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-rw-r--r--include/exec/cpu-common.h2
-rw-r--r--include/exec/memory.h45
-rw-r--r--include/hw/i386/x86.h17
-rw-r--r--include/hw/intc/loongson_ipi.h (renamed from include/hw/intc/loongarch_ipi.h)12
-rw-r--r--include/hw/loongarch/boot.h10
-rw-r--r--include/hw/loongarch/virt.h21
-rw-r--r--include/migration/misc.h6
7 files changed, 80 insertions, 33 deletions
diff --git a/include/exec/cpu-common.h b/include/exec/cpu-common.h
index 8bc397e251..815342d043 100644
--- a/include/exec/cpu-common.h
+++ b/include/exec/cpu-common.h
@@ -147,8 +147,6 @@ void *cpu_physical_memory_map(hwaddr addr,
                               bool is_write);
 void cpu_physical_memory_unmap(void *buffer, hwaddr len,
                                bool is_write, hwaddr access_len);
-void cpu_register_map_client(QEMUBH *bh);
-void cpu_unregister_map_client(QEMUBH *bh);
 
 bool cpu_physical_memory_is_io(hwaddr phys_addr);
 
diff --git a/include/exec/memory.h b/include/exec/memory.h
index dadb5cd65a..d417d7f363 100644
--- a/include/exec/memory.h
+++ b/include/exec/memory.h
@@ -1112,6 +1112,19 @@ struct MemoryListener {
     QTAILQ_ENTRY(MemoryListener) link_as;
 };
 
+typedef struct AddressSpaceMapClient {
+    QEMUBH *bh;
+    QLIST_ENTRY(AddressSpaceMapClient) link;
+} AddressSpaceMapClient;
+
+typedef struct {
+    MemoryRegion *mr;
+    void *buffer;
+    hwaddr addr;
+    hwaddr len;
+    bool in_use;
+} BounceBuffer;
+
 /**
  * struct AddressSpace: describes a mapping of addresses to #MemoryRegion objects
  */
@@ -1129,6 +1142,12 @@ struct AddressSpace {
     struct MemoryRegionIoeventfd *ioeventfds;
     QTAILQ_HEAD(, MemoryListener) listeners;
     QTAILQ_ENTRY(AddressSpace) address_spaces_link;
+
+    /* Bounce buffer to use for this address space. */
+    BounceBuffer bounce;
+    /* List of callbacks to invoke when buffers free up */
+    QemuMutex map_client_list_lock;
+    QLIST_HEAD(, AddressSpaceMapClient) map_client_list;
 };
 
 typedef struct AddressSpaceDispatch AddressSpaceDispatch;
@@ -2946,8 +2965,8 @@ bool address_space_access_valid(AddressSpace *as, hwaddr addr, hwaddr len,
  * May return %NULL and set *@plen to zero(0), if resources needed to perform
  * the mapping are exhausted.
  * Use only for reads OR writes - not for read-modify-write operations.
- * Use cpu_register_map_client() to know when retrying the map operation is
- * likely to succeed.
+ * Use address_space_register_map_client() to know when retrying the map
+ * operation is likely to succeed.
  *
  * @as: #AddressSpace to be accessed
  * @addr: address within that address space
@@ -2972,6 +2991,28 @@ void *address_space_map(AddressSpace *as, hwaddr addr,
 void address_space_unmap(AddressSpace *as, void *buffer, hwaddr len,
                          bool is_write, hwaddr access_len);
 
+/*
+ * address_space_register_map_client: Register a callback to invoke when
+ * resources for address_space_map() are available again.
+ *
+ * address_space_map may fail when there are not enough resources available,
+ * such as when bounce buffer memory would exceed the limit. The callback can
+ * be used to retry the address_space_map operation. Note that the callback
+ * gets automatically removed after firing.
+ *
+ * @as: #AddressSpace to be accessed
+ * @bh: callback to invoke when address_space_map() retry is appropriate
+ */
+void address_space_register_map_client(AddressSpace *as, QEMUBH *bh);
+
+/*
+ * address_space_unregister_map_client: Unregister a callback that has
+ * previously been registered and not fired yet.
+ *
+ * @as: #AddressSpace to be accessed
+ * @bh: callback to unregister
+ */
+void address_space_unregister_map_client(AddressSpace *as, QEMUBH *bh);
 
 /* Internal functions, part of the implementation of address_space_read.  */
 MemTxResult address_space_read_full(AddressSpace *as, hwaddr addr,
diff --git a/include/hw/i386/x86.h b/include/hw/i386/x86.h
index 4dc30dcb4d..d7b7d3f3ce 100644
--- a/include/hw/i386/x86.h
+++ b/include/hw/i386/x86.h
@@ -18,6 +18,7 @@
 #define HW_I386_X86_H
 
 #include "exec/hwaddr.h"
+#include "exec/memory.h"
 
 #include "hw/boards.h"
 #include "hw/intc/ioapic.h"
@@ -52,6 +53,18 @@ struct X86MachineState {
     GMappedFile *initrd_mapped_file;
     HotplugHandler *acpi_dev;
 
+    /*
+     * Map the whole BIOS just underneath the 4 GiB address boundary. Only used
+     * in the ROM (-bios) case.
+     */
+    MemoryRegion bios;
+
+    /*
+     * Map the upper 128 KiB of the BIOS just underneath the 1 MiB address
+     * boundary.
+     */
+    MemoryRegion isa_bios;
+
     /* RAM information (sizes, addresses, configuration): */
     ram_addr_t below_4g_mem_size, above_4g_mem_size;
 
@@ -116,7 +129,9 @@ void x86_cpu_unplug_request_cb(HotplugHandler *hotplug_dev,
 void x86_cpu_unplug_cb(HotplugHandler *hotplug_dev,
                        DeviceState *dev, Error **errp);
 
-void x86_bios_rom_init(MachineState *ms, const char *default_firmware,
+void x86_isa_bios_init(MemoryRegion *isa_bios, MemoryRegion *isa_memory,
+                       MemoryRegion *bios, bool read_only);
+void x86_bios_rom_init(X86MachineState *x86ms, const char *default_firmware,
                        MemoryRegion *rom_memory, bool isapc_ram_fw);
 
 void x86_load_linux(X86MachineState *x86ms,
diff --git a/include/hw/intc/loongarch_ipi.h b/include/hw/intc/loongson_ipi.h
index 1c1e834849..2c0e8820f5 100644
--- a/include/hw/intc/loongarch_ipi.h
+++ b/include/hw/intc/loongson_ipi.h
@@ -1,12 +1,12 @@
 /* SPDX-License-Identifier: GPL-2.0-or-later */
 /*
- * LoongArch ipi interrupt header files
+ * Loongson ipi interrupt header files
  *
  * Copyright (C) 2021 Loongson Technology Corporation Limited
  */
 
-#ifndef HW_LOONGARCH_IPI_H
-#define HW_LOONGARCH_IPI_H
+#ifndef HW_LOONGSON_IPI_H
+#define HW_LOONGSON_IPI_H
 
 #include "hw/sysbus.h"
 
@@ -30,8 +30,8 @@
 
 #define IPI_MBX_NUM           4
 
-#define TYPE_LOONGARCH_IPI "loongarch_ipi"
-OBJECT_DECLARE_SIMPLE_TYPE(LoongArchIPI, LOONGARCH_IPI)
+#define TYPE_LOONGSON_IPI "loongson_ipi"
+OBJECT_DECLARE_SIMPLE_TYPE(LoongsonIPI, LOONGSON_IPI)
 
 typedef struct IPICore {
     uint32_t status;
@@ -43,7 +43,7 @@ typedef struct IPICore {
     qemu_irq irq;
 } IPICore;
 
-struct LoongArchIPI {
+struct LoongsonIPI {
     SysBusDevice parent_obj;
     MemoryRegion ipi_iocsr_mem;
     MemoryRegion ipi64_iocsr_mem;
diff --git a/include/hw/loongarch/boot.h b/include/hw/loongarch/boot.h
index 4ebcc89dcf..b3b870df1f 100644
--- a/include/hw/loongarch/boot.h
+++ b/include/hw/loongarch/boot.h
@@ -104,6 +104,16 @@ struct loongarch_boot_info {
     uint64_t a0, a1, a2;
 };
 
+extern struct memmap_entry *memmap_table;
+extern unsigned memmap_entries;
+
+struct memmap_entry {
+    uint64_t address;
+    uint64_t length;
+    uint32_t type;
+    uint32_t reserved;
+};
+
 void loongarch_load_kernel(MachineState *ms, struct loongarch_boot_info *info);
 
 #endif /* HW_LOONGARCH_BOOT_H */
diff --git a/include/hw/loongarch/virt.h b/include/hw/loongarch/virt.h
index 4e14bf6060..2c4f5cf9c8 100644
--- a/include/hw/loongarch/virt.h
+++ b/include/hw/loongarch/virt.h
@@ -11,7 +11,7 @@
 #include "target/loongarch/cpu.h"
 #include "hw/boards.h"
 #include "qemu/queue.h"
-#include "hw/intc/loongarch_ipi.h"
+#include "hw/intc/loongson_ipi.h"
 #include "hw/block/flash.h"
 #include "hw/loongarch/boot.h"
 
@@ -37,17 +37,7 @@
 
 #define FDT_BASE                0x100000
 
-extern struct memmap_entry *memmap_table;
-extern unsigned memmap_entries;
-
-struct memmap_entry {
-    uint64_t address;
-    uint64_t length;
-    uint32_t type;
-    uint32_t reserved;
-};
-
-struct LoongArchMachineState {
+struct LoongArchVirtMachineState {
     /*< private >*/
     MachineState parent_obj;
 
@@ -73,8 +63,7 @@ struct LoongArchMachineState {
     struct loongarch_boot_info bootinfo;
 };
 
-#define TYPE_LOONGARCH_MACHINE  MACHINE_TYPE_NAME("virt")
-OBJECT_DECLARE_SIMPLE_TYPE(LoongArchMachineState, LOONGARCH_MACHINE)
-bool loongarch_is_acpi_enabled(LoongArchMachineState *lams);
-void loongarch_acpi_setup(LoongArchMachineState *lams);
+#define TYPE_LOONGARCH_VIRT_MACHINE  MACHINE_TYPE_NAME("virt")
+OBJECT_DECLARE_SIMPLE_TYPE(LoongArchVirtMachineState, LOONGARCH_VIRT_MACHINE)
+void loongarch_acpi_setup(LoongArchVirtMachineState *lvms);
 #endif
diff --git a/include/migration/misc.h b/include/migration/misc.h
index c9e200f4eb..bf7339cc1e 100644
--- a/include/migration/misc.h
+++ b/include/migration/misc.h
@@ -45,12 +45,6 @@ bool migrate_ram_is_ignored(RAMBlock *block);
 
 /* migration/block.c */
 
-#ifdef CONFIG_LIVE_BLOCK_MIGRATION
-void blk_mig_init(void);
-#else
-static inline void blk_mig_init(void) {}
-#endif
-
 AnnounceParameters *migrate_announce_params(void);
 /* migration/savevm.c */