Replace the VIRTIO_IOMMU_F_BYPASS feature with
VIRTIO_IOMMU_F_BYPASS_CONFIG, which enables a config space bit to switch
global bypass on and off.

Add a boot-bypass option, which defaults to 'on' to be in line with
other vIOMMUs and to allow running firmware/bootloader that are unaware
of the IOMMU. x86 doesn't need a workaround to boot with virtio-iommu
anymore.

Since v1 [1]:
* The specification [2] and Linux header [3] changes have been merged
* Patch 1 pulls in the whole Linux header changes, in order to
  get the virtio_iommu.h update
* Reset bypass on system reset, and other fixes suggested by Eric
* Added a simple test, patch 4, that checks the boot bypass value

[1] https://lore.kernel.org/qemu-devel/20210930185050.262759-1-jean-philippe@linaro.org/
[2] https://github.com/oasis-tcs/virtio-spec/issues/119
[3] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=063ebb19d962

Jean-Philippe Brucker (4):
  linux-headers: update to v5.17-rc1
  virtio-iommu: Default to bypass during boot
  virtio-iommu: Support bypass domain
  tests/qtest/virtio-iommu-test: Check bypass config

 include/hw/virtio/virtio-iommu.h              |   1 +
 include/standard-headers/asm-x86/kvm_para.h   |   1 +
 include/standard-headers/drm/drm_fourcc.h     |  11 ++
 include/standard-headers/linux/ethtool.h      |   1 +
 include/standard-headers/linux/fuse.h         |  60 +++++++-
 include/standard-headers/linux/pci_regs.h     | 142 +++++++++---------
 include/standard-headers/linux/virtio_gpio.h  |  72 +++++++++
 include/standard-headers/linux/virtio_i2c.h   |  47 ++++++
 include/standard-headers/linux/virtio_iommu.h |   8 +-
 .../standard-headers/linux/virtio_pcidev.h    |  65 ++++++++
 include/standard-headers/linux/virtio_scmi.h  |  24 +++
 linux-headers/asm-generic/unistd.h            |   5 +-
 linux-headers/asm-mips/unistd_n32.h           |   2 +
 linux-headers/asm-mips/unistd_n64.h           |   2 +
 linux-headers/asm-mips/unistd_o32.h           |   2 +
 linux-headers/asm-powerpc/unistd_32.h         |   2 +
 linux-headers/asm-powerpc/unistd_64.h         |   2 +
 linux-headers/asm-riscv/bitsperlong.h         |  14 ++
 linux-headers/asm-riscv/mman.h                |   1 +
 linux-headers/asm-riscv/unistd.h              |  44 ++++++
 linux-headers/asm-s390/unistd_32.h            |   2 +
 linux-headers/asm-s390/unistd_64.h            |   2 +
 linux-headers/asm-x86/kvm.h                   |  16 +-
 linux-headers/asm-x86/unistd_32.h             |   1 +
 linux-headers/asm-x86/unistd_64.h             |   1 +
 linux-headers/asm-x86/unistd_x32.h            |   1 +
 linux-headers/linux/kvm.h                     |  17 +++
 hw/virtio/virtio-iommu.c                      |  83 +++++++++-
 tests/qtest/virtio-iommu-test.c               |   2 +
 hw/virtio/trace-events                        |   4 +-
 30 files changed, 552 insertions(+), 83 deletions(-)
 create mode 100644 include/standard-headers/linux/virtio_gpio.h
 create mode 100644 include/standard-headers/linux/virtio_i2c.h
 create mode 100644 include/standard-headers/linux/virtio_pcidev.h
 create mode 100644 include/standard-headers/linux/virtio_scmi.h
 create mode 100644 linux-headers/asm-riscv/bitsperlong.h
 create mode 100644 linux-headers/asm-riscv/mman.h
 create mode 100644 linux-headers/asm-riscv/unistd.h

-- 
2.34.1