From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:51974) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WVFOS-0008Mh-AF for qemu-devel@nongnu.org; Wed, 02 Apr 2014 03:15:32 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1WVFON-0003ab-Lq for qemu-devel@nongnu.org; Wed, 02 Apr 2014 03:15:28 -0400 Received: from [59.151.112.132] (port=38171 helo=heian.cn.fujitsu.com) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WVFON-0003D0-82 for qemu-devel@nongnu.org; Wed, 02 Apr 2014 03:15:23 -0400 From: Hu Tao Date: Wed, 2 Apr 2014 15:13:26 +0800 Message-ID: In-Reply-To: References: MIME-Version: 1.0 Content-Type: text/plain Subject: [Qemu-devel] [PATCH 1/2] exec: introduce qemu_ram_unset_idstr() to unset RAMBlock idstr List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Igor Mammedov , Paolo Bonzini Signed-off-by: Hu Tao --- 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 91513c6..cbf7923 100644 --- a/exec.c +++ b/exec.c @@ -1202,17 +1202,24 @@ 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]); @@ -1237,6 +1244,15 @@ 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 a21b65a..89ec640 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); -- 1.8.5.2.229.g4448466