Re: [Xen-devel] [PATCH RFC 00/20] Make ACPI builder available to components other than hvmloader

[Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>]

On 04/05/2016 09:25 PM, Boris Ostrovsky wrote:
> This is an RFC for making hvmloader's ACPI builder available to both the
> toolstack and the hypervisor, as discussed in
> http://lists.xenproject.org/archives/html/xen-devel/2016-02/msg01228.html

When do people think they will get a chance to comment on this? Should
this wait until after 4.7 is released?


Thanks.
-boris


> The series
> * Removes dependency of today's builder on hvmloader interfaces
> * Makes many of the tables built optionally.
> * Moves tools/hvmloader/acpi directory to xen/common/libacpi
> * Builds tables for PVHv2 domU guests in libxc
>
> There is still a number of questions about this implementation, thus it's
> an RFC. Examples of things that need to be discussed are
>
> * ACPI tables are built for PVHv2 guests unconditionally. We probably want
>   to make this an option.
> * Not sure about header files, especially xen/common/libacpi/x86.h and 
>   tools/firmware/hvmloader/{stdio.h,string.h} 
> * The builder is compiled into the hypervisor even though currently
>   there are no users (PVHv2 dom0 will be the one)
> * Patch 19 is somewhat of a spec violation
> * Makefiles are questionable
> * May need changes to guests' e820 map
>
> This is also available from 
> git://oss.oracle.com/git/bostrovs/xen.git:acpi_rfc.
>
> It has been tested with Linux PVHv2 (and I believe Roger tested an earlier
> version with FreeBSD). No passthrough testing has been done.
>
> (I realize that many people are busy because of Friday's freeze but I figured 
> I'd
> post it now in the hope that this may get some reading so that we can talk 
> about
> it at the hackathon)
>
>
> Boris Ostrovsky (20):
>   hvmloader: Provide hvmloader_acpi_build_tables()
>   acpi/hvmloader: Move acpi_info initialization out of ACPI code
>   acpi/hvmloader: Initialize vm_gid data outside ACPI code
>   acpi/hvmloader: Decide which SSDTs to build in hvmloader
>   acpi/hvmloader: Move passthrough initialization from ACPI code
>   acpi/hvmloader: Collect processor and NUMA info in hvmloader
>   acpi/hvmloader: Set TIS header address in hvmloader
>   acpi/hvmloader: Make providing IOAPIC in MADT optional
>   acpi/hvmloader: Build WAET optionally
>   acpi/hvmloader: Provide address of acpi_info as an argument to ACPI
>     code
>   acpi/hvmloader: Translate all addresses when assigning addresses in
>     ACPI tables
>   acpi/hvmloader: Link ACPI object files directly
>   acpi/hvmloader: Add stdio.h, string.h and x86.h
>   acpi/hvmloader: Replace mem_alloc() and virt_to_phys() with memory ops
>   acpi: Move ACPI code to xen/common/libacpi
>   x86/vlapic: Don't try to accept 8259 interrupt if !has_vpic()
>   x86: Allow LAPIC-only emulation_flags for HVM guests
>   libxc/acpi: Build ACPI tables for HVMlite guests
>   acpi: Set HW_REDUCED_ACPI in FADT if IOAPIC is not supported
>   acpi: Make ACPI builder available to hypervisor code
>
>  .gitignore                                         |   8 +-
>  tools/firmware/hvmloader/Makefile                  |  16 +-
>  tools/firmware/hvmloader/config.h                  |  13 +-
>  tools/firmware/hvmloader/hvmloader.c               |   3 +-
>  tools/firmware/hvmloader/mp_tables.c               |   1 +
>  tools/firmware/hvmloader/ovmf.c                    |   4 +-
>  tools/firmware/hvmloader/pci.c                     |   1 +
>  tools/firmware/hvmloader/pir.c                     |   1 +
>  tools/firmware/hvmloader/rombios.c                 |   4 +-
>  tools/firmware/hvmloader/seabios.c                 |   4 +-
>  tools/firmware/hvmloader/smbios.c                  |   1 +
>  tools/firmware/hvmloader/smp.c                     |   1 +
>  tools/firmware/hvmloader/stdio.h                   |   7 +
>  tools/firmware/hvmloader/string.h                  |   7 +
>  tools/firmware/hvmloader/util.c                    |  85 +++++
>  tools/firmware/hvmloader/util.h                    |   6 +-
>  tools/firmware/rombios/32bit/Makefile              |   2 +-
>  tools/firmware/rombios/32bit/tcgbios/Makefile      |   2 +-
>  tools/firmware/rombios/32bit/util.h                |   2 +-
>  tools/libxc/Makefile                               |  22 +-
>  tools/libxc/include/xc_dom.h                       |   1 +
>  tools/libxc/xc_acpi.c                              | 268 +++++++++++++
>  tools/libxc/xc_dom_x86.c                           |   7 +
>  tools/libxl/libxl_x86.c                            |  19 +-
>  xen/arch/x86/domain.c                              |  26 +-
>  xen/arch/x86/hvm/vlapic.c                          |   3 +
>  xen/common/Makefile                                |   2 +-
>  .../hvmloader/acpi => xen/common/libacpi}/Makefile |  33 +-
>  .../hvmloader/acpi => xen/common/libacpi}/README   |   0
>  .../acpi => xen/common/libacpi}/acpi2_0.h          |  66 +++-
>  .../hvmloader/acpi => xen/common/libacpi}/build.c  | 415 
> ++++++++++-----------
>  .../hvmloader/acpi => xen/common/libacpi}/dsdt.asl |   0
>  xen/common/libacpi/dsdt_empty.asl                  |  22 ++
>  .../acpi => xen/common/libacpi}/mk_dsdt.c          |   4 +
>  .../acpi => xen/common/libacpi}/ssdt_pm.asl        |   0
>  .../acpi => xen/common/libacpi}/ssdt_s3.asl        |   0
>  .../acpi => xen/common/libacpi}/ssdt_s4.asl        |   0
>  .../acpi => xen/common/libacpi}/ssdt_tpm.asl       |   0
>  .../acpi => xen/common/libacpi}/static_tables.c    |   1 -
>  xen/common/libacpi/x86.h                           |  14 +
>  40 files changed, 794 insertions(+), 277 deletions(-)
>  create mode 100644 tools/firmware/hvmloader/stdio.h
>  create mode 100644 tools/firmware/hvmloader/string.h
>  create mode 100644 tools/libxc/xc_acpi.c
>  rename {tools/firmware/hvmloader/acpi => xen/common/libacpi}/Makefile (70%)
>  rename {tools/firmware/hvmloader/acpi => xen/common/libacpi}/README (100%)
>  rename {tools/firmware/hvmloader/acpi => xen/common/libacpi}/acpi2_0.h (84%)
>  rename {tools/firmware/hvmloader/acpi => xen/common/libacpi}/build.c (58%)
>  rename {tools/firmware/hvmloader/acpi => xen/common/libacpi}/dsdt.asl (100%)
>  create mode 100644 xen/common/libacpi/dsdt_empty.asl
>  rename {tools/firmware/hvmloader/acpi => xen/common/libacpi}/mk_dsdt.c (99%)
>  rename {tools/firmware/hvmloader/acpi => xen/common/libacpi}/ssdt_pm.asl 
> (100%)
>  rename {tools/firmware/hvmloader/acpi => xen/common/libacpi}/ssdt_s3.asl 
> (100%)
>  rename {tools/firmware/hvmloader/acpi => xen/common/libacpi}/ssdt_s4.asl 
> (100%)
>  rename {tools/firmware/hvmloader/acpi => xen/common/libacpi}/ssdt_tpm.asl 
> (100%)
>  rename {tools/firmware/hvmloader/acpi => xen/common/libacpi}/static_tables.c 
> (99%)
>  create mode 100644 xen/common/libacpi/x86.h
>


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