[Xen-devel] [RFC XEN PATCH v4 00/41] Add vNVDIMM support to HVM domains

[Haozhong Zhang <haozhong.zhang@xxxxxxxxx>]

All patches can also be found at
  Xen:  https://github.com/hzzhan9/xen.git nvdimm-rfc-v4
  QEMU: https://github.com/hzzhan9/qemu.git xen-nvdimm-rfc-v4

RFC v3 can be found at
  https://lists.xen.org/archives/html/xen-devel/2017-09/msg00964.html

Changes in v4:
  * Move the functionality of management util 'xen-ndctl' to Xne
    management tool 'xl'.
  * Load QEMU ACPI via QEMU fw_cfg and BIOSLinkerLoader interface.
  * Other changes are documented in patches separately.


- Part 0. Bug fix and code cleanup
  [01/41] x86_64/mm: fix the PDX group check in mem_hotadd_check()
  [02/41] x86_64/mm: avoid cleaning the unmapped frame table
  [03/41] hvmloader/util: do not compare characters after '\0' in strncmp

- Part 1. Detect host PMEM
  Detect host PMEM via NFIT. No frametable and M2P table for them are
  created in this part.

  [04/41] xen/common: add Kconfig item for pmem support
  [05/41] x86/mm: exclude PMEM regions from initial frametable
  [06/41] acpi: probe valid PMEM regions via NFIT
  [07/41] xen/pmem: register valid PMEM regions to Xen hypervisor
  [08/41] xen/pmem: hide NFIT and deny access to PMEM from Dom0
  [09/41] xen/pmem: add framework for hypercall XEN_SYSCTL_nvdimm_op
  [10/41] xen/pmem: add XEN_SYSCTL_nvdimm_pmem_get_rgions_nr
  [11/41] xen/pmem: add XEN_SYSCTL_nvdimm_pmem_get_regions
  [12/41] tools/xl: add xl command 'pmem-list'

- Part 2. Setup host PMEM for management and guest data usage
  Allow users or admins in Dom0 to setup host PMEM pages for
  management and guest data usages.
   * Management PMEM pages are used to store the frametable and M2P of
     PMEM pages (including themselves), and never mapped to guest.
   * Guest data PMEM pages can be mapped to guest and used as the
     backend storage of virtual NVDIMM devices.

  [13/41] x86_64/mm: refactor memory_add()
  [14/41] x86_64/mm: allow customized location of extended frametable and M2P 
table
  [15/41] xen/pmem: add XEN_SYSCTL_nvdimm_pmem_setup to setup management PMEM 
region
  [16/41] tools/xl: accept all bases in parse_ulong()
  [17/41] tools/xl: expose parse_ulong()
  [18/41] tools/xl: add xl command 'pmem-setup'
  [19/41] xen/pmem: support PMEM_REGION_TYPE_MGMT for 
XEN_SYSCTL_nvdimm_pmem_get_regions_nr
  [20/41] xen/pmem: support PMEM_REGION_TYPE_MGMT for 
XEN_SYSCTL_nvdimm_pmem_get_regions
  [21/41] tools/xl: add option '--mgmt | -m' to xl command pmem-list
  [22/41] xen/pmem: support setup PMEM region for guest data usage
  [23/41] tools/xl: add option '--data | -d' to xl command pmem-setup
  [24/41] xen/pmem: support PMEM_REGION_TYPE_DATA for 
XEN_SYSCTL_nvdimm_pmem_get_regions_nr
  [25/41] xen/pmem: support PMEM_REGION_TYPE_DATA for 
XEN_SYSCTL_nvdimm_pmem_get_regions
  [26/41] tools/xl: add option '--data | -d' to xl command pmem-list

- Part 3. Hypervisor support to map host PMEM pages to HVM domain
  [27/41] xen/pmem: add function to map PMEM pages to HVM domain
  [28/41] xen/pmem: release PMEM pages on HVM domain destruction
  [29/41] xen: add hypercall XENMEM_populate_pmem_map

- Part 4. Load QEMU ACPI
  Guest NFIT and NVDIMM namespace devices are built by QEMU. This part
  loads QEMU ACPI via QEMU fw_cfg and BIOSLinkerLoader interface. A
  simple blacklist mechanism is added to reject DM ACPI tables that
  may conflict with those built by Xen itself.

  [30/41] tools: reserve extra guest memory for ACPI from device model
  [31/41] tools/libacpi: add callback to translate GPA to GVA
  [32/41] tools/libacpi: build a DM ACPI signature blacklist
  [33/41] tools/libacpi, hvmloader: detect QEMU fw_cfg interface
  [34/41] tools/libacpi: probe QEMU ACPI ROMs via fw_cfg interface
  [35/41] tools/libacpi: add a QEMU BIOSLinkLoader executor
  [36/41] tools/libacpi: add function to get the data of QEMU RSDP
  [37/41] tools/libacpi: load QEMU ACPI

- Part 5. Remaining tool stack changes
  Add xl domain configuration and generate new QEMU options for vNVDIMM.

  [38/41] tools/xl: add xl domain configuration for virtual NVDIMM devices
  [39/41] tools/libxl: allow aborting domain creation on fatal QMP init errors
  [40/41] tools/libxl: initiate PMEM mapping via QMP callback
  [41/41] tools/libxl: build qemu options from xl vNVDIMM configs


 docs/man/xl.cfg.pod.5.in            |  40 ++
 tools/firmware/hvmloader/Makefile   |   4 +-
 tools/firmware/hvmloader/util.c     |  16 +
 tools/firmware/hvmloader/util.h     |  14 +
 tools/flask/policy/modules/dom0.te  |   2 +-
 tools/flask/policy/modules/xen.if   |   3 +-
 tools/libacpi/acpi2_0.h             |   1 +
 tools/libacpi/build.c               | 176 ++++++++-
 tools/libacpi/libacpi.h             |  10 +
 tools/libacpi/qemu.h                |  56 +++
 tools/libacpi/qemu_fw_cfg.c         |  99 +++++
 tools/libacpi/qemu_loader.c         | 392 +++++++++++++++++++
 tools/libacpi/qemu_stub.c           |  64 +++
 tools/libxc/include/xenctrl.h       |  88 +++++
 tools/libxc/xc_domain.c             |  15 +
 tools/libxc/xc_misc.c               | 154 ++++++++
 tools/libxl/Makefile                |   5 +-
 tools/libxl/libxl.h                 |  55 +++
 tools/libxl/libxl_create.c          |   4 +-
 tools/libxl/libxl_dm.c              |  81 +++-
 tools/libxl/libxl_internal.h        |   6 +
 tools/libxl/libxl_nvdimm.c          | 227 +++++++++++
 tools/libxl/libxl_qmp.c             | 138 ++++++-
 tools/libxl/libxl_types.idl         |  49 +++
 tools/libxl/libxl_x86.c             |   7 +-
 tools/libxl/libxl_x86_acpi.c        |  10 +
 tools/xl/Makefile                   |   2 +-
 tools/xl/xl.h                       |   2 +
 tools/xl/xl_cmdtable.c              |  19 +
 tools/xl/xl_nvdimm.c                | 205 ++++++++++
 tools/xl/xl_parse.c                 | 130 +++++-
 tools/xl/xl_parse.h                 |   1 +
 tools/xl/xl_vmcontrol.c             |  15 +-
 xen/arch/x86/acpi/boot.c            |   4 +
 xen/arch/x86/acpi/power.c           |   7 +
 xen/arch/x86/dom0_build.c           |   5 +
 xen/arch/x86/domain.c               |  32 +-
 xen/arch/x86/mm.c                   | 124 +++++-
 xen/arch/x86/setup.c                |   4 +
 xen/arch/x86/shutdown.c             |   3 +
 xen/arch/x86/tboot.c                |   4 +
 xen/arch/x86/x86_64/mm.c            | 302 ++++++++++----
 xen/common/Kconfig                  |   8 +
 xen/common/Makefile                 |   1 +
 xen/common/compat/memory.c          |   1 +
 xen/common/domain.c                 |   3 +
 xen/common/kexec.c                  |   3 +
 xen/common/memory.c                 |  44 +++
 xen/common/pmem.c                   | 761 ++++++++++++++++++++++++++++++++++++
 xen/common/sysctl.c                 |   9 +
 xen/drivers/acpi/Makefile           |   2 +
 xen/drivers/acpi/nfit.c             | 321 +++++++++++++++
 xen/include/acpi/actbl1.h           |  69 ++++
 xen/include/asm-x86/domain.h        |   1 +
 xen/include/asm-x86/mm.h            |  10 +-
 xen/include/public/memory.h         |  14 +-
 xen/include/public/sysctl.h         |  97 ++++-
 xen/include/xen/acpi.h              |  10 +
 xen/include/xen/pmem.h              |  76 ++++
 xen/include/xen/sched.h             |   3 +
 xen/include/xsm/dummy.h             |  11 +
 xen/include/xsm/xsm.h               |  12 +
 xen/xsm/dummy.c                     |   4 +
 xen/xsm/flask/hooks.c               |  17 +
 xen/xsm/flask/policy/access_vectors |   4 +
 65 files changed, 3939 insertions(+), 117 deletions(-)
 create mode 100644 tools/libacpi/qemu.h
 create mode 100644 tools/libacpi/qemu_fw_cfg.c
 create mode 100644 tools/libacpi/qemu_loader.c
 create mode 100644 tools/libacpi/qemu_stub.c
 create mode 100644 tools/libxl/libxl_nvdimm.c
 create mode 100644 tools/xl/xl_nvdimm.c
 create mode 100644 xen/common/pmem.c
 create mode 100644 xen/drivers/acpi/nfit.c
 create mode 100644 xen/include/xen/pmem.h

-- 
2.15.1


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