[Qemu-stable] [PATCH 88/97] acpi: Make TPM 2.0 with TIS available as MSFT0101

[Michael Roth]

From: Stefan Berger <address@hidden>

This is a backport of rev 24cf5413aa0 to 3.0.x and 3.1.x.

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 <address@hidden>
Reviewed-by: Michael S. Tsirkin <address@hidden>
Signed-off-by: Michael S. Tsirkin <address@hidden>
Reviewed-by: Igor Mammedov <address@hidden>
Signed-off-by: Michael Roth <address@hidden>
---
 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 1599caa7c5..31ed0e16a2 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -2134,8 +2134,16 @@ build_dsdt(GArray *table_data, BIOSLinker *linker,
             build_append_pci_bus_devices(scope, bus, pm->pcihp_bridge_en);
 
             if (TPM_IS_TIS(tpm_find())) {
-                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,
-- 
2.17.1