mbox series

[v3,0/3] Fix couple of issues with AMD topology

Message ID 159681772267.9679.1334429994189974662.stgit@naples-babu.amd.com (mailing list archive)
Headers show
Series Fix couple of issues with AMD topology | expand

Message

Babu Moger Aug. 7, 2020, 4:32 p.m. UTC 
This series fixes couple of issues with recent topology related code.
1. Warn users to pass the dies information if EPYC cpu is numa configured.

2. Remove the node_id references in topology and use die_id instead.

3. With node_id removed in topology the uninitialized memory issue 
   with -device and CPU hotplug will be fixed.
   Link: https://bugzilla.redhat.com/show_bug.cgi?id=1828750

---
v3:
  Added a new check to pass the dies for EPYC numa configuration.
  Added Simplify CPUID_8000_001E patch with some changes suggested by Igor.
  Dropped the patch to build the topology from CpuInstanceProperties.
  TODO: Not sure if we still need the Autonuma changes Igor mentioned.
  Needs more clarity on that.

v2:
   https://lore.kernel.org/qemu-devel/159362436285.36204.986406297373871949.stgit@naples-babu.amd.com/
 - Used the numa information from CpuInstanceProperties for building
   the apic_id suggested by Igor.
 - Also did some minor code re-aarangement to take care of changes.
 - Dropped the patch "Simplify CPUID_8000_001E" from v1. Will send
   it later.

v1:
 https://lore.kernel.org/qemu-devel/159164739269.20543.3074052993891532749.stgit@naples-babu.amd.com

Babu Moger (3):
      i386: Simplify CPUID_8000_001E for AMD
      hw/i386: Add a new check to configure smp dies for EPYC
      hw/i386: Remove node_id, nr_nodes and nodes_per_pkg from topology


 hw/i386/pc.c               |    1 -
 hw/i386/x86.c              |    8 ++++
 include/hw/i386/topology.h |   40 +++++---------------
 target/i386/cpu.c          |   86 +++++++++++++++++++-------------------------
 target/i386/cpu.h          |    1 -
 5 files changed, 54 insertions(+), 82 deletions(-)

--