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pc: acpi: tpm: add missing MMIO resource to PCI0._CRS

Message ID 1459344906-46409-1-git-send-email-imammedo@redhat.com (mailing list archive)
State New, archived
Headers show

Commit Message

Igor Mammedov March 30, 2016, 1:35 p.m. UTC 
Windows will fail it 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.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
---
 hw/i386/acpi-build.c | 5 +++++
 1 file changed, 5 insertions(+)
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Patch

diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index 35180ef..784870e 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 */