On 11/9/21 02:30, Marc-André Lureau wrote:
Hi
On Tue, Nov 9, 2021 at 11:25 AM Marc-André Lureau
<marcandre.lur...@redhat.com> wrote:
On Tue, Nov 9, 2021 at 4:37 AM Stefan Berger <stef...@linux.vnet.ibm.com> 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: #708
Signed-off-by: Stefan Berger <stef...@linux.ibm.com>
Reviewed-by: Marc-André Lureau <marcandre.lur...@redhat.com>
(on my host, for some reason the UID is 1, does this matter?)
Let's make it '1'. My TPM 1.2 machine shows also '1'.
specs:
"6.1.12 _UID (Unique ID)
This object provides OSPM with a logical device ID that does not change
across reboots. This object is
optional, but is required when the device has no other way to report a
persistent unique device ID. The
_UID must be unique across all devices with either a common _HID or
_CID. [...]"
And shouldn't this be done also for TIS device?
Fixed. It was missing for the CRB device.
Thanks.
Stefan
---
hw/arm/virt-acpi-build.c | 1 +
hw/i386/acpi-build.c | 4 ++++
2 files changed, 5 insertions(+)
diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c
index 674f902652..09456424aa 100644
--- a/hw/arm/virt-acpi-build.c
+++ b/hw/arm/virt-acpi-build.c
@@ -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();
diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index a3ad6abd33..d6d3541407 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -1808,6 +1808,10 @@ 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")));
+ aml_append(dev, aml_name_decl("_UID", aml_int(0)));
} else {
dev = aml_device("ISA.TPM");
aml_append(dev, aml_name_decl("_HID",
--
2.31.1
