device: 0.668
graphic: 0.540
semantic: 0.501
other: 0.498
performance: 0.452
socket: 0.384
network: 0.383
vnc: 0.341
debug: 0.315
files: 0.269
boot: 0.254
permissions: 0.194
KVM: 0.178
PID: 0.162

AArch64 EXT instruction for V register does not clear MSB side bits

On AArch64 CPU with SVE register, there seems to be a bug in the operation when executing EXT instruction to V registers. Bits above the 128 bits of the SVE register must be cleared to 0, but qemu-aarch64 seems to hold the value.

Example
ext v0.16b, v1.16b v2.16b, 8

After executing above instruction, (N-1) to 128 bits of z0 register must be 0, where N is SVE register width.

Yep.

Fixed here:
https://git.qemu.org/?p=qemu.git;a=commitdiff;h=78cedfabd53b


Thank you for bug fix.
I found trn1, trn2, zip1, zip2, uz1, uz2 instructions seem to have same bug.

All of those, and tbl, tbx, ins, are fixed in the three subsequent commits.