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[Qemu-devel] [PATCH v1 4/7] numa: Classify the numa nodes as memory init
From: |
Liu Jingqi |
Subject: |
[Qemu-devel] [PATCH v1 4/7] numa: Classify the numa nodes as memory initiators and memory targets |
Date: |
Wed, 9 May 2018 16:36:29 +0800 |
An initiator proximity domain (memory initiator) is any device
such as a CPU or a separate memory I/O device that can initiate
a memory request. A target proximity domain (memory target)
is a CPU-accessible physical address range.
Signed-off-by: Liu Jingqi <address@hidden>
---
numa.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/numa.c b/numa.c
index 70b150e..fe0009c 100644
--- a/numa.c
+++ b/numa.c
@@ -40,6 +40,7 @@
#include "qemu/option.h"
#include "qemu/config-file.h"
#include "qemu/cutils.h"
+#include "hw/acpi/hmat.h"
QemuOptsList qemu_numa_opts = {
.name = "numa",
@@ -100,6 +101,10 @@ static void parse_numa_node(MachineState *ms,
NumaNodeOptions *node,
machine_set_cpu_numa_node(ms, &props, &error_fatal);
}
+ if (node->cpus) {
+ initiator_pxm[num_initiator++] = nodenr;
+ }
+
if (node->has_mem && node->has_memdev) {
error_setg(errp, "cannot specify both mem= and memdev=");
return;
@@ -116,6 +121,7 @@ static void parse_numa_node(MachineState *ms,
NumaNodeOptions *node,
if (node->has_mem) {
numa_info[nodenr].node_mem = node->mem;
+ target_pxm[num_target++] = nodenr;
}
if (node->has_memdev) {
Object *o;
@@ -128,6 +134,7 @@ static void parse_numa_node(MachineState *ms,
NumaNodeOptions *node,
object_ref(o);
numa_info[nodenr].node_mem = object_property_get_uint(o, "size", NULL);
numa_info[nodenr].node_memdev = MEMORY_BACKEND(o);
+ target_pxm[num_target++] = nodenr;
}
numa_info[nodenr].present = true;
max_numa_nodeid = MAX(max_numa_nodeid, nodenr + 1);
--
2.7.4
- [Qemu-devel] [PATCH v1 4/7] numa: Classify the numa nodes as memory initiators and memory targets,
Liu Jingqi <=