Re: [Xen-devel] [PATCH v3 6/7] vTPM: Parse envent string from QEMU frontend

[Wei Liu <wei.liu2@xxxxxxxxxx>]

On Tue, Mar 10, 2015 at 08:14:01AM -0400, Quan Xu wrote:
> Signed-off-by: Quan Xu <quan.xu@xxxxxxxxx>
> ---
>  extras/mini-os/tpmback.c | 21 ++++++++++++++++-----
>  1 file changed, 16 insertions(+), 5 deletions(-)
> 
> diff --git a/extras/mini-os/tpmback.c b/extras/mini-os/tpmback.c
> index 8a0a983..b8f4c8f 100644
> --- a/extras/mini-os/tpmback.c
> +++ b/extras/mini-os/tpmback.c
> @@ -732,11 +732,22 @@ static int parse_eventstr(const char* evstr, domid_t* 
> domid, unsigned int* handl
>        return EV_NONE;
>        }
>        return EV_NEWFE;
> -   } else if((ret = sscanf(evstr, "/local/domain/%u/device/vtpm/%u/%40s", 
> &udomid, handle, cmd)) == 3) {
> -      *domid = udomid;
> -      if (!strcmp(cmd, "state"))
> -      return EV_STCHNG;
> -   }
> +
> +    /* vtpm and PV virtual machines */
> +    } else if((ret = sscanf(evstr, "/local/domain/%u/device/vtpm/%u/%40s",
> +                            &udomid, handle, cmd)) == 3) {
> +        *domid = udomid;
> +        if (!strcmp(cmd, "state"))
> +            return EV_STCHNG;
> +
> +    /* HVM virtual machines */
> +    } else if((ret = sscanf(evstr, 
> "/local/domain/0/frontend/vtpm/%u/%u/%40s",

Again, /local/domain/0. :-/

Wei.

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