On Thu, Apr 16, 2015 at 03:35:06PM +0200, Igor Mammedov wrote: > On Wed, 15 Apr 2015 18:38:43 -0400 > Stefan Berger <stef...@linux.vnet.ibm.com> wrote: > > > The following series of patches extends TPM support with an > > external TPM that offers a Linux CUSE (character device in userspace) > > interface. This TPM lets each VM access its own private vTPM. > > The CUSE TPM supports suspend/resume and migration. Much > > out-of-band functionality necessary to control the CUSE TPM is > > implemented using ioctl's. > > > > The series extends the TPM support so far that most functionality of > > TPM support on a physical platform is now available to each x86 VM, > > this includes the Physical Presence Interface support that has > > its counter-part in the SeaBIOS and is implemented using ACPI. > > > > http://www.seabios.org/pipermail/seabios/2015-March/008978.html > is it already merged? > > Is it possible to use MMIO region instead of allocating tpm_ppi_anchor > and tpm_ppi in BIOS memory? > That would simplify BIOS part a bit and significantly simplify ACPI code > as most of it is dealing with figuring out address of tpm_ppi.
Which (if it works) I guess brings us back to the idea of using a pci device with a bar where we can stick tpm+vm id+whatever? > > > > > > Stefan Berger (5): > > Provide support for the CUSE TPM > > Support Physical Presence Interface Spec > > Introduce condition to notifiy waiters of completed command > > Introduce condition in TPM backend for notification > > Add support for VM suspend/resume for TPM TIS > > > > hmp.c | 6 + > > hw/i386/acpi-tpm-core.dsl | 277 +++++++++++++++++++++++++++++ > > hw/i386/acpi-tpm2.dsl | 27 +++ > > hw/i386/q35-acpi-dsdt.dsl | 1 + > > hw/i386/ssdt-tpm.dsl | 12 +- > > hw/tpm/tpm_int.h | 4 + > > hw/tpm/tpm_ioctl.h | 178 +++++++++++++++++++ > > hw/tpm/tpm_passthrough.c | 410 > > +++++++++++++++++++++++++++++++++++++++++-- > > hw/tpm/tpm_tis.c | 152 +++++++++++++++- > > hw/tpm/tpm_tis.h | 2 + > > hw/tpm/tpm_util.c | 206 ++++++++++++++++++++++ > > hw/tpm/tpm_util.h | 7 + > > include/sysemu/tpm_backend.h | 12 ++ > > qapi-schema.json | 17 +- > > qemu-options.hx | 21 ++- > > qmp-commands.hx | 2 +- > > tpm.c | 11 +- > > 17 files changed, 1316 insertions(+), 29 deletions(-) > > create mode 100644 hw/i386/acpi-tpm-core.dsl > > create mode 100644 hw/i386/acpi-tpm2.dsl > > create mode 100644 hw/tpm/tpm_ioctl.h > >
