On Wednesday, April 30, 2014 2:04 AM, Catalin Marinas wrote: > On Tue, Apr 29, 2014 at 05:59:33AM +0100, Jungseok Lee wrote: > > diff --git a/arch/arm64/kernel/head.S b/arch/arm64/kernel/head.S index > > 0fd5650..03ec424 100644 > > --- a/arch/arm64/kernel/head.S > > +++ b/arch/arm64/kernel/head.S > > @@ -37,8 +37,9 @@ > > > > /* > > * swapper_pg_dir is the virtual address of the initial page table. > > We place > > - * the page tables 3 * PAGE_SIZE below KERNEL_RAM_VADDR. The > > idmap_pg_dir has > > - * 2 pages and is placed below swapper_pg_dir. > > + * the page tables 3 * PAGE_SIZE (2 or 3 levels) or 4 * PAGE_SIZE (4 > > + levels) > > + * below KERNEL_RAM_VADDR. The idmap_pg_dir has 2 pages (2 or 3 > > + levels) or > > + * 3 pages (4 levels) and is placed below swapper_pg_dir. > > */ > > #define KERNEL_RAM_VADDR (PAGE_OFFSET + TEXT_OFFSET) > > > > @@ -46,8 +47,13 @@ > > #error KERNEL_RAM_VADDR must start at 0xXXX80000 #endif > > > > +#ifdef CONFIG_ARM64_4_LEVELS > > +#define SWAPPER_DIR_SIZE (4 * PAGE_SIZE) > > +#define IDMAP_DIR_SIZE (3 * PAGE_SIZE) > > +#else > > #define SWAPPER_DIR_SIZE (3 * PAGE_SIZE) > > #define IDMAP_DIR_SIZE (2 * PAGE_SIZE) > > +#endif > > Mark Rutland was doing some clean-up of this code to no longer place > swapper_pg_dir and idmap_pg_dir > below the kernel image. I'm not sure whether the patches ended up on the list > yet (not a problem for > now, just a slight change for your patches).
I don't see those patches in the mailing list yet. I will keep it in mind. Thanks. Best Regards Jungseok Lee -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
