From: Janosch Frank <frankja@linux.ibm.com>
To: kvm@vger.kernel.org
Cc: linux-s390@vger.kernel.org, imbrenda@linux.ibm.com,
david@redhat.com, thuth@redhat.com, cohuck@redhat.com
Subject: [kvm-unit-tests RFC 0/2] s390x: Add snippet support
Date: Thu, 20 May 2021 09:47:28 +0000 [thread overview]
Message-ID: <20210520094730.55759-1-frankja@linux.ibm.com> (raw)
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
next reply other threads:[~2021-05-20 9:49 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-20 9:47 Janosch Frank [this message]
2021-05-20 9:47 ` [kvm-unit-tests RFC 1/2] s390x: Add guest snippet support Janosch Frank
2021-05-25 16:44 ` Claudio Imbrenda
2021-05-26 10:12 ` Janosch Frank
2021-06-21 10:10 ` Thomas Huth
2021-06-21 12:19 ` Janosch Frank
2021-06-21 12:32 ` Thomas Huth
2021-06-21 12:39 ` Janosch Frank
2021-06-21 13:28 ` Thomas Huth
2021-06-21 14:42 ` Janosch Frank
2021-06-21 14:59 ` Thomas Huth
2021-05-20 9:47 ` [kvm-unit-tests RFC 2/2] s390x: mvpg: Add SIE mvpg test Janosch Frank
2021-05-25 17:37 ` Claudio Imbrenda
2021-05-26 10:17 ` Janosch Frank
2021-05-27 14:35 ` Janosch Frank
2021-06-21 10:23 ` Thomas Huth
2021-06-21 12:41 ` Janosch Frank
2021-05-20 13:36 ` [kvm-unit-tests RFC 0/2] s390x: Add snippet support David Hildenbrand
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