Thomas Gleixner 04dcbdb805 x86/speculation/mds: Clear CPU buffers on exit to user ... Add a static key which controls the invocation of the CPU buffer clear mechanism on exit to user space and add the call into prepare_exit_to_usermode() and do_nmi() right before actually returning. Add documentation which kernel to user space transition this covers and explain why some corner cases are not mitigated. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Borislav Petkov <bp@suse.de> Reviewed-by: Frederic Weisbecker <frederic@kernel.org> Reviewed-by: Jon Masters <jcm@redhat.com> Tested-by: Jon Masters <jcm@redhat.com>		2019-03-06 21:52:13 +01:00
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syscalls	x86: Wire up restartable sequence system call	2018-06-06 11:58:32 +02:00
vdso	Merge branch 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2018-12-26 17:03:51 -08:00
vsyscall	Remove 'type' argument from access_ok() function	2019-01-03 18:57:57 -08:00
calling.h	jump_label: move 'asm goto' support test to Kconfig	2019-01-06 09:46:51 +09:00
common.c	x86/speculation/mds: Clear CPU buffers on exit to user	2019-03-06 21:52:13 +01:00
entry_32.S	New gcc plugin: stackleak	2018-11-01 11:46:27 -07:00
entry_64_compat.S	x86/entry/64/compat: Fix stack switching for XEN PV	2019-01-18 00:39:33 +01:00
entry_64.S	kprobes/x86: Blacklist non-attachable interrupt functions	2018-12-06 16:52:03 +01:00
Makefile	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
syscall_32.c	syscalls/x86: Unconditionally enable 'struct pt_regs' based syscalls on x86_64	2018-04-05 16:59:38 +02:00
syscall_64.c	syscalls/x86: Unconditionally enable 'struct pt_regs' based syscalls on x86_64	2018-04-05 16:59:38 +02:00
thunk_32.S	x86: move exports to actual definitions	2016-08-07 23:47:15 -04:00
thunk_64.S	x86: move exports to actual definitions	2016-08-07 23:47:15 -04:00