From: "Michael S. Tsirkin" <mst@redhat.com>
To: Stefan Berger <stefanb@linux.vnet.ibm.com>
Cc: serge@hallyn.com, qemu-devel@nongnu.org, anbang.ruan@cs.ox.ac.uk,
andreas.niederl@iaik.tugraz.at
Subject: Re: [Qemu-devel] [PATCH V11 5/5] Add a TPM Passthrough backend driver implementation
Date: Sun, 2 Oct 2011 13:30:09 +0200 [thread overview]
Message-ID: <20111002113009.GG30747@redhat.com> (raw)
In-Reply-To: <20110928132410.489340755@linux.vnet.ibm.com>
On Wed, Sep 28, 2011 at 09:23:00AM -0400, Stefan Berger wrote:
...
> Some notes about the host TPM:
> The TPM needs to be enabled and activated. If that's not the case one
> has to go through the BIOS/UEFI and enable and activate that TPM for TPM
> commands to work as expected.
> It may be necessary to boot the kernel using tpm_tis.force=1 in the boot
> command line or 'modprobe tpm_tis force=1' in case of using it as a module.
...
> Index: qemu-git.pt/configure
> ===================================================================
> --- qemu-git.pt.orig/configure
> +++ qemu-git.pt/configure
> @@ -3565,6 +3565,9 @@ fi
>
> if test "$tpm" = "yes"; then
> if test "$target_softmmu" = "yes" ; then
> + if test "$linux" = "yes" ; then
> + echo "CONFIG_TPM_PASSTHROUGH=y" >> $config_target_mak
> + fi
I think we might want to make this a configure option
separate from tpm. The number of ways this can fail
might make some vendors want to disable this mode.
> echo "CONFIG_TPM=y" >> $config_host_mak
> fi
> fi
next prev parent reply other threads:[~2011-10-02 11:29 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-09-28 13:22 [Qemu-devel] [PATCH V11 0/5] Qemu Trusted Platform Module (TPM) integration Stefan Berger
2011-09-28 13:22 ` [Qemu-devel] [PATCH V11 1/5] Support for TPM command line options Stefan Berger
2011-09-28 13:22 ` [Qemu-devel] [PATCH V11 2/5] Add TPM (frontend) hardware interface (TPM TIS) to Qemu Stefan Berger
2011-09-28 13:22 ` [Qemu-devel] [PATCH V11 3/5] Add a debug register Stefan Berger
2011-09-28 13:22 ` [Qemu-devel] [PATCH V11 4/5] Build the TPM frontend code Stefan Berger
2011-09-28 13:23 ` [Qemu-devel] [PATCH V11 5/5] Add a TPM Passthrough backend driver implementation Stefan Berger
2011-10-02 11:30 ` Michael S. Tsirkin [this message]
2011-10-02 11:38 ` [Qemu-devel] [PATCH V11 0/5] Qemu Trusted Platform Module (TPM) integration Michael S. Tsirkin
2011-10-02 20:12 ` Stefan Berger
2011-10-02 21:05 ` Michael S. Tsirkin
2011-10-04 18:44 ` [Qemu-devel] [PATCH 6/5] Introduce --enable-tpm-passthrough configure option Stefan Berger
2011-10-04 18:44 ` [Qemu-devel] [PATCH 7/5] Move parsing of filedescriptor into common function Stefan Berger
2011-10-04 18:45 ` [Qemu-devel] [PATCH 8/5] Add fd parameter for TPM passthrough driver Stefan Berger
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