Hello Stefan,
On 06/29/2017 08:01 PM, Stefan Berger wrote:
> TPM 2 does not implement sysfs files for cancellation of commands.
> We therefore use /dev/null for the cancel path passed to QEMU.
>
> Signed-off-by: Stefan Berger <stefanb@xxxxxxxxxxxxxxxxxx>
> ---
> src/util/virtpm.c | 4 +---
> 1 file changed, 1 insertion(+), 3 deletions(-)
>
> diff --git a/src/util/virtpm.c b/src/util/virtpm.c
> index 6d9b065..d5c10da 100644
> --- a/src/util/virtpm.c
> +++ b/src/util/virtpm.c
> @@ -61,9 +61,7 @@ virTPMCreateCancelPath(const char *devpath)
> VIR_FREE(path);
> }
> if (!path)
> - virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
> - _("No usable sysfs TPM cancel file could be "
> - "found"));
> + ignore_value(VIR_STRDUP(path, "/dev/null"));
> } else {
> virReportError(VIR_ERR_INTERNAL_ERROR,
> _("TPM device path %s is invalid"), devpath);
>
Thanks a lot for the patch. Now libvirt does not complain anymore about the
missing cancel file and I could access the host TPM2.0 correctly from guest.
Tested-by: Javier Martinez Canillas <javierm@xxxxxxxxxx>
Best regards,
--
Javier Martinez Canillas
Software Engineer - Desktop Hardware Enablement
Red Hat
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