1 Star 0 Fork 121

ctyunsystem/qemu

forked from src-openEuler/qemu 
加入 Gitee
与超过 1200万 开发者一起发现、参与优秀开源项目,私有仓库也完全免费 :)
免费加入
文件
该仓库未声明开源许可证文件(LICENSE),使用请关注具体项目描述及其代码上游依赖。
克隆/下载
dma-Let-st-_dma-propagate-MemTxResult.patch 2.72 KB
一键复制 编辑 原始数据 按行查看 历史
yezengruan 提交于 2022-06-09 17:10 . fix CVE-2021-3611
From 323fc6abd2b727d888acaec1788bb7b7aefa295b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= <philmd@redhat.com>
Date: Fri, 17 Dec 2021 23:56:14 +0100
Subject: [PATCH 17/25] dma: Let st*_dma() propagate MemTxResult
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
dma_memory_write() returns a MemTxResult type. Do not discard
it, return it to the caller.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20211223115554.3155328-18-philmd@redhat.com>
---
include/sysemu/dma.h | 20 ++++++++++----------
1 file changed, 10 insertions(+), 10 deletions(-)
diff --git a/include/sysemu/dma.h b/include/sysemu/dma.h
index d1635f5587..895044d747 100644
--- a/include/sysemu/dma.h
+++ b/include/sysemu/dma.h
@@ -248,13 +248,13 @@ static inline void dma_memory_unmap(AddressSpace *as,
dma_memory_read(as, addr, &val, (_bits) / 8, attrs); \
return _end##_bits##_to_cpu(val); \
} \
- static inline void st##_sname##_##_end##_dma(AddressSpace *as, \
- dma_addr_t addr, \
- uint##_bits##_t val, \
- MemTxAttrs attrs) \
- { \
- val = cpu_to_##_end##_bits(val); \
- dma_memory_write(as, addr, &val, (_bits) / 8, attrs); \
+ static inline MemTxResult st##_sname##_##_end##_dma(AddressSpace *as, \
+ dma_addr_t addr, \
+ uint##_bits##_t val, \
+ MemTxAttrs attrs) \
+ { \
+ val = cpu_to_##_end##_bits(val); \
+ return dma_memory_write(as, addr, &val, (_bits) / 8, attrs); \
}
static inline uint8_t ldub_dma(AddressSpace *as, dma_addr_t addr, MemTxAttrs attrs)
@@ -265,10 +265,10 @@ static inline uint8_t ldub_dma(AddressSpace *as, dma_addr_t addr, MemTxAttrs att
return val;
}
-static inline void stb_dma(AddressSpace *as, dma_addr_t addr,
- uint8_t val, MemTxAttrs attrs)
+static inline MemTxResult stb_dma(AddressSpace *as, dma_addr_t addr,
+ uint8_t val, MemTxAttrs attrs)
{
- dma_memory_write(as, addr, &val, 1, attrs);
+ return dma_memory_write(as, addr, &val, 1, attrs);
}
DEFINE_LDST_DMA(uw, w, 16, le);
--
2.27.0
马建仓 AI 助手
尝试更多
代码解读
代码找茬
代码优化
1
https://gitee.com/ctyunsystem/qemu.git
git@gitee.com:ctyunsystem/qemu.git
ctyunsystem
qemu
qemu
master

搜索帮助