From 20cfe8810d08c99e3fc37be2a5a3355a3a51d208 Mon Sep 17 00:00:00 2001 From: Hu Tao Date: Wed, 2 Apr 2014 15:13:26 +0800 Subject: [PATCH] exec: introduce qemu_ram_unset_idstr() to unset RAMBlock idstr Signed-off-by: Hu Tao Signed-off-by: Paolo Bonzini --- exec.c | 26 +++++++++++++++++++++----- include/exec/cpu-common.h | 1 + 2 files changed, 22 insertions(+), 5 deletions(-) diff --git a/exec.c b/exec.c index 4e179a6f66..6ce989a912 100644 --- a/exec.c +++ b/exec.c @@ -1201,17 +1201,24 @@ static void qemu_ram_setup_dump(void *addr, ram_addr_t size) } } -void qemu_ram_set_idstr(ram_addr_t addr, const char *name, DeviceState *dev) +static RAMBlock *find_ram_block(ram_addr_t addr) { - RAMBlock *new_block, *block; + RAMBlock *block; - new_block = NULL; QTAILQ_FOREACH(block, &ram_list.blocks, next) { if (block->offset == addr) { - new_block = block; - break; + return block; } } + + return NULL; +} + +void qemu_ram_set_idstr(ram_addr_t addr, const char *name, DeviceState *dev) +{ + RAMBlock *new_block = find_ram_block(addr); + RAMBlock *block; + assert(new_block); assert(!new_block->idstr[0]); @@ -1236,6 +1243,15 @@ void qemu_ram_set_idstr(ram_addr_t addr, const char *name, DeviceState *dev) qemu_mutex_unlock_ramlist(); } +void qemu_ram_unset_idstr(ram_addr_t addr) +{ + RAMBlock *block = find_ram_block(addr); + + if (block) { + memset(block->idstr, 0, sizeof(block->idstr)); + } +} + static int memory_try_enable_merging(void *addr, size_t len) { if (!qemu_opt_get_bool(qemu_get_machine_opts(), "mem-merge", true)) { diff --git a/include/exec/cpu-common.h b/include/exec/cpu-common.h index a21b65a893..89ec6404cf 100644 --- a/include/exec/cpu-common.h +++ b/include/exec/cpu-common.h @@ -54,6 +54,7 @@ void qemu_ram_remap(ram_addr_t addr, ram_addr_t length); /* This should not be used by devices. */ MemoryRegion *qemu_ram_addr_from_host(void *ptr, ram_addr_t *ram_addr); void qemu_ram_set_idstr(ram_addr_t addr, const char *name, DeviceState *dev); +void qemu_ram_unset_idstr(ram_addr_t addr); void cpu_physical_memory_rw(hwaddr addr, uint8_t *buf, int len, int is_write); -- 2.11.4.GIT