From: David Miller <davem@davemloft.net>
To: ebiederm@xmission.com
Cc: tony.luck@intel.com, grundler@parisc-linux.org, jeff@garzik.org,
linux-kernel@vger.kernel.org, kyle@parisc-linux.org,
linuxppc-dev@ozlabs.org, brice@myri.com, greg@kroah.com,
shaohua.li@intel.com, mingo@elte.hu,
linux-pci@atrey.karlin.mff.cuni.cz
Subject: Re: [PATCH 0/6] MSI portability cleanups
Date: Sun, 28 Jan 2007 15:44:53 -0800 (PST) [thread overview]
Message-ID: <20070128.154453.112622887.davem@davemloft.net> (raw)
In-Reply-To: <m1bqkiq25v.fsf@ebiederm.dsl.xmission.com>
From: ebiederm@xmission.com (Eric W. Biederman)
Date: Sun, 28 Jan 2007 14:20:12 -0700
> I see people pushing ridiculous interfaces like the RTAS hypervisor
> interface at me, and saying we must support running firmware drivers
> in the msi code.
This is not what's going on.
The hypervisor does the PCI config space programming on the
device to setup the MSI so that it can be done in a controlled
manner and such that the device cannot ever be configured by
one domain to shoot MSI packets over at devices which belong
to another domain.
It's that simple.
That's absolutely reasonable, and is I believe what you'll see the
sparc64 hypervisor(s) all needing as well.
next prev parent reply other threads:[~2007-01-28 23:44 UTC|newest]
Thread overview: 143+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-01-25 8:34 [RFC/PATCH 0/16] Ops based MSI Implementation Michael Ellerman
2007-01-25 8:34 ` [RFC/PATCH 1/16] Replace pci_msi_quirk with calls to pci_no_msi() Michael Ellerman
2007-01-25 22:33 ` patch msi-replace-pci_msi_quirk-with-calls-to-pci_no_msi.patch added to gregkh-2.6 tree gregkh
2007-01-25 8:34 ` [RFC/PATCH 3/16] Combine pci_(save|restore)_msi/msix_state Michael Ellerman
2007-01-25 22:33 ` patch msi-combine-pci__msi-msix_state.patch added to gregkh-2.6 tree gregkh
2007-01-25 8:34 ` [RFC/PATCH 2/16] Remove pci_scan_msi_device() Michael Ellerman
2007-01-25 22:33 ` patch msi-remove-pci_scan_msi_device.patch added to gregkh-2.6 tree gregkh
2007-01-25 8:34 ` [RFC/PATCH 5/16] Ops based MSI implementation Michael Ellerman
2007-01-25 21:52 ` Greg KH
2007-01-25 22:05 ` Roland Dreier
2007-01-25 22:10 ` Greg KH
2007-01-26 1:02 ` Michael Ellerman
2007-01-25 8:34 ` [RFC/PATCH 4/16] Abstract MSI suspend Michael Ellerman
2007-01-25 22:33 ` patch msi-abstract-msi-suspend.patch added to gregkh-2.6 tree gregkh
2007-01-28 8:27 ` [RFC/PATCH 4/16] Abstract MSI suspend Eric W. Biederman
2007-01-29 7:22 ` Michael Ellerman
2007-01-29 8:45 ` Eric W. Biederman
2007-01-29 9:47 ` Michael Ellerman
2007-01-29 16:52 ` Grant Grundler
2007-01-29 16:57 ` Roland Dreier
2007-01-29 17:02 ` Roland Dreier
2007-01-29 17:25 ` Eric W. Biederman
2007-01-29 17:32 ` Roland Dreier
2007-01-29 22:03 ` Grant Grundler
2007-01-29 17:20 ` Eric W. Biederman
2007-02-01 4:24 ` Greg KH
2007-01-25 8:34 ` [RFC/PATCH 6/16] Add bare metal MSI enable & disable routines Michael Ellerman
2007-01-26 5:35 ` Eric W. Biederman
2007-01-25 8:34 ` [RFC/PATCH 7/16] Rip out the existing powerpc msi stubs Michael Ellerman
2007-01-25 8:34 ` [RFC/PATCH 9/16] RTAS MSI implementation Michael Ellerman
2007-01-25 8:34 ` [RFC/PATCH 8/16] Enable MSI on Powerpc Michael Ellerman
2007-01-25 8:34 ` [RFC/PATCH 10/16] Add a pci_irq_fixup for MSI via RTAS Michael Ellerman
2007-01-25 8:34 ` [RFC/PATCH 12/16] Tell firmware we support MSI Michael Ellerman
2007-01-25 8:34 ` [RFC/PATCH 11/16] Activate MSI via RTAS on pseries Michael Ellerman
2007-01-25 8:34 ` [RFC/PATCH 13/16] MPIC MSI allocator Michael Ellerman
2007-01-25 8:34 ` [RFC/PATCH 14/16] MPIC MSI backend Michael Ellerman
2007-01-26 6:43 ` Grant Grundler
2007-01-26 7:02 ` Eric W. Biederman
2007-01-26 8:47 ` Segher Boessenkool
2007-01-26 16:32 ` Eric W. Biederman
2007-01-26 17:19 ` Grant Grundler
2007-01-26 17:56 ` Eric W. Biederman
2007-01-26 22:48 ` Benjamin Herrenschmidt
2007-01-27 7:01 ` Michael Ellerman
2007-01-26 22:40 ` Benjamin Herrenschmidt
2007-01-27 2:11 ` David Miller
2007-01-26 22:08 ` Benjamin Herrenschmidt
2007-01-27 6:54 ` Michael Ellerman
2007-01-26 20:50 ` Benjamin Herrenschmidt
2007-01-26 22:46 ` Paul Mackerras
2007-01-27 2:46 ` Eric W. Biederman
2007-01-27 3:02 ` David Miller
2007-01-27 4:28 ` Eric W. Biederman
2007-01-27 18:30 ` Grant Grundler
2007-01-27 20:02 ` Benjamin Herrenschmidt
2007-01-26 20:41 ` Benjamin Herrenschmidt
2007-01-26 9:11 ` Segher Boessenkool
2007-01-27 6:33 ` Michael Ellerman
2007-01-25 8:34 ` [RFC/PATCH 15/16] Enable MSI mappings for MPIC Michael Ellerman
2007-01-25 8:34 ` [RFC/PATCH 16/16] Activate MSI for the MPIC backend on U3 Michael Ellerman
2007-01-25 21:53 ` [RFC/PATCH 0/16] Ops based MSI Implementation Greg KH
2007-01-25 21:55 ` David Miller
2007-01-26 1:05 ` Michael Ellerman
2007-01-26 1:03 ` Michael Ellerman
2007-01-26 6:18 ` Eric W. Biederman
2007-01-26 6:56 ` Grant Grundler
2007-01-26 7:15 ` Eric W. Biederman
2007-01-26 7:48 ` Grant Grundler
2007-01-26 15:26 ` Eric W. Biederman
2007-01-26 21:58 ` Benjamin Herrenschmidt
2007-01-26 8:57 ` Segher Boessenkool
2007-01-26 17:27 ` Grant Grundler
2007-01-26 20:57 ` Benjamin Herrenschmidt
2007-01-26 21:24 ` Benjamin Herrenschmidt
2007-01-27 5:41 ` Michael Ellerman
2007-01-28 6:16 ` Eric W. Biederman
2007-01-28 8:12 ` Michael Ellerman
2007-01-28 8:36 ` Eric W. Biederman
2007-01-28 20:14 ` Benjamin Herrenschmidt
2007-01-28 20:53 ` Eric W. Biederman
2007-01-28 21:17 ` Benjamin Herrenschmidt
2007-01-28 22:36 ` Eric W. Biederman
2007-01-28 23:17 ` Benjamin Herrenschmidt
2007-01-28 23:38 ` Eric W. Biederman
2007-01-28 23:51 ` David Miller
2007-01-29 0:58 ` Benjamin Herrenschmidt
2007-01-29 1:13 ` David Miller
2007-01-29 3:17 ` Benjamin Herrenschmidt
2007-01-29 4:19 ` David Miller
2007-01-29 4:44 ` Benjamin Herrenschmidt
2007-01-29 5:46 ` Eric W. Biederman
2007-01-29 6:08 ` Benjamin Herrenschmidt
2007-01-31 6:52 ` David Miller
2007-01-31 7:40 ` Eric W. Biederman
2007-02-01 0:55 ` David Miller
2007-01-29 0:26 ` Benjamin Herrenschmidt
2007-01-29 0:59 ` Michael Ellerman
2007-01-28 23:31 ` David Miller
2007-01-28 23:59 ` Benjamin Herrenschmidt
2007-01-28 23:26 ` David Miller
2007-01-28 23:25 ` David Miller
2007-01-27 4:59 ` Michael Ellerman
2007-01-28 19:40 ` [PATCH 0/6] MSI portability cleanups Eric W. Biederman
2007-01-28 19:42 ` [PATCH 1/6] msi: Kill msi_lookup_irq Eric W. Biederman
2007-01-28 19:44 ` [PATCH 2/6] msi: Remove msi_lock Eric W. Biederman
2007-01-28 19:45 ` [PATCH 3/6] msi: Fix msi_remove_pci_irq_vectors Eric W. Biederman
2007-01-28 19:47 ` [PATCH 4/6] msi: Remove attach_msi_entry Eric W. Biederman
2007-01-28 19:52 ` [PATCH 5/6] msi: Kill the msi_desc array Eric W. Biederman
2007-01-28 19:56 ` [PATCH 6/6] msi: Make MSI useable more architectures Eric W. Biederman
2007-02-01 6:08 ` patch msi-make-msi-useable-more-architectures.patch added to gregkh-2.6 tree gregkh
2007-02-01 6:07 ` patch msi-kill-the-msi_desc-array.patch " gregkh
2007-02-01 6:08 ` patch msi-remove-attach_msi_entry.patch " gregkh
2007-02-01 6:07 ` patch msi-fix-msi_remove_pci_irq_vectors.patch " gregkh
2007-02-01 6:08 ` patch msi-remove-msi_lock.patch " gregkh
2007-01-28 22:01 ` [PATCH 1/6] msi: Kill msi_lookup_irq Paul Mackerras
2007-01-28 22:18 ` Eric W. Biederman
2007-02-01 6:07 ` patch msi-kill-msi_lookup_irq.patch added to gregkh-2.6 tree gregkh
2007-01-28 20:23 ` [PATCH 0/6] MSI portability cleanups Benjamin Herrenschmidt
2007-01-28 20:47 ` Jeff Garzik
2007-01-28 21:20 ` Eric W. Biederman
2007-01-28 21:26 ` Ingo Molnar
2007-01-28 22:09 ` Benjamin Herrenschmidt
2007-01-28 23:26 ` Eric W. Biederman
2007-01-28 23:37 ` David Miller
2007-01-29 5:18 ` Eric W. Biederman
2007-01-29 5:25 ` David Miller
2007-01-29 5:58 ` Eric W. Biederman
2007-01-29 6:05 ` Benjamin Herrenschmidt
2007-01-29 8:28 ` Eric W. Biederman
2007-01-29 9:03 ` Eric W. Biederman
2007-01-29 10:11 ` Michael Ellerman
2007-01-29 20:32 ` Benjamin Herrenschmidt
2007-01-29 23:29 ` Paul Mackerras
2007-01-29 23:40 ` Benjamin Herrenschmidt
2007-01-29 20:22 ` Benjamin Herrenschmidt
2007-01-29 23:05 ` Paul Mackerras
2007-01-30 19:32 ` Segher Boessenkool
2007-01-29 1:33 ` Benjamin Herrenschmidt
2007-02-01 4:29 ` Greg KH
2007-01-28 23:44 ` David Miller [this message]
2007-01-28 22:11 ` Eric W. Biederman
2007-01-28 23:42 ` David Miller
2007-01-28 21:34 ` Eric W. Biederman
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