Dave Martin <Dave.Martin@xxxxxxx> writes: > fpsimd_last_state.st is set to NULL as a way of indicating that > current's FPSIMD registers are no longer loaded in the cpu. In > particular, this is done when the kernel temporarily uses or > clobbers the FPSIMD registers for its own purposes, as in CPU PM or > kernel-mode NEON, resulting in them being populated with garbage > data not belonging to a task. <snip> > > Signed-off-by: Dave Martin <Dave.Martin@xxxxxxx> > Cc: Catalin Marinas <catalin.marinas@xxxxxxx> > Cc: Will Deacon <will.deacon@xxxxxxx> > Cc: Ard Biesheuvel <ard.biesheuvel@xxxxxxxxxx> Reviewed-by: Alex Bennée <alex.bennee@xxxxxxxxxx> -- Alex Bennée _______________________________________________ kvmarm mailing list kvmarm@xxxxxxxxxxxxxxxxxxxxx https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
