From: Russ Anderson <rja-sJ/iWh9BUns@public.gmane.org>
To: Borislav Petkov <bp-Gina5bIWoIWzQB+pC5nmwQ@public.gmane.org>
Cc: "H. Peter Anvin" <hpa-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org>,
Alex Thorlton <athorlton-sJ/iWh9BUns@public.gmane.org>,
Matt Fleming
<matt-HNK1S37rvNbeXh+fF434Mdi2O/JbrIOy@public.gmane.org>,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-efi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [BUG] Linux 3.14 fails to boot with new EFI changes
Date: Fri, 31 Jan 2014 08:02:21 -0600 [thread overview]
Message-ID: <20140131140220.GC22498@sgi.com> (raw)
In-Reply-To: <20140131100722.GA21873-fF5Pk5pvG8Y@public.gmane.org>
On Fri, Jan 31, 2014 at 11:07:22AM +0100, Borislav Petkov wrote:
> On Thu, Jan 30, 2014 at 02:23:46PM -0800, H. Peter Anvin wrote:
> > On 01/30/2014 02:19 PM, Alex Thorlton wrote:
> > >
> > > The quick answer is I think it is a virtual address, because it does
> > > not work in physical mode. If you ever see "virtefi" on the RHEL
> > > bootline it is because RH switched the default to physical mode,
> > > which caused UV to not boot. "virtefi" forced it back to virtual
> > > mode.
> > >
> > That is interesting, as it is definitely not the direction we have been
> > going in within the Linux community.
>
> Right, for the new scheme to work, we'll have to map the region
> containing the code for uv_systab->function in order to do all those
> uv_bios_call()'s. Physical/virtual shouldn't matter all that much
> because we map the region *both* as a 1:1 map and in virtual space too.
>
> Can SGI please give us a reliable way to do that during boot?
I'm not sure what you are asking for. We had a reliable way to
boot before the recent patch broke it. (commit
d2f7cbe7b26a74dbbbf8f325b2a6fd01bc34032c)
--
Russ Anderson, Kernel and Performance Software Team Manager
SGI - Silicon Graphics Inc rja-sJ/iWh9BUns@public.gmane.org
WARNING: multiple messages have this Message-ID (diff)
From: Russ Anderson <rja@sgi.com>
To: Borislav Petkov <bp@alien8.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>,
Alex Thorlton <athorlton@sgi.com>,
Matt Fleming <matt@console-pimps.org>,
linux-kernel@vger.kernel.org, linux-efi@vger.kernel.org
Subject: Re: [BUG] Linux 3.14 fails to boot with new EFI changes
Date: Fri, 31 Jan 2014 08:02:21 -0600 [thread overview]
Message-ID: <20140131140220.GC22498@sgi.com> (raw)
In-Reply-To: <20140131100722.GA21873@pd.tnic>
On Fri, Jan 31, 2014 at 11:07:22AM +0100, Borislav Petkov wrote:
> On Thu, Jan 30, 2014 at 02:23:46PM -0800, H. Peter Anvin wrote:
> > On 01/30/2014 02:19 PM, Alex Thorlton wrote:
> > >
> > > The quick answer is I think it is a virtual address, because it does
> > > not work in physical mode. If you ever see "virtefi" on the RHEL
> > > bootline it is because RH switched the default to physical mode,
> > > which caused UV to not boot. "virtefi" forced it back to virtual
> > > mode.
> > >
> > That is interesting, as it is definitely not the direction we have been
> > going in within the Linux community.
>
> Right, for the new scheme to work, we'll have to map the region
> containing the code for uv_systab->function in order to do all those
> uv_bios_call()'s. Physical/virtual shouldn't matter all that much
> because we map the region *both* as a 1:1 map and in virtual space too.
>
> Can SGI please give us a reliable way to do that during boot?
I'm not sure what you are asking for. We had a reliable way to
boot before the recent patch broke it. (commit
d2f7cbe7b26a74dbbbf8f325b2a6fd01bc34032c)
--
Russ Anderson, Kernel and Performance Software Team Manager
SGI - Silicon Graphics Inc rja@sgi.com
next prev parent reply other threads:[~2014-01-31 14:02 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <52E2ADB1.2030007@zytor.com>
[not found] ` <20140124183730.GC11788@pd.tnic>
[not found] ` <20140124184842.GD11788@pd.tnic>
[not found] ` <20140124191709.GT18196@sgi.com>
[not found] ` <20140127222129.GK6839@pd.tnic>
[not found] ` <20140128110552.GA815@pd.tnic>
[not found] ` <20140128200754.GZ18196@sgi.com>
[not found] ` <20140128225905.GN815@pd.tnic>
[not found] ` <20140128234036.GB18196@sgi.com>
[not found] ` <20140129141822.GC24887@pd.tnic>
2014-01-30 22:19 ` [BUG] Linux 3.14 fails to boot with new EFI changes Alex Thorlton
2014-01-30 22:23 ` H. Peter Anvin
2014-01-31 10:07 ` Borislav Petkov
[not found] ` <20140131100722.GA21873-fF5Pk5pvG8Y@public.gmane.org>
2014-01-31 14:02 ` Russ Anderson [this message]
2014-01-31 14:02 ` Russ Anderson
[not found] ` <20140131140220.GC22498-sJ/iWh9BUns@public.gmane.org>
2014-01-31 14:23 ` Borislav Petkov
2014-01-31 14:23 ` Borislav Petkov
[not found] ` <20140131142318.GC21873-fF5Pk5pvG8Y@public.gmane.org>
2014-01-31 14:36 ` Borislav Petkov
2014-01-31 14:36 ` Borislav Petkov
2014-02-05 21:45 ` Alex Thorlton
2014-02-05 21:45 ` Alex Thorlton
[not found] ` <20140205214536.GT3034-sJ/iWh9BUns@public.gmane.org>
2014-02-05 23:15 ` Borislav Petkov
2014-02-05 23:15 ` Borislav Petkov
[not found] ` <20140205231540.GB6364-fF5Pk5pvG8Y@public.gmane.org>
2014-02-11 22:19 ` Alex Thorlton
2014-02-11 22:19 ` Alex Thorlton
[not found] ` <20140211221903.GG27648-sJ/iWh9BUns@public.gmane.org>
2014-02-11 22:36 ` Borislav Petkov
2014-02-11 22:36 ` Borislav Petkov
[not found] ` <20140130221950.GJ3105-sJ/iWh9BUns@public.gmane.org>
2014-01-31 8:04 ` Matt Fleming
2014-01-31 8:04 ` Matt Fleming
[not found] ` <20140131080428.GA29136-HNK1S37rvNbeXh+fF434Mdi2O/JbrIOy@public.gmane.org>
2014-01-31 13:53 ` Russ Anderson
2014-01-31 13:53 ` Russ Anderson
2014-01-23 22:11 Alex Thorlton
2014-01-23 22:48 ` Borislav Petkov
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