Re: [PATCH v3 5/5] tpm: Return QMP error when TPM is disabled in build

[Philippe Mathieu-Daudé]

On 6/14/21 10:09 PM, Philippe Mathieu-Daudé wrote:
> When the management layer queries a binary built using --disable-tpm
> for TPM devices, it gets confused by getting empty responses:
> 
>   { "execute": "query-tpm" }
>   {
>       "return": [
>       ]
>   }
>   { "execute": "query-tpm-types" }
>   {
>       "return": [
>       ]
>   }
>   { "execute": "query-tpm-models" }
>   {
>       "return": [
>       ]
>   }
> 
> To make it clearer by returning an error:
> - Make the TPM QAPI schema conditional
> - Adapt the HMP command
> - Remove stubs which became unnecessary
> 
> The management layer now gets a 'CommandNotFound' error:
> 
>   { "execute": "query-tpm" }
>   {
>       "error": {
>           "class": "CommandNotFound",
>           "desc": "The command query-tpm has not been found"
>       }
>   }
> 
> Suggested-by: Marc-André Lureau <marcandre.lureau@redhat.com>
> Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
> ---
>  qapi/tpm.json      | 28 +++++++++++++++++++---------
>  monitor/hmp-cmds.c |  4 ++++
>  stubs/tpm.c        | 25 -------------------------
>  stubs/meson.build  |  1 -
>  4 files changed, 23 insertions(+), 35 deletions(-)
>  delete mode 100644 stubs/tpm.c

Grrrr I forgot to commit:

-- >8 --
diff --git a/MAINTAINERS b/MAINTAINERS
index 7d9cd290426..636bf2f5365 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2707,7 +2707,6 @@ TPM
 M: Stefan Berger <stefanb@linux.ibm.com>
 S: Maintained
 F: tpm.c
-F: stubs/tpm.c
 F: hw/tpm/*
 F: include/hw/acpi/tpm.h
 F: include/sysemu/tpm*
---