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From: Eduardo Habkost <ehabkost@redhat.com>
To: qemu-devel@nongnu.org
Cc: Peter Krempa <pkrempa@redhat.com>,
	Eduardo Habkost <ehabkost@redhat.com>,
	Like Xu <like.xu@linux.intel.com>,
	"Michael S. Tsirkin" <mst@redhat.com>,
	Igor Mammedov <imammedo@redhat.com>,
	Paolo Bonzini <pbonzini@redhat.com>,
	Richard Henderson <rth@twiddle.net>
Subject: [Qemu-devel] [PATCH 0/3] pc: Fix die-id validation and compatibility with libvirt
Date: Thu, 15 Aug 2019 15:38:00 -0300	[thread overview]
Message-ID: <20190815183803.13346-1-ehabkost@redhat.com> (raw)

Currently, if die-id is omitted on -device for CPUs, we get a
very confusing error message:

  $ qemu-system-x86_64 -smp 1,sockets=6,maxcpus=6 \
    -device qemu64-x86_64-cpu,socket-id=1,core-id=0,thread-id=0
  qemu-system-x86_64: -device qemu64-x86_64-cpu,socket-id=1,core-id=0,thread-id=0: \
    Invalid CPU die-id: 4294967295 must be in range 0:5

This has 3 problems

1) The actual range for die-id is 0:0.
   This is fixed by patch 1/3.
2) The user didn't specify die-id=4294967295.
   This is fixed by patch 2/3.
3) It breaks compatibility with libvirt because die-id was not
   mandatory before.
   This is addressed by patch 3/3.

Issues #1 and #2 were reported at:
https://bugzilla.redhat.com/show_bug.cgi?id=1741151

Issue #3 was reported at:
https://bugzilla.redhat.com/show_bug.cgi?id=1741451

Cc: Like Xu <like.xu@linux.intel.com>
Cc: Peter Krempa <pkrempa@redhat.com>
Cc: Igor Mammedov <imammedo@redhat.com>

Eduardo Habkost (3):
  pc: Fix error message on die-id validation
  pc: Improve error message when die-id is omitted
  pc: Don't make CPU properties mandatory unless necessary

 hw/i386/pc.c                             | 23 ++++++++-
 tests/acceptance/pc_cpu_hotplug_props.py | 59 ++++++++++++++++++++++++
 2 files changed, 81 insertions(+), 1 deletion(-)
 create mode 100644 tests/acceptance/pc_cpu_hotplug_props.py

-- 
2.21.0



             reply	other threads:[~2019-08-15 18:41 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-15 18:38 Eduardo Habkost [this message]
2019-08-15 18:38 ` [Qemu-devel] [PATCH 1/3] pc: Fix error message on die-id validation Eduardo Habkost
2019-08-15 20:04   ` Vanderson Martins do Rosario
2019-08-16  1:04   ` Like Xu
2019-08-16 13:49     ` Eduardo Habkost
2019-08-19  0:53       ` Like Xu
2019-08-16  6:06   ` Markus Armbruster
2019-08-16 14:04   ` Igor Mammedov
2019-08-15 18:38 ` [Qemu-devel] [PATCH 2/3] pc: Improve error message when die-id is omitted Eduardo Habkost
2019-08-15 20:11   ` Vanderson Martins do Rosario
2019-08-16 14:06   ` Igor Mammedov
2019-08-15 18:38 ` [Qemu-devel] [PATCH 3/3] pc: Don't make CPU properties mandatory unless necessary Eduardo Habkost
2019-08-16  6:10   ` Markus Armbruster
2019-08-16  7:49     ` Erik Skultety
2019-08-16 12:22       ` Markus Armbruster
2019-08-16 17:42         ` Eduardo Habkost
2019-08-16 21:07           ` Yash Mankad
2019-08-20 21:06             ` Eduardo Habkost
2019-08-17  5:34           ` Markus Armbruster
2019-08-16 16:49     ` Eduardo Habkost
2019-08-16 13:20   ` Igor Mammedov
2019-08-16 16:56     ` Eduardo Habkost
2019-08-17  6:17       ` Markus Armbruster
2019-08-26 14:51         ` Igor Mammedov
2019-08-27 16:15           ` Markus Armbruster
2019-08-28 15:27             ` Igor Mammedov
2019-08-19 19:19 ` [Qemu-devel] [PATCH 0/3] pc: Fix die-id validation and compatibility with libvirt Michael S. Tsirkin

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