On 2021/12/23 10:23, Stefan Berger wrote:
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)));
For ARM part
Reviewed-by: Shannon Zhao <shannon.zha...@gmail.com>
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);
