Messages in this thread | | | Date | Wed, 30 Jan 2008 21:00:00 +0800 | From | "huang ying" <> | Subject | Re: ioremap_xxx() with EXEC enabled |
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On Jan 30, 2008 5:59 PM, Andi Kleen <ak@suse.de> wrote: > On Wednesday 30 January 2008 10:32, Huang, Ying 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: > > Does __ioremap(..., PAGE_KERNEL_EXEC) not work?
The the last parameter of the current implementation of __ioremap() in x86 git is enum ioremap_mode (IOR_MODE_UNCACHED and IOR_MODE_CACHED), not the flags like before. So this does not work.
Best Regards, Huang Ying
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