On Wed, 30 Jan 2008 18:30:48 +0100 Andi Kleen <[EMAIL PROTECTED]> wrote:
> On Wed, Jan 30, 2008 at 07:45:40AM -0800, Arjan van de Ven wrote: > > On Wed, 30 Jan 2008 17:32:10 +0800 > > "Huang, Ying" <[EMAIL PROTECTED]> wrote: > > > > > Hi, > > > > > > On i386, EFI may need to map EFI runtime code area as EXEC enabled > > > with ioremap(). But, I found that the memory are mapped as EXEC > > > disabled when mapped with ioremap() now. I think we may need a > > > method to map memory area as EXEC enabled with ioremap_xxx(). > > > Some possible interface schemes for mapping as EXEC enabled are > > > as follow: > > > > > > - Interface scheme 1: > > > > scheme 3: > > > > set_memory_x(... ) > > On i386 EFI is unlikely to be in the direct mapping ... 1) 32 bit EFI is totally irrelevant. 2) set_memory_ and set_pages_ API is not restricted to direct mapping. That's why they take a virtual address / struct page > > -Andi > -- If you want to reach me at my work email, use [EMAIL PROTECTED] For development, discussion and tips for power savings, visit http://www.lesswatts.org -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
