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authorIgor Mammedov <imammedo@redhat.com>2016-04-08 13:23:13 +0200
committerMichael S. Tsirkin <mst@redhat.com>2016-04-13 19:52:34 +0300
commit2b1c2e8e5f1990f0a201a8cbf9d366fca60f4aa8 (patch)
tree03e0df51e45ec195adfeeb738cef4f8482aeceb9 /hw/i386
parentc954f09ee5465adb03a95320e9156e2117e09603 (diff)
pc: acpi: tpm: add missing MMIO resource to PCI0._CRS
Windows will fail initialize TMP driver with the reason: 'device cannot find enough free resources' That happens because parent BUS doesn't describe MMIO resources used by TPM child device. Fix it by describing it in top-most parent bus scope PCI0. It was 'regressed' by commit 5cb18b3d TPM2 ACPI table support with following fixup 9e472263 acpi: add missing ssdt which did the right thing by moving TPM to BUS it belongs to but lacked a proper resource declaration. Signed-off-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'hw/i386')
-rw-r--r--hw/i386/acpi-build.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index 35180efe0c..784870ea8a 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -2167,6 +2167,11 @@ build_dsdt(GArray *table_data, GArray *linker,
0, pci->w64.begin, pci->w64.end - 1, 0,
pci->w64.end - pci->w64.begin));
}
+
+ if (misc->tpm_version != TPM_VERSION_UNSPEC) {
+ aml_append(crs, aml_memory32_fixed(TPM_TIS_ADDR_BASE,
+ TPM_TIS_ADDR_SIZE, AML_READ_WRITE));
+ }
aml_append(scope, aml_name_decl("_CRS", crs));
/* reserve GPE0 block resources */