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[Qemu-ppc] [PATCH 3/7] spapr: Refactor spapr_populate_memory()
From: |
Alexey Kardashevskiy |
Subject: |
[Qemu-ppc] [PATCH 3/7] spapr: Refactor spapr_populate_memory() |
Date: |
Mon, 16 Jun 2014 17:53:49 +1000 |
Current QEMU does not support memoryless NUMA nodes.
This prepares SPAPR for that.
This moves 2 calls of spapr_populate_memory_node() into
the existing loop which handles nodes other than than
the first one.
Signed-off-by: Alexey Kardashevskiy <address@hidden>
---
hw/ppc/spapr.c | 31 +++++++++++--------------------
1 file changed, 11 insertions(+), 20 deletions(-)
diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index cb3a10a..666b676 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -689,28 +689,13 @@ static void spapr_populate_memory_node(void *fdt, int
nodeid, hwaddr start,
static int spapr_populate_memory(sPAPREnvironment *spapr, void *fdt)
{
- hwaddr node0_size, mem_start, node_size;
+ hwaddr mem_start, node_size;
int i;
- /* memory node(s) */
- if (nb_numa_nodes > 1 && node_mem[0] < ram_size) {
- node0_size = node_mem[0];
- } else {
- node0_size = ram_size;
- }
-
- /* RMA */
- spapr_populate_memory_node(fdt, 0, 0, spapr->rma_size);
-
- /* RAM: Node 0 */
- if (node0_size > spapr->rma_size) {
- spapr_populate_memory_node(fdt, 0, spapr->rma_size,
- node0_size - spapr->rma_size);
- }
-
- /* RAM: Node 1 and beyond */
- mem_start = node0_size;
- for (i = 1; i < nb_numa_nodes; i++) {
+ for (i = 0, mem_start = 0; i < nb_numa_nodes; ++i) {
+ if (!node_mem[i]) {
+ continue;
+ }
if (mem_start >= ram_size) {
node_size = 0;
} else {
@@ -719,6 +704,12 @@ static int spapr_populate_memory(sPAPREnvironment *spapr,
void *fdt)
node_size = ram_size - mem_start;
}
}
+ if (!mem_start) {
+ /* ppc_spapr_init() checks for rma_size <= node0_size already */
+ spapr_populate_memory_node(fdt, i, 0, spapr->rma_size);
+ mem_start += spapr->rma_size;
+ node_size -= spapr->rma_size;
+ }
spapr_populate_memory_node(fdt, i, mem_start, node_size);
mem_start += node_size;
}
--
2.0.0
- [Qemu-ppc] [PATCH 7/7] numa: Allow empty nodes, (continued)
[Qemu-ppc] [PATCH 5/7] spapr: Add a helper for node0_size calculation, Alexey Kardashevskiy, 2014/06/16
[Qemu-ppc] [PATCH 2/7] spapr: Use DT memory node rendering helper for other nodes, Alexey Kardashevskiy, 2014/06/16
[Qemu-ppc] [PATCH 3/7] spapr: Refactor spapr_populate_memory(),
Alexey Kardashevskiy <=
Re: [Qemu-ppc] [PATCH 3/7] spapr: Refactor spapr_populate_memory(), Nishanth Aravamudan, 2014/06/20