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qemu: add tpm string section to qemu acpi table

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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.

(From OE-Core rev: 88bf29935358e727c65693085b50a57f879b774b)

Signed-off-by: Liwei Song <liwei.song@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
LiweiSong
2022-02-23 17:57:55 +08:00
committed by Richard Purdie
parent 92ec600cac
commit ea422d16ff
2 changed files with 84 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
meta/recipes-devtools/qemu/qemu.inc
View File

@@ -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"

83
meta/recipes-devtools/qemu/qemu/0001-acpi-tpm-Add-missing-device-identification-objects.patch Normal file
View File

@@ -0,0 +1,83 @@
From 5903646d3913af6544680f6645fcb7296d0b3a1c Mon Sep 17 00:00:00 2001
From: Stefan Berger <stefanb@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.zhaosl@gmail.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Igor Mammedov <imammedo@redhat.com>
Cc: Ani Sinha <ani@anisinha.ca>
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/708
Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
Reviewed-by: Ani Sinha <ani@anisinha.ca>
Reviewed-by: Shannon Zhao <shannon.zhaosl@gmail.com>
Message-id: 20211223022310.575496-3-stefanb@linux.ibm.com
Message-Id: <20220104175806.872996-3-stefanb@linux.ibm.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Liwei Song <liwei.song@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