Bug 5610 - smmu支持RMR
Summary: smmu支持RMR
Status: NEW
Alias: None
Product: ANCK 5.10 Dev
Classification: ANCK
Component: ARM (show other bugs) ARM
Version: unspecified
Hardware: All Linux
: P3-Medium S3-normal
Target Milestone: ---
Assignee: baolinwang
QA Contact: shuming
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Reported: 2023-06-26 14:29 UTC by fghui_kernel
Modified: 2023-08-01 21:18 UTC (History)
2 users (show)

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Description fghui_kernel 2023-06-26 14:29:00 UTC 
Description of problem:
M1 mctp模块，在SMMU打开时，address tranlate造成消息无法写入到正确地址。
M1 在bios的Iort表新增Reserved Memory Region表项，kernel需要增加相应解析模块；

5.10内核目前没有Reserve Memory Region解析模块代码，相应patch
https://lore.kernel.org/linux-arm-kernel/20201119121150.3316-1-shameerali.kolothum.thodi@huawei.com/

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Comment 1 小龙 admin 2023-08-01 21:18:30 UTC 
The PR Link: https://gitee.com/anolis/cloud-kernel/pulls/1980