[Bug 1906536] Re: Unable to set SVE VL to 1024 bits or above since 7b6a2198

2020-12-02 Thread Alex Coplan
Hi Philippe, I'm aware of the prctl workaround. It seems to me that this is clearly a regression in functionality. Prior to the change, I could test any executable with any vector length without having to modify the executable. Now I have to insert a prctl to test with 1024 or 2048-bit SVE vector

[Bug 1906536] [NEW] Unable to set SVE VL to 1024 bits or above since 7b6a2198

2020-12-02 Thread Alex Coplan
Public bug reported: Prior to 7b6a2198e71794c851f39ac7a92d39692c786820, the QEMU option sve- max-vq could be used to set the vector length of the implementation. This is useful (among other reasons) for testing software compiled with a fixed SVE vector length. Since this commit, the vector length