@@ -228,6 +228,7 @@ static void acpi_dsdt_add_tpm(Aml *scope, VirtMachineState *vms)
Aml *dev = aml_device("TPM0");
aml_append(dev, aml_name_decl("_HID", aml_string("MSFT0101")));
+ aml_append(dev, aml_name_decl("_STR", aml_string("TPM 2.0 Device")));
aml_append(dev, aml_name_decl("_UID", aml_int(0)));
Aml *crs = aml_resource_template();
@@ -1808,11 +1808,15 @@ build_dsdt(GArray *table_data, BIOSLinker *linker,
dev = aml_device("TPM");
aml_append(dev, aml_name_decl("_HID",
aml_string("MSFT0101")));
+ aml_append(dev,
+ aml_name_decl("_STR",
+ aml_string("TPM 2.0 Device")));
} else {
dev = aml_device("ISA.TPM");
aml_append(dev, aml_name_decl("_HID",
aml_eisaid("PNP0C31")));
}
+ aml_append(dev, aml_name_decl("_UID", aml_int(1)));
aml_append(dev, aml_name_decl("_STA", aml_int(0xF)));
crs = aml_resource_template();
@@ -1840,6 +1844,8 @@ build_dsdt(GArray *table_data, BIOSLinker *linker,
if (TPM_IS_CRB(tpm)) {
dev = aml_device("TPM");
aml_append(dev, aml_name_decl("_HID", aml_string("MSFT0101")));
+ aml_append(dev, aml_name_decl("_STR",
+ aml_string("TPM 2.0 Device")));
crs = aml_resource_template();
aml_append(crs, aml_memory32_fixed(TPM_CRB_ADDR_BASE,
TPM_CRB_ADDR_SIZE, AML_READ_WRITE));
@@ -1847,6 +1853,8 @@ build_dsdt(GArray *table_data, BIOSLinker *linker,
aml_append(dev, aml_name_decl("_STA", aml_int(0xf)));
+ aml_append(dev, aml_name_decl("_UID", aml_int(1)));
+
tpm_build_ppi_acpi(tpm, dev);
aml_append(sb_scope, dev);
Add missing device identification objects _STR and _UID. They will appear as files 'description' and 'uid' under Linux sysfs. Cc: Shannon Zhao <shannon.zhaosl@gmail.com> Cc: Michael S. Tsirkin <mst@redhat.com> Cc: Igor Mammedov <imammedo@redhat.com> Cc: Ani Sinha <ani@anisinha.ca> Fixes: https://gitlab.com/qemu-project/qemu/-/issues/708 Signed-off-by: Stefan Berger <stefanb@linux.ibm.com> --- hw/arm/virt-acpi-build.c | 1 + hw/i386/acpi-build.c | 8 ++++++++ 2 files changed, 9 insertions(+)