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Re: [Qemu-devel] Re: [PATCH 1/6] Make config space accessor host bus tra
From: |
Benjamin Herrenschmidt |
Subject: |
Re: [Qemu-devel] Re: [PATCH 1/6] Make config space accessor host bus trapable |
Date: |
Tue, 05 Jan 2010 08:53:52 +1100 |
> Yes, but I think how you program your host to pci bridge is platform specific,
> the standard (mostly) applies to what happens below the bridge. There's
> no real standard for how PCI host bridge is connected to processor
> AFAIK, it's by luck we can share code there at all.
Well, yes and no ... there's a standard on how a PCI host bridge is
connected in the sense that how normal MMIO accesses go through in term
of endianness is well defined.
How you actually issue config space cycles is a property of a given
bridge. How you issue IO cycles as well in fact.
Cheers,
Ben.
- [Qemu-devel] Re: [PATCH 1/6] Make config space accessor host bus trapable, (continued)
- Re: [Qemu-devel] Re: [PATCH 1/6] Make config space accessor host bus trapable, Michael S. Tsirkin, 2010/01/04
- Re: [Qemu-devel] Re: [PATCH 1/6] Make config space accessor host bus trapable, Alexander Graf, 2010/01/04
- Re: [Qemu-devel] Re: [PATCH 1/6] Make config space accessor host bus trapable, Benjamin Herrenschmidt, 2010/01/05
- Re: [Qemu-devel] Re: [PATCH 1/6] Make config space accessor host bus trapable, Michael S. Tsirkin, 2010/01/05
- Re: [Qemu-devel] Re: [PATCH 1/6] Make config space accessor host bus trapable, Benjamin Herrenschmidt, 2010/01/05
- Re: [Qemu-devel] Re: [PATCH 1/6] Make config space accessor host bus trapable, Michael S. Tsirkin, 2010/01/05
- Re: [Qemu-devel] Re: [PATCH 1/6] Make config space accessor host bus trapable,
Benjamin Herrenschmidt <=
- Re: [Qemu-devel] Re: [PATCH 1/6] Make config space accessor host bus trapable, Michael S. Tsirkin, 2010/01/05
- Re: [Qemu-devel] Re: [PATCH 1/6] Make config space accessor host bus trapable, Benjamin Herrenschmidt, 2010/01/05
- Re: [Qemu-devel] Re: [PATCH 1/6] Make config space accessor host bus trapable, Michael S. Tsirkin, 2010/01/05
- Re: [Qemu-devel] Re: [PATCH 1/6] Make config space accessor host bus trapable, Benjamin Herrenschmidt, 2010/01/05
- Re: [Qemu-devel] Re: [PATCH 1/6] Make config space accessor host bus trapable, Alexander Graf, 2010/01/05
- Re: [Qemu-devel] Re: [PATCH 1/6] Make config space accessor host bus trapable, Michael S. Tsirkin, 2010/01/05
- Re: [Qemu-devel] Re: [PATCH 1/6] Make config space accessor host bus trapable, Benjamin Herrenschmidt, 2010/01/05
[Qemu-devel] [PATCH 5/6] Make interrupts work, Alexander Graf, 2010/01/02