Re: [Xen-devel] [PATCH] x86: drop raw_write_cr4() again

2016-03-22 Thread Andrew Cooper
On 22/03/16 12:54, Jan Beulich wrote: > The bypassing of the memory cache is, namely in the context of the > 32-bit PV SMEP/SMAP workaround series (as Andrew validly points out), > making the overall correctness more difficult to verify. Hence go > back to uniform writes. > > Signed-off-by: Jan Beu

[Xen-devel] [PATCH] x86: drop raw_write_cr4() again

2016-03-22 Thread Jan Beulich
The bypassing of the memory cache is, namely in the context of the 32-bit PV SMEP/SMAP workaround series (as Andrew validly points out), making the overall correctness more difficult to verify. Hence go back to uniform writes. Signed-off-by: Jan Beulich --- a/xen/include/asm-x86/processor.h +++