[libvirt] [PATCH 07/11] conf: Add virDomainPCIAddressSet.isPCIeToPCIBridgeSupported
Just like the existing areMultipleRootsSupported, this will
allow us to change the results of the driver-agnostic PCI
address allocation logic based on whether the QEMU binary
supports certain features.
Signed-off-by: Andrea Bolognani <abologna(a)redhat.com>
---
src/conf/domain_addr.h | 2 ++
src/qemu/qemu_domain_address.c | 8 ++++++--
2 files changed, 8 insertions(+), 2 deletions(-)
diff --git a/src/conf/domain_addr.h b/src/conf/domain_addr.h
index 87248a4fb8..3236b7d6de 100644
--- a/src/conf/domain_addr.h
+++ b/src/conf/domain_addr.h
@@ -118,6 +118,8 @@ struct _virDomainPCIAddressSet {
and addresses aren't saved in device infos */
/* If true, the guest can have multiple pci-root controllers */
bool areMultipleRootsSupported;
+ /* If true, the guest can use the pcie-to-pci-bridge controller */
+ bool isPCIeToPCIBridgeSupported;
};
typedef struct _virDomainPCIAddressSet virDomainPCIAddressSet;
typedef virDomainPCIAddressSet *virDomainPCIAddressSetPtr;
diff --git a/src/qemu/qemu_domain_address.c b/src/qemu/qemu_domain_address.c
index 86d9807908..7fe9d5926c 100644
--- a/src/qemu/qemu_domain_address.c
+++ b/src/qemu/qemu_domain_address.c
@@ -1338,6 +1338,7 @@ qemuDomainCollectPCIAddress(virDomainDefPtr def ATTRIBUTE_UNUSED,
static virDomainPCIAddressSetPtr
qemuDomainPCIAddressSetCreate(virDomainDefPtr def,
+ virQEMUCapsPtr qemuCaps,
unsigned int nbuses,
bool dryRun)
{
@@ -1355,6 +1356,9 @@ qemuDomainPCIAddressSetCreate(virDomainDefPtr def,
if (qemuDomainIsPSeries(def))
addrs->areMultipleRootsSupported = true;
+ if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_PCIE_PCI_BRIDGE))
+ addrs->isPCIeToPCIBridgeSupported = true;
+
for (i = 0; i < def->ncontrollers; i++) {
virDomainControllerDefPtr cont = def->controllers[i];
size_t idx = cont->idx;
@@ -2361,7 +2365,7 @@ qemuDomainAssignPCIAddresses(virDomainDefPtr def,
if (nbuses > 0) {
/* 1st pass to figure out how many PCI bridges we need */
- if (!(addrs = qemuDomainPCIAddressSetCreate(def, nbuses, true)))
+ if (!(addrs = qemuDomainPCIAddressSetCreate(def, qemuCaps, nbuses, true)))
goto cleanup;
if (qemuDomainValidateDevicePCISlotsChipsets(def, qemuCaps,
@@ -2491,7 +2495,7 @@ qemuDomainAssignPCIAddresses(virDomainDefPtr def,
addrs = NULL;
}
- if (!(addrs = qemuDomainPCIAddressSetCreate(def, nbuses, false)))
+ if (!(addrs = qemuDomainPCIAddressSetCreate(def, qemuCaps, nbuses, false)))
goto cleanup;
if (qemuDomainSupportsPCI(def, qemuCaps)) {
--
2.14.3