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| author | Matthew Rosato <mjrosato@linux.ibm.com> | 2019-09-26 10:10:36 -0400 |
|---|---|---|
| committer | Christian Borntraeger <borntraeger@de.ibm.com> | 2019-09-30 13:51:49 +0200 |
| commit | 7df1dac5f1c85312474df9cb3a8fcae72303da62 (patch) | |
| tree | 06dcf6ea86a3087b95c6113569261499524dcb5f /hw/core/qdev-properties-system.c | |
| parent | ecd6663d95c94e1f1b736eab4254c2debd94edc1 (diff) | |
| download | focaccia-qemu-7df1dac5f1c85312474df9cb3a8fcae72303da62.tar.gz focaccia-qemu-7df1dac5f1c85312474df9cb3a8fcae72303da62.zip | |
s390: PCI: fix IOMMU region init
The fix in dbe9cf606c shrinks the IOMMU memory region to a size
that seems reasonable on the surface, however is actually too
small as it is based against a 0-mapped address space. This
causes breakage with small guests as they can overrun the IOMMU window.
Let's go back to the prior method of initializing iommu for now.
Fixes: dbe9cf606c ("s390x/pci: Set the iommu region size mpcifc request")
Cc: qemu-stable@nongnu.org
Reviewed-by: Pierre Morel <pmorel@linux.ibm.com>
Reported-by: Boris Fiuczynski <fiuczy@linux.ibm.com>
Tested-by: Boris Fiuczynski <fiuczy@linux.ibm.com>
Reported-by: Stefan Zimmerman <stzi@linux.ibm.com>
Signed-off-by: Matthew Rosato <mjrosato@linux.ibm.com>
Message-Id: <1569507036-15314-1-git-send-email-mjrosato@linux.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Diffstat (limited to 'hw/core/qdev-properties-system.c')
0 files changed, 0 insertions, 0 deletions