The SIE support allows us to run guests and test the hypervisor's (V)SIE implementation. However it requires that the guest instructions are binary which limits the complexity of the guest code. The snippet support provides a way to write guest code as ASM or C and simply memcpy it into guest memory. Some of the KVM-unit-test library can be re-used which further speeds up guest code development. The included mvpg-sie test helped us to deliver the KVM mvpg fixes which Claudio posted a short while ago. In the future I'll post Secure Execution snippet support patches which was my initial goal with this series anyway. I heard you liked tests so I put tests inside tests so you can test while you test. Janosch Frank (2): s390x: Add guest snippet support s390x: mvpg: Add SIE mvpg test .gitignore | 2 + s390x/Makefile | 29 ++++++- s390x/mvpg-sie.c | 139 ++++++++++++++++++++++++++++++++ s390x/snippets/c/cstart.S | 13 +++ s390x/snippets/c/flat.lds | 51 ++++++++++++ s390x/snippets/c/mvpg-snippet.c | 33 ++++++++ s390x/unittests.cfg | 3 + 7 files changed, 267 insertions(+), 3 deletions(-) create mode 100644 s390x/mvpg-sie.c create mode 100644 s390x/snippets/c/cstart.S create mode 100644 s390x/snippets/c/flat.lds create mode 100644 s390x/snippets/c/mvpg-snippet.c -- 2.30.2
