From: "Gerd Hoffmann" <kraxel@redhat.com>
To: Ard Biesheuvel <ardb@kernel.org>
Cc: Pedro Falcato <pedro.falcato@gmail.com>,
devel@edk2.groups.io, Jiewen Yao <jiewen.yao@intel.com>,
Michael Brown <mcb30@ipxe.org>,
Tom Lendacky <thomas.lendacky@amd.com>,
Michael Roth <michael.roth@amd.com>
Subject: Re: [edk2-devel] [RFC/RFT PATCH] OvmfPkg/IoMmuDxe: don't rely on TPLs for re-entrancy
Date: Mon, 28 Aug 2023 11:16:24 +0200 [thread overview]
Message-ID: <4bd53ehby2cto5n2venjfkucot5ayj2xtsl7z6diegh6llrpm2@tj5oh6txxjck> (raw)
In-Reply-To: <CAMj1kXE-B4_T+kAMpmS0ZX2K6Jb08kn+2dMm1KgYeCm8sE_dPQ@mail.gmail.com>
Hi,
> I have tried the patch below, and I don't see any slowdowns with or
> without the patch, running both DEBUG and RELEASE builds under
> ordinary KVM/nested-virt. Note that the change in the first hunk will
> cause the ASSERT()s removed in the other hunks to trigger so the code
> is definitely being exercised.
QE team tested again with fresh builds, the slowdown isn't there any
more. Not fully clear where it came from, but most likely not from
this patch.
Only 20 successful test runs so far, which a good start, but with
a reproduce rate below 20% not that much. I'll post an update
when it I get more results.
take care,
Gerd
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next prev parent reply other threads:[~2023-08-28 9:16 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-07-20 13:45 [edk2-devel] [RFC/RFT PATCH] OvmfPkg/IoMmuDxe: don't rely on TPLs for re-entrancy Ard Biesheuvel
2023-07-21 22:55 ` Pedro Falcato
2023-07-24 14:21 ` Ard Biesheuvel
2023-07-24 17:08 ` Pedro Falcato
2023-08-22 6:25 ` Gerd Hoffmann
2023-08-22 7:57 ` Ard Biesheuvel
2023-08-23 11:07 ` Gerd Hoffmann
2023-08-23 15:11 ` Ard Biesheuvel
2023-08-23 17:18 ` Gerd Hoffmann
2023-08-23 18:10 ` Pedro Falcato
2023-08-24 8:06 ` Gerd Hoffmann
2023-08-24 10:31 ` Ard Biesheuvel
2023-08-28 9:16 ` Gerd Hoffmann [this message]
2023-08-28 11:13 ` Ard Biesheuvel
2023-08-31 16:01 ` Ard Biesheuvel
2023-09-04 11:45 ` Gerd Hoffmann
2023-09-04 12:06 ` Ard Biesheuvel
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