On Fri, 25 Jan 2019 16:00:58 -0500
Stefan Berger <stef...@linux.ibm.com> wrote:
> This patch makes the a TPM 2.0 with TIS interface available under the
> HID 'MSF0101'. This is supported by Linux and also Windows now
> recognizes the TPM 2.0 with TIS interface. Leave the TPM 1.2 as before.
>
> Signed-off-by: Stefan Berger <stef...@linux.ibm.com>
Reviewed-by: Igor Mammedov <imamm...@redhat.com>
> ---
> hw/i386/acpi-build.c | 12 ++++++++++--
> 1 file changed, 10 insertions(+), 2 deletions(-)
>
> diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
> index 2e21a31f82..f51225b4a7 100644
> --- a/hw/i386/acpi-build.c
> +++ b/hw/i386/acpi-build.c
> @@ -2141,8 +2141,16 @@ build_dsdt(GArray *table_data, BIOSLinker *linker,
> build_append_pci_bus_devices(scope, bus, pm->pcihp_bridge_en);
>
> if (TPM_IS_TIS(tpm)) {
> - dev = aml_device("ISA.TPM");
> - aml_append(dev, aml_name_decl("_HID",
> aml_eisaid("PNP0C31")));
> + if (misc->tpm_version == TPM_VERSION_2_0) {
> + dev = aml_device("TPM");
> + aml_append(dev, aml_name_decl("_HID",
> + aml_string("MSFT0101")));
> + } else {
> + dev = aml_device("ISA.TPM");
> + aml_append(dev, aml_name_decl("_HID",
> + aml_eisaid("PNP0C31")));
> + }
> +
> aml_append(dev, aml_name_decl("_STA", aml_int(0xF)));
> crs = aml_resource_template();
> aml_append(crs, aml_memory32_fixed(TPM_TIS_ADDR_BASE,
