42 lines
1.5 KiB
Diff
42 lines
1.5 KiB
Diff
From: Igor Mammedov <imammedo@redhat.com>
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Date: Fri, 8 Apr 2016 13:23:13 +0200
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Subject: [PATCH] pc: acpi: tpm: add missing MMIO resource to PCI0._CRS
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Windows will fail initialize TMP driver with the reason:
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'device cannot find enough free resources'
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That happens because parent BUS doesn't describe
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MMIO resources used by TPM child device.
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Fix it by describing it in top-most parent bus scope PCI0.
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It was 'regressed' by commit
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5cb18b3d TPM2 ACPI table support
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with following fixup
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9e472263 acpi: add missing ssdt
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which did the right thing by moving TPM to BUS
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it belongs to but lacked a proper resource declaration.
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Signed-off-by: Igor Mammedov <imammedo@redhat.com>
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Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
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Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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(cherry picked from commit 2b1c2e8e5f1990f0a201a8cbf9d366fca60f4aa8)
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---
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hw/i386/acpi-build.c | 5 +++++
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1 file changed, 5 insertions(+)
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diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
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index 46eddb8..9c406a5 100644
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--- a/hw/i386/acpi-build.c
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+++ b/hw/i386/acpi-build.c
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@@ -1005,6 +1005,11 @@ build_ssdt(GArray *table_data, GArray *linker,
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0, pci->w64.begin, pci->w64.end - 1, 0,
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pci->w64.end - pci->w64.begin));
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}
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+
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+ if (misc->tpm_version != TPM_VERSION_UNSPEC) {
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+ aml_append(crs, aml_memory32_fixed(TPM_TIS_ADDR_BASE,
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+ TPM_TIS_ADDR_SIZE, AML_READ_WRITE));
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+ }
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aml_append(scope, aml_name_decl("_CRS", crs));
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/* reserve GPE0 block resources */
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