Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging

virtio,acpi,pci: fixes, cleanups.

Fixes, cleanups in ACPI, PCI, virtio.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

# gpg: Signature made Thu 25 Jun 2020 07:48:47 BST
# gpg:                using RSA key 5D09FD0871C8F85B94CA8A0D281F0DB8D28D5469
# gpg:                issuer "mst@redhat.com"
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>" [full]
# gpg:                 aka "Michael S. Tsirkin <mst@redhat.com>" [full]
# Primary key fingerprint: 0270 606B 6F3C DF3D 0B17  0970 C350 3912 AFBE 8E67
#      Subkey fingerprint: 5D09 FD08 71C8 F85B 94CA  8A0D 281F 0DB8 D28D 5469

* remotes/mst/tags/for_upstream:
  Rename use_acpi_pci_hotplug to more appropriate use_acpi_hotplug_bridge
  Stop vhost-user sending uninitialized mmap_offsets
  docs/specs/tpm: ACPI boot now supported for TPM/ARM
  arm/acpi: Add the TPM2.0 device under the DSDT
  acpi: Some build_tpm2() code reshape
  tests/acpi: update expected data files
  acpi: q35: drop _SB.PCI0.ISA.LPCD opregion.
  acpi: drop build_piix4_pm()
  acpi: drop serial/parallel enable bits from dsdt
  acpi: simplify build_isa_devices_aml()
  acpi: factor out fw_cfg_add_acpi_dsdt()
  acpi: move aml builder code for i8042 (kbd+mouse) device
  floppy: move cmos_get_fd_drive_type() from pc
  floppy: make isa_fdc_get_drive_max_chs static
  acpi: move aml builder code for floppy device
  acpi: bios-tables-test: show more context on asl diffs
  qtest: allow DSDT acpi table changes

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 32 insertions, 19 deletions

diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c
index 2cb7b991ef..f6fbc9b95d 100644
--- a/hw/acpi/aml-build.c
+++ b/hw/acpi/aml-build.c
@@ -1878,48 +1878,61 @@ build_hdr:
                  "FACP", tbl->len - fadt_start, f->rev, oem_id, oem_table_id);
 }
 
+/*
+ * build_tpm2 - Build the TPM2 table as specified in
+ * table 7: TCG Hardware Interface Description Table Format for TPM 2.0
+ * of TCG ACPI Specification, Family “1.2” and “2.0”, Version 1.2, Rev 8
+ */
 void build_tpm2(GArray *table_data, BIOSLinker *linker, GArray *tcpalog)
 {
-    Acpi20TPM2 *tpm2_ptr = acpi_data_push(table_data, sizeof(AcpiTableHeader));
-    unsigned log_addr_size = sizeof(tpm2_ptr->log_area_start_address);
-    unsigned log_addr_offset =
-        (char *)&tpm2_ptr->log_area_start_address - table_data->data;
     uint8_t start_method_params[12] = {};
+    unsigned log_addr_offset, tpm2_start;
+    uint64_t control_area_start_address;
     TPMIf *tpmif = tpm_find();
+    uint32_t start_method;
+    void *tpm2_ptr;
+
+    tpm2_start = table_data->len;
+    tpm2_ptr = acpi_data_push(table_data, sizeof(AcpiTableHeader));
 
-    /* platform class */
+    /* Platform Class */
     build_append_int_noprefix(table_data, TPM2_ACPI_CLASS_CLIENT, 2);
-    /* reserved */
+    /* Reserved */
     build_append_int_noprefix(table_data, 0, 2);
     if (TPM_IS_TIS_ISA(tpmif) || TPM_IS_TIS_SYSBUS(tpmif)) {
-        /* address of control area */
-        build_append_int_noprefix(table_data, 0, 8);
-        /* start method */
-        build_append_int_noprefix(table_data, TPM2_START_METHOD_MMIO, 4);
+        control_area_start_address = 0;
+        start_method = TPM2_START_METHOD_MMIO;
     } else if (TPM_IS_CRB(tpmif)) {
-        build_append_int_noprefix(table_data, TPM_CRB_ADDR_CTRL, 8);
-        build_append_int_noprefix(table_data, TPM2_START_METHOD_CRB, 4);
+        control_area_start_address = TPM_CRB_ADDR_CTRL;
+        start_method = TPM2_START_METHOD_CRB;
     } else {
-        g_warn_if_reached();
+        g_assert_not_reached();
     }
+    /* Address of Control Area */
+    build_append_int_noprefix(table_data, control_area_start_address, 8);
+    /* Start Method */
+    build_append_int_noprefix(table_data, start_method, 4);
 
-    /* platform specific parameters */
-    g_array_append_vals(table_data, &start_method_params, 12);
+    /* Platform Specific Parameters */
+    g_array_append_vals(table_data, &start_method_params,
+                        ARRAY_SIZE(start_method_params));
 
-    /* log area minimum length */
+    /* Log Area Minimum Length */
     build_append_int_noprefix(table_data, TPM_LOG_AREA_MINIMUM_SIZE, 4);
 
     acpi_data_push(tcpalog, TPM_LOG_AREA_MINIMUM_SIZE);
     bios_linker_loader_alloc(linker, ACPI_BUILD_TPMLOG_FILE, tcpalog, 1,
                              false);
 
-    /* log area start address to be filled by Guest linker */
+    log_addr_offset = table_data->len;
+
+    /* Log Area Start Address to be filled by Guest linker */
     build_append_int_noprefix(table_data, 0, 8);
     bios_linker_loader_add_pointer(linker, ACPI_BUILD_TABLE_FILE,
-                                   log_addr_offset, log_addr_size,
+                                   log_addr_offset, 8,
                                    ACPI_BUILD_TPMLOG_FILE, 0);
     build_header(linker, table_data,
-                 (void *)tpm2_ptr, "TPM2", sizeof(*tpm2_ptr), 4, NULL, NULL);
+                 tpm2_ptr, "TPM2", table_data->len - tpm2_start, 4, NULL, NULL);
 }
 
 /* ACPI 5.0: 6.4.3.8.2 Serial Bus Connection Descriptors */