Here are three cleanups to the IOPL switching code for x86. [PATCH 1/3] x86: Remove native_set_iopl_mask() [PATCH 2/3] x86-32: Simplify IOPL switch check [PATCH 3/3] x86/xen: Move paravirt IOPL switching to slow the path
arch/x86/include/asm/paravirt.h | 6 ++++++ arch/x86/include/asm/processor.h | 22 ++-------------------- arch/x86/include/asm/thread_info.h | 5 ++++- arch/x86/include/asm/xen/hypervisor.h | 2 -- arch/x86/kernel/ioport.c | 6 ++++++ arch/x86/kernel/paravirt.c | 2 +- arch/x86/kernel/process.c | 8 ++++++++ arch/x86/kernel/process_32.c | 9 --------- arch/x86/kernel/process_64.c | 11 ----------- arch/x86/xen/enlighten_pv.c | 6 ++++-- 10 files changed, 31 insertions(+), 46 deletions(-)
