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s390x: always provide pci support

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We tried to make pci support optional on s390x in the past;
unfortunately, we still require the s390 phb to be created
unconditionally due to backwards compatibility issues.

Instead of sinking more effort into this (including compat
handling for older machines etc.) for non-obvious gains, let's
just make CONFIG_PCI something that is always set on s390x.

Note that you can still fence off pci for the _guest_ if you
provide a cpu model without the zpci feature.

Message-Id: <20190211113255.3837-1-cohuck@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
This commit is contained in:
Cornelia Huck 2019-02-11 12:32:55 +01:00
parent 44699e1c94
commit 09ced81aac
6 changed files with 2 additions and 92 deletions
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1
target/s390x/gen-features.c
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@ -598,7 +598,6 @@ static uint16_t qemu_MAX[] = {
S390_FEAT_STFLE_53,
/* generates a dependency warning, leave it out for now */
S390_FEAT_MSA_EXT_5,
/* only with CONFIG_PCI */
S390_FEAT_ZPCI,
};