On Mon, 2016-11-07 at 14:50 -0500, Laine Stump wrote:
Before now, all the qemu hotplug functions assumed that all devices to be hotplugged were legacy PCI endpoint devices (VIR_PCI_CONNECT_TYPE_PCI_DEVICE). This worked out "okay", because all devices *are* legacy PCI endpoint devices on x86/440fx machinetypes, and hotplug didn't work properly on machinetypes using PCIe anyway (hotplugging onto a legacy PCI slot doesn't work, and until commit b87703cf any attempt to manually specify a PCIe address for a hotplugged device would be erroneously rejected). This patch makes all qemu hotplug operations honor the pciConnectFlags set by the single all-knowing function qemuDomainDeviceCalculatePCIConnectFlags(). This is done in 3 steps, but in a single commit since we would have to touch the other points at each step anyway: 1) add a flags argument to the hypervisor-agnostic virDomainPCIAddressEnsureAddr() (previously it hardcoded ..._PCI_DEVICE) 2) add a new qemu-specific function qemuDomainEnsurePCIAddress() which gets the correct pciConnectFlags for the device from qemuDomainDeviceConnectFlags(), then calls virDomainPCIAddressEnsureAddr(). 3) in qemu_hotplug.c replace all calls to virDomainPCIAddressEnsureAddr() with calls to qemuDomainEnsurePCIAddress() So in effect, we're putting a "shim" on top of all calls to virDomainPCIAddressEnsureAddr() that sets the right pciConnectFlags. --- src/conf/domain_addr.c | 10 ++-------- src/conf/domain_addr.h | 3 ++- src/qemu/qemu_domain_address.c | 27 +++++++++++++++++++++++++++ src/qemu/qemu_domain_address.h | 4 ++++ src/qemu/qemu_hotplug.c | 23 ++++++++++++++++------- 5 files changed, 51 insertions(+), 16 deletions(-)
Oh, just one more tiny detail: [...]
@@ -2512,7 +2521,7 @@ qemuDomainAttachShmemDevice(virQEMUDriverPtr driver, if ((shmem->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE || shmem->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI) && - (virDomainPCIAddressEnsureAddr(priv->pciaddrs, &shmem->info) < 0)) + (qemuDomainEnsurePCIAddress(vm, &dev) < 0)) return -1;
This branch should have had curly braces even before, but since you're changing the condition anyway you might as well slip them in now. And thanks for fixing the indentation :) -- Andrea Bolognani / Red Hat / Virtualization