1 Star 0 Fork 131

KuhnChen/src-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
target-arm-Use-FIELD-macros-for-clearing-ID_DFR0-PER.patch 1.24 KB
一键复制 编辑 原始数据 按行查看 历史
From f54cdca97bf86f5ca1df8471bc229b89797b287e Mon Sep 17 00:00:00 2001
From: Peter Maydell <peter.maydell@linaro.org>
Date: Fri, 14 Feb 2020 17:51:02 +0000
Subject: [PATCH 04/13] target/arm: Use FIELD macros for clearing ID_DFR0
PERFMON field
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
We already define FIELD macros for ID_DFR0, so use them in the
one place where we're doing direct bit value manipulation.
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20200214175116.9164-8-peter.maydell@linaro.org
---
target/arm/cpu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/target/arm/cpu.c b/target/arm/cpu.c
index dbd05e01..6ad211b1 100644
--- a/target/arm/cpu.c
+++ b/target/arm/cpu.c
@@ -1523,7 +1523,7 @@ static void arm_cpu_realizefn(DeviceState *dev, Error **errp)
#endif
} else {
cpu->id_aa64dfr0 = FIELD_DP64(cpu->id_aa64dfr0, ID_AA64DFR0, PMUVER, 0);
- cpu->id_dfr0 &= ~(0xf << 24);
+ cpu->id_dfr0 = FIELD_DP32(cpu->id_dfr0, ID_DFR0, PERFMON, 0);
cpu->pmceid0 = 0;
cpu->pmceid1 = 0;
}
--
2.25.1
Loading...
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/kuhnchen18/src-qemu.git
git@gitee.com:kuhnchen18/src-qemu.git
kuhnchen18
src-qemu
src-qemu
master

搜索帮助