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From: Dongli Zhang <dongli.zhang@oracle.com>
To: qemu-devel@nongnu.org
Cc: berrange@redhat.com, ehabkost@redhat.com, mst@redhat.com,
	jasowang@redhat.com, joe.jin@oracle.com, dgilbert@redhat.com,
	pbonzini@redhat.com
Subject: [PATCH v3 0/3] To add HMP interface to dump PCI MSI-X table/PBA
Date: Tue, 13 Jul 2021 17:47:51 -0700	[thread overview]
Message-ID: <20210714004754.22243-1-dongli.zhang@oracle.com> (raw)

This is v3 to add msix_present() to pci-stub.c to avoid build error.

Changed since RFC v1:
  - Add heading to MSI-X table (suggested by David Alan Gilbert)
  - Add device specific interface, e.g., to dump virtio-pci queue-to-vector
    mapping (Suggested By Jason)

Changed since v2:
  - Add msix_present() to pci-stub.c to avoid build error



This patch is to introduce the new HMP command to dump the MSI-X table/PBA.

Here is the RFC v1:

https://lists.gnu.org/archive/html/qemu-devel/2021-04/msg04673.html

The idea was inspired by below discussion:

https://lists.gnu.org/archive/html/qemu-devel/2021-03/msg09020.html


(qemu) info msix -d /machine/peripheral/vscsi0
Msg L.Addr Msg U.Addr Msg Data   Vect Ctrl
0xfee00000 0x00000000 0x00004041 0x00000000
0xfee00000 0x00000000 0x00004051 0x00000000
0xfee00000 0x00000000 0x00004061 0x00000000
0xfee00000 0x00000000 0x00004071 0x00000000
0xfee01000 0x00000000 0x000040b1 0x00000000
0xfee02000 0x00000000 0x000040c1 0x00000000
0xfee03000 0x00000000 0x000040d1 0x00000000

MSI-X PBA
0 0 0 0 0 0 0

virtio pci vector info:
config: 0
queue 0: 1
queue 1: 2
queue 2: 3
queue 3: 4
queue 4: 5
queue 5: 6


 hmp-commands-info.hx       | 14 +++++++++
 hw/pci/msix.c              | 63 +++++++++++++++++++++++++++++++++++++++++
 hw/pci/pci-stub.c          |  5 ++++
 hw/virtio/virtio-pci.c     | 22 ++++++++++++++
 hw/virtio/virtio.c         | 10 +++++++
 include/hw/pci/msix.h      |  2 ++
 include/hw/pci/pci.h       |  3 ++
 include/hw/virtio/virtio.h |  2 ++
 include/monitor/hmp.h      |  1 +
 softmmu/qdev-monitor.c     | 36 +++++++++++++++++++++++
 10 files changed, 158 insertions(+)

Thank you very much!

Dongli Zhang




             reply	other threads:[~2021-07-14  0:50 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-14  0:47 Dongli Zhang [this message]
2021-07-14  0:47 ` [PATCH v3 1/3] msix/hmp: add hmp interface to dump MSI-X info Dongli Zhang
2021-07-14  5:46   ` Markus Armbruster
2021-07-14  6:17     ` Dongli Zhang
2021-07-14  9:42       ` Markus Armbruster
2021-07-14 15:42         ` Dongli Zhang
2021-07-14  0:47 ` [PATCH v3 2/3] msix/hmp: add interface to dump device specific info Dongli Zhang
2021-07-14  0:47 ` [PATCH v3 3/3] virtio-pci/hmp: implement device specific hmp interface Dongli Zhang

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