From mboxrd@z Thu Jan  1 00:00:00 1970
From: Joerg Roedel <joro@8bytes.org>
Subject: Re: [RFC PATCH v2.1] x86/sev-es: Handle NMI State
Date: Fri, 20 Mar 2020 20:42:52 +0100
Message-ID: <20200320194251.GI5122@8bytes.org>
References: <20200319091407.1481-1-joro@8bytes.org>
 <20200319091407.1481-71-joro@8bytes.org>
 <CALCETrUOQneBHjoZkP-7T5PDijb=WOyv7xF7TD0GLR2Aw77vyA@mail.gmail.com>
 <20200320131707.GF5122@8bytes.org>
 <7d1ee9d9-d333-4529-b21b-19758c99e029@intel.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Return-path: <linux-kernel-owner@vger.kernel.org>
Content-Disposition: inline
In-Reply-To: <7d1ee9d9-d333-4529-b21b-19758c99e029@intel.com>
Sender: linux-kernel-owner@vger.kernel.org
To: Dave Hansen <dave.hansen@intel.com>
Cc: Andy Lutomirski <luto@kernel.org>, X86 ML <x86@kernel.org>, "H. Peter Anvin" <hpa@zytor.com>, Dave Hansen <dave.hansen@linux.intel.com>, Peter Zijlstra <peterz@infradead.org>, Thomas Hellstrom <thellstrom@vmware.com>, Jiri Slaby <jslaby@suse.cz>, Dan Williams <dan.j.williams@intel.com>, Tom Lendacky <thomas.lendacky@amd.com>, Juergen Gross <jgross@suse.com>, Kees Cook <keescook@chromium.org>, LKML <linux-kernel@vger.kernel.org>, kvm list <kvm@vger.kernel.org>, Linux Virtualization <virtualization@lists.linux-foundation.org>, Joerg Roedel <jroedel@suse.de>
List-Id: virtualization@lists.linuxfoundation.org

On Fri, Mar 20, 2020 at 07:42:09AM -0700, Dave Hansen wrote:
> FWIW, perf plus the x86 selftests run in a big loop was my best way of
> stressing the NMI path when we mucked with it for PTI.  The selftests
> make sure to hit some of the more rare entry/exit paths.

Yeah, I ran the x86 selftests in an SEV-ES guest on-top of these
patches, that works. But doing this together with 'perf top' is also on
the list of tests to do.

Regards,

	Joerg