Re: [PATCH] x86, fpu: do not BUG_ON() in early FPU code

2016-07-20 Thread Ingo Molnar
* Dave Hansen wrote: > > From: Dave Hansen > > I don't think it is really possible to have a system where CPUID > enumerates support for XSAVE but that it does not have FP/SSE > (they are "legacy" features and always present). > > But, I did manage to hit this case in qemu when I enabled its

[PATCH] x86, fpu: do not BUG_ON() in early FPU code

2016-07-20 Thread Dave Hansen
From: Dave Hansen I don't think it is really possible to have a system where CPUID enumerates support for XSAVE but that it does not have FP/SSE (they are "legacy" features and always present). But, I did manage to hit this case in qemu when I enabled its somewhat shaky XSAVE support. The bumm