[RFC][PATCH v2 04/21] x86/numa_emulation: pass numa node type to fake nodes

[Fengguang Wu]

From: Fan Du <fan...@intel.com>

Signed-off-by: Fan Du <fan...@intel.com>
---
 arch/x86/mm/numa_emulation.c |   14 ++++++++++++++
 1 file changed, 14 insertions(+)

--- linux.orig/arch/x86/mm/numa_emulation.c     2018-12-23 19:21:11.002206144 
+0800
+++ linux/arch/x86/mm/numa_emulation.c  2018-12-23 19:21:10.998206236 +0800
@@ -12,6 +12,8 @@
 
 static int emu_nid_to_phys[MAX_NUMNODES];
 static char *emu_cmdline __initdata;
+static nodemask_t emu_numa_nodes_pmem;
+static nodemask_t emu_numa_nodes_dram;
 
 void __init numa_emu_cmdline(char *str)
 {
@@ -311,6 +313,12 @@ static int __init split_nodes_size_inter
                                               min(end, limit) - start);
                        if (ret < 0)
                                return ret;
+
+                       /* Update numa node type for fake numa node */
+                       if (node_isset(i, emu_numa_nodes_pmem))
+                               node_set(nid - 1, numa_nodes_pmem);
+                       else
+                               node_set(nid - 1, numa_nodes_dram);
                }
        }
        return nid;
@@ -410,6 +418,12 @@ void __init numa_emulation(struct numa_m
                unsigned long n;
                int nid = 0;
 
+               emu_numa_nodes_pmem = numa_nodes_pmem;
+               emu_numa_nodes_dram = numa_nodes_dram;
+
+               nodes_clear(numa_nodes_pmem);
+               nodes_clear(numa_nodes_dram);
+
                n = simple_strtoul(emu_cmdline, &emu_cmdline, 0);
                ret = -1;
                for_each_node_mask(i, physnode_mask) {