Since you have to unplug all the functions in a slot at the same time anyway, I don't see the point in reverting this commit - you'll just end up needing to call it multiple times - once for each function that was in the slot. (just guessing without looking at the code - perhaps it's already being called from within lower level functions for each device, and each device gets its own notification from qemu that it's been detached? Or to ask a more specific question - exactly what happens with device detach? Do you send qemu a single detach command and it detaches all the functions as a single unit? Or do you send it multiple detach commands, with function 0 being the last?) On 05/18/2016 05:30 PM, Shivaprasad G Bhat wrote:
The commit 6fe678c is reverted. The code is moved around and cant revert staright.
Signed-off-by: Shivaprasad G Bhat <sbhat@linux.vnet.ibm.com> --- src/conf/domain_addr.c | 22 +++++++++------------- src/libvirt_private.syms | 1 + src/qemu/qemu_domain_address.c | 2 +- 3 files changed, 11 insertions(+), 14 deletions(-)
diff --git a/src/conf/domain_addr.c b/src/conf/domain_addr.c index acd8ce6..35c7cd4 100644 --- a/src/conf/domain_addr.c +++ b/src/conf/domain_addr.c @@ -472,21 +472,17 @@ virDomainPCIAddressEnsureAddr(virDomainPCIAddressSetPtr addrs, goto cleanup;
if (dev->type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI) { - /* We do not support hotplug multi-function PCI device now, so we should - * reserve the whole slot. The function of the PCI device must be 0. - */ - if (dev->addr.pci.function != 0) { - virReportError(VIR_ERR_INTERNAL_ERROR, "%s", - _("Only PCI device addresses with function=0" - " are supported")); - goto cleanup; - } + if (((dev->addr.pci.function == 0) && (dev->addr.pci.multi == VIR_TRISTATE_SWITCH_ON)) || + dev->addr.pci.function != 0) {
- if (!virDomainPCIAddressValidate(addrs, &dev->addr.pci, - addrStr, flags, true)) - goto cleanup; + if (!virDomainPCIAddressValidate(addrs, &dev->addr.pci, + addrStr, flags, true)) + goto cleanup;
- ret = virDomainPCIAddressReserveSlot(addrs, &dev->addr.pci, flags); + ret = virDomainPCIAddressReserveAddr(addrs, &dev->addr.pci, flags, false, true); + } else { + ret = virDomainPCIAddressReserveSlot(addrs, &dev->addr.pci, flags); + } } else { ret = virDomainPCIAddressReserveNextSlot(addrs, dev, flags); } diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms index fb24808..e4953b7 100644 --- a/src/libvirt_private.syms +++ b/src/libvirt_private.syms @@ -98,6 +98,7 @@ virDomainPCIAddressBusSetModel; virDomainPCIAddressEnsureAddr; virDomainPCIAddressFlagsCompatible; virDomainPCIAddressGetNextSlot; +virDomainPCIAddressReleaseAddr; virDomainPCIAddressReleaseSlot; virDomainPCIAddressReserveAddr; virDomainPCIAddressReserveNextSlot; diff --git a/src/qemu/qemu_domain_address.c b/src/qemu/qemu_domain_address.c index 9c8c262..1e7d98c 100644 --- a/src/qemu/qemu_domain_address.c +++ b/src/qemu/qemu_domain_address.c @@ -1682,7 +1682,7 @@ qemuDomainReleaseDeviceAddress(virDomainObjPtr vm, NULLSTR(devstr)); else if (info->type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI && virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_DEVICE) && - virDomainPCIAddressReleaseSlot(priv->pciaddrs, + virDomainPCIAddressReleaseAddr(priv->pciaddrs, &info->addr.pci) < 0) VIR_WARN("Unable to release PCI address on %s", NULLSTR(devstr));
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