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9d8d0294e7
On x86_64, all returns to usermode go through
prepare_exit_to_usermode(), with the sole exception of do_nmi().
This even includes machine checks -- this was added several years
ago to support MCE recovery. Update the documentation.
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@suse.de>
Cc: Frederic Weisbecker <frederic@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jon Masters <jcm@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Fixes:
|
||
|---|---|---|
| .. | ||
| i386 | ||
| x86_64 | ||
| amd-memory-encryption.rst | ||
| boot.rst | ||
| conf.py | ||
| earlyprintk.rst | ||
| entry_64.rst | ||
| exception-tables.rst | ||
| index.rst | ||
| intel_mpx.rst | ||
| kernel-stacks.rst | ||
| mds.rst | ||
| microcode.rst | ||
| mtrr.rst | ||
| orc-unwinder.rst | ||
| pat.rst | ||
| protection-keys.rst | ||
| pti.rst | ||
| resctrl_ui.rst | ||
| tlb.rst | ||
| topology.rst | ||
| usb-legacy-support.rst | ||
| zero-page.rst | ||