This will create _STR and _UID section for TPM in qemu acpi table, with these section, the missing "description" and "uid" files will be created for TPM in /sys by kernel.
Signed-off-by: Liwei Song <liwei.s...@windriver.com> --- meta/recipes-devtools/qemu/qemu.inc | 1 + ...issing-device-identification-objects.patch | 83 +++++++++++++++++++ 2 files changed, 84 insertions(+) create mode 100644 meta/recipes-devtools/qemu/qemu/0001-acpi-tpm-Add-missing-device-identification-objects.patch diff --git a/meta/recipes-devtools/qemu/qemu.inc b/meta/recipes-devtools/qemu/qemu.inc index 80b83be63f70..fe2bb4d94836 100644 --- a/meta/recipes-devtools/qemu/qemu.inc +++ b/meta/recipes-devtools/qemu/qemu.inc @@ -27,6 +27,7 @@ SRC_URI = "https://download.qemu.org/${BPN}-${PV}.tar.xz \ file://determinism.patch \ file://0001-tests-meson.build-use-relative-path-to-refer-to-file.patch \ file://0001-riscv-Set-5.4-as-minimum-kernel-version-for-riscv32.patch \ + file://0001-acpi-tpm-Add-missing-device-identification-objects.patch \ " UPSTREAM_CHECK_REGEX = "qemu-(?P<pver>\d+(\.\d+)+)\.tar" diff --git a/meta/recipes-devtools/qemu/qemu/0001-acpi-tpm-Add-missing-device-identification-objects.patch b/meta/recipes-devtools/qemu/qemu/0001-acpi-tpm-Add-missing-device-identification-objects.patch new file mode 100644 index 000000000000..ff9167487900 --- /dev/null +++ b/meta/recipes-devtools/qemu/qemu/0001-acpi-tpm-Add-missing-device-identification-objects.patch @@ -0,0 +1,83 @@ +From 5903646d3913af6544680f6645fcb7296d0b3a1c Mon Sep 17 00:00:00 2001 +From: Stefan Berger <stef...@linux.ibm.com> +Date: Tue, 4 Jan 2022 12:58:05 -0500 +Subject: [PATCH] acpi: tpm: Add missing device identification objects + +Add missing TPM device identification objects _STR and _UID. They will +appear as files 'description' and 'uid' under Linux sysfs. + +Following inspection of sysfs entries for hardware TPMs we chose +uid '1'. + +Upstream-Status: Backport [5903646d3913af6544680f6645fcb7296d0b3a1c] + +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> +Resolves: https://gitlab.com/qemu-project/qemu/-/issues/708 +Signed-off-by: Stefan Berger <stef...@linux.ibm.com> +Reviewed-by: Ani Sinha <a...@anisinha.ca> +Reviewed-by: Shannon Zhao <shannon.zha...@gmail.com> +Message-id: 20211223022310.575496-3-stef...@linux.ibm.com +Message-Id: <20220104175806.872996-3-stef...@linux.ibm.com> +Reviewed-by: Michael S. Tsirkin <m...@redhat.com> +Signed-off-by: Michael S. Tsirkin <m...@redhat.com> +Reviewed-by: Igor Mammedov <imamm...@redhat.com> +Signed-off-by: Liwei Song <liwei.s...@windriver.com> +--- + hw/arm/virt-acpi-build.c | 1 + + hw/i386/acpi-build.c | 7 +++++++ + 2 files changed, 8 insertions(+) + +diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c +index d0f4867fdfe5..f2514ce77c0b 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 0234fe7588b7..ce823e8fcb97 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(); +@@ -1844,12 +1848,15 @@ 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)); + aml_append(dev, aml_name_decl("_CRS", crs)); + + 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); + +-- +2.17.1 + -- 2.17.1
-=-=-=-=-=-=-=-=-=-=-=- Links: You receive all messages sent to this group. View/Reply Online (#162249): https://lists.openembedded.org/g/openembedded-core/message/162249 Mute This Topic: https://lists.openembedded.org/mt/89337573/21656 Group Owner: openembedded-core+ow...@lists.openembedded.org Unsubscribe: https://lists.openembedded.org/g/openembedded-core/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
