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-rw-r--r--memory-internal.h143
1 files changed, 143 insertions, 0 deletions
diff --git a/memory-internal.h b/memory-internal.h
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+++ b/memory-internal.h
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+/*
+ * Declarations for obsolete exec.c functions
+ *
+ * Copyright 2011 Red Hat, Inc. and/or its affiliates
+ *
+ * Authors:
+ * Avi Kivity <avi@redhat.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.
+ *
+ */
+
+/*
+ * This header is for use by exec.c and memory.c ONLY. Do not include it.
+ * The functions declared here will be removed soon.
+ */
+
+#ifndef MEMORY_INTERNAL_H
+#define MEMORY_INTERNAL_H
+
+#ifndef CONFIG_USER_ONLY
+#include "hw/xen.h"
+
+typedef struct PhysPageEntry PhysPageEntry;
+
+struct PhysPageEntry {
+ uint16_t is_leaf : 1;
+ /* index into phys_sections (is_leaf) or phys_map_nodes (!is_leaf) */
+ uint16_t ptr : 15;
+};
+
+typedef struct AddressSpaceDispatch AddressSpaceDispatch;
+
+struct AddressSpaceDispatch {
+ /* This is a multi-level map on the physical address space.
+ * The bottom level has pointers to MemoryRegionSections.
+ */
+ PhysPageEntry phys_map;
+ MemoryListener listener;
+};
+
+void address_space_init_dispatch(AddressSpace *as);
+void address_space_destroy_dispatch(AddressSpace *as);
+
+ram_addr_t qemu_ram_alloc_from_ptr(ram_addr_t size, void *host,
+ MemoryRegion *mr);
+ram_addr_t qemu_ram_alloc(ram_addr_t size, MemoryRegion *mr);
+void qemu_ram_free(ram_addr_t addr);
+void qemu_ram_free_from_ptr(ram_addr_t addr);
+
+struct MemoryRegion;
+struct MemoryRegionSection;
+
+void qemu_register_coalesced_mmio(target_phys_addr_t addr, ram_addr_t size);
+void qemu_unregister_coalesced_mmio(target_phys_addr_t addr, ram_addr_t size);
+
+int cpu_physical_memory_set_dirty_tracking(int enable);
+
+#define VGA_DIRTY_FLAG 0x01
+#define CODE_DIRTY_FLAG 0x02
+#define MIGRATION_DIRTY_FLAG 0x08
+
+static inline int cpu_physical_memory_get_dirty_flags(ram_addr_t addr)
+{
+ return ram_list.phys_dirty[addr >> TARGET_PAGE_BITS];
+}
+
+/* read dirty bit (return 0 or 1) */
+static inline int cpu_physical_memory_is_dirty(ram_addr_t addr)
+{
+ return cpu_physical_memory_get_dirty_flags(addr) == 0xff;
+}
+
+static inline int cpu_physical_memory_get_dirty(ram_addr_t start,
+ ram_addr_t length,
+ int dirty_flags)
+{
+ int ret = 0;
+ ram_addr_t addr, end;
+
+ end = TARGET_PAGE_ALIGN(start + length);
+ start &= TARGET_PAGE_MASK;
+ for (addr = start; addr < end; addr += TARGET_PAGE_SIZE) {
+ ret |= cpu_physical_memory_get_dirty_flags(addr) & dirty_flags;
+ }
+ return ret;
+}
+
+static inline int cpu_physical_memory_set_dirty_flags(ram_addr_t addr,
+ int dirty_flags)
+{
+ return ram_list.phys_dirty[addr >> TARGET_PAGE_BITS] |= dirty_flags;
+}
+
+static inline void cpu_physical_memory_set_dirty(ram_addr_t addr)
+{
+ cpu_physical_memory_set_dirty_flags(addr, 0xff);
+}
+
+static inline int cpu_physical_memory_clear_dirty_flags(ram_addr_t addr,
+ int dirty_flags)
+{
+ int mask = ~dirty_flags;
+
+ return ram_list.phys_dirty[addr >> TARGET_PAGE_BITS] &= mask;
+}
+
+static inline void cpu_physical_memory_set_dirty_range(ram_addr_t start,
+ ram_addr_t length,
+ int dirty_flags)
+{
+ ram_addr_t addr, end;
+
+ end = TARGET_PAGE_ALIGN(start + length);
+ start &= TARGET_PAGE_MASK;
+ for (addr = start; addr < end; addr += TARGET_PAGE_SIZE) {
+ cpu_physical_memory_set_dirty_flags(addr, dirty_flags);
+ }
+ xen_modified_memory(addr, length);
+}
+
+static inline void cpu_physical_memory_mask_dirty_range(ram_addr_t start,
+ ram_addr_t length,
+ int dirty_flags)
+{
+ ram_addr_t addr, end;
+
+ end = TARGET_PAGE_ALIGN(start + length);
+ start &= TARGET_PAGE_MASK;
+ for (addr = start; addr < end; addr += TARGET_PAGE_SIZE) {
+ cpu_physical_memory_clear_dirty_flags(addr, dirty_flags);
+ }
+}
+
+void cpu_physical_memory_reset_dirty(ram_addr_t start, ram_addr_t end,
+ int dirty_flags);
+
+extern const IORangeOps memory_region_iorange_ops;
+
+#endif
+
+#endif