[PATCH 0/2] s390x: pv: Fixes and improvements

Janosch Frank
2020-09-03T14:14:16Z

Using the destroy call instead of the export on a VM shutdown, we can
clear out a protected guest much faster.

The 3f exception can in fact be triggered by userspace and therefore
should not panic the whole system, but send a SIGSEGV to the culprit
process.

Janosch Frank (2):
s390x: uv: Add destroy page call
s390x: Add 3f program exception handler

arch/s390/include/asm/uv.h | 7 +++++++
arch/s390/kernel/pgm_check.S | 2 +-
arch/s390/kernel/uv.c | 21 +++++++++++++++++++++
arch/s390/mm/fault.c | 23 +++++++++++++++++++++++
arch/s390/mm/gmap.c | 2 +-
5 files changed, 53 insertions(+), 2 deletions(-)

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2.25.1