On Thu, 08 Aug 2024 06:29:33 +0000, Ravi Bangoria wrote:
> Add Bus Lock Detect (called Bus Lock Trap in AMD docs) support for AMD
> platforms. Bus Lock Detect is enumerated with CPUID Fn0000_0007_ECX_x0
> bit [24 / BUSLOCKTRAP]. It can be enabled through MSR_IA32_DEBUGCTLMSR.
> When enabled, hardware clears DR6[11] and raises a #DB exception on
> occurrence of Bus Lock if CPL > 0. More detail about the feature can be
> found in AMD APM:
>
> [...]
Applied patch 3 to kvm-x86 fixes, thanks!
[3/4] KVM: SVM: Don't advertise Bus Lock Detect to guest if SVM support is missing
https://github.com/kvm-x86/linux/commit/54950bfe2b69
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https://github.com/kvm-x86/linux/tree/next
