On Thu, 2015-12-03 at 14:06 -0500, Laine Stump wrote:
> On 12/02/2015 12:39 PM, Andrea Bolognani wrote:
> > This is a straightforward wrapper around
> > virPCIDeviceAddressIOMMUGroupIterate() that will make some code less
> > awkward to write later on.
> > ---
> > src/libvirt_private.syms | 1 +
> > src/util/virpci.c | 26 ++++++++++++++++++++++++++
> > src/util/virpci.h | 8 ++++++--
> > 3 files changed, 33 insertions(+), 2 deletions(-)
> >
> > diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms
> > index c1fd9f6..f8aaa4c 100644
> > --- a/src/libvirt_private.syms
> > +++ b/src/libvirt_private.syms
> > @@ -1967,6 +1967,7 @@ virPCIDeviceGetStubDriver;
> > virPCIDeviceGetUnbindFromStub;
> > virPCIDeviceGetUsedBy;
> > virPCIDeviceHasPCIExpressLink;
> > +virPCIDeviceIOMMUGroupIterate;
> > virPCIDeviceIsAssignable;
> > virPCIDeviceIsPCIExpress;
> > virPCIDeviceListAdd;
> > diff --git a/src/util/virpci.c b/src/util/virpci.c
> > index e82583a..d3b2c7e 100644
> > --- a/src/util/virpci.c
> > +++ b/src/util/virpci.c
> > @@ -1786,6 +1786,32 @@ void virPCIDeviceReattachInit(virPCIDevicePtr pci)
> > pci->reprobe = true;
> > }
> >
> > +/**
> > + * virPCIDeviceIOMMUGroupIterate:
> > + * @dev: PCI device
> > + * @actor: function to be called for all PCI addresses in @dev's IOMMU group
> > + * @opaque: data passed as the last parameter to @actor
> > + *
> > + * Convenience wrapper around virPCIDeviceAddressIOMMUGroupIterate().
> > + *
> > + * Behaves exactly the same, except it takes a virPCIDevicePtr instead of a
> > + * virPCIDeviceAddressPtr as its first argument.
> > + *
> > + * Returns: 0 on success, <0 on failure.
> > + */
> > +int
> > +virPCIDeviceIOMMUGroupIterate(virPCIDevicePtr dev,
> > + virPCIDeviceAddressActor actor,
> > + void *opaque)
> > +{
> > + virPCIDeviceAddress devAddr = { dev->domain, dev->bus,
> > + dev->slot, dev->function };
> > +
> > + return virPCIDeviceAddressIOMMUGroupIterate(&devAddr,
> > + actor,
> > + opaque);
> > +}
>
> Instead of creating this new function, how about if we change
> virPCIDevice to contain a virPCIDeviceAddress rather than individual
> domain, bus, slot, and function?
I think you already mentioned doing so in the past, and it's
definitely a good idea.
I'll get to it. After the change, we'll be able to just use
virPCIDeviceAddressIOMMUGroupIterate(virPCIDeviceGetAddress(dev),
actor,
data);
with virPCIDeviceGetAddress() returning a pointer to the
address stored inside the device instead of a newly-allocated
object.
Cheers.
--
Andrea Bolognani
Software Engineer - Virtualization Team
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