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| author | Shmulik Ladkani <shmulik.ladkani@ravellosystems.com> | 2015-12-13 10:08:29 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2015-12-17 15:24:34 +0100 |
| commit | 952970ba5651e8f6d1fec7de0366c63a79cadfdb (patch) | |
| tree | 030623df20a47bb3715c679748f73254fa3a0f3b | |
| parent | 836fc48cbc83fba07a43a444db072fe41dacf9fd (diff) | |
| download | qemu-952970ba5651e8f6d1fec7de0366c63a79cadfdb.tar.gz qemu-952970ba5651e8f6d1fec7de0366c63a79cadfdb.tar.bz2 qemu-952970ba5651e8f6d1fec7de0366c63a79cadfdb.zip | |
vmw_pvscsi: Introduce 'x-old-pci-configuration' backword compatability property
Following the previous patches, which introduced various changes in
pvscsi's pci configuration space (device subsystem id and revision, msi
offset), this patch introduces a boolean property
'x-old-pci-configuration' to pvscsi.
Its default value is false, exposing the above changes in the pci config
space.
Setting 'x-old-pci-configuration' to 'on' preserves the old behavior,
which allows migration to older versions.
Signed-off-by: Shmulik Ladkani <shmulik.ladkani@ravellosystems.com>
Message-Id: <1449994112-7054-4-git-send-email-shmulik.ladkani@ravellosystems.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
| -rw-r--r-- | hw/scsi/vmw_pvscsi.c | 2 | ||||
| -rw-r--r-- | include/hw/compat.h | 4 |
2 files changed, 6 insertions, 0 deletions
diff --git a/hw/scsi/vmw_pvscsi.c b/hw/scsi/vmw_pvscsi.c index be95cff5e7..e785b8b6ec 100644 --- a/hw/scsi/vmw_pvscsi.c +++ b/hw/scsi/vmw_pvscsi.c @@ -1194,6 +1194,8 @@ static const VMStateDescription vmstate_pvscsi = { static Property pvscsi_properties[] = { DEFINE_PROP_UINT8("use_msg", PVSCSIState, use_msg, 1), + DEFINE_PROP_BIT("x-old-pci-configuration", PVSCSIState, compat_flags, + PVSCSI_COMPAT_OLD_PCI_CONFIGURATION_BIT, false), DEFINE_PROP_END_OF_LIST(), }; diff --git a/include/hw/compat.h b/include/hw/compat.h index d0b1c4f1ef..66e4affa98 100644 --- a/include/hw/compat.h +++ b/include/hw/compat.h @@ -7,6 +7,10 @@ .property = "scsi",\ .value = "true",\ },{\ + .driver = "pvscsi",\ + .property = "x-old-pci-configuration",\ + .value = "on",\ + },{\ .driver = "e1000",\ .property = "extra_mac_registers",\ .value = "off",\ |