Messages in this thread | | | Subject | ioremap_xxx() with EXEC enabled | From | "Huang, Ying" <> | Date | Wed, 30 Jan 2008 17:32:10 +0800 |
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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:
ioremap_cache_exec() ioremap_uncache_exec()
- Interface scheme 2:
enum ioremap_mode { IOR_MODE_UNCACHED, IOR_MODE_CACHED, };
enum ioremap_xmode { IOR_XMODE_UNEXEC, IOR_XMODE_EXEC, };
void __iomem *__ioremap(unsigned long phys_addr, unsigned long size, enum ioremap_mode mode, enum ioremap_xmode xmode);
Which one do you think is better? Or we should use some other interface or method?
Best Regards, Huang Ying
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