Hi, > 2026年6月5日 00:06，Miao Wang <[email protected]> 写道： > > Hi, > >> 2026年6月4日 23:44，Michael Tokarev <[email protected]> 写道： >> >> On 04.06.2026 11:56, Miao Wang wrote: >>> Hi, all >>> I can reproduce this test failure locally. I believe the reason is that the >>> implementation of the pvscsi device in qemu is broken when the endianness of >>> the guest and the host differs. >>> It can be easily seen in the driver code of pvscsi that the command data is >>> sent through a register in units of 32bits in the native endianness. In the >>> qemu emulated device code, however, although qemu has done the endianness >>> translation of the registers, the command data is received as a data stream >>> and filled into a buffer. When a field of a command data struct is 64bits >>> long, >>> the upper 32 bits and the lower 32 bits will be flipped resulting the >>> mis-interpretation of the command data. >> >> Oh wow. >> >> Can you post this to the qemu mailing list please? >> That sounds like a big issue. > > Posted on their issue tracker. > > https://gitlab.com/qemu-project/qemu/-/work_items/3530 >
Can you try the attached patch for qemu please? I have tested basic functions and found it basically works. Cheers, Miao Wang
0001-pvscsi-translate-data-endianness.patch
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