Re: [kvm-unit-tests PATCH 0/5] s390x: Allocation and hosting environment detection fixes

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On 1/14/22 12:19, Claudio Imbrenda wrote:
On Fri, 14 Jan 2022 10:02:40 +0000
Janosch Frank <frankja@xxxxxxxxxxxxx> wrote:

I took some time before Christmas to write a test runner for lpar
which automatically runs all tests and sends me the logs. It's based
on the zhmc library to control starting and stopping of the lpar and
works by having a menu entry for each kvm unit test.

This revealed a number of test fails when the tests are run under lpar
as there are a few differences:
    * lpars most often have a very high memory amount (upwards of 8GB)
      compared to our qemu env (256MB)
    * lpar supports diag308 subcode 2
    * lpar does not provide virtio devices

The higher memory amount leads to allocations crossing the 2GB or 4GB
border which made sclp and sigp calls fail that expect 31/32 bit
addresses.


the series looks good to me; if you send me a fixed patch 3, I'll queue
this together with the other ones

Well, since Pierre originally came up with a large part of the code for patch 1 I'll wait with a new version until we picked his fixed patch so I can rebase on it.

But you can already pick the allocation patches if you want.


Janosch Frank (5):
   lib: s390x: vm: Add kvm and lpar vm queries
   s390x: css: Skip if we're not run by qemu
   s390x: diag308: Only test subcode 2 under QEMU
   s390x: smp: Allocate memory in DMA31 space
   s390x: firq: Fix sclp buffer allocation

  lib/s390x/vm.c  | 39 +++++++++++++++++++++++++++++++++++++++
  lib/s390x/vm.h  | 23 +++++++++++++++++++++++
  s390x/css.c     | 10 +++++++++-
  s390x/diag308.c | 15 ++++++++++++++-
  s390x/firq.c    |  2 +-
  s390x/smp.c     |  4 ++--
  s390x/stsi.c    | 21 +--------------------
  7 files changed, 89 insertions(+), 25 deletions(-)






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