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| From: | Peter Maydell |
| Subject: | Re: [Qemu-devel] [PATCH v4 1/8] fw_cfg: max access size and region size are the same for MMIO data reg |
| Date: | Tue, 16 Dec 2014 21:47:21 +0000 |
On 16 December 2014 at 20:40, Paolo Bonzini <address@hidden> wrote: > Honestly neither can I. But still the automatic splitting (which is > even tested by tests/endianness-test.c :)) assumes idempotency of the > components and it's not entirely surprising that it somehow/sometimes > breaks if you don't respect that. Oh, good point. Yeah, I don't think we want to make any guarantee about the order in which the N byte accesses hit the device if we're assembling an N-byte access. Implementing the device as a proper wide-access-supporting device is definitely the way to go. -- PMM
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