Here is the port of MSI-X support patches to upstream qemu.
Please comment or commit.
This patchset adds generic support for MSI-X, adds implementation in
APIC, and uses MSI-X in virtio-net.
Changelog:
- since v3
call to resize_region on load
split patches a bit differently to address style comments by Glauber
update commit message to clarify what msix_support flag does
- since v2
rename mask -> wmask to avoid conflict with work by Yamahata
- since v1
At Paul's suggestion, use stl_phy to decouple APIC and MSI-X
implementation
This uses the mask table patch that I posted previously, and which is
included in the series.
--
MST
Michael S. Tsirkin (13):
qemu: make default_write_config use mask table
qemu: capability bits in pci save/restore
qemu: add routines to manage PCI capabilities
qemu: helper routines for pci access
qemu: MSI-X support functions
qemu: add flag to disable MSI-X by default
qemu: minimal MSI/MSI-X implementation for PC
qemu: add support for resizing regions
qemu: virtio support for many interrupt vectors
qemu: MSI-X support in virtio PCI
qemu: request 3 vectors in virtio-net
qemu: virtio save/load bindings
qemu: add pci_get/set_byte
Makefile.target | 2 +-
hw/apic.c | 43 +++++-
hw/msix.c | 420 ++++++++++++++++++++++++++++++++++++++++++++++++++++
hw/msix.h | 35 +++++
hw/pci.c | 295 ++++++++++++++++++++-----------------
hw/pci.h | 105 +++++++++++++-
hw/syborg_virtio.c | 13 ++-
hw/virtio-net.c | 1 +
hw/virtio-pci.c | 216 ++++++++++++++++++++++-----
hw/virtio.c | 70 ++++++---
hw/virtio.h | 14 ++-
qemu-options.hx | 2 +
vl.c | 3 +
13 files changed, 1005 insertions(+), 214 deletions(-)
create mode 100644 hw/msix.c
create mode 100644 hw/msix.h
