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numa: drop support for '-numa node' (without memory specified)

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it was deprecated since 4.1
commit 4bb4a2732e (numa: deprecate implict memory distribution between nodes)

Users of existing VMs, wishing to preserve the same RAM distribution,
should configure it explicitly using ``-numa node,memdev`` options.
Current RAM distribution can be retrieved using HMP command
`info numa` and if separate memory devices (pc|nv-dimm) are present
use `info memory-device` and subtract device memory from output of
`info numa`.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20200911084410.788171-2-imammedo@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Igor Mammedov 2020-09-11 04:44:08 -04:00 • committed by Paolo Bonzini
parent 8f814ea1a2
commit b21aa7e01e
8 changed files with 14 additions and 74 deletions
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55
hw/core/numa.c
View file

@ -611,42 +611,6 @@ static void complete_init_numa_distance(MachineState *ms)
}
}
void numa_legacy_auto_assign_ram(MachineClass *mc, NodeInfo *nodes,
int nb_nodes, ram_addr_t size)
{
int i;
uint64_t usedmem = 0;
/* Align each node according to the alignment
* requirements of the machine class
*/
for (i = 0; i < nb_nodes - 1; i++) {
nodes[i].node_mem = (size / nb_nodes) &
~((1 << mc->numa_mem_align_shift) - 1);
usedmem += nodes[i].node_mem;
}
nodes[i].node_mem = size - usedmem;
}
void numa_default_auto_assign_ram(MachineClass *mc, NodeInfo *nodes,
int nb_nodes, ram_addr_t size)
{
int i;
uint64_t usedmem = 0, node_mem;
uint64_t granularity = size / nb_nodes;
uint64_t propagate = 0;
for (i = 0; i < nb_nodes - 1; i++) {
node_mem = (granularity + propagate) &
~((1 << mc->numa_mem_align_shift) - 1);
propagate = granularity + propagate - node_mem;
nodes[i].node_mem = node_mem;
usedmem += node_mem;
}
nodes[i].node_mem = size - usedmem;
}
static void numa_init_memdev_container(MachineState *ms, MemoryRegion *ram)
{
int i;
@ -717,25 +681,6 @@ void numa_complete_configuration(MachineState *ms)
ms->numa_state->num_nodes = MAX_NODES;
}
/* If no memory size is given for any node, assume the default case
* and distribute the available memory equally across all nodes
*/
for (i = 0; i < ms->numa_state->num_nodes; i++) {
if (numa_info[i].node_mem != 0) {
break;
}
}
if (i == ms->numa_state->num_nodes) {
assert(mc->numa_auto_assign_ram);
mc->numa_auto_assign_ram(mc, numa_info,
ms->numa_state->num_nodes, ram_size);
if (!qtest_enabled()) {
warn_report("Default splitting of RAM between nodes is deprecated,"
" Use '-numa node,memdev' to explictly define RAM"
" allocation per node");
}
}
numa_total = 0;
for (i = 0; i < ms->numa_state->num_nodes; i++) {
numa_total += numa_info[i].node_mem;