[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [V11 0/4] AMD IOMMU
From: |
David Kiarie |
Subject: |
[Qemu-devel] [V11 0/4] AMD IOMMU |
Date: |
Sun, 22 May 2016 13:21:50 +0300 |
Hi all,
This patches series adds basic AMD IOMMU emulation support to Qemu. It's
currently in it's 11th version.
Michael(or any other person who can merge this patchset) can you please look at
the possibility of merging this patches ?Are there more issues with these
patches since the last version barely attracted any comments ?
Changes since V10 include
-Support for huge pages including some obscure AMD IOMMU feature that allows
default page size override[Jan].
-Fixed an issue with generation of interrupts. We noted that AMD IOMMU has
BusMaster- and is therefore not able to generate interrupts like any other PCI
device. We have resulted in writing directly to system address but this could
be fixed by some patches which have not been merged yet.
Changes since v9
-amd_iommu prefixes have been renamed to a shorter 'amdvi' both in the macros
and in the functions/code. The register macros have not been moved to the
implementation file since almost the macros there are basically macros and
I
reckoned renaming them should suffice.
-taken care of byte order in the use of 'dma_memory_read'[Michael]
-Taken care of invalid DTE entries which is still subject discussion. I will
make any necessary changes based on discusion outcome.[Jan]
-An issue with the emulate IOMMU defaulting to AMD_IOMMU has be fixed[Marcel]
You can test this patches by starting with parameters
qemu-system-x86_64 -M q35,iommu=on,x-iommu-type=amd -m 2G -enable-kvm -smp
4 -cpu host -hda file.img -soundhw ac97
emulating whatever devices you want.
Not passing any command line parameters to linux should be enough to test this
patches since the devices are basically
passes-through but to the 'host' (l1 guest). You can still go ahead pass
command line parameter 'iommu=pt iommu=1'
and try to pass a device to L2 guest. This can also done without passing any
iommu related parameters to the kernel.
David Kiarie (4):
hw/i386: Introduce AMD IOMMU
hw/i386: ACPI IVRS table
hw/core: provision for overriding emulated IOMMU
hw/pci-host: Emulate AMD IOMMU
hw/acpi/aml-build.c | 2 +-
hw/core/machine.c | 29 +-
hw/i386/Makefile.objs | 1 +
hw/i386/acpi-build.c | 93 ++-
hw/i386/amd_iommu.c | 1401 +++++++++++++++++++++++++++++++++++++++++
hw/i386/amd_iommu.h | 340 ++++++++++
hw/pci-host/q35.c | 25 +-
include/hw/acpi/acpi-defs.h | 13 +
include/hw/acpi/aml-build.h | 1 +
include/hw/boards.h | 7 +
include/hw/i386/intel_iommu.h | 1 +
include/hw/pci/pci.h | 2 +
qemu-options.hx | 7 +-
util/qemu-config.c | 8 +-
14 files changed, 1908 insertions(+), 22 deletions(-)
create mode 100644 hw/i386/amd_iommu.c
create mode 100644 hw/i386/amd_iommu.h
--
2.1.4
- [Qemu-devel] [V11 0/4] AMD IOMMU,
David Kiarie <=