RFC -> v1:
- As per SMMUv3 spec 16.0 (only is_ste_consistant() is noticeable)
- Reworked register access/update logic
- Factored out translation code for
- single point bug fix
- sharing/removal in future
- (optional) Unit tests added, with PCI test device
- S1 with 4k/64k, S1+S2 with 4k/64k
- (S1 or S2) only can be verified by Linux 4.7 driver
- (optional) Priliminary ACPI support
RFC:
- Implements SMMUv3 spec 11.0
- Supported for PCIe devices,
- Command Queue and Event Queue supported
- LPAE only, S1 is supported and Tested, S2 not tested
- BE mode Translation not supported
- IRQ support (legacy, no MSI)
- Tested with DPDK and e1000
Patch 1: Adds SMMUv3 model to QEMU
Multiple files, big ones, translate functionality is split across to
accomodate SMMUv2 model, and to remove when common translation feature
(if) becomes available.
Patch 2: Adds SMMU build support
Patch 3: Some devicetree function to add support for SMMU's multiple interrupt
assignment with names
Patch 4: Adds support in virt.c to create both SMMUv3 device and dts entries
<< optional patches >>
Optional patches are posted for completeness or for those who wants to test.
Patch 5: A simple PCI device which does DMA from 'src' to 'dst' given
src_addr, dst_addr and size, and is used by unit test, uses
pci_dma_read and pci_dma_write in a crude way but serves the purpose.
Patch 6: Current libqos PCI helpers are x86 only, this addes a generic interface
Patch 7: Unit tests for SMMU,
- initializes SMMU device
- initializes Test device
- allocates page tables 1:1 mapping va == pa
- allocates STE/CD accordingly for S1, S2, S1+S2
- initiates DMA via PCI test device
- verifies transfered data
Patch 8: Added ACPI IORT tables, was needed for internal project purpose, but
posting here for anyone looking for testing ACPI on ARM platforms.
(P.S: Linux side IORT patches are WIP)
Repo:
https://github.com/pmallappa/qemu/tree/develop
To Test:
$ make tests/smmuv3-test
$ QTEST_QEMU_BINARY=aarch64-softmmu/qemu-system-aarch64 tests/smmuv3-test
<< expect lot of prints >>
Any comments welcome..
Cheers
/Prem
Prem Mallappa (8):
hw: arm: SMMUv3 emulation model
hw: arm: Added SMMUv3 files for build
devicetree: Added new APIs to make use of more fdt functions
hw: arm: Add SMMUv3 to virt platform, create DTS accordingly
[optional] hw: misc: added testdev for smmu
[optional] tests: libqos: generic pci probing helpers
[optional] tests: SMMUv3 unit tests
[optional] arm: smmu-v3: ACPI IORT initial support
default-configs/aarch64-softmmu.mak | 1 +
device_tree.c | 35 +
hw/arm/Makefile.objs | 1 +
hw/arm/smmu-common.c | 142 ++++
hw/arm/smmu-common.h | 135 ++++
hw/arm/smmu-v3.c | 1461 +++++++++++++++++++++++++++++++++++
hw/arm/smmuv3-internal.h | 417 ++++++++++
hw/arm/virt-acpi-build.c | 43 ++
hw/arm/virt.c | 62 ++
hw/misc/Makefile.objs | 2 +-
hw/misc/pci-testdev-smmu.c | 239 ++++++
hw/misc/pci-testdev-smmu.h | 22 +
include/hw/acpi/acpi-defs.h | 84 ++
include/hw/arm/smmu.h | 33 +
include/hw/arm/virt.h | 2 +
include/sysemu/device_tree.h | 18 +
tests/Makefile.include | 4 +
tests/libqos/pci-generic.c | 197 +++++
tests/libqos/pci-generic.h | 58 ++
tests/smmuv3-test.c | 905 ++++++++++++++++++++++
20 files changed, 3860 insertions(+), 1 deletion(-)
create mode 100644 hw/arm/smmu-common.c
create mode 100644 hw/arm/smmu-common.h
create mode 100644 hw/arm/smmu-v3.c
create mode 100644 hw/arm/smmuv3-internal.h
create mode 100644 hw/misc/pci-testdev-smmu.c
create mode 100644 hw/misc/pci-testdev-smmu.h
create mode 100644 include/hw/arm/smmu.h
create mode 100644 tests/libqos/pci-generic.c
create mode 100644 tests/libqos/pci-generic.h
create mode 100644 tests/smmuv3-test.c
--
2.9.0
