On Thu, 24 Mar 2011 15:44:05 +0800
Wen Congyang <we...@cn.fujitsu.com> wrote:
> At 03/24/2011 09:31 AM, KAMEZAWA Hiroyuki Write:
> >>From 1d2630896a950b87043c9e77fdbcdc23626098ee Mon Sep 17 00:00:00 2001
> > From: KAMEZAWA Hiroyuki <kamezawa.hir...@jp.fujitsu.com>
> > Date: Thu, 24 Mar 2011 10:05:18 +0900
> > Subject: [PATCHv6 2/3] libvirt/qemu - support persistent modification of
> > qemu disks
> >
> > support changes of disks by VIR_DOMAIN_DEVICE_MODIFY_CONFIG
> > for qemu.
> >
> > Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hir...@jp.fujitsu.com>
> >
> > Changelog v5->v6:
> > - fixed pci address/device controller assign failure case.
> >
> > Changelog v4->v5:
> > - moved some functions to domain_conf.c
> > - added virDomainDefAddImplicitControllers() for ide/scsi
> > - report OOM.
> > - clean up.
> > ---
> > src/conf/domain_conf.c | 22 +++++++++++++++++++
> > src/conf/domain_conf.h | 3 +-
> > src/libvirt_private.syms | 2 +
> > src/qemu/qemu_driver.c | 51
> > +++++++++++++++++++++++++++++++++++++++++++++-
> > 4 files changed, 76 insertions(+), 2 deletions(-)
> >
> > diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
> > index c637300..1bf8fbe 100644
> > --- a/src/conf/domain_conf.c
> > +++ b/src/conf/domain_conf.c
> > @@ -4859,6 +4859,19 @@ virVirtualPortProfileFormat(virBufferPtr buf,
> > virBufferVSprintf(buf, "%s</virtualport>\n", indent);
> > }
> >
> > +int virDomainDiskIndexByName(virDomainDefPtr def, const char *name)
> > +{
> > + virDomainDiskDefPtr vdisk;
> > + int i;
> > +
> > + for (i = 0; i < def->ndisks; i++) {
> > + vdisk = def->disks[i];
> > + if (STREQ(vdisk->dst, name))
> > + return i;
> > + }
> > + return -1;
> > +}
> > +
> > int virDomainDiskInsert(virDomainDefPtr def,
> > virDomainDiskDefPtr disk)
> > {
> > @@ -4930,6 +4943,15 @@ void virDomainDiskRemove(virDomainDefPtr def, size_t
> > i)
> > }
> > }
> >
> > +int virDomainDiskRemoveByName(virDomainDefPtr def, const char *name)
> > +{
> > + int i = virDomainDiskIndexByName(def, name);
> > + if (i < 0)
> > + return -1;
> > + virDomainDiskRemove(def, i);
> > + return 0;
> > +}
> > +
> >
> > int virDomainControllerInsert(virDomainDefPtr def,
> > virDomainControllerDefPtr controller)
> > diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h
> > index cbd0f98..236ad04 100644
> > --- a/src/conf/domain_conf.h
> > +++ b/src/conf/domain_conf.h
> > @@ -1258,7 +1258,7 @@ int virDomainCpuSetParse(const char **str,
> > int maxcpu);
> > char *virDomainCpuSetFormat(char *cpuset,
> > int maxcpu);
> > -
> > +int virDomainDiskIndexByName(virDomainDefPtr def, const char *name);
> > int virDomainDiskInsert(virDomainDefPtr def,
> > virDomainDiskDefPtr disk);
> > void virDomainDiskInsertPreAlloced(virDomainDefPtr def,
> > @@ -1266,6 +1266,7 @@ void virDomainDiskInsertPreAlloced(virDomainDefPtr
> > def,
> > int virDomainDiskDefAssignAddress(virCapsPtr caps, virDomainDiskDefPtr
> > def);
> >
> > void virDomainDiskRemove(virDomainDefPtr def, size_t i);
> > +int virDomainDiskRemoveByName(virDomainDefPtr def, const char *name);
> >
> > int virDomainControllerInsert(virDomainDefPtr def,
> > virDomainControllerDefPtr controller);
> > diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms
> > index 55be36e..9ced196 100644
> > --- a/src/libvirt_private.syms
> > +++ b/src/libvirt_private.syms
> > @@ -243,11 +243,13 @@ virDomainDiskDefFree;
> > virDomainDiskDeviceTypeToString;
> > virDomainDiskErrorPolicyTypeFromString;
> > virDomainDiskErrorPolicyTypeToString;
> > +virDomainDiskIndexByName;
> > virDomainDiskInsert;
> > virDomainDiskInsertPreAlloced;
> > virDomainDiskIoTypeFromString;
> > virDomainDiskIoTypeToString;
> > virDomainDiskRemove;
> > +virDomainDiskRemoveByName;
> > virDomainDiskTypeFromString;
> > virDomainDiskTypeToString;
> > virDomainFSDefFree;
> > diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
> > index 468361b..386b654 100644
> > --- a/src/qemu/qemu_driver.c
> > +++ b/src/qemu/qemu_driver.c
> > @@ -4140,6 +4140,24 @@ cleanup:
> > return ret;
> > }
> >
> > +static int qemuDomainDeviceAddressFixup(virDomainDefPtr vmdef, bool pci)
> > +{
> > + if (pci) {
> > + if (qemuDomainAssignPCIAddresses(vmdef)) {
> > + qemuReportError(VIR_ERR_INVALID_ARG, "%s",
> > + _("device or domain PCI addresses."));
> > + return -1;
> > + }
> > + } else {
> > + if (virDomainDefAddImplicitControllers(vmdef) < 0) {
> > + qemuReportError(VIR_ERR_INVALID_ARG, "%s",
> > + _("device address or domain device
> > controllers."));
> > + return -1;
> > + }
> > + }
>
> Do not report error when qemuDomainAssignPCIAddresses() or
> virDomainDefAddImplicitControllers()
> failed, because we have reported the error in these functions.
>
Hmm, I didn't see any error message at failure caused by this...I'll check
again.
Thanks,
-Kame
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