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

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

Marek Marczykowski-Górecki posted 4 patches 1 year ago

Diff against v4 v5 v6
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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(-)

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

Posted by Marek Marczykowski-Górecki 1 year ago

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
-- 
git-series 0.9.1