bios_setting: Add a write handler

Tested:
```
// Test that it writes a new file if it doesn't exist
~# rm /run/oem_bios_setting

// Invalid command (no size / payload)
~# ipmitool raw 0x2e 0x32 0x79

bios_setting: Add a write handler

Tested:
```
// Test that it writes a new file if it doesn't exist
~# rm /run/oem_bios_setting

// Invalid command (no size / payload)
~# ipmitool raw 0x2e 0x32 0x79 0x2b 0x00 0x19
Unable to send RAW command (channel=0x0 netfn=0x2e lun=0x0 cmd=0x32 rsp=0xc7): Request data length invalid

// Invalid command (size doesn't match)
~# ipmitool raw 0x2e 0x32 0x79 0x2b 0x00 0x19 0x01 0x30 0x31
Unable to send RAW command (channel=0x0 netfn=0x2e lun=0x0 cmd=0x32 rsp=0xc7): Request data length invalid

// Command success
~# ipmitool raw 0x2e 0x32 0x79 0x2b 0x00 0x19 0x02 0x30 0x31
79 2b 00 19 02

// Read back
~# ipmitool raw 0x2e 0x32 0x79 0x2b 0x00 0x18
79 2b 00 18 02 30 31
~# cat /run/oem_bios_setting
01~#

// Verify overwrite works (truncates the previous bytes)
~# ipmitool raw 0x2e 0x32 0x79 0x2b 0x00 0x19 0x01 0x33
79 2b 00 19 01
~# cat /run/oem_bios_setting
3~#
~# ipmitool raw 0x2e 0x32 0x79 0x2b 0x00 0x18
79 2b 00 18 01 33
```

Signed-off-by: Brandon Kim <brandonkim@google.com>
Change-Id: I84db782da9b2f121c0a81a855692b5ca25ffda54

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bios_setting: Add a read handler

Tested:
```
~# echo -n "01234567" > /run/oem_bios_setting
~# ipmitool raw 0x2e 0x32 0x79 0x2b 0x00 0x18
79 2b 00 18 08 30 31 32 33 34 35 36 37
~# rm /run/oem_bios_s

bios_setting: Add a read handler

Tested:
```
~# echo -n "01234567" > /run/oem_bios_setting
~# ipmitool raw 0x2e 0x32 0x79 0x2b 0x00 0x18
79 2b 00 18 08 30 31 32 33 34 35 36 37
~# rm /run/oem_bios_setting
~# ipmitool raw 0x2e 0x32 0x79 0x2b 0x00 0x18
Unable to send RAW command (channel=0x0 netfn=0x2e lun=0x0 cmd=0x32 rsp=0xca): Cannot return number of requested data bytes
```

Signed-off-by: Brandon Kim <brandonkim@google.com>
Change-Id: Icde2de4799a751634f56a580351bf10254dd7e4f

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bm_instance: Create a new handler

This OEM handler will get properties from tmpfs to serve over IPMI.

Tested:
~# cat /run/bm-instance/asset-tag
12345
~# ipmitool raw 0x2e 0x32 0x79 0x2b 0x00 0x17 0

bm_instance: Create a new handler

This OEM handler will get properties from tmpfs to serve over IPMI.

Tested:
~# cat /run/bm-instance/asset-tag
12345
~# ipmitool raw 0x2e 0x32 0x79 0x2b 0x00 0x17 0x00
79 2b 00 17 05 31 32 33 34 35
...
...
(Verified this works for all 7 sub commands)

Signed-off-by: Brandon Kim <brandonkim@google.com>
Change-Id: I191b6f4994d91ada49a3332a8e93a3a305561904

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Add new oem command to set accel power mode

Signed-off-by: Gaurav Gandhi <gauravgandhi@google.com>
Change-Id: Ie0b47477b7ae9e8ae206ac0645571a7a79dbda40

all: Use stdplus::print over std::fprintf

Replacing `std::fprintf` with `stdplus::print`.
No logical change.

Tested: Buildable.
Signed-off-by: Michael Shen <gpgpgp@google.com>
Change-Id: I7050885c1

all: Use stdplus::print over std::fprintf

Replacing `std::fprintf` with `stdplus::print`.
No logical change.

Tested: Buildable.
Signed-off-by: Michael Shen <gpgpgp@google.com>
Change-Id: I7050885c13e33244a4128aa519d163fd5b725098

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Add IPMI OEM command LinuxBootDone

Add a new OEM command for LinuxBoot to notify the BMC when it is about
to kexec into the OS. This is intended to give the BMC a chance to
prepare for an untrusted

Add IPMI OEM command LinuxBootDone

Add a new OEM command for LinuxBoot to notify the BMC when it is about
to kexec into the OS. This is intended to give the BMC a chance to
prepare for an untrusted OS, e.g. disable any interfaces it doesn't want
the OS to have access to.

Tested:
Exercised the new OEM command using ipmitool
$ ipmitool raw 0x2e 0x32 0x79 0x2b 0x00 0x11
79 2b 00 11

Change-Id: Ica76d77cdde48cebfbced32d8e7e860b559074e8
Signed-off-by: John Wedig <johnwedig@google.com>

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clang-format: copy latest and re-format

clang-format-16 has some backwards incompatible changes that require
additional settings for best compatibility and re-running the formatter.
Copy the latest

clang-format: copy latest and re-format

clang-format-16 has some backwards incompatible changes that require
additional settings for best compatibility and re-running the formatter.
Copy the latest .clang-format from the docs repository and reformat the
repository.

Change-Id: I0a1783b101aa4e7d4b80fd5e1fc1b2beb86c5caa

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Add ipmi OEM handler to get the BMC mode

The response can indicate one of the BMC mode
below
0 -> Non Bare Metal Mode
1 -> Bare Metal Mode
2 -> Bare Metal Cleaning Mode

The Bare Metal Cleaning Mode

Add ipmi OEM handler to get the BMC mode

The response can indicate one of the BMC mode
below
0 -> Non Bare Metal Mode
1 -> Bare Metal Mode
2 -> Bare Metal Cleaning Mode

The Bare Metal Cleaning Mode is not
yet supported

Tested:

Response in BM Mode

ipmitool raw 0x2e 0x32 0x79 0x2b 0x00 0x10
79 2b 00 14 01

Response in Non-BM Mode

ipmitool raw 0x2e 0x32 0x79 0x2b 0x00 0x10
79 2b 00 14 00

Signed-off-by: Nikhil Namjoshi <nikhilnamjoshi@google.com>
Change-Id: I34474fd04f9aed35bd71725805ed52a5df8ab8c9

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pcie_bifurcation: Fetch bifurcation at a PCIe slot with hardcoded values

This will read a json config and return the bifurcation based on that.
It will read the configure file in a persistent file t

pcie_bifurcation: Fetch bifurcation at a PCIe slot with hardcoded values

This will read a json config and return the bifurcation based on that.
It will read the configure file in a persistent file to see if it is
valid machine config and return the bifurcation information
accordingly.

For example,
If it is valid config, it will return 8x8 for PE1,3,4,6.

Tested:
Unit tests passed.

Physical Tests.

PE0 -> no bifurcation
PE1 -> x8x8

```
$ ipmitool raw 0x2e 0x32 0x79 0x2b 0x00 0x0f 0
79 2b 00 0b 00

$ ipmitool raw 0x2e 0x32 0x79 0x2b 0x00 0x0f 1
79 2b 00 0b 02 08 08
```

Change-Id: I44aefbfb26372f8bc0069343c8a6d07d3cf6f42d
Signed-off-by: Willy Tu <wltu@google.com>

show more ...

Add IPMI interface for CustomAccel service

Change-Id: I28a8976e382b457233ac521e9ab71f75abe029d1
Signed-off-by: Steve Foreman <foremans@google.com>

google-ipmi-sys: Convert input to use std::span<const uint8_t>

Change-Id: I533de34c04e3d2577cb9076add441153b2994c30
Signed-off-by: Willy Tu <wltu@google.com>

google-ipmi-sys: Refactor to use new version of OEM IPMI Handler

Using the new version of ipmi handler provide a higher level wrapper
over the same functionalities. It helps us parse the input and o

google-ipmi-sys: Refactor to use new version of OEM IPMI Handler

Using the new version of ipmi handler provide a higher level wrapper
over the same functionalities. It helps us parse the input and output to
have more control of the input/output we see.

The input and output will be
`std::uint8_t, std::optional<std::vector<uint8_t>>`.

This represents `subcommand` and any input data.

Changes to note,
- all subcommand in the request/response struct are removed. It will be
managed by the wrapper directly.
- Unit tests checking for input with only the subcommand are
removed.
- Move all reply struct to header files to be accessible in unit test.

Tested:
All IPMI OEM command still works the same as before this change.

Change-Id: I4230ab84a497a867248fe82224e32cc69b314b64
Signed-off-by: Willy Tu <wltu@google.com>

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Add Google Copyright 2021

Change-Id: I26020265613218d0c8df85b83772856bfc555e86
Signed-off-by: Willy Tu <wltu@google.com>

treewide: Cleanup pedantic C++ warnings

Change-Id: I9c770506d78bd30dde1903645d9bfe92bceab44d
Signed-off-by: William A. Kennington III <wak@google.com>

Add new google ipmi sys command: SysHostPowerOff

New google ipmi sys command to let the BMC knows host shutdown,
allow host to gracefully shutdown and disable the watchdog with given
time delay.

Si

Add new google ipmi sys command: SysHostPowerOff

New google ipmi sys command to let the BMC knows host shutdown,
allow host to gracefully shutdown and disable the watchdog with given
time delay.

Signed-off-by: Yunyun Lin <linyuny@google.com>
Change-Id: I02171c9cfed57ae5d10d66b515e4ab7ee8856466

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Add OEM command to request flash size

The BMC flash is `/dev/mtd0` and the size can found in
`/sys/class/mtd/mtd0/size`. This OEM command will request that
information with MTDINFO.

Tested:
Success

Add OEM command to request flash size

The BMC flash is `/dev/mtd0` and the size can found in
`/sys/class/mtd/mtd0/size`. This OEM command will request that
information with MTDINFO.

Tested:
Successfully requested the flash size information with ipmitool.

```
cat /sys/class/mtd/mtd0/size
67108864
```
67108864 / 1024 / 1024 = 64MB flash

```
ipmitool raw 0x2e 0x32 0x79 0x2b 0x00 0x09
79 2b 00 09 00 00 00 04
```
Output in little endian.
0x04000000 -> 67108864

Change-Id: Iec1b33503d1166a42ceef4b8491e5c19c3a077fe
Signed-off-by: Willy Tu <wltu@google.com>

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Add sys command for powercycle on host shutdown.

The new command will trigger a power cycle the next time the host shuts
down. This can exist in parallel with the existing mechanism to trigger
a pow

Add sys command for powercycle on host shutdown.

The new command will trigger a power cycle the next time the host shuts
down. This can exist in parallel with the existing mechanism to trigger
a power cycle after a specified time interval.

The implementation of host state detection and power cycling is platfrom
specific; the new command will just add a temporary file that marks the
system ready to powercycle on the next shutdown. Usually, a systemd unit
would be enabled by the presence of this file to handle the power
cycling process.

Signed-off-by: Shounak Mitra <shounak@google.com>
Change-Id: I0cc40307748fb996be3f6062d8cba1a4b5049683

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Add suppport for retrieving machine name

This adds support for reading /etc/os-release, parsing out
OPENBMC_TARGET_MACHINE and returning this to the caller.

Change-Id: If2a419b9a77597686f5137efce97

Add suppport for retrieving machine name

This adds support for reading /etc/os-release, parsing out
OPENBMC_TARGET_MACHINE and returning this to the caller.

Change-Id: If2a419b9a77597686f5137efce97b1150142f181
Signed-off-by: William A. Kennington III <wak@google.com>

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drop unused header: handler_ipml

The ipmi routing handler only needs to know the interface, and not any
specific implementation.

Signed-off-by: Patrick Venture <venture@google.com>
Change-Id: Id761

drop unused header: handler_ipml

The ipmi routing handler only needs to know the interface, and not any
specific implementation.

Signed-off-by: Patrick Venture <venture@google.com>
Change-Id: Id76119ee644f719d18c24f1b97b69557bcceb8fa

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split the commands out

Split the commands out to avoid conflicts in multiple definitions of
IPMI_CC_OK, etc, in a different environment.

Signed-off-by: Patrick Venture <venture@google.com>
Change-I

split the commands out

Split the commands out to avoid conflicts in multiple definitions of
IPMI_CC_OK, etc, in a different environment.

Signed-off-by: Patrick Venture <venture@google.com>
Change-Id: I1f3a0214b4f6f6417a5649b0fc2d297119f8ad88

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move implementation to ipmi file

Move the entrance point for the IPMI OEM handling to a separate file and
pass in the handler pointer via binding.

Signed-off-by: Patrick Venture <venture@google.com

move implementation to ipmi file

Move the entrance point for the IPMI OEM handling to a separate file and
pass in the handler pointer via binding.

Signed-off-by: Patrick Venture <venture@google.com>
Change-Id: I4371ebee1c252ab6e9d8a7ff2389583919ecc996

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