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[Qemu-devel] [PATCH] migration: don't set MIGRATION dirty range for igno
From: |
Wei Yang |
Subject: |
[Qemu-devel] [PATCH] migration: don't set MIGRATION dirty range for ignored block |
Date: |
Sat, 4 May 2019 13:42:55 +0800 |
The ignored blocks are not migrated and those ranges are not used.
Signed-off-by: Wei Yang <address@hidden>
---
exec.c | 4 +++-
include/exec/ram_addr.h | 2 ++
migration/ram.c | 2 +-
3 files changed, 6 insertions(+), 2 deletions(-)
diff --git a/exec.c b/exec.c
index 86a38d3b3b..97da155c12 100644
--- a/exec.c
+++ b/exec.c
@@ -2192,6 +2192,8 @@ static void ram_block_add(RAMBlock *new_block, Error
**errp, bool shared)
RAMBlock *last_block = NULL;
ram_addr_t old_ram_size, new_ram_size;
Error *err = NULL;
+ uint8_t dirty_memory_clients = ramblock_is_ignored(new_block) ?
+ DIRTY_CLIENTS_NOMIG : DIRTY_CLIENTS_ALL;
old_ram_size = last_ram_page();
@@ -2252,7 +2254,7 @@ static void ram_block_add(RAMBlock *new_block, Error
**errp, bool shared)
cpu_physical_memory_set_dirty_range(new_block->offset,
new_block->used_length,
- DIRTY_CLIENTS_ALL);
+ dirty_memory_clients);
if (new_block->host) {
qemu_ram_setup_dump(new_block->host, new_block->max_length);
diff --git a/include/exec/ram_addr.h b/include/exec/ram_addr.h
index a7c81bdb32..4765435fb8 100644
--- a/include/exec/ram_addr.h
+++ b/include/exec/ram_addr.h
@@ -72,6 +72,7 @@ static inline unsigned long int
ramblock_recv_bitmap_offset(void *host_addr,
}
bool ramblock_is_pmem(RAMBlock *rb);
+bool ramblock_is_ignored(RAMBlock *rb);
long qemu_getrampagesize(void);
@@ -117,6 +118,7 @@ int qemu_ram_resize(RAMBlock *block, ram_addr_t newsize,
Error **errp);
#define DIRTY_CLIENTS_ALL ((1 << DIRTY_MEMORY_NUM) - 1)
#define DIRTY_CLIENTS_NOCODE (DIRTY_CLIENTS_ALL & ~(1 << DIRTY_MEMORY_CODE))
+#define DIRTY_CLIENTS_NOMIG (DIRTY_CLIENTS_ALL & ~(1 <<
DIRTY_MEMORY_MIGRATION))
void tb_invalidate_phys_range(ram_addr_t start, ram_addr_t end);
diff --git a/migration/ram.c b/migration/ram.c
index 1def8122e9..44525e3816 100644
--- a/migration/ram.c
+++ b/migration/ram.c
@@ -159,7 +159,7 @@ out:
return ret;
}
-static bool ramblock_is_ignored(RAMBlock *block)
+bool ramblock_is_ignored(RAMBlock *block)
{
return !qemu_ram_is_migratable(block) ||
(migrate_ignore_shared() && qemu_ram_is_shared(block));
--
2.19.1
- [Qemu-devel] [PATCH] migration: don't set MIGRATION dirty range for ignored block,
Wei Yang <=