[v3,0/4] MSI-X support with qemu in stubdomain, and other related changes

Message

Marek Marczykowski-Górecki April 6, 2023, 3:57 a.m. UTC

This series includes changes to make MSI-X working with Linux stubdomain and
especially Intel Wifi 6 AX210 card. This takes care of remaining reasons for
QEMU to access /dev/mem, but also the Intel Wifi card violating spec by putting
some registers on the same page as the MSI-X table.

See individual patches for details.

Marek Marczykowski-Górecki (4):
  x86/msi: passthrough all MSI-X vector ctrl writes to device model
  tools/xendevicemodel: Introduce ..._get_ioreq_server_info_ext
  x86/hvm: Allow writes to registers on the same page as MSI-X table
  x86/msi: clear initial MSI-X state on boot

 tools/include/xendevicemodel.h |  23 ++++-
 tools/libs/devicemodel/core.c  |  16 ++-
 xen/arch/x86/hvm/vmsi.c        | 209 ++++++++++++++++++++++++++++++++--
 xen/arch/x86/include/asm/msi.h |   5 +-
 xen/arch/x86/msi.c             |  38 ++++++-
 xen/common/ioreq.c             |   9 +-
 xen/drivers/passthrough/msi.c  |  17 +++-
 xen/include/public/hvm/dm_op.h |  12 +-
 8 files changed, 310 insertions(+), 19 deletions(-)

base-commit: 881ba20eb0222305a9d2cd090c9345992794f4f5