Re: [PATCH v3 06/14] tpm-sysbus: add plug handler for TPM on SysBus

[Stefan Berger <stefanb@linux.ibm.com>]

On 10/30/23 12:55, Joelle van Dyne wrote:
> I was debating what to add. I couldn't find a project-wide template
> for what the header should be and I couldn't copy/paste from where I
> copied the code from (virt.c) because it names a specific author that
> I'm not sure wrote this code... Any advice?

I would follow the files in hw/tpm/*.c and use those as templates with

- name of file and short description

- Copyright

- Author(s)

- 2 sentences about the license

- Maybe a longer description.


>
> On Mon, Oct 30, 2023 at 9:52 AM Stefan Berger <stefanb@linux.ibm.com> wrote:
>>
>> On 10/29/23 02:03, Joelle van Dyne wrote:
>>> TPM needs to know its own base address in order to generate its DSDT
>>> device entry.
>>>
>>> Signed-off-by: Joelle van Dyne <j@getutm.app>
>>> ---
>>>    include/sysemu/tpm.h |  4 ++++
>>>    hw/tpm/tpm-sysbus.c  | 33 +++++++++++++++++++++++++++++++++
>>>    hw/tpm/meson.build   |  1 +
>>>    3 files changed, 38 insertions(+)
>>>    create mode 100644 hw/tpm/tpm-sysbus.c
>>>
>>> diff --git a/include/sysemu/tpm.h b/include/sysemu/tpm.h
>>> index 1ee568b3b6..ffd300e607 100644
>>> --- a/include/sysemu/tpm.h
>>> +++ b/include/sysemu/tpm.h
>>> @@ -12,6 +12,8 @@
>>>    #ifndef QEMU_TPM_H
>>>    #define QEMU_TPM_H
>>>
>>> +#include "qemu/osdep.h"
>>> +#include "exec/hwaddr.h"
>>>    #include "qapi/qapi-types-tpm.h"
>>>    #include "qom/object.h"
>>>
>>> @@ -78,6 +80,8 @@ static inline TPMVersion tpm_get_version(TPMIf *ti)
>>>        return TPM_IF_GET_CLASS(ti)->get_version(ti);
>>>    }
>>>
>>> +void tpm_sysbus_plug(TPMIf *tpmif, Object *pbus, hwaddr pbus_base);
>>> +
>>>    #else /* CONFIG_TPM */
>>>
>>>    #define tpm_init()  (0)
>>> diff --git a/hw/tpm/tpm-sysbus.c b/hw/tpm/tpm-sysbus.c
>>> new file mode 100644
>>> index 0000000000..ef0592b837
>>> --- /dev/null
>>> +++ b/hw/tpm/tpm-sysbus.c
>>> @@ -0,0 +1,33 @@
>> A header in this new file would be good. Otherwise LGTM.
>>
>>     Stefan
>>
>>> +#include "sysemu/tpm.h"
>>> +#include "hw/platform-bus.h"
>>> +#include "hw/sysbus.h"
>>> +#include "qapi/error.h"
>>
>>