[Qemu-ppc] VSX registers definition question

[Jacques Mony]

Hello,

 

In target-ppc/cpu.h, there is the following definition:

 

    /* VSX registers */

    uint64_t vsr[32];

 

However, according to PowerISA 2.06B, there should be 64 of them, of 128 bits size.

 

Moreover, they should be sharing content with FPR (32 first entries, 64 bits) and VSR (32 last entries).

 

What would be the best way to realign the array and make it map the same registers as FPR and VSR ? Would resizing the array break backward compatibility of saved VMs?

 

Thanks,

Jacques Mony