On 15/05/17 14:12, Kirill A. Shutemov wrote: > Most of things are in place and we can enable support of 5-level paging. > > Enabling XEN with 5-level paging requires more work. The patch makes XEN > dependent on !X86_5LEVEL. > > Signed-off-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx> > --- > arch/x86/Kconfig | 5 +++++ > arch/x86/xen/Kconfig | 1 + > 2 files changed, 6 insertions(+) > > diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig > index cd18994a9555..11bd0498f64c 100644 > --- a/arch/x86/Kconfig > +++ b/arch/x86/Kconfig > @@ -318,6 +318,7 @@ config FIX_EARLYCON_MEM > > config PGTABLE_LEVELS > int > + default 5 if X86_5LEVEL > default 4 if X86_64 > default 3 if X86_PAE > default 2 > @@ -1390,6 +1391,10 @@ config X86_PAE > has the cost of more pagetable lookup overhead, and also > consumes more pagetable space per process. > > +config X86_5LEVEL > + bool "Enable 5-level page tables support" > + depends on X86_64 > + > config ARCH_PHYS_ADDR_T_64BIT > def_bool y > depends on X86_64 || X86_PAE > diff --git a/arch/x86/xen/Kconfig b/arch/x86/xen/Kconfig > index 027987638e98..12205e6dfa59 100644 > --- a/arch/x86/xen/Kconfig > +++ b/arch/x86/xen/Kconfig > @@ -5,6 +5,7 @@ > config XEN > bool "Xen guest support" > depends on PARAVIRT > + depends on !X86_5LEVEL I'd rather put this under "config XEN_PV". Juergen -- 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>
