openwrt/upstream - upstream openwrt

	Commit message (Expand)	Author	Age	Files	Lines
*	scripts: ipkg-remove: handle existing .ipk files without SourceName field	Jo-Philipp Wich	2019-01-21	1	-0/+5
*	build: add ABI_VERSION to binary package names	Jo-Philipp Wich	2019-01-19	1	-0/+15

#ifndef _REGIONREG_H_ #define _REGIONREG_H_ #define XEN_DEFAULT_RID 7 #define IA64_MIN_IMPL_RID_MSB 17 #define _REGION_ID(x) ({ia64_rr _v; _v.rrval = (long)(x); _v.rid;}) #define _REGION_PAGE_SIZE(x) ({ia64_rr _v; _v.rrval = (long)(x); _v.ps;}) #define _REGION_HW_WALKER(x) ({ia64_rr _v; _v.rrval = (long)(x); _v.ve;}) #define _MAKE_RR(r, sz, v) ({ia64_rr _v; _v.rrval=0; _v.rid=(r); \ _v.ps=(sz); _v.ve=(v); _v.rrval;}) typedef union ia64_rr { struct { unsigned long ve : 1; /* enable hw walker */ unsigned long reserved0 : 1; /* reserved */ unsigned long ps : 6; /* log page size */ unsigned long rid : 24; /* region id */ unsigned long reserved1 : 32; /* reserved */ }; unsigned long rrval; } ia64_rr; // // region register macros // #define RR_TO_VE(arg) (((arg) >> 0) & 0x0000000000000001) #define RR_VE(arg) (((arg) & 0x0000000000000001) << 0) #define RR_VE_MASK 0x0000000000000001L #define RR_VE_SHIFT 0 #define RR_TO_PS(arg) (((arg) >> 2) & 0x000000000000003f) #define RR_PS(arg) (((arg) & 0x000000000000003f) << 2) #define RR_PS_MASK 0x00000000000000fcL #define RR_PS_SHIFT 2 #define RR_TO_RID(arg) (((arg) >> 8) & 0x0000000000ffffff) #define RR_RID(arg) (((arg) & 0x0000000000ffffff) << 8) #define RR_RID_MASK 0x00000000ffffff00L int set_one_rr(unsigned long rr, unsigned long val); // This function is purely for performance... apparently scrambling // bits in the region id makes for better hashing, which means better // use of the VHPT, which means better performance // Note that the only time a RID should be mangled is when it is stored in // a region register; anytime it is "viewable" outside of this module, // it should be unmangled // NOTE: this function is also implemented in assembly code in hyper_set_rr!! // Must ensure these two remain consistent! static inline unsigned long vmMangleRID(unsigned long RIDVal) { union bits64 { unsigned char bytes[4]; unsigned long uint; }; union bits64 t; unsigned char tmp; t.uint = RIDVal; tmp = t.bytes[1]; t.bytes[1] = t.bytes[3]; t.bytes[3] = tmp; return t.uint; } // since vmMangleRID is symmetric, use it for unmangling also #define vmUnmangleRID(x) vmMangleRID(x) extern void init_rid_allocator (void); struct domain; /* Allocate RIDs range and metaphysical RIDs for domain d. If ridbits is 0, a default value is used instead. */ extern int allocate_rid_range(struct domain *d, unsigned long ridbits); extern int deallocate_rid_range(struct domain *d); struct vcpu; extern void init_all_rr(struct vcpu *v); extern void set_virtual_rr0(void); extern void set_metaphysical_rr0(void); extern void load_region_regs(struct vcpu *v); extern int is_reserved_rr_rid(struct vcpu *vcpu, u64 reg_value); extern int is_reserved_rr_field(struct vcpu *vcpu, u64 reg_value); #endif /* !_REGIONREG_H_ */ /* * Local variables: * mode: C * c-set-style: "BSD" * c-basic-offset: 4 * tab-width: 4 * indent-tabs-mode: nil * End: */