMULATE
CONFIG_LEGACY_VSYSCALL_EMULATE is, as far as I know, only needed for the
combined use of exotic and outdated debugging mechanisms with outdated
binaries. At this point, no one should be using it. Eventually, dynamic
switching of vsyscalls will be implemented, but this is much more
complicated to support in EMULATE mode than XONLY mode.

So let's force all the distros off of EMULATE mode. If anyone actually
needs it, they can set vsyscall=emulate, and the kernel can then get
away with refusing to support newer security models if that option is
set.

  [ bp: Remove "we"s. ]

Signed-off-by: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Kees Cook <keescook@chromium.org>
Acked-by: Florian Weimer <fweimer@redhat.com>
Link: https://lore.kernel.org/r/898932fe61db6a9d61bc2458fa2f6049f1ca9f5c.1652290558.git.luto@kernel.org
2022-05-11 20:39:31 +02:00
..
syscalls Kbuild updates for v5.18 2022-03-31 11:59:03 -07:00
vdso - Get rid of all the .fixup sections because this generates 2022-01-12 16:31:19 -08:00
vsyscall x86/vsyscall: Remove CONFIG_LEGACY_VSYSCALL_EMULATE 2022-05-11 20:39:31 +02:00
calling.h x86/entry: Split PUSH_AND_CLEAR_REGS into two submacros 2021-05-12 10:49:15 +02:00
common.c X86 entry code related updates: 2021-06-29 12:44:51 -07:00
entry_32.S Merge branch 'signal-for-v5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2022-01-17 05:49:30 +02:00
entry_64_compat.S x86/ibt,sev: Annotations 2022-03-15 10:32:41 +01:00
entry_64.S x86,objtool: Explicitly mark idtentry_body()s tail REACHABLE 2022-04-19 21:58:48 +02:00
Makefile x86/syscalls: Don't adjust CFLAGS for syscall tables 2021-05-25 16:59:23 +02:00
syscall_32.c x86/syscalls: Stop filling syscall arrays with *_sys_ni_syscall 2021-05-20 15:03:59 +02:00
syscall_64.c x86/syscalls: Stop filling syscall arrays with *_sys_ni_syscall 2021-05-20 15:03:59 +02:00
syscall_x32.c x86/syscalls: Stop filling syscall arrays with *_sys_ni_syscall 2021-05-20 15:03:59 +02:00
thunk_32.S x86: Prepare asm files for straight-line-speculation 2021-12-08 12:25:37 +01:00
thunk_64.S x86: Prepare asm files for straight-line-speculation 2021-12-08 12:25:37 +01:00