[libvirt] [PATCH v3 3/9] Add iommu group number info to virPCIDevice
The iommu group number need not be fetched from the sysfs
everytime as it remains constant. Fetch it once during
allocation
Signed-off-by: Shivaprasad G Bhat <sbhat(a)linux.vnet.ibm.com>
---
src/libvirt_private.syms | 1 +
src/util/virpci.c | 11 +++++++++++
src/util/virpci.h | 2 ++
3 files changed, 14 insertions(+)
diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms
index a835f18..1e624fe 100644
--- a/src/libvirt_private.syms
+++ b/src/libvirt_private.syms
@@ -1971,6 +1971,7 @@ virPCIDeviceNew;
virPCIDeviceReattach;
virPCIDeviceReattachInit;
virPCIDeviceReset;
+virPCIDeviceSetIommuGroup;
virPCIDeviceSetManaged;
virPCIDeviceSetRemoveSlot;
virPCIDeviceSetReprobe;
diff --git a/src/util/virpci.c b/src/util/virpci.c
index 876da70..b03521c 100644
--- a/src/util/virpci.c
+++ b/src/util/virpci.c
@@ -75,6 +75,7 @@ struct _virPCIDevice {
bool has_pm_reset;
bool managed;
char *stubDriver;
+ int iommuGroup;
/* used by reattach function */
bool unbind_from_stub;
@@ -1566,6 +1567,8 @@ virPCIDeviceNew(unsigned int domain,
char *product = NULL;
char *drvpath = NULL;
char *driver = NULL;
+ virPCIDeviceAddress devAddr = { domain, bus,
+ slot, function };
if (VIR_ALLOC(dev) < 0)
return NULL;
@@ -1613,6 +1616,8 @@ virPCIDeviceNew(unsigned int domain,
goto error;
}
+ dev->iommuGroup = virPCIDeviceAddressGetIOMMUGroupNum(&devAddr);
+
if (virPCIDeviceGetDriverPathAndName(dev, &drvpath, &driver) < 0)
goto cleanup;
@@ -1726,6 +1731,12 @@ virPCIDeviceSetStubDriver(virPCIDevicePtr dev, const char *driver)
return VIR_STRDUP(dev->stubDriver, driver);
}
+void
+virPCIDeviceSetIommuGroup(virPCIDevicePtr dev, int iommu)
+{
+ dev->iommuGroup = iommu;
+}
+
const char *
virPCIDeviceGetStubDriver(virPCIDevicePtr dev)
{
diff --git a/src/util/virpci.h b/src/util/virpci.h
index 64b9e96..a6c3628 100644
--- a/src/util/virpci.h
+++ b/src/util/virpci.h
@@ -87,6 +87,8 @@ int virPCIDeviceReset(virPCIDevicePtr dev,
virPCIDeviceListPtr activeDevs,
virPCIDeviceListPtr inactiveDevs);
+void virPCIDeviceSetIommuGroup(virPCIDevice *dev,
+ int iommu);
void virPCIDeviceSetManaged(virPCIDevice *dev,
bool managed);
unsigned int virPCIDeviceGetManaged(virPCIDevice *dev);