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authorStefan Berger <stefanb@linux.ibm.com>2019-01-25 16:00:58 -0500
committerMichael S. Tsirkin <mst@redhat.com>2019-02-05 10:58:33 -0500
commit24cf5413aa059f874c34e442802ce25cd1e72178 (patch)
treea69926f647adc97acdc95317d0021caf5747de46
parent87593a4751c89993896ea534c59a9488d7963ae9 (diff)
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acpi: Make TPM 2.0 with TIS available as MSFT0101
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 <stefanb@linux.ibm.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Igor Mammedov <imammedo@redhat.com>
-rw-r--r--hw/i386/acpi-build.c12
1 files changed, 10 insertions, 2 deletions
diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index d60603a..26cef4a 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,