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

pci, pc fixes, features

A bunch of bugfixes - these will make sense for 2.1.1

ACPI support for TPM and partial ARI support for PCIE.

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

# gpg: Signature made Sun 24 Aug 2014 23:16:35 BST using RSA key ID D28D5469
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>"
# gpg:                 aka "Michael S. Tsirkin <mst@redhat.com>"

* remotes/mst/tags/for_upstream:
  pcie: fix trailing whitespace
  ioh3420: Enable ARI forwarding
  ioh3420: Remove obsoleted, unused ioh3420_init function
  pcie: Rename the pcie_cap_ari_* functions to pcie_cap_arifwd_*
  pcie: Fix incorrect write to the ari capability next function field
  ssdt-tpm: add generated hex file to git
  Add ACPI tables for TPM
  pc: reserve more memory for ACPI for new machine types
  pcihp: fix possible array out of bounds
  pci_bridge: manually destroy memory regions within PCIBridgeWindows
  hostmem: set MPOL_MF_MOVE

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

19 files changed, 270 insertions, 48 deletions

diff --git a/backends/hostmem.c b/backends/hostmem.c
index e7eec3756a..99e8f99da8 100644
--- a/backends/hostmem.c
+++ b/backends/hostmem.c
@@ -295,7 +295,7 @@ host_memory_backend_memory_complete(UserCreatable *uc, Error **errp)
         /* ensure policy won't be ignored in case memory is preallocated
          * before mbind(). note: MPOL_MF_STRICT is ignored on hugepages so
          * this doesn't catch hugepage case. */
-        unsigned flags = MPOL_MF_STRICT;
+        unsigned flags = MPOL_MF_STRICT | MPOL_MF_MOVE;
 
         /* check for invalid host-nodes and policies and give more verbose
          * error messages than mbind(). */
diff --git a/hw/acpi/pcihp.c b/hw/acpi/pcihp.c
index fae663af11..34dedf1e8b 100644
--- a/hw/acpi/pcihp.c
+++ b/hw/acpi/pcihp.c
@@ -231,7 +231,7 @@ static uint64_t pci_read(void *opaque, hwaddr addr, unsigned int size)
     uint32_t val = 0;
     int bsel = s->hotplug_select;
 
-    if (bsel < 0 || bsel > ACPI_PCIHP_MAX_HOTPLUG_BUS) {
+    if (bsel < 0 || bsel >= ACPI_PCIHP_MAX_HOTPLUG_BUS) {
         return 0;
     }
 
diff --git a/hw/i386/Makefile.objs b/hw/i386/Makefile.objs
index 48014abf0a..3688cf8243 100644
--- a/hw/i386/Makefile.objs
+++ b/hw/i386/Makefile.objs
@@ -10,7 +10,8 @@ obj-y += bios-linker-loader.o
 hw/i386/acpi-build.o: hw/i386/acpi-build.c hw/i386/acpi-dsdt.hex \
 	hw/i386/ssdt-proc.hex hw/i386/ssdt-pcihp.hex hw/i386/ssdt-misc.hex \
 	hw/i386/acpi-dsdt.hex hw/i386/q35-acpi-dsdt.hex \
-	hw/i386/q35-acpi-dsdt.hex hw/i386/ssdt-mem.hex
+	hw/i386/q35-acpi-dsdt.hex hw/i386/ssdt-mem.hex \
+	hw/i386/ssdt-tpm.hex
 
 iasl-option=$(shell if test -z "`$(1) $(2) 2>&1 > /dev/null`" \
     ; then echo "$(2)"; else echo "$(3)"; fi ;)
diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index 10b84d039b..85e58347ce 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -40,6 +40,8 @@
 #include "hw/loader.h"
 #include "hw/isa/isa.h"
 #include "hw/acpi/memory_hotplug.h"
+#include "sysemu/tpm.h"
+#include "hw/acpi/tpm.h"
 
 /* Supported chipsets: */
 #include "hw/acpi/piix4.h"
@@ -88,6 +90,7 @@ typedef struct AcpiPmInfo {
 
 typedef struct AcpiMiscInfo {
     bool has_hpet;
+    bool has_tpm;
     DECLARE_BITMAP(slot_hotplug_enable, PCI_SLOT_MAX);
     const unsigned char *dsdt_code;
     unsigned dsdt_size;
@@ -210,6 +213,7 @@ static void acpi_get_pm_info(AcpiPmInfo *pm)
 static void acpi_get_misc_info(AcpiMiscInfo *info)
 {
     info->has_hpet = hpet_find();
+    info->has_tpm = tpm_find();
     info->pvpanic_port = pvpanic_port();
 }
 
@@ -698,6 +702,7 @@ static inline char acpi_get_hex(uint32_t val)
 
 #include "hw/i386/ssdt-misc.hex"
 #include "hw/i386/ssdt-pcihp.hex"
+#include "hw/i386/ssdt-tpm.hex"
 
 static void
 build_append_notify_method(GArray *device, const char *name,
@@ -1201,6 +1206,39 @@ build_hpet(GArray *table_data, GArray *linker)
                  (void *)hpet, "HPET", sizeof(*hpet), 1);
 }
 
+static void
+build_tpm_tcpa(GArray *table_data, GArray *linker)
+{
+    Acpi20Tcpa *tcpa = acpi_data_push(table_data, sizeof *tcpa);
+    /* the log area will come right after the TCPA table */
+    uint64_t log_area_start_address = acpi_data_len(table_data);
+
+    tcpa->platform_class = cpu_to_le16(TPM_TCPA_ACPI_CLASS_CLIENT);
+    tcpa->log_area_minimum_length = cpu_to_le32(TPM_LOG_AREA_MINIMUM_SIZE);
+    tcpa->log_area_start_address = cpu_to_le64(log_area_start_address);
+
+    /* log area start address to be filled by Guest linker */
+    bios_linker_loader_add_pointer(linker, ACPI_BUILD_TABLE_FILE,
+                                   ACPI_BUILD_TABLE_FILE,
+                                   table_data, &tcpa->log_area_start_address,
+                                   sizeof(tcpa->log_area_start_address));
+
+    build_header(linker, table_data,
+                 (void *)tcpa, "TCPA", sizeof(*tcpa), 2);
+
+    /* now only get the log area and with that modify table_data */
+    acpi_data_push(table_data, TPM_LOG_AREA_MINIMUM_SIZE);
+}
+
+static void
+build_tpm_ssdt(GArray *table_data, GArray *linker)
+{
+    void *tpm_ptr;
+
+    tpm_ptr = acpi_data_push(table_data, sizeof(ssdt_tpm_aml));
+    memcpy(tpm_ptr, ssdt_tpm_aml, sizeof(ssdt_tpm_aml));
+}
+
 typedef enum {
     MEM_AFFINITY_NOFLAGS      = 0,
     MEM_AFFINITY_ENABLED      = (1 << 0),
@@ -1531,6 +1569,13 @@ void acpi_build(PcGuestInfo *guest_info, AcpiBuildTables *tables)
         acpi_add_table(table_offsets, tables->table_data);
         build_hpet(tables->table_data, tables->linker);
     }
+    if (misc.has_tpm) {
+        acpi_add_table(table_offsets, tables->table_data);
+        build_tpm_tcpa(tables->table_data, tables->linker);
+
+        acpi_add_table(table_offsets, tables->table_data);
+        build_tpm_ssdt(tables->table_data, tables->linker);
+    }
     if (guest_info->numa_nodes) {
         acpi_add_table(table_offsets, tables->table_data);
         build_srat(tables->table_data, tables->linker, &cpu, guest_info);
diff --git a/hw/i386/acpi-defs.h b/hw/i386/acpi-defs.h
index e93babb026..1bc974a363 100644
--- a/hw/i386/acpi-defs.h
+++ b/hw/i386/acpi-defs.h
@@ -314,4 +314,15 @@ struct AcpiTableMcfg {
 } QEMU_PACKED;
 typedef struct AcpiTableMcfg AcpiTableMcfg;
 
+/*
+ * TCPA Description Table
+ */
+struct Acpi20Tcpa {
+    ACPI_TABLE_HEADER_DEF                    /* ACPI common table header */
+    uint16_t platform_class;
+    uint32_t log_area_minimum_length;
+    uint64_t log_area_start_address;
+} QEMU_PACKED;
+typedef struct Acpi20Tcpa Acpi20Tcpa;
+
 #endif
diff --git a/hw/i386/pc.c b/hw/i386/pc.c
index 8fa8d2f781..0ca4deb1b3 100644
--- a/hw/i386/pc.c
+++ b/hw/i386/pc.c
@@ -73,7 +73,12 @@
 #endif
 
 /* Leave a chunk of memory at the top of RAM for the BIOS ACPI tables.  */
-#define ACPI_DATA_SIZE       0x10000
+unsigned acpi_data_size = 0x20000;
+void pc_set_legacy_acpi_data_size(void)
+{
+    acpi_data_size = 0x10000;
+}
+
 #define BIOS_CFG_IOPORT 0x510
 #define FW_CFG_ACPI_TABLES (FW_CFG_ARCH_LOCAL + 0)
 #define FW_CFG_SMBIOS_ENTRIES (FW_CFG_ARCH_LOCAL + 1)
@@ -811,8 +816,9 @@ static void load_linux(FWCfgState *fw_cfg,
         initrd_max = 0x37ffffff;
     }
 
-    if (initrd_max >= max_ram_size-ACPI_DATA_SIZE)
-    	initrd_max = max_ram_size-ACPI_DATA_SIZE-1;
+    if (initrd_max >= max_ram_size - acpi_data_size) {
+        initrd_max = max_ram_size - acpi_data_size - 1;
+    }
 
     fw_cfg_add_i32(fw_cfg, FW_CFG_CMDLINE_ADDR, cmdline_addr);
     fw_cfg_add_i32(fw_cfg, FW_CFG_CMDLINE_SIZE, strlen(kernel_cmdline)+1);
diff --git a/hw/i386/pc_piix.c b/hw/i386/pc_piix.c
index 47ac1b528d..103d756a72 100644
--- a/hw/i386/pc_piix.c
+++ b/hw/i386/pc_piix.c
@@ -323,6 +323,7 @@ static void pc_compat_2_0(MachineState *machine)
     legacy_acpi_table_size = 6652;
     smbios_legacy_mode = true;
     has_reserved_memory = false;
+    pc_set_legacy_acpi_data_size();
 }
 
 static void pc_compat_1_7(MachineState *machine)
diff --git a/hw/i386/pc_q35.c b/hw/i386/pc_q35.c
index 4b5a27404a..d4a907c71b 100644
--- a/hw/i386/pc_q35.c
+++ b/hw/i386/pc_q35.c
@@ -280,6 +280,7 @@ static void pc_compat_2_0(MachineState *machine)
 {
     smbios_legacy_mode = true;
     has_reserved_memory = false;
+    pc_set_legacy_acpi_data_size();
 }
 
 static void pc_compat_1_7(MachineState *machine)
diff --git a/hw/i386/ssdt-tpm.dsl b/hw/i386/ssdt-tpm.dsl
new file mode 100644
index 0000000000..75d96910bf
--- /dev/null
+++ b/hw/i386/ssdt-tpm.dsl
@@ -0,0 +1,43 @@
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+#include "hw/acpi/tpm.h"
+
+ACPI_EXTRACT_ALL_CODE ssdt_tpm_aml
+
+DefinitionBlock (
+    "ssdt-tpm.aml",     // Output Filename
+    "SSDT",             // Signature
+    0x01,               // SSDT Compliance Revision
+    "BXPC",             // OEMID
+    "BXSSDT",           // TABLE ID
+    0x1                 // OEM Revision
+    )
+{
+    Scope(\_SB) {
+        /* TPM with emulated TPM TIS interface */
+        Device (TPM) {
+            Name (_HID, EisaID ("PNP0C31"))
+            Name (_CRS, ResourceTemplate ()
+            {
+                Memory32Fixed (ReadWrite, TPM_TIS_ADDR_BASE, TPM_TIS_ADDR_SIZE)
+                // older Linux tpm_tis drivers do not work with IRQ
+                //IRQNoFlags () {TPM_TIS_IRQ}
+            })
+            Method (_STA, 0, NotSerialized) {
+                Return (0x0F)
+            }
+        }
+    }
+}
diff --git a/hw/i386/ssdt-tpm.hex.generated b/hw/i386/ssdt-tpm.hex.generated
new file mode 100644
index 0000000000..4a916a8398
--- /dev/null
+++ b/hw/i386/ssdt-tpm.hex.generated
@@ -0,0 +1,95 @@
+static unsigned char ssdt_tpm_aml[] = {
+0x53,
+0x53,
+0x44,
+0x54,
+0x5d,
+0x0,
+0x0,
+0x0,
+0x1,
+0xf,
+0x42,
+0x58,
+0x50,
+0x43,
+0x0,
+0x0,
+0x42,
+0x58,
+0x53,
+0x53,
+0x44,
+0x54,
+0x0,
+0x0,
+0x1,
+0x0,
+0x0,
+0x0,
+0x49,
+0x4e,
+0x54,
+0x4c,
+0x15,
+0x11,
+0x13,
+0x20,
+0x10,
+0x38,
+0x5c,
+0x5f,
+0x53,
+0x42,
+0x5f,
+0x5b,
+0x82,
+0x30,
+0x54,
+0x50,
+0x4d,
+0x5f,
+0x8,
+0x5f,
+0x48,
+0x49,
+0x44,
+0xc,
+0x41,
+0xd0,
+0xc,
+0x31,
+0x8,
+0x5f,
+0x43,
+0x52,
+0x53,
+0x11,
+0x11,
+0xa,
+0xe,
+0x86,
+0x9,
+0x0,
+0x1,
+0x0,
+0x0,
+0xd4,
+0xfe,
+0x0,
+0x50,
+0x0,
+0x0,
+0x79,
+0x0,
+0x14,
+0x9,
+0x5f,
+0x53,
+0x54,
+0x41,
+0x0,
+0xa4,
+0xa,
+0xf
+};
diff --git a/hw/pci-bridge/ioh3420.c b/hw/pci-bridge/ioh3420.c
index 7cd87fcbb4..cce2fdd8e7 100644
--- a/hw/pci-bridge/ioh3420.c
+++ b/hw/pci-bridge/ioh3420.c
@@ -85,6 +85,7 @@ static void ioh3420_reset(DeviceState *qdev)
     pcie_cap_root_reset(d);
     pcie_cap_deverr_reset(d);
     pcie_cap_slot_reset(d);
+    pcie_cap_arifwd_reset(d);
     pcie_aer_root_reset(d);
     pci_bridge_reset(qdev);
     pci_bridge_disable_base_limit(d);
@@ -118,6 +119,8 @@ static int ioh3420_initfn(PCIDevice *d)
     if (rc < 0) {
         goto err_msi;
     }
+
+    pcie_cap_arifwd_init(d);
     pcie_cap_deverr_init(d);
     pcie_cap_slot_init(d, s->slot);
     pcie_chassis_create(s->chassis);
@@ -156,30 +159,6 @@ static void ioh3420_exitfn(PCIDevice *d)
     pci_bridge_exitfn(d);
 }
 
-PCIESlot *ioh3420_init(PCIBus *bus, int devfn, bool multifunction,
-                         const char *bus_name, pci_map_irq_fn map_irq,
-                         uint8_t port, uint8_t chassis, uint16_t slot)
-{
-    PCIDevice *d;
-    PCIBridge *br;
-    DeviceState *qdev;
-
-    d = pci_create_multifunction(bus, devfn, multifunction, "ioh3420");
-    if (!d) {
-        return NULL;
-    }
-    br = PCI_BRIDGE(d);
-
-    qdev = DEVICE(d);
-    pci_bridge_map_irq(br, bus_name, map_irq);
-    qdev_prop_set_uint8(qdev, "port", port);
-    qdev_prop_set_uint8(qdev, "chassis", chassis);
-    qdev_prop_set_uint16(qdev, "slot", slot);
-    qdev_init_nofail(qdev);
-
-    return PCIE_SLOT(d);
-}
-
 static Property ioh3420_props[] = {
     DEFINE_PROP_BIT(COMPAT_PROP_PCP, PCIDevice, cap_present,
                     QEMU_PCIE_SLTCAP_PCP_BITNR, true),
diff --git a/hw/pci-bridge/xio3130_downstream.c b/hw/pci-bridge/xio3130_downstream.c
index 51f20d7467..b3a6479262 100644
--- a/hw/pci-bridge/xio3130_downstream.c
+++ b/hw/pci-bridge/xio3130_downstream.c
@@ -50,7 +50,7 @@ static void xio3130_downstream_reset(DeviceState *qdev)
 
     pcie_cap_deverr_reset(d);
     pcie_cap_slot_reset(d);
-    pcie_cap_ari_reset(d);
+    pcie_cap_arifwd_reset(d);
     pci_bridge_reset(qdev);
 }
 
@@ -91,7 +91,7 @@ static int xio3130_downstream_initfn(PCIDevice *d)
     if (rc < 0) {
         goto err_pcie_cap;
     }
-    pcie_cap_ari_init(d);
+    pcie_cap_arifwd_init(d);
     rc = pcie_aer_init(d, XIO3130_AER_OFFSET);
     if (rc < 0) {
         goto err;
diff --git a/hw/pci/pci_bridge.c b/hw/pci/pci_bridge.c
index 13072655f5..40c97b155c 100644
--- a/hw/pci/pci_bridge.c
+++ b/hw/pci/pci_bridge.c
@@ -219,6 +219,12 @@ static void pci_bridge_region_del(PCIBridge *br, PCIBridgeWindows *w)
 
 static void pci_bridge_region_cleanup(PCIBridge *br, PCIBridgeWindows *w)
 {
+    object_unparent(OBJECT(&w->alias_io));
+    object_unparent(OBJECT(&w->alias_mem));
+    object_unparent(OBJECT(&w->alias_pref_mem));
+    object_unparent(OBJECT(&w->alias_vga[QEMU_PCI_VGA_IO_LO]));
+    object_unparent(OBJECT(&w->alias_vga[QEMU_PCI_VGA_IO_HI]));
+    object_unparent(OBJECT(&w->alias_vga[QEMU_PCI_VGA_MEM]));
     g_free(w);
 }
 
diff --git a/hw/pci/pcie.c b/hw/pci/pcie.c
index a123c01ef1..1babddff4d 100644
--- a/hw/pci/pcie.c
+++ b/hw/pci/pcie.c
@@ -497,9 +497,10 @@ void pcie_cap_flr_write_config(PCIDevice *dev,
     }
 }
 
-/* Alternative Routing-ID Interpretation (ARI) */
-/* ari forwarding support for down stream port */
-void pcie_cap_ari_init(PCIDevice *dev)
+/* Alternative Routing-ID Interpretation (ARI)
+ * forwarding support for root and downstream ports
+ */
+void pcie_cap_arifwd_init(PCIDevice *dev)
 {
     uint32_t pos = dev->exp.exp_cap;
     pci_long_test_and_set_mask(dev->config + pos + PCI_EXP_DEVCAP2,
@@ -508,13 +509,13 @@ void pcie_cap_ari_init(PCIDevice *dev)
                                PCI_EXP_DEVCTL2_ARI);
 }
 
-void pcie_cap_ari_reset(PCIDevice *dev)
+void pcie_cap_arifwd_reset(PCIDevice *dev)
 {
     uint8_t *devctl2 = dev->config + dev->exp.exp_cap + PCI_EXP_DEVCTL2;
     pci_long_test_and_clear_mask(devctl2, PCI_EXP_DEVCTL2_ARI);
 }
 
-bool pcie_cap_is_ari_enabled(const PCIDevice *dev)
+bool pcie_cap_is_arifwd_enabled(const PCIDevice *dev)
 {
     if (!pci_is_express(dev)) {
         return false;
@@ -630,5 +631,5 @@ void pcie_ari_init(PCIDevice *dev, uint16_t offset, uint16_t nextfn)
 {
     pcie_add_capability(dev, PCI_EXT_CAP_ID_ARI, PCI_ARI_VER,
                         offset, PCI_ARI_SIZEOF);
-    pci_set_long(dev->config + offset + PCI_ARI_CAP, PCI_ARI_CAP_NFN(nextfn));
+    pci_set_long(dev->config + offset + PCI_ARI_CAP, (nextfn & 0xff) << 8);
 }
diff --git a/hw/tpm/tpm_tis.h b/hw/tpm/tpm_tis.h
index 916152ae3e..1a0db23367 100644
--- a/hw/tpm/tpm_tis.h
+++ b/hw/tpm/tpm_tis.h
@@ -18,23 +18,17 @@
 #define TPM_TPM_TIS_H
 
 #include "hw/isa/isa.h"
+#include "hw/acpi/tpm.h"
 #include "qemu-common.h"
 
-#define TPM_TIS_ADDR_BASE           0xFED40000
-
 #define TPM_TIS_NUM_LOCALITIES      5     /* per spec */
 #define TPM_TIS_LOCALITY_SHIFT      12
 #define TPM_TIS_NO_LOCALITY         0xff
 
 #define TPM_TIS_IS_VALID_LOCTY(x)   ((x) < TPM_TIS_NUM_LOCALITIES)
 
-#define TPM_TIS_IRQ                 5
-
 #define TPM_TIS_BUFFER_MAX          4096
 
-#define TYPE_TPM_TIS                "tpm-tis"
-
-
 typedef enum {
     TPM_TIS_STATE_IDLE = 0,
     TPM_TIS_STATE_READY,
diff --git a/include/hw/acpi/tpm.h b/include/hw/acpi/tpm.h
new file mode 100644
index 0000000000..792fcbf5b1
--- /dev/null
+++ b/include/hw/acpi/tpm.h
@@ -0,0 +1,29 @@
+/*
+ * tpm.h - TPM ACPI definitions
+ *
+ * Copyright (C) 2014 IBM Corporation
+ *
+ * Authors:
+ *  Stefan Berger <stefanb@us.ibm.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ *
+ * Implementation of the TIS interface according to specs found at
+ * http://www.trustedcomputinggroup.org
+ *
+ */
+#ifndef HW_ACPI_TPM_H
+#define HW_ACPI_TPM_H
+
+#define TPM_TIS_ADDR_BASE           0xFED40000
+#define TPM_TIS_ADDR_SIZE           0x5000
+
+#define TPM_TIS_IRQ                 5
+
+#define TPM_LOG_AREA_MINIMUM_SIZE   (64 * 1024)
+
+#define TPM_TCPA_ACPI_CLASS_CLIENT  0
+#define TPM_TCPA_ACPI_CLASS_SERVER  1
+
+#endif /* HW_ACPI_TPM_H */
diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h
index 0fca9e3fd7..a39cb42290 100644
--- a/include/hw/i386/pc.h
+++ b/include/hw/i386/pc.h
@@ -176,6 +176,8 @@ void pc_acpi_init(const char *default_dsdt);
 PcGuestInfo *pc_guest_info_init(ram_addr_t below_4g_mem_size,
                                 ram_addr_t above_4g_mem_size);
 
+void pc_set_legacy_acpi_data_size(void);
+
 #define PCI_HOST_PROP_PCI_HOLE_START   "pci-hole-start"
 #define PCI_HOST_PROP_PCI_HOLE_END     "pci-hole-end"
 #define PCI_HOST_PROP_PCI_HOLE64_START "pci-hole64-start"
diff --git a/include/hw/pci/pcie.h b/include/hw/pci/pcie.h
index 7fe81f31ef..d139d588f6 100644
--- a/include/hw/pci/pcie.h
+++ b/include/hw/pci/pcie.h
@@ -103,9 +103,10 @@ void pcie_cap_flr_init(PCIDevice *dev);
 void pcie_cap_flr_write_config(PCIDevice *dev,
                            uint32_t addr, uint32_t val, int len);
 
-void pcie_cap_ari_init(PCIDevice *dev);
-void pcie_cap_ari_reset(PCIDevice *dev);
-bool pcie_cap_is_ari_enabled(const PCIDevice *dev);
+/* ARI forwarding capability and control */
+void pcie_cap_arifwd_init(PCIDevice *dev);
+void pcie_cap_arifwd_reset(PCIDevice *dev);
+bool pcie_cap_is_arifwd_enabled(const PCIDevice *dev);
 
 /* PCI express extended capability helper functions */
 uint16_t pcie_find_capability(PCIDevice *dev, uint16_t cap_id);
diff --git a/include/sysemu/tpm.h b/include/sysemu/tpm.h
index 13febddbee..9b81ce9189 100644
--- a/include/sysemu/tpm.h
+++ b/include/sysemu/tpm.h
@@ -20,4 +20,11 @@ int tpm_config_parse(QemuOptsList *opts_list, const char *optarg);
 int tpm_init(void);
 void tpm_cleanup(void);
 
+#define TYPE_TPM_TIS                "tpm-tis"
+
+static inline bool tpm_find(void)
+{
+    return object_resolve_path_type("", TYPE_TPM_TIS, NULL);
+}
+
 #endif /* QEMU_TPM_H */