From: Joerg Roedel <joro-zLv9SwRftAIdnm+yROfE0A@public.gmane.org>
To: Borislav Petkov <bp-Gina5bIWoIWzQB+pC5nmwQ@public.gmane.org>,
suravee.suthikulpanit-5C7GfCeVMHo@public.gmane.org,
iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [PATCH 1/3] iommu/amd: Add logic to decode AMD IOMMU event flag
Date: Tue, 2 Apr 2013 18:04:00 +0200 [thread overview]
Message-ID: <20130402160400.GP30540@8bytes.org> (raw)
In-Reply-To: <20130402152956.GE4391-fF5Pk5pvG8Y@public.gmane.org>
On Tue, Apr 02, 2013 at 05:29:56PM +0200, Borislav Petkov wrote:
> On Tue, Apr 02, 2013 at 05:03:04PM +0200, Joerg Roedel wrote:
> Good luck trying to get ASUS to fix anything in their BIOS :(.
Hmm...
> Can't we detect the SB IOAPIC some other way in this case?
I can certainly write a patch that works around your particular BIOS
bug. The problem is that such a fix will most certainly break other
systems.
Unfortunatly there is no reliable way to fixup the IO-APIC-ID->DEVID
mapping at runtime when the BIOS messed it up. The only thing I can do
is to check for potential problems and disable the intremap feature
then, so that the system will at least boot.
Joerg
WARNING: multiple messages have this Message-ID (diff)
From: Joerg Roedel <joro@8bytes.org>
To: Borislav Petkov <bp@alien8.de>,
suravee.suthikulpanit@amd.com, iommu@lists.linux-foundation.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/3] iommu/amd: Add logic to decode AMD IOMMU event flag
Date: Tue, 2 Apr 2013 18:04:00 +0200 [thread overview]
Message-ID: <20130402160400.GP30540@8bytes.org> (raw)
In-Reply-To: <20130402152956.GE4391@pd.tnic>
On Tue, Apr 02, 2013 at 05:29:56PM +0200, Borislav Petkov wrote:
> On Tue, Apr 02, 2013 at 05:03:04PM +0200, Joerg Roedel wrote:
> Good luck trying to get ASUS to fix anything in their BIOS :(.
Hmm...
> Can't we detect the SB IOAPIC some other way in this case?
I can certainly write a patch that works around your particular BIOS
bug. The problem is that such a fix will most certainly break other
systems.
Unfortunatly there is no reliable way to fixup the IO-APIC-ID->DEVID
mapping at runtime when the BIOS messed it up. The only thing I can do
is to check for potential problems and disable the intremap feature
then, so that the system will at least boot.
Joerg
next prev parent reply other threads:[~2013-04-02 16:04 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-27 23:51 [PATCH 1/3] iommu/amd: Add logic to decode AMD IOMMU event flag suravee.suthikulpanit
2013-03-27 23:51 ` suravee.suthikulpanit
[not found] ` <1364428283-2548-1-git-send-email-suravee.suthikulpanit-5C7GfCeVMHo@public.gmane.org>
2013-04-01 13:47 ` Suravee Suthikulanit
2013-04-01 13:47 ` Suravee Suthikulanit
2013-04-02 14:33 ` Joerg Roedel
2013-04-02 14:33 ` Joerg Roedel
[not found] ` <20130402143335.GB15687-zLv9SwRftAIdnm+yROfE0A@public.gmane.org>
2013-04-02 14:39 ` Suravee Suthikulanit
2013-04-02 14:39 ` Suravee Suthikulanit
2013-04-02 14:40 ` Borislav Petkov
2013-04-02 14:40 ` Borislav Petkov
[not found] ` <20130402144037.GE5488-fF5Pk5pvG8Y@public.gmane.org>
2013-04-02 15:03 ` Joerg Roedel
2013-04-02 15:03 ` Joerg Roedel
[not found] ` <20130402150302.GF15687-zLv9SwRftAIdnm+yROfE0A@public.gmane.org>
2013-04-02 15:29 ` Borislav Petkov
2013-04-02 15:29 ` Borislav Petkov
[not found] ` <20130402152956.GE4391-fF5Pk5pvG8Y@public.gmane.org>
2013-04-02 15:41 ` Suravee Suthikulpanit
2013-04-02 15:41 ` Suravee Suthikulpanit
[not found] ` <515AFC25.5060501-5C7GfCeVMHo@public.gmane.org>
2013-04-02 16:06 ` Joerg Roedel
2013-04-02 16:06 ` Joerg Roedel
2013-04-02 16:04 ` Joerg Roedel [this message]
2013-04-02 16:04 ` Joerg Roedel
[not found] ` <20130402160400.GP30540-zLv9SwRftAIdnm+yROfE0A@public.gmane.org>
2013-04-02 16:17 ` Borislav Petkov
2013-04-02 16:17 ` Borislav Petkov
[not found] ` <20130402161757.GC17519-fF5Pk5pvG8Y@public.gmane.org>
2013-04-02 16:33 ` Joerg Roedel
2013-04-02 16:33 ` Joerg Roedel
[not found] ` <20130402163318.GS30540-zLv9SwRftAIdnm+yROfE0A@public.gmane.org>
2013-04-02 19:32 ` Borislav Petkov
2013-04-02 19:32 ` Borislav Petkov
[not found] ` <20130402193240.GF17675-fF5Pk5pvG8Y@public.gmane.org>
2013-04-02 20:59 ` Joerg Roedel
2013-04-02 20:59 ` Joerg Roedel
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