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Date: Mon, 27 Jul 2026 13:23:03 -0600
From: Tycho Andersen <tycho@kernel.org>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: linux-kernel@vger.kernel.org, kvm@vger.kernel.org, 
	Vitaly Kuznetsov <vkuznets@redhat.com>, Alexander Lougovski <alougovsk@redhat.com>, 
	Tom Lendacky <thomas.lendacky@amd.com>, Borislav Petkov <bp@alien8.de>
Subject: Re: [PATCH] KVM: SVM: make svm_flush_tlb_gva do a full asid flush if
 NPT enabled
Message-ID: <ameuTMWJUZfleIbk@tycho.pizza>
References: <20260723094419.630204-1-pbonzini@redhat.com>
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In-Reply-To: <20260723094419.630204-1-pbonzini@redhat.com>

Hi all,

On Thu, Jul 23, 2026 at 11:44:19AM +0200, Paolo Bonzini wrote:
> As to the workload, Alexander threw more or less everything at the same
> time at the VM:
> 
> - a full Windows Defender scan every 30 minutes
> 
> - a disk I/O job
> 
> - a loop doing repeated mmap of system files (mostly to hope that
>   it triggers some consistency check in the Windows memory manager)
> 
> - SQL Express 2022 + StressDB (1.6M rows), with the host doing queries
>   (75% write/25% read) via sqlcmd

Can you share the code for the mmap + disk io + DB content generator?

We're looking at this and would like to reproduce.

Thanks,

Tycho