Bug 2005 - Backport Bus lock #DB KVM patches from Linux kernel
Summary: Backport Bus lock #DB KVM patches from Linux kernel
Status: NEW
Alias: None
Product: ANCK 5.10 Dev
Classification: ANCK
Component: virt (show other bugs) virt
Version: unspecified
Hardware: x86_64 Linux
: P3-Medium S3-normal
Target Milestone: ---
Assignee: maqiao
QA Contact: shuming
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Reported: 2022-08-30 11:14 UTC by tristone
Modified: 2022-08-30 11:14 UTC (History)
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Description tristone intel_group 2022-08-30 11:14:57 UTC 
Description of problem:
Bus lock debug exception is an ability to notify the kernel by an #DB trap after the instruction acquires a bus lock and is executed when CPL>0. This allows the kernel to enforce user application throttling or mitigations. Backport Bus lock #DB KVM patches to enable this feature in the guest.


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