Right now, all SIE tests in kvm-unit-tests (i.e. where kvm-unit-test is the hypervisor) run using MSO/MSL. This is convenient, because it's simple. But it also comes with disadvantages, for example some features are unavailabe with MSO/MSL. This series adds support for running guests without MSO/MSL with dedicated guest page tables for the GPA->HPA translation. Since SIE implicitly uses the primary space mode for the guest, the host can't run in the primary space mode, too. To avoid moving all tests to the home space mode, only switch to home space mode when it is actually needed. This series also comes with various bugfixes that were caught while develoing this. Nico Boehr (4): s390x: sie: switch to home space mode before entering SIE s390x: lib: don't forward PSW when handling exception in SIE s390x: lib: sie: don't reenter SIE on pgm int s390x: add a test for SIE without MSO/MSL lib/s390x/asm/arch_def.h | 2 + lib/s390x/interrupt.c | 7 +++ lib/s390x/sie.c | 36 ++++++++++- lib/s390x/sie.h | 2 + s390x/Makefile | 2 + s390x/sie-dat.c | 121 +++++++++++++++++++++++++++++++++++++ s390x/snippets/c/sie-dat.c | 58 ++++++++++++++++++ s390x/unittests.cfg | 3 + 8 files changed, 230 insertions(+), 1 deletion(-) create mode 100644 s390x/sie-dat.c create mode 100644 s390x/snippets/c/sie-dat.c -- 2.39.1
