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virtio, pc: fixes and features

Browse source 
nvdimm hotplug support
 virtio migration and ioeventfd rework
 virtio crypto device
 ipmi fixes
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging

virtio, pc: fixes and features

nvdimm hotplug support
virtio migration and ioeventfd rework
virtio crypto device
ipmi fixes

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

# gpg: Signature made Tue 01 Nov 2016 05:23:40 PM GMT
# gpg:                using RSA key 0x281F0DB8D28D5469
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>"
# gpg:                 aka "Michael S. Tsirkin <mst@redhat.com>"
# Primary key fingerprint: 0270 606B 6F3C DF3D 0B17  0970 C350 3912 AFBE 8E67
#      Subkey fingerprint: 5D09 FD08 71C8 F85B 94CA  8A0D 281F 0DB8 D28D 5469

* remotes/mst/tags/for_upstream: (47 commits)
  acpi: fix assert failure caused by commit 35c5a52d
  acpi/ipmi: Initialize the fwinfo before fetching it
  ipmi: Add graceful shutdown handling to the external BMC
  ipmi: fix build config variable name for ipmi_bmc_extern.o
  ipmi: Implement shutdown via ACPI overtemp
  ipmi: chassis poweroff should use qemu_system_shutdown_request()
  ipmi_bmc_sim: Remove an unnecessary mutex
  ipmi: Remove hotplug from IPMI BMCs
  pc: memhp: enable nvdimm device hotplug
  nvdimm acpi: introduce _FIT
  nvdimm acpi: introduce fit buffer
  nvdimm acpi: prebuild nvdimm devices for available slots
  nvdimm acpi: use common macros instead of magic names
  acpi nvdimm: rename result_size to dsm_out_buf_siz
  nvdimm acpi: compile nvdimm acpi code arch-independently
  acpi nvdimm: fix Arg6 usage
  acpi nvdimm: fix ARG3 conflict
  acpi nvdimm: fix device physical address base
  acpi nvdimm: fix OperationRegion definition
  acpi nvdimm: fix wrong buffer size returned by DSM method
  ...

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Stefan Hajnoczi 2016-11-03 14:41:53 +00:00
commit c2a4b384f5
48 changed files with 3361 additions and 516 deletions
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3
docs/specs/acpi_mem_hotplug.txt
View file

@ -4,6 +4,9 @@ QEMU<->ACPI BIOS memory hotplug interface
ACPI BIOS GPE.3 handler is dedicated for notifying OS about memory hot-add
and hot-remove events.
ACPI BIOS GPE.4 handler is dedicated for notifying OS about nvdimm device
hot-add and hot-remove events.
Memory hot-plug interface (IO port 0xa00-0xa17, 1-4 byte access):
---------------------------------------------------------------
0xa00:

58
docs/specs/acpi_nvdimm.txt
View file

@ -127,6 +127,58 @@ _DSM process diagram:
| result from the page | | |
+--------------------------+ +--------------+
_FIT implementation
-------------------
TODO (will fill it when nvdimm hotplug is introduced)
Device Handle Reservation
-------------------------
As we mentioned above, byte 0 ~ byte 3 in the DSM memory save NVDIMM device
handle. The handle is completely QEMU internal thing, the values in range
[0, 0xFFFF] indicate nvdimm device (O means nvdimm root device named NVDR),
other values are reserved by other purpose.
Current reserved handle:
0x10000 is reserved for QEMU internal DSM function called on the root
device.
QEMU internal use only _DSM function
------------------------------------
UUID, 648B9CF2-CDA1-4312-8AD9-49C4AF32BD62, is reserved for QEMU internal
DSM function.
There is the function introduced by QEMU and only used by QEMU internal.
1) Read FIT
As we only reserved one page for NVDIMM ACPI it is impossible to map the
whole FIT data to guest's address space. This function is used by _FIT
method to read a piece of FIT data from QEMU.
Input parameters:
Arg0 – UUID {set to 648B9CF2-CDA1-4312-8AD9-49C4AF32BD62}
Arg1 – Revision ID (set to 1)
Arg2 - Function Index, 0x1
Arg3 - A package containing a buffer whose layout is as follows:
+----------+-------------+-------------+-----------------------------------+
| Filed | Byte Length | Byte Offset | Description |
+----------+-------------+-------------+-----------------------------------+
| offset | 4 | 0 | the offset of FIT buffer |
+----------+-------------+-------------+-----------------------------------+
Output:
+----------+-------------+-------------+-----------------------------------+
| Filed | Byte Length | Byte Offset | Description |
+----------+-------------+-------------+-----------------------------------+
| | | | return status codes |
| | | | 0x100 indicates fit has been |
| status | 4 | 0 | updated |
| | | | other follows Chapter 3 in DSM |
| | | | Spec Rev1 |
+----------+-------------+-------------+-----------------------------------+
| fit data | Varies | 4 | FIT data |
| | | | |
+----------+-------------+-------------+-----------------------------------+
The FIT offset is maintained by the caller itself, current offset plugs
the length returned by the function is the next offset we should read.
When all the FIT data has been read out, zero length is returned.
If it returns 0x100, OSPM should restart to read FIT (read from offset 0
again).