Hello Ram, I'm still going through the patches and haven't formed a full picture of the feature in my mind yet, so my comments today won't be particularly insightful... But hopefully the comments that I currently have will be helpful anyway. Ram Pai <linuxram@xxxxxxxxxx> writes: > diff --git a/arch/powerpc/include/asm/pkeys.h b/arch/powerpc/include/asm/pkeys.h > index 203d7de..09b268e 100644 > --- a/arch/powerpc/include/asm/pkeys.h > +++ b/arch/powerpc/include/asm/pkeys.h > @@ -2,21 +2,87 @@ > #define _ASM_PPC64_PKEYS_H > > extern bool pkey_inited; > -#define ARCH_VM_PKEY_FLAGS 0 > +#define arch_max_pkey() 32 > +#define ARCH_VM_PKEY_FLAGS (VM_PKEY_BIT0 | VM_PKEY_BIT1 | VM_PKEY_BIT2 | \ > + VM_PKEY_BIT3 | VM_PKEY_BIT4) > +/* > + * Bits are in BE format. > + * NOTE: key 31, 1, 0 are not used. > + * key 0 is used by default. It give read/write/execute permission. > + * key 31 is reserved by the hypervisor. > + * key 1 is recommended to be not used. > + * PowerISA(3.0) page 1015, programming note. > + */ > +#define PKEY_INITIAL_ALLOCAION 0xc0000001 There's a typo in the macro name, should be "ALLOCATION". -- Thiago Jung Bauermann IBM Linux Technology Center -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>
