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s390x/pci: use a reserved ID for the default PCI group

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The current default PCI group being used can technically collide with a
real group ID passed from a hostdev.  Let's instead use a group ID that
comes from a special pool (0xF0-0xFF) that is architected to be reserved
for simulated devices.

Fixes: 28dc86a072 ("s390x/pci: use a PCI Group structure")
Signed-off-by: Matthew Rosato <mjrosato@linux.ibm.com>
Reviewed-by: Eric Farman <farman@linux.ibm.com>
Reviewed-by: Pierre Morel <pmorel@linux.ibm.com>
Message-Id: <20211203142706.427279-2-mjrosato@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
This commit is contained in:
Matthew Rosato 2021-12-03 09:27:03 -05:00 committed by Thomas Huth
parent 2c092950a4
commit b2892a2b9d
1 changed files with 1 additions and 1 deletions
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2
include/hw/s390x/s390-pci-bus.h
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@ -313,7 +313,7 @@ typedef struct ZpciFmb {
} ZpciFmb;
QEMU_BUILD_BUG_MSG(offsetof(ZpciFmb, fmt0) != 48, "padding in ZpciFmb");
#define ZPCI_DEFAULT_FN_GRP 0x20
#define ZPCI_DEFAULT_FN_GRP 0xFF
typedef struct S390PCIGroup {
ClpRspQueryPciGrp zpci_group;
int id;