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Re: [Qemu-devel] [PATCH 01/15] exec: introduce endianness swapped mmio
From: |
Gleb Natapov |
Subject: |
Re: [Qemu-devel] [PATCH 01/15] exec: introduce endianness swapped mmio |
Date: |
Sun, 28 Nov 2010 10:12:38 +0200 |
On Thu, Nov 25, 2010 at 08:35:41AM +0100, Alexander Graf wrote:
> The way we're currently modeling mmio is too simplified. We assume that
> every device has the same endianness as the target CPU. In reality,
> most devices are little endian (all PCI and ISA ones I'm aware of). Some
> are big endian (special system devices) and a very little fraction is
> target native endian (fw_cfg).
>
As far as I can see fw_cfg calls cpu_to_le() on some of entries and
doesn't on others. Doesn't this makes it "mixed endian" (aka broken)?
--
Gleb.
- [Qemu-devel] [PATCH 06/15] uninorth: Get rid of bswap, (continued)
- [Qemu-devel] [PATCH 06/15] uninorth: Get rid of bswap, Alexander Graf, 2010/11/25
- [Qemu-devel] [PATCH 07/15] e1000: Make little endian, Alexander Graf, 2010/11/25
- [Qemu-devel] [PATCH 12/15] rtl8139: Declare as little endian, Alexander Graf, 2010/11/25
- [Qemu-devel] [PATCH 01/15] exec: introduce endianness swapped mmio, Alexander Graf, 2010/11/25
- Re: [Qemu-devel] [PATCH 01/15] exec: introduce endianness swapped mmio, Andreas Färber, 2010/11/26
- Re: [Qemu-devel] [PATCH 01/15] exec: introduce endianness swapped mmio, Alexander Graf, 2010/11/26
- Re: [Qemu-devel] [PATCH 01/15] exec: introduce endianness swapped mmio, Peter Maydell, 2010/11/26
- Re: [Qemu-devel] [PATCH 01/15] exec: introduce endianness swapped mmio, Paul Brook, 2010/11/26
- Re: [Qemu-devel] [PATCH 01/15] exec: introduce endianness swapped mmio, Blue Swirl, 2010/11/27
- Re: [Qemu-devel] [PATCH 01/15] exec: introduce endianness swapped mmio, Paul Brook, 2010/11/27
- Re: [Qemu-devel] [PATCH 01/15] exec: introduce endianness swapped mmio,
Gleb Natapov <=
[Qemu-devel] [PATCH 05/15] pci-host: Delegate bswap to mmio layer, Alexander Graf, 2010/11/25
[Qemu-devel] [PATCH 13/15] heathrow_pic: Declare as little endian, Alexander Graf, 2010/11/25
[Qemu-devel] [PATCH 11/15] openpic: Replace explicit byte swap with endian hints, Alexander Graf, 2010/11/25
[Qemu-devel] [PATCH 15/15] usb_ohci: Always use little endian, Alexander Graf, 2010/11/25
[Qemu-devel] [PATCH 08/15] prep: Declare as little endian, Alexander Graf, 2010/11/25
[Qemu-devel] [PATCH 10/15] ppc4xx_pci: Declare as little endian, Alexander Graf, 2010/11/25