Merge tag 'exec-20241220' of https://github.com/philmd/qemu into staging

Accel & Exec patch queue

- Ignore writes to CNTP_CTL_EL0 on HVF ARM (Alexander)
- Add '-d invalid_mem' logging option (Zoltan)
- Create QOM containers explicitly (Peter)
- Rename sysemu/ -> system/ (Philippe)
- Re-orderning of include/exec/ headers (Philippe)
  Move a lot of declarations from these legacy mixed bag headers:
    . "exec/cpu-all.h"
    . "exec/cpu-common.h"
    . "exec/cpu-defs.h"
    . "exec/exec-all.h"
    . "exec/translate-all"
  to these more specific ones:
    . "exec/page-protection.h"
    . "exec/translation-block.h"
    . "user/cpu_loop.h"
    . "user/guest-host.h"
    . "user/page-protection.h"

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* tag 'exec-20241220' of https://github.com/philmd/qemu: (59 commits)
  util/qemu-timer: fix indentation
  meson: Do not define CONFIG_DEVICES on user emulation
  system/accel-ops: Remove unnecessary 'exec/cpu-common.h' header
  system/numa: Remove unnecessary 'exec/cpu-common.h' header
  hw/xen: Remove unnecessary 'exec/cpu-common.h' header
  target/mips: Drop left-over comment about Jazz machine
  target/mips: Remove tswap() calls in semihosting uhi_fstat_cb()
  target/xtensa: Remove tswap() calls in semihosting simcall() helper
  accel/tcg: Un-inline translator_is_same_page()
  accel/tcg: Include missing 'exec/translation-block.h' header
  accel/tcg: Move tcg_cflags_has/set() to 'exec/translation-block.h'
  accel/tcg: Restrict curr_cflags() declaration to 'internal-common.h'
  qemu/coroutine: Include missing 'qemu/atomic.h' header
  exec/translation-block: Include missing 'qemu/atomic.h' header
  accel/tcg: Declare cpu_loop_exit_requested() in 'exec/cpu-common.h'
  exec/cpu-all: Include 'cpu.h' earlier so MMU_USER_IDX is always defined
  target/sparc: Move sparc_restore_state_to_opc() to cpu.c
  target/sparc: Uninline cpu_get_tb_cpu_state()
  target/loongarch: Declare loongarch_cpu_dump_state() locally
  user: Move various declarations out of 'exec/exec-all.h'
  ...

Conflicts:
	hw/char/riscv_htif.c
	hw/intc/riscv_aplic.c
	target/s390x/cpu.c

	Apply sysemu header path changes to not in the pull request.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

1 files changed, 85 insertions, 0 deletions

diff --git a/include/system/memory_mapping.h b/include/system/memory_mapping.h
new file mode 100644
index 0000000000..021e0a6230
--- /dev/null
+++ b/include/system/memory_mapping.h
@@ -0,0 +1,85 @@
+/*
+ * QEMU memory mapping
+ *
+ * Copyright Fujitsu, Corp. 2011, 2012
+ *
+ * Authors:
+ *     Wen Congyang <wency@cn.fujitsu.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.
+ *
+ */
+
+#ifndef MEMORY_MAPPING_H
+#define MEMORY_MAPPING_H
+
+#include "qemu/queue.h"
+#include "exec/cpu-common.h"
+
+typedef struct GuestPhysBlock {
+    /* visible to guest, reflects PCI hole, etc */
+    hwaddr target_start;
+
+    /* implies size */
+    hwaddr target_end;
+
+    /* points into host memory */
+    uint8_t *host_addr;
+
+    /* points to the MemoryRegion that this block belongs to */
+    MemoryRegion *mr;
+
+    QTAILQ_ENTRY(GuestPhysBlock) next;
+} GuestPhysBlock;
+
+/* point-in-time snapshot of guest-visible physical mappings */
+typedef struct GuestPhysBlockList {
+    unsigned num;
+    QTAILQ_HEAD(, GuestPhysBlock) head;
+} GuestPhysBlockList;
+
+/* The physical and virtual address in the memory mapping are contiguous. */
+typedef struct MemoryMapping {
+    hwaddr phys_addr;
+    vaddr virt_addr;
+    ram_addr_t length;
+    QTAILQ_ENTRY(MemoryMapping) next;
+} MemoryMapping;
+
+struct MemoryMappingList {
+    unsigned int num;
+    MemoryMapping *last_mapping;
+    QTAILQ_HEAD(, MemoryMapping) head;
+};
+
+/*
+ * add or merge the memory region [phys_addr, phys_addr + length) into the
+ * memory mapping's list. The region's virtual address starts with virt_addr,
+ * and is contiguous. The list is sorted by phys_addr.
+ */
+void memory_mapping_list_add_merge_sorted(MemoryMappingList *list,
+                                          hwaddr phys_addr,
+                                          hwaddr virt_addr,
+                                          ram_addr_t length);
+
+void memory_mapping_list_free(MemoryMappingList *list);
+
+void memory_mapping_list_init(MemoryMappingList *list);
+
+void guest_phys_blocks_free(GuestPhysBlockList *list);
+void guest_phys_blocks_init(GuestPhysBlockList *list);
+void guest_phys_blocks_append(GuestPhysBlockList *list);
+
+bool qemu_get_guest_memory_mapping(MemoryMappingList *list,
+                                   const GuestPhysBlockList *guest_phys_blocks,
+                                   Error **errp);
+
+/* get guest's memory mapping without do paging(virtual address is 0). */
+void qemu_get_guest_simple_memory_mapping(MemoryMappingList *list,
+                                  const GuestPhysBlockList *guest_phys_blocks);
+
+void memory_mapping_filter(MemoryMappingList *list, int64_t begin,
+                           int64_t length);
+
+#endif