[dpdk-dev] [PATCH] examples/power: fix wrong core_id with JSON cmds

David Hunt david.hunt at intel.com
Mon Jan 7 12:39:20 CET 2019


This patch fixes a bug introduced in the 64-core limtation
enhancement where the core_id is inadvertently converted from
virtual to physical even though it may already be a physical
core_id.

We should be using the core_type field, and only converting via
hypervisor when core_type is set to CORE_TYPE_VIRTUAL

Fixes: 5776b7a371d1 ("examples/power: allow VM to use lcores over 63")

Signed-off-by: David Hunt <david.hunt at intel.com>
---
 examples/vm_power_manager/channel_monitor.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/examples/vm_power_manager/channel_monitor.c b/examples/vm_power_manager/channel_monitor.c
index 85622e7cb..1a3a0fa76 100644
--- a/examples/vm_power_manager/channel_monitor.c
+++ b/examples/vm_power_manager/channel_monitor.c
@@ -640,7 +640,10 @@ process_request(struct channel_packet *pkt, struct channel_info *chan_info)
 	if (pkt->command == CPU_POWER) {
 		unsigned int core_num;
 
-		core_num = get_pcpu(chan_info, pkt->resource_id);
+		if (pkt->core_type == CORE_TYPE_VIRTUAL)
+			core_num = get_pcpu(chan_info, pkt->resource_id);
+		else
+			core_num = pkt->resource_id;
 
 		switch (pkt->unit) {
 		case(CPU_POWER_SCALE_MIN):
-- 
2.17.1



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