On 08/11/2015 03:03 PM, Laine Stump wrote:
Commit e8d5517 updated the domain post-parse to automatically add
pcie-root et al for certain ARM "virt" machinetypes, but didn't update
the function qemuDomainSupportsPCI() which is called later on when we
are auto-assigning PCI addresses and default settings for the PCI
controller <model> and <target> attributes. The result was that PCI
addresses weren't assigned, and the controllers didn't have their
attribute default values set, leading to an error when the domain was
started, e.g.:
internal error: autogenerated dmi-to-pci-bridge options not set
This patch duplicates the check made in the earlier patch, so that PCI
address auto-assignment and target/model default values will be set.
---
The example Cole gave in his email reporting this bug is fixed by this
patch.
src/qemu/qemu_command.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
ACK
John
It's very tangled web... Perhaps an additional comment to point at
qemuDomainSupportsPCI in qemu_domain.c just before the "if
(addPCIeRoot)" may help future changes that could trip into the same
rabbit hole...
diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index ae03618..84cbfe1 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -1742,7 +1742,7 @@ qemuCollectPCIAddress(virDomainDefPtr def ATTRIBUTE_UNUSED,
}
static bool
-qemuDomainSupportsPCI(virDomainDefPtr def)
+qemuDomainSupportsPCI(virDomainDefPtr def, virQEMUCapsPtr qemuCaps)
{
if ((def->os.arch != VIR_ARCH_ARMV7L) && (def->os.arch !=
VIR_ARCH_AARCH64))
return true;
@@ -1750,6 +1750,11 @@ qemuDomainSupportsPCI(virDomainDefPtr def)
if (STREQ(def->os.machine, "versatilepb"))
return true;
+ if ((STREQ(def->os.machine, "virt") ||
+ STRPREFIX(def->os.machine, "virt-")) &&
+ virQEMUCapsGet(qemuCaps, QEMU_CAPS_OBJECT_GPEX))
+ return true;
+
return false;
}
@@ -2267,7 +2272,7 @@ qemuDomainAssignPCIAddresses(virDomainDefPtr def,
if (!(addrs = qemuDomainPCIAddressSetCreate(def, nbuses, false)))
goto cleanup;
- if (qemuDomainSupportsPCI(def)) {
+ if (qemuDomainSupportsPCI(def, qemuCaps)) {
if (qemuValidateDevicePCISlotsChipsets(def, qemuCaps, addrs) < 0)
goto cleanup;