From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:33965) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YNIQ6-00065o-PR for qemu-devel@nongnu.org; Mon, 16 Feb 2015 04:56:51 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1YNIQ3-0003b1-JA for qemu-devel@nongnu.org; Mon, 16 Feb 2015 04:56:50 -0500 From: Marcel Apfelbaum Date: Mon, 16 Feb 2015 11:54:16 +0200 Message-Id: <1424080457-13752-17-git-send-email-marcel@redhat.com> In-Reply-To: <1424080457-13752-1-git-send-email-marcel@redhat.com> References: <1424080457-13752-1-git-send-email-marcel@redhat.com> Subject: [Qemu-devel] [PATCH RFC V2 16/17] hw/pci_bus: add support for NUMA nodes List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: seabios@seabios.org, kraxel@redhat.com, mst@redhat.com, quintela@redhat.com, agraf@suse.de, marcel@redhat.com, alex.williamson@redhat.com, kevin@koconnor.net, qemu-ppc@nongnu.org, hare@suse.de, imammedo@redhat.com, amit.shah@redhat.com, pbonzini@redhat.com, leon.alrae@imgtec.com, aurelien@aurel32.net, rth@twiddle.net PCI root buses can be attached to a specific NUMA node. PCI buses are not attached be default to a NUMA node. Signed-off-by: Marcel Apfelbaum --- hw/pci/pci_bus.c | 7 +++++++ include/hw/pci/pci_bus.h | 6 ++++++ include/sysemu/sysemu.h | 1 + 3 files changed, 14 insertions(+) diff --git a/hw/pci/pci_bus.c b/hw/pci/pci_bus.c index ed99208..15882a7 100644 --- a/hw/pci/pci_bus.c +++ b/hw/pci/pci_bus.c @@ -13,6 +13,7 @@ #include "hw/pci/pci_bus.h" #include "hw/pci/pci_bridge.h" #include "monitor/monitor.h" +#include "sysemu/sysemu.h" typedef struct { uint16_t class; @@ -478,6 +479,11 @@ static int pcibus_num(PCIBus *bus) return bus->parent_dev->config[PCI_SECONDARY_BUS]; } +static uint16_t pcibus_numa_node(PCIBus *bus) +{ + return NUMA_NODE_UNASSIGNED; +} + static void pci_bus_class_init(ObjectClass *klass, void *data) { BusClass *k = BUS_CLASS(klass); @@ -492,6 +498,7 @@ static void pci_bus_class_init(ObjectClass *klass, void *data) pbc->is_root = pcibus_is_root; pbc->bus_num = pcibus_num; + pbc->numa_node = pcibus_numa_node; } static const TypeInfo pci_bus_info = { diff --git a/include/hw/pci/pci_bus.h b/include/hw/pci/pci_bus.h index 553814e..75cd1fa 100644 --- a/include/hw/pci/pci_bus.h +++ b/include/hw/pci/pci_bus.h @@ -25,6 +25,7 @@ typedef struct PCIBusClass { bool (*is_root)(PCIBus *bus); int (*bus_num)(PCIBus *bus); + uint16_t (*numa_node)(PCIBus *bus); } PCIBusClass; struct PCIBus { @@ -60,6 +61,11 @@ static inline int pci_bus_num(PCIBus *bus) return PCI_BUS_GET_CLASS(bus)->bus_num(bus); } +static inline int pci_bus_numa_node(PCIBus *bus) +{ + return PCI_BUS_GET_CLASS(bus)->numa_node(bus); +} + typedef struct PCIBridgeWindows PCIBridgeWindows; /* diff --git a/include/sysemu/sysemu.h b/include/sysemu/sysemu.h index 748d059..252b9ea 100644 --- a/include/sysemu/sysemu.h +++ b/include/sysemu/sysemu.h @@ -139,6 +139,7 @@ extern const char *mem_path; extern int mem_prealloc; #define MAX_NODES 128 +#define NUMA_NODE_UNASSIGNED MAX_NODES /* The following shall be true for all CPUs: * cpu->cpu_index < max_cpus <= MAX_CPUMASK_BITS -- 2.1.0