[xen staging] xen/x86: Pass TPM ACPI table to PVH dom0

[patchbot@xxxxxxx]

commit 46f3ed0d53db6daf38c230dff0d2910bcb61fbe2
Author:     Jason Andryuk <jason.andryuk@xxxxxxx>
AuthorDate: Tue Dec 16 09:40:18 2025 +0100
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Tue Dec 16 09:40:18 2025 +0100

    xen/x86: Pass TPM ACPI table to PVH dom0
    
    Pass the TPM2 ACPI table so that the device can be found by a PVH dom0.
    
    Otherwise dom0 shows:
    tpm_tis MSFT0101:00: [Firmware Bug]: failed to get TPM2 ACPI table
    tpm_tis MSFT0101:00: probe with driver tpm_tis failed with error -22
    
    TCPA is "Trusted Computing Platform Alliance table", but it is really
    the table for a TPM 1.2.  Pass that as well.
    
    While doing this, move ACPI_SIG_WPBT to alpabetize the entries.
    
    This exposes TPM event log tables on PVH dom0, bring it in line with a
    PV dom0.
    
    Signed-off-by: Jason Andryuk <jason.andryuk@xxxxxxx>
    Acked-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
---
 xen/arch/x86/hvm/dom0_build.c | 2 +-
 xen/include/acpi/actbl3.h     | 4 +++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/xen/arch/x86/hvm/dom0_build.c b/xen/arch/x86/hvm/dom0_build.c
index 5ac2cf8394..7eccadf7aa 100644
--- a/xen/arch/x86/hvm/dom0_build.c
+++ b/xen/arch/x86/hvm/dom0_build.c
@@ -1013,7 +1013,7 @@ static bool __init pvh_acpi_table_allowed(const char *sig,
         ACPI_SIG_DSDT, ACPI_SIG_FADT, ACPI_SIG_FACS, ACPI_SIG_PSDT,
         ACPI_SIG_SSDT, ACPI_SIG_SBST, ACPI_SIG_MCFG, ACPI_SIG_SLIC,
         ACPI_SIG_MSDM, ACPI_SIG_WDAT, ACPI_SIG_FPDT, ACPI_SIG_S3PT,
-        ACPI_SIG_VFCT,
+        ACPI_SIG_TCPA, ACPI_SIG_TPM2, ACPI_SIG_VFCT,
     };
     unsigned int i;
 
diff --git a/xen/include/acpi/actbl3.h b/xen/include/acpi/actbl3.h
index 6858d3e60f..636d3f5f5b 100644
--- a/xen/include/acpi/actbl3.h
+++ b/xen/include/acpi/actbl3.h
@@ -78,8 +78,10 @@
 #define ACPI_SIG_CSRT           "CSRT" /* Core System Resources Table */
 #define ACPI_SIG_MATR           "MATR" /* Memory Address Translation Table */
 #define ACPI_SIG_MSDM           "MSDM" /* Microsoft Data Management Table */
-#define ACPI_SIG_WPBT           "WPBT" /* Windows Platform Binary Table */
+#define ACPI_SIG_TCPA           "TCPA" /* Trusted Computing Platform Alliance 
table */
+#define ACPI_SIG_TPM2           "TPM2" /* Trusted Platform Module 2.0 H/W 
interface table */
 #define ACPI_SIG_VFCT           "VFCT" /* AMD Video BIOS */
+#define ACPI_SIG_WPBT           "WPBT" /* Windows Platform Binary Table */
 
 /*
  * All tables must be byte-packed to match the ACPI specification, since
--
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