Stefan Berger 92dcc234ec Add support for cancelling of a TPM command ... This patch adds support for cancelling an executing TPM command. In Linux for example a user can cancel a command through the TPM's sysfs 'cancel' entry using echo "1" > /sysfs/class/misc/tpm0/device/cancel This patch propagates the cancellation of a command inside a VM to the host TPM's sysfs entry. It also uses the possibility to cancel the command before QEMU VM shutdown or reboot, which helps in preventing QEMU from hanging while waiting for the completion of the command. To relieve higher layers or users from having to determine the TPM's cancel sysfs entry, the driver searches for the entry in well known locations. Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com> Reviewed-by: Corey Bryant <coreyb@linux.vnet.ibm.com> Reviewed-by: Joel Schopp <jschopp@linux.vnet.ibm.com> Message-id: 1361987275-26289-7-git-send-email-stefanb@linux.vnet.ibm.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>		2013-03-12 13:40:55 -05:00
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Makefile.objs	Add a TPM Passthrough backend driver implementation	2013-03-12 13:40:55 -05:00
tpm.c	Add a TPM Passthrough backend driver implementation	2013-03-12 13:40:55 -05:00
tpm_backend.c	Add a TPM Passthrough backend driver implementation	2013-03-12 13:40:55 -05:00
tpm_backend.h	Add a TPM Passthrough backend driver implementation	2013-03-12 13:40:55 -05:00
tpm_int.h	Add a TPM Passthrough backend driver implementation	2013-03-12 13:40:55 -05:00
tpm_passthrough.c	Add support for cancelling of a TPM command	2013-03-12 13:40:55 -05:00
tpm_tis.c	Add a debug register	2013-03-12 13:40:12 -05:00
tpm_tis.h	Support for TPM command line options	2013-03-12 13:40:11 -05:00