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[PATCH v4 0/3] To add HMP interface to dump PCI MSI-X table/PBA
From: |
Dongli Zhang |
Subject: |
[PATCH v4 0/3] To add HMP interface to dump PCI MSI-X table/PBA |
Date: |
Wed, 14 Jul 2021 09:56:51 -0700 |
This is v4 to rework commit message to explain why only HMP.
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
Changed since v3:
- Rework commit message to explain why only HMP (suggested by Markus
Armbruster)
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
- [PATCH v4 0/3] To add HMP interface to dump PCI MSI-X table/PBA,
Dongli Zhang <=