From fadb055bd4abcb3f356854742c1493560a7d136e Mon Sep 17 00:00:00 2001 From: Igor Mammedov Date: Fri, 21 Aug 2020 06:05:19 -0400 Subject: [PATCH] numa: hmat: fix cache size check MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit when QEMU is started like: qemu-system-x86_64 -smp 2 -machine hmat=on \ -m 2G \ -object memory-backend-ram,size=1G,id=m0 \ -object memory-backend-ram,size=1G,id=m1 \ -numa node,nodeid=0,memdev=m0 \ -numa node,nodeid=1,memdev=m1,initiator=0 \ -numa cpu,node-id=0,socket-id=0 \ -numa cpu,node-id=0,socket-id=1 \ -numa hmat-lb,initiator=0,target=0,hierarchy=memory,data-type=access-latency,latency=5 \ -numa hmat-lb,initiator=0,target=0,hierarchy=memory,data-type=access-bandwidth,bandwidth=200M \ -numa hmat-lb,initiator=0,target=1,hierarchy=memory,data-type=access-latency,latency=10 \ -numa hmat-lb,initiator=0,target=1,hierarchy=memory,data-type=access-bandwidth,bandwidth=100M \ -numa hmat-cache,node-id=0,size=8K,level=1,associativity=direct,policy=write-back,line=5 \ -numa hmat-cache,node-id=0,size=16K,level=2,associativity=direct,policy=write-back,line=5 it errors out with: -numa hmat-cache,node-id=0,size=16K,level=2,associativity=direct,policy=write-back,line=5: Invalid size=16384, the size of level=2 should be less than the size(8192) of level=1 which doesn't look right as one would expect that L1 < L2 < L3 ... Fix it by sawpping relevant size checks. Fixes: c412a48d4d91 (numa: Extend CLI to provide memory side cache information) Signed-off-by: Igor Mammedov Message-Id: <20200821100519.1325691-1-imammedo@redhat.com> Reviewed-by: Philippe Mathieu-Daudé Signed-off-by: Eduardo Habkost --- hw/core/numa.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/hw/core/numa.c b/hw/core/numa.c index d1a94a14f8..f9593ec716 100644 --- a/hw/core/numa.c +++ b/hw/core/numa.c @@ -425,10 +425,10 @@ void parse_numa_hmat_cache(MachineState *ms, NumaHmatCacheOptions *node, if ((node->level > 1) && ms->numa_state->hmat_cache[node->node_id][node->level - 1] && - (node->size >= + (node->size <= ms->numa_state->hmat_cache[node->node_id][node->level - 1]->size)) { error_setg(errp, "Invalid size=%" PRIu64 ", the size of level=%" PRIu8 - " should be less than the size(%" PRIu64 ") of " + " should be larger than the size(%" PRIu64 ") of " "level=%u", node->size, node->level, ms->numa_state->hmat_cache[node->node_id] [node->level - 1]->size, @@ -438,10 +438,10 @@ void parse_numa_hmat_cache(MachineState *ms, NumaHmatCacheOptions *node, if ((node->level < HMAT_LB_LEVELS - 1) && ms->numa_state->hmat_cache[node->node_id][node->level + 1] && - (node->size <= + (node->size >= ms->numa_state->hmat_cache[node->node_id][node->level + 1]->size)) { error_setg(errp, "Invalid size=%" PRIu64 ", the size of level=%" PRIu8 - " should be larger than the size(%" PRIu64 ") of " + " should be less than the size(%" PRIu64 ") of " "level=%u", node->size, node->level, ms->numa_state->hmat_cache[node->node_id] [node->level + 1]->size, -- 2.30.2