James Morse 7685bb0efb arm64: hyp-stub: Forbid kprobing of the hyp-stub
commit 8fac5cbdfe0f01254d9d265c6aa1a95f94f58595 upstream.

The hyp-stub is loaded by the kernel's early startup code at EL2
during boot, before KVM takes ownership later. The hyp-stub's
text is part of the regular kernel text, meaning it can be kprobed.

A breakpoint in the hyp-stub causes the CPU to spin in el2_sync_invalid.

Add it to the __hyp_text.

Signed-off-by: James Morse <james.morse@arm.com>
Cc: stable@vger.kernel.org
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-02-06 19:43:07 +01:00
..
2016-09-24 10:07:43 +02:00
2015-11-11 09:16:10 -08:00