[libvirt] [PATCH 1/3] qemu: Re-reserve all PCI addresses on libvirtd restart

Daniel P. Berrange berrange at redhat.com
Mon Aug 16 16:18:10 UTC 2010


On Fri, Aug 13, 2010 at 05:26:45PM +0200, Jiri Denemark wrote:
> When reconnecting to existing VMs, we re-reserved only those PCI
> addresses which were explicitly mentioned in domain XML. Since some
> addresses are always reserved (e.g., 0:0:0 and 0:0:1), we need to handle
> those too.
> 
> Also all this should only be done if device flag is supported by qemu.
> ---
>  src/qemu/qemu_driver.c |    8 +++++---
>  1 files changed, 5 insertions(+), 3 deletions(-)
> 
> diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
> index e718816..2ca3940 100644
> --- a/src/qemu/qemu_driver.c
> +++ b/src/qemu/qemu_driver.c
> @@ -1455,11 +1455,13 @@ qemuReconnectDomain(void *payload, const char *name ATTRIBUTE_UNUSED, void *opaq
>      if (qemudExtractVersionInfo(obj->def->emulator,
>                                  NULL,
>                                  &qemuCmdFlags) >= 0 &&
> -        (qemuCmdFlags & QEMUD_CMD_FLAG_DEVICE))
> +        (qemuCmdFlags & QEMUD_CMD_FLAG_DEVICE)) {
>          priv->persistentAddrs = 1;
>  
> -    if (!(priv->pciaddrs = qemuDomainPCIAddressSetCreate(obj->def)))
> -        goto error;
> +        if (!(priv->pciaddrs = qemuDomainPCIAddressSetCreate(obj->def)) ||
> +            qemuAssignDevicePCISlots(obj->def, priv->pciaddrs) < 0)
> +            goto error;
> +    }
>  
>      if (driver->securityDriver &&
>          driver->securityDriver->domainReserveSecurityLabel &&

ACK

Daniel
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