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system/physmem: Extract API out of 'system/ram_addr.h' header

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Very few files use the Physical Memory API. Declare its
methods in their own header: "system/physmem.h".

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Message-Id: <20251001175448.18933-19-philmd@linaro.org>
This commit is contained in:
Philippe Mathieu-Daudé 2025-09-30 09:08:54 +02:00
parent aa60bdb700
commit 4db362f68c
12 changed files with 63 additions and 44 deletions
Download patch file Download diff file Expand all files Collapse all files

1
MAINTAINERS
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@ -3223,6 +3223,7 @@ S: Supported
F: include/system/ioport.h
F: include/exec/memop.h
F: include/system/memory.h
F: include/system/physmem.h
F: include/system/ram_addr.h
F: include/system/ramblock.h
F: include/system/memory_mapping.h

2
accel/kvm/kvm-all.c
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@ -32,13 +32,13 @@
#include "system/runstate.h"
#include "system/cpus.h"
#include "system/accel-blocker.h"
#include "system/physmem.h"
#include "system/ramblock.h"
#include "accel/accel-ops.h"
#include "qemu/bswap.h"
#include "exec/tswap.h"
#include "exec/target_page.h"
#include "system/memory.h"
#include "system/ram_addr.h"
#include "qemu/event_notifier.h"
#include "qemu/main-loop.h"
#include "trace.h"

1
accel/tcg/cputlb.c
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@ -25,6 +25,7 @@
#include "accel/tcg/probe.h"
#include "exec/page-protection.h"
#include "system/memory.h"
#include "system/physmem.h"
#include "accel/tcg/cpu-ldst-common.h"
#include "accel/tcg/cpu-mmu-index.h"
#include "exec/cputlb.h"

2
hw/vfio/container-legacy.c
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@ -25,7 +25,7 @@
#include "hw/vfio/vfio-device.h"
#include "system/address-spaces.h"
#include "system/memory.h"
#include "system/ram_addr.h"
#include "system/physmem.h"
#include "qemu/error-report.h"
#include "qemu/range.h"
#include "system/reset.h"

1
hw/vfio/container.c
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@ -20,6 +20,7 @@
#include "qemu/error-report.h"
#include "hw/vfio/vfio-container.h"
#include "hw/vfio/vfio-device.h" /* vfio_device_reset_handler */
#include "system/physmem.h"
#include "system/reset.h"
#include "vfio-helpers.h"

1
hw/vfio/listener.c
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@ -30,7 +30,6 @@
#include "hw/vfio/pci.h"
#include "system/address-spaces.h"
#include "system/memory.h"
#include "system/ram_addr.h"
#include "hw/hw.h"
#include "qemu/error-report.h"
#include "qemu/main-loop.h"

54
include/system/physmem.h Normal file
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@ -0,0 +1,54 @@
/*
* QEMU physical memory interfaces (target independent).
*
* Copyright (c) 2003 Fabrice Bellard
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#ifndef QEMU_SYSTEM_PHYSMEM_H
#define QEMU_SYSTEM_PHYSMEM_H
#include "exec/hwaddr.h"
#include "exec/ramlist.h"
#define DIRTY_CLIENTS_ALL ((1 << DIRTY_MEMORY_NUM) - 1)
#define DIRTY_CLIENTS_NOCODE (DIRTY_CLIENTS_ALL & ~(1 << DIRTY_MEMORY_CODE))
bool physical_memory_get_dirty_flag(ram_addr_t addr, unsigned client);
bool physical_memory_is_clean(ram_addr_t addr);
uint8_t physical_memory_range_includes_clean(ram_addr_t start,
ram_addr_t length,
uint8_t mask);
void physical_memory_set_dirty_flag(ram_addr_t addr, unsigned client);
void physical_memory_set_dirty_range(ram_addr_t start, ram_addr_t length,
uint8_t mask);
/*
* Contrary to physical_memory_sync_dirty_bitmap() this function returns
* the number of dirty pages in @bitmap passed as argument. On the other hand,
* physical_memory_sync_dirty_bitmap() returns newly dirtied pages that
* weren't set in the global migration bitmap.
*/
uint64_t physical_memory_set_dirty_lebitmap(unsigned long *bitmap,
ram_addr_t start,
ram_addr_t pages);
void physical_memory_dirty_bits_cleared(ram_addr_t start, ram_addr_t length);
bool physical_memory_test_and_clear_dirty(ram_addr_t start,
ram_addr_t length,
unsigned client);
DirtyBitmapSnapshot *
physical_memory_snapshot_and_clear_dirty(MemoryRegion *mr, hwaddr offset,
hwaddr length, unsigned client);
bool physical_memory_snapshot_get_dirty(DirtyBitmapSnapshot *snap,
ram_addr_t start,
ram_addr_t length);
#endif

40
include/system/ram_addr.h
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@ -19,7 +19,6 @@
#ifndef SYSTEM_RAM_ADDR_H
#define SYSTEM_RAM_ADDR_H
#include "exec/ramlist.h"
#include "system/ramblock.h"
#include "exec/target_page.h"
#include "exec/hwaddr.h"
@ -133,43 +132,4 @@ static inline void qemu_ram_block_writeback(RAMBlock *block)
qemu_ram_msync(block, 0, block->used_length);
}
#define DIRTY_CLIENTS_ALL ((1 << DIRTY_MEMORY_NUM) - 1)
#define DIRTY_CLIENTS_NOCODE (DIRTY_CLIENTS_ALL & ~(1 << DIRTY_MEMORY_CODE))
bool physical_memory_get_dirty_flag(ram_addr_t addr, unsigned client);
bool physical_memory_is_clean(ram_addr_t addr);
uint8_t physical_memory_range_includes_clean(ram_addr_t start,
ram_addr_t length,
uint8_t mask);
void physical_memory_set_dirty_flag(ram_addr_t addr, unsigned client);
void physical_memory_set_dirty_range(ram_addr_t start, ram_addr_t length,
uint8_t mask);
/*
* Contrary to physical_memory_sync_dirty_bitmap() this function returns
* the number of dirty pages in @bitmap passed as argument. On the other hand,
* physical_memory_sync_dirty_bitmap() returns newly dirtied pages that
* weren't set in the global migration bitmap.
*/
uint64_t physical_memory_set_dirty_lebitmap(unsigned long *bitmap,
ram_addr_t start,
ram_addr_t pages);
void physical_memory_dirty_bits_cleared(ram_addr_t start, ram_addr_t length);
bool physical_memory_test_and_clear_dirty(ram_addr_t start,
ram_addr_t length,
unsigned client);
DirtyBitmapSnapshot *physical_memory_snapshot_and_clear_dirty
(MemoryRegion *mr, hwaddr offset, hwaddr length, unsigned client);
bool physical_memory_snapshot_get_dirty(DirtyBitmapSnapshot *snap,
ram_addr_t start,
ram_addr_t length);
#endif

1
migration/ram.c
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@ -53,6 +53,7 @@
#include "qemu/rcu_queue.h"
#include "migration/colo.h"
#include "system/cpu-throttle.h"
#include "system/physmem.h"
#include "system/ramblock.h"
#include "savevm.h"
#include "qemu/iov.h"

1
system/memory.c
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@ -25,6 +25,7 @@
#include "qemu/target-info.h"
#include "qom/object.h"
#include "trace.h"
#include "system/physmem.h"
#include "system/ram_addr.h"
#include "system/kvm.h"
#include "system/runstate.h"

1
system/physmem.c
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@ -43,6 +43,7 @@
#include "system/kvm.h"
#include "system/tcg.h"
#include "system/qtest.h"
#include "system/physmem.h"
#include "system/ramblock.h"
#include "qemu/timer.h"
#include "qemu/config-file.h"

2
target/arm/tcg/mte_helper.c
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@ -27,7 +27,7 @@
#include "user/cpu_loop.h"
#include "user/page-protection.h"
#else
#include "system/ram_addr.h"
#include "system/physmem.h"
#endif
#include "accel/tcg/cpu-ldst.h"
#include "accel/tcg/probe.h"