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From: Andreas Rammhold <andi@notmuch.email>
To: Ricardo Neri <ricardo.neri-calderon@linux.intel.com>
Cc: Brendan Shanks <bshanks@codeweavers.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
	x86@kernel.org, "H. Peter Anvin" <hpa@zytor.com>,
	"Eric W. Biederman" <ebiederm@xmission.com>,
	Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
	Babu Moger <Babu.Moger@amd.com>,
	Kefeng Wang <wangkefeng.wang@huawei.com>,
	Jason Yan <yanaijie@huawei.com>,
	linux-kernel@vger.kernel.org
Subject: Re: umip: AMD Ryzen 3900X, pagefault after emulate SLDT/SIDT instruction
Date: Sat, 23 May 2020 04:17:39 +0200	[thread overview]
Message-ID: <20200523021739.bbq5m6ze63ctouh6@wrt> (raw)
In-Reply-To: <20200519194320.GA25138@ranerica-svr.sc.intel.com>

On 12:43 19.05.20, Ricardo Neri wrote:
> I have a patch for this already that I wrote for testing purposes:
> https://github.com/ricardon/tip/commit/1692889cb3f8accb523d44b682458e234b93be50
> Perhaps it can be used as a starting point? Not sure what the spoofing
> value should be, though. Perhaps 0?

I tried the above patch (in modified/rebased version; hope that didn't
kill it [0]). The results are negative, as without the patch.

[0] https://github.com/andir/linux/commit/bda858f44a860762bc484da62833f57462220874

  parent reply	other threads:[~2020-05-23  2:17 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-19 14:38 umip: AMD Ryzen 3900X, pagefault after emulate SLDT/SIDT instruction Andreas Rammhold
2020-05-19 18:56 ` Brendan Shanks
2020-05-19 19:43   ` Ricardo Neri
2020-05-20  0:54     ` Andy Lutomirski
2020-05-21  0:56       ` Ricardo Neri
2020-05-21  1:16         ` Andy Lutomirski
2020-05-20  1:04     ` andi
2020-05-23  2:17     ` Andreas Rammhold [this message]
2020-05-26 13:33       ` Ricardo Neri
2020-05-28 11:36         ` Andreas Rammhold
2020-05-20  1:08   ` andi
2020-05-23  2:21   ` andi
2020-05-20  0:17 ` H. Peter Anvin

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