aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorAlexey Kardashevskiy <aik@ozlabs.ru>2016-07-27 18:03:38 +1000
committerDavid Gibson <david@gibson.dropbear.id.au>2016-09-23 12:39:07 +1000
commit4814401fa01271235df2ac60fafc831bd3d624f3 (patch)
treef18532b50535097ad5b8fcfd379e28d30408900a
parent27a83f8e7ed63ced7e36c47a42f46ab44ee02bd8 (diff)
spapr_pci: Add numa node id
This adds a numa id property to a PHB to allow linking passed PCI device to CPU/memory. It is up to the management stack to do CPU/memory pinning to the node with the actual PCI device. Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> [dwg: Renamed property from "node" to "numa_node" to match the similar one in the pxb device] Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
-rw-r--r--hw/ppc/spapr_pci.c13
-rw-r--r--include/hw/pci-host/spapr.h2
2 files changed, 15 insertions, 0 deletions
diff --git a/hw/ppc/spapr_pci.c b/hw/ppc/spapr_pci.c
index 949c44fec8..4f008654d6 100644
--- a/hw/ppc/spapr_pci.c
+++ b/hw/ppc/spapr_pci.c
@@ -47,6 +47,7 @@
#include "sysemu/device_tree.h"
#include "sysemu/kvm.h"
#include "sysemu/hostmem.h"
+#include "sysemu/numa.h"
#include "hw/vfio/vfio.h"
@@ -1544,6 +1545,7 @@ static Property spapr_phb_properties[] = {
DEFINE_PROP_BOOL("ddw", sPAPRPHBState, ddw_enabled, true),
DEFINE_PROP_UINT64("pgsz", sPAPRPHBState, page_size_mask,
(1ULL << 12) | (1ULL << 16)),
+ DEFINE_PROP_UINT32("numa_node", sPAPRPHBState, numa_node, -1),
DEFINE_PROP_END_OF_LIST(),
};
@@ -1805,6 +1807,11 @@ int spapr_populate_pci_dt(sPAPRPHBState *phb,
cpu_to_be32(1),
cpu_to_be32(RTAS_IBM_RESET_PE_DMA_WINDOW)
};
+ uint32_t associativity[] = {cpu_to_be32(0x4),
+ cpu_to_be32(0x0),
+ cpu_to_be32(0x0),
+ cpu_to_be32(0x0),
+ cpu_to_be32(phb->numa_node)};
sPAPRTCETable *tcet;
PCIBus *bus = PCI_HOST_BRIDGE(phb)->bus;
sPAPRFDT s_fdt;
@@ -1837,6 +1844,12 @@ int spapr_populate_pci_dt(sPAPRPHBState *phb,
&ddw_extensions, sizeof(ddw_extensions)));
}
+ /* Advertise NUMA via ibm,associativity */
+ if (nb_numa_nodes > 1) {
+ _FDT(fdt_setprop(fdt, bus_off, "ibm,associativity", associativity,
+ sizeof(associativity)));
+ }
+
/* Build the interrupt-map, this must matches what is done
* in pci_spapr_map_irq
*/
diff --git a/include/hw/pci-host/spapr.h b/include/hw/pci-host/spapr.h
index 1a2b11b322..30dbd461d4 100644
--- a/include/hw/pci-host/spapr.h
+++ b/include/hw/pci-host/spapr.h
@@ -75,6 +75,8 @@ struct sPAPRPHBState {
bool ddw_enabled;
uint64_t page_size_mask;
uint64_t dma64_win_addr;
+
+ uint32_t numa_node;
};
#define SPAPR_PCI_MAX_INDEX 255