Re: git: 181afaaaee00 - main - vmm: implement VM_CAP_MASK_HWINTR on AMD CPUs

In reply to: John Baldwin : "git: 181afaaaee00 - main - vmm: implement VM_CAP_MASK_HWINTR on AMD CPUs"
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From: John Baldwin <jhb_at_FreeBSD.org>
Date: Thu, 07 Dec 2023 23:20:10 UTC

On 12/7/23 3:17 PM, John Baldwin wrote:
> The branch main has been updated by jhb:
> 
> URL: https://cgit.FreeBSD.org/src/commit/?id=181afaaaee0025f948346fe8b9ec5356a0cdef97
> 
> commit 181afaaaee0025f948346fe8b9ec5356a0cdef97
> Author:     Bojan Novković <bojan.novkovic@fer.hr>
> AuthorDate: 2023-12-07 23:08:58 +0000
> Commit:     John Baldwin <jhb@FreeBSD.org>
> CommitDate: 2023-12-07 23:11:04 +0000
> 
>      vmm: implement VM_CAP_MASK_HWINTR on AMD CPUs
>      
>      This patch implements the interrupt blocking VM capability on AMD
>      CPUs.  Implementing this capability allows the GDB stub to single-step
>      a virtual machine without landing inside interrupt handlers.
>      
>      Reviewed by:    jhb, corvink
>      Sponsored by:   Google, Inc. (GSoC 2022)
>      Differential Revision:  https://reviews.freebsd.org/D42299

Bojan has one more change in the userspace hypervisor to make use of
these kernel changes.  It needs a few more tweaks, but I felt the kernel
bits were ready to go.

Remaining change: https://reviews.freebsd.org/D42298

-- 
John Baldwin