On Fri, 16 Jun 2017, Tom Lendacky wrote: > Currently there is a check if the address being mapped is in the ISA > range (is_ISA_range()), and if it is then phys_to_virt() is used to > perform the mapping. When SME is active, however, this will result > in the mapping having the encryption bit set when it is expected that > an ioremap() should not have the encryption bit set. So only use the > phys_to_virt() function if SME is not active This does not make sense to me. What the heck has phys_to_virt() to do with the encryption bit. Especially why would the encryption bit be set on that mapping in the first place? I'm probably missing something, but this want's some coherent explanation understandable by mere mortals both in the changelog and the code comment. Thanks, tglx -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>
