Re: [PATCH v9 00/22] Enable FRED with KVM VMX

[Sean Christopherson]

On Sun, Oct 26, 2025, Xin Li (Intel) wrote:
> Xin Li (18):
>   KVM: VMX: Enable support for secondary VM exit controls
>   KVM: VMX: Initialize VM entry/exit FRED controls in vmcs_config
>   KVM: VMX: Disable FRED if FRED consistency checks fail
>   KVM: VMX: Initialize VMCS FRED fields
>   KVM: VMX: Set FRED MSR intercepts
>   KVM: VMX: Save/restore guest FRED RSP0
>   KVM: VMX: Add support for saving and restoring FRED MSRs
>   KVM: x86: Add a helper to detect if FRED is enabled for a vCPU
>   KVM: VMX: Virtualize FRED event_data
>   KVM: VMX: Virtualize FRED nested exception tracking
>   KVM: x86: Mark CR4.FRED as not reserved
>   KVM: VMX: Dump FRED context in dump_vmcs()
>   KVM: x86: Advertise support for FRED
>   KVM: nVMX: Enable support for secondary VM exit controls
>   KVM: nVMX: Handle FRED VMCS fields in nested VMX context
>   KVM: nVMX: Validate FRED-related VMCS fields
>   KVM: nVMX: Guard SHADOW_FIELD_R[OW] macros with VMX feature checks
>   KVM: nVMX: Enable VMX FRED controls
> 
> Xin Li (Intel) (4):

I'm guessing the two different "names" isn't intended?

>   x86/cea: Prefix event stack names with ESTACK_
>   x86/cea: Use array indexing to simplify exception stack access
>   x86/cea: Export __this_cpu_ist_top_va() to KVM
>   KVM: x86: Save/restore the nested flag of an exception