Bug 29404 - Hygon: Add sysfs interface to provide the CSV3 cma info timely
Summary: Hygon: Add sysfs interface to provide the CSV3 cma info timely
Status: NEW
Alias: None
Product: ANCK 6.6 Dev
Classification: ANCK
Component: X86 (show other bugs) X86
Version: unspecified
Hardware: All Linux
: P3-Medium S3-normal
Target Milestone: ---
Assignee: Guanjun
QA Contact: shuming
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2026-01-11 15:15 UTC by wojiaohanliyang
Modified: 2026-01-11 15:15 UTC (History)
3 users (show)

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Description wojiaohanliyang hygon_group 2026-01-11 15:15:56 UTC 
Description of problem:

The sysfs interface will convenience the admin/user to deploy CSV3 VMs.

Through the file system interface "/sys/kernel/mm/csv3_cma/mem_info", detailed usage information of CSV3 memory can be obtained, such as the memory occupied by the CSV3 guest Nested Page Table (NPT), shared memory and private memory.

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