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H A D | qcow.c | diff 272773 Wed Oct 08 22:17:21 MDT 2014 marcel MFC 271965, 272072, 272086: Add QCOW v1 & v2 support Requested by: gjb Relnotes: yes 271965 Mon Sep 22 15:17:03 MDT 2014 marcel Add support for QCOW version 1. Version 2 is partially implemented. And because of that, it's entirely disabled for now. Both versions are similar enough that a single header definition works for both of them. The only "diverting" side-effect is that the union of the two is larger than the official V1 header. What this means for our V1 support is that we can't put the L1 table adjacent to the V1 header (i.e. at offset 0x30 in the file), unless we revert to hackery and klugery. Let's not. Instead, we align the L1 table at the cluster boundary. This is in line with the V2 layout and perfectly ok for V1 anyway (ok -- as far as I've seen so far). Due to the alignment, our V1 image seems to be 1 cluster larger than the V1 image created by qemu-img (on average). Compression of the clusters is not supported at this time. MFC after: 2 months |
H A D | Makefile | diff 272773 Wed Oct 08 22:17:21 MDT 2014 marcel MFC 271965, 272072, 272086: Add QCOW v1 & v2 support Requested by: gjb Relnotes: yes |
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