From: "H. Peter Anvin" <hpa@zytor.com>
To: Andy Lutomirski <luto@amacapital.net>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: Is espfix64's double-fault thing OK on Xen?
Date: Mon, 14 Jul 2014 21:14:15 -0700 [thread overview]
Message-ID: <53C4AA97.2050105@zytor.com> (raw)
In-Reply-To: <CALCETrUrAZsoPttFhAd384OJ27ixwC_NCYFMWuMzyDqoKBmTmQ@mail.gmail.com>
On 07/14/2014 07:46 PM, Andy Lutomirski wrote:
>
> On espfix-less kernels (Xen and non-Xen), 16-bit CS w/ 16-bit SS
> always fails. Native (32-bit or 64-bit, according to the binary) CS
> with 16-bit SS fails for sigreturn_32, but passes for sigreturn_64. I
> find this somewhat odd. Native ss always passes.
>
espfix32 is disabled on Xen.
-hpa
prev parent reply other threads:[~2014-07-15 4:14 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-09 23:17 Is espfix64's double-fault thing OK on Xen? Andy Lutomirski
2014-07-14 16:58 ` Konrad Rzeszutek Wilk
2014-07-14 17:04 ` H. Peter Anvin
2014-07-14 17:11 ` Andy Lutomirski
2014-07-14 17:15 ` Andy Lutomirski
2014-07-14 21:31 ` Andy Lutomirski
2014-07-14 21:35 ` Andy Lutomirski
2014-07-14 22:23 ` H. Peter Anvin
2014-07-15 2:46 ` Andy Lutomirski
2014-07-15 3:20 ` Andy Lutomirski
2014-07-15 4:14 ` H. Peter Anvin [this message]
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