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[Qemu-devel] [RFC 0/4] AMD IOMMU
From: |
David Kiarie |
Subject: |
[Qemu-devel] [RFC 0/4] AMD IOMMU |
Date: |
Tue, 25 Aug 2015 02:19:25 +0300 |
This series implements basic AMD IOMMU emulation to Qemu
AMD IOMMU emulation.
-This series emulates AMD IOMMU on qemu. It implements the following features
-Translation - 4K pages
-Event logging - particulary fault logging.
-AMD IOMMU, being a convectional PCI device doesn't rely on any other
technology from AMD and hence you can test this patch on l2 guest emulated on
an Intel PC.
-These patches have been tested using the 'ac97' sound device with
QEMU_AUDIO_DRV=alsa and proven to work.
Testing - pretty basic stuff...
On host
#kvm_amd is loaded with nested support by default by anyways :)
-$modprobe -r kvm_amd
$modprobe kvm_amd nested=1
$command to start guest with 'iommu=1' kernel arguments
On the guest
$dmesg | AMD-Vi
AMD-Vi: Enabling IOMMU at 0000:00:00.2 cap 0x40
AMD-Vi: Lazy IO/TLB flushing enabled
$modprobe kvm_amd
$modprobe pci_stub
$lspci -n
01:00.0 0200: 8086:10b9 (rev 06)
$echo "8086 10b9" > /sys/bus/pci/drivers/pci-stub/new_id
$echo 0000:01:00.0 > /sys/bus/pci/devices/0000:01:00.0/driver/unbind
$echo 0000:01:00.0 > /sys/bus/pci/drivers/pci-stub/bind
Assign the device
$/usr/local/bin/qemu-system-x86_64 -m 512 -boot c -net none -hda
/root/ia32e_rhel5u1.img -device pci-assign,host=01:00.0
I guess that's all there is to say. Please test!
asla.
David (4):
hw/core: Prepare for introducing AMD IOMMU
hw/i386: Introduce AMD IOMMU
hw/i386: Introduce IVRS for AMD IOMMU
hw/pci-host: Add AMD IOMMU emulation to q35 and PIIX
hw/core/machine.c | 25 ++
hw/i386/Makefile.objs | 1 +
hw/i386/acpi-build.c | 85 ++++
hw/i386/amd_iommu.c | 993 ++++++++++++++++++++++++++++++++++++++++++++
hw/i386/amd_iommu.h | 298 +++++++++++++
hw/pci-host/piix.c | 11 +
hw/pci-host/q35.c | 11 +
include/hw/acpi/acpi-defs.h | 55 +++
include/hw/boards.h | 2 +
9 files changed, 1481 insertions(+)
create mode 100644 hw/i386/amd_iommu.c
create mode 100644 hw/i386/amd_iommu.h
--
2.1.4
- [Qemu-devel] [RFC 0/4] AMD IOMMU,
David Kiarie <=
- [Qemu-devel] [RFC 1/4] hw/core: Prepare for introducing AMD IOMMU, David Kiarie, 2015/08/24
- [Qemu-devel] [RFC 2/4] hw/i386: Introduce AMD IOMMU, David Kiarie, 2015/08/24
- Re: [Qemu-devel] [RFC 2/4] hw/i386: Introduce AMD IOMMU, Valentine Sinitsyn, 2015/08/25
- Re: [Qemu-devel] [RFC 2/4] hw/i386: Introduce AMD IOMMU, David kiarie, 2015/08/25
- Re: [Qemu-devel] [RFC 2/4] hw/i386: Introduce AMD IOMMU, Valentine Sinitsyn, 2015/08/25
- Re: [Qemu-devel] [RFC 2/4] hw/i386: Introduce AMD IOMMU, David kiarie, 2015/08/25
- Re: [Qemu-devel] [RFC 2/4] hw/i386: Introduce AMD IOMMU, David kiarie, 2015/08/25
- Re: [Qemu-devel] [RFC 2/4] hw/i386: Introduce AMD IOMMU, Valentine Sinitsyn, 2015/08/25
[Qemu-devel] [RFC 3/4] hw/i386: Introduce IVRS for AMD IOMMU, David Kiarie, 2015/08/24
[Qemu-devel] [RFC 4/4] hw/pci-host: Add AMD IOMMU emulation to q35 and PIIX, David Kiarie, 2015/08/24