Bug 6084 - Optimize KVM error handling on VMGEXIT
Summary: Optimize KVM error handling on VMGEXIT
Status: NEW
Alias: None
Product: ANCK 5.10 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
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Reported: 2023-08-03 14:27 UTC by wojiaohanliyang
Modified: 2023-08-08 11:10 UTC (History)
2 users (show)

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Description wojiaohanliyang hygon_group 2023-08-03 14:27:45 UTC 
Description of problem:

This bugzilla mainly addresses the following issues:
    a. When a CSV2 guest exits due to string IO, KVM will setup a scratch buffer, the errors caused by the setting process should be accurately reported to userspace.
    b. If a CSV2 guest requests terminate, KVM should also report it to userspace.
    c. VMGEXIT can be executed in the userspace of CSV2 guests, this unexpected VMGEXIT contains messy data in ghcb page which can lead to validation failure on the KVM side.

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Comment 1 小龙 admin 2023-08-08 11:10:24 UTC 
The PR Link: https://gitee.com/anolis/cloud-kernel/pulls/2020