From: Ben Warren <b...@skyportsystems.com>
This patch set adds support for passing a GUID to Windows guests. It is a
re-implementation of previous patch sets written by Igor Mammedov et al, but
this time passing the GUID data as a fw_cfg blob.
This patch set has dependencies on new guest functionality, in particular the
support for a new linker-loader command and the ability to write back data
to QEMU over a DMA link. Work is in flight in both SeaBIOS and OVMF to support
this.
v4->v5:
- Added significantly more detail to the documentation.
- Replaced the previously-implemented linker-loader command with a new one:
"write pointer". This allows writing the guest address of a fw_cfg blob
back
to an arbitrary offset in a writeable fw_cfg file visible to QEMU. This
will
require support in SeaBIOS and OVMF (ongoing).
- Fixed endianness issues throughout.
- Several styling cleanups.
v3->v4:
- Rebased to top of tree.
- Re-added document patch that was accidentally dropped from the last
revision.
- Added VMState functionality so that VGIA is restored properly.
- Added Unit tests
v2->v3:
- Added second writeable fw_cfg for storing the VM Generaiton ID
address. This uses a new linker-loader command for instructing the
guest to write back the allocated address. A patch for SeaBIOS has been
submitted
(https://www.seabios.org/pipermail/seabios/2017-January/011079.html)
and the resulting binary will need to be pulled into QEMU once accepted.
- Setting VM Generation ID by command line or qmp/hmp now accepts an "auto"
value, whereby QEMU generates a random GUID.
- Incorporated review comments from v2 mainly around code styling and AML
syntax
- Changed to use the E05 ACPI event instead of E00
v1->v2:
- Removed "changed" boolean parameter as it is unneeded
- Added ACPI Notify logic
- Style changes to pass checkpatch.pl
- Added support for dynamic sysbus to pc_piix boards
Ben Warren (8):
ACPI: Add a function for building named qword entries
linker-loader: Add new 'write pointer' command
docs: VM Generation ID device description
ACPI: Add vmgenid storage entries to the build tables
ACPI: Add Virtual Machine Generation ID support
PC: Support dynamic sysbus on pc_i440fx
tests: Move reusable ACPI macros into a new header file
tests: Add unit tests for the VM Generation ID feature
Igor Mammedov (2):
qmp/hmp: add query-vm-generation-id and 'info vm-generation-id'
commands
qmp/hmp: add set-vm-generation-id commands
default-configs/i386-softmmu.mak | 1 +
default-configs/x86_64-softmmu.mak | 1 +
docs/specs/vmgenid.txt | 239 +++++++++++++++++++++++++++++++++++
hmp-commands-info.hx | 13 ++
hmp-commands.hx | 13 ++
hmp.c | 21 +++
hmp.h | 2 +
hw/acpi/Makefile.objs | 1 +
hw/acpi/aml-build.c | 39 +++++-
hw/acpi/bios-linker-loader.c | 35 +++--
hw/acpi/nvdimm.c | 2 +-
hw/acpi/vmgenid.c | 238 ++++++++++++++++++++++++++++++++++
hw/arm/virt-acpi-build.c | 4 +-
hw/i386/acpi-build.c | 18 ++-
hw/i386/pc_piix.c | 1 +
include/hw/acpi/acpi_dev_interface.h | 1 +
include/hw/acpi/aml-build.h | 5 +
include/hw/acpi/bios-linker-loader.h | 3 +-
include/hw/acpi/vmgenid.h | 37 ++++++
qapi-schema.json | 31 +++++
stubs/Makefile.objs | 1 +
stubs/vmgenid.c | 14 ++
tests/Makefile.include | 2 +
tests/acpi-utils.h | 75 +++++++++++
tests/bios-tables-test.c | 72 +----------
tests/vmgenid-test.c | 184 +++++++++++++++++++++++++++
26 files changed, 962 insertions(+), 91 deletions(-)
create mode 100644 docs/specs/vmgenid.txt
create mode 100644 hw/acpi/vmgenid.c
create mode 100644 include/hw/acpi/vmgenid.h
create mode 100644 stubs/vmgenid.c
create mode 100644 tests/acpi-utils.h
create mode 100644 tests/vmgenid-test.c
--
2.7.4
