Add missing device identification objects _STR and _UID. They will appear as files 'description' and 'uid' under Linux sysfs.
Cc: Shannon Zhao <shannon.zha...@gmail.com> Cc: Michael S. Tsirkin <m...@redhat.com> Cc: Igor Mammedov <imamm...@redhat.com> Cc: Ani Sinha <a...@anisinha.ca> Fixes: https://gitlab.com/qemu-project/qemu/-/issues/708 Signed-off-by: Stefan Berger <stef...@linux.ibm.com> Message-id: 20211110133559.3370990-3-stef...@linux.ibm.com --- hw/arm/virt-acpi-build.c | 1 + hw/i386/acpi-build.c | 8 ++++++++ 2 files changed, 9 insertions(+) diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c index d0f4867fdf..f2514ce77c 100644 --- a/hw/arm/virt-acpi-build.c +++ b/hw/arm/virt-acpi-build.c @@ -229,6 +229,7 @@ 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(); diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c index 8383b83ee3..2fb70847cb 100644 --- a/hw/i386/acpi-build.c +++ b/hw/i386/acpi-build.c @@ -1812,11 +1812,15 @@ 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(); @@ -1844,6 +1848,8 @@ 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)); @@ -1851,6 +1857,8 @@ 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); -- 2.31.1
