Messages in this thread | | | From | "Xing, Cedric" <> | Subject | RE: [RFC PATCH 4/9] mm: Introduce vm_ops->mprotect() | Date | Mon, 3 Jun 2019 06:27:10 +0000 |
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> From: Christopherson, Sean J > Sent: Friday, May 31, 2019 4:32 PM > > diff --git a/include/linux/mm.h b/include/linux/mm.h index 0e8834ac32b7..50a42364a885 > 100644 > --- a/include/linux/mm.h > +++ b/include/linux/mm.h > @@ -458,6 +458,8 @@ struct vm_operations_struct { > void (*close)(struct vm_area_struct * area); > int (*split)(struct vm_area_struct * area, unsigned long addr); > int (*mremap)(struct vm_area_struct * area); > + int (*mprotect)(struct vm_area_struct * area, unsigned long start, > + unsigned long end, unsigned long prot);
As I commented in my reply to the cover letter, SGX driver doesn't need to intercept mprotect() if ALLOW_* flags are not spilled into it.
> vm_fault_t (*fault)(struct vm_fault *vmf); > vm_fault_t (*huge_fault)(struct vm_fault *vmf, > enum page_entry_size pe_size);
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