tlb.h

来自「xen虚拟机源代码安装包」· C头文件 代码 · 共 40 行

#ifndef XEN_ASM_IA64_TLB_H
#define XEN_ASM_IA64_TLB_H

#define NITRS	12
#define NDTRS	12

union pte_flags {
    struct {
	    unsigned long p    :  1; // 0
	    unsigned long      :  1; // 1
	    unsigned long ma   :  3; // 2-4
	    unsigned long a    :  1; // 5
	    unsigned long d    :  1; // 6
	    unsigned long pl   :  2; // 7-8
	    unsigned long ar   :  3; // 9-11
	    unsigned long ppn  : 38; // 12-49
	    unsigned long      :  2; // 50-51
	    unsigned long ed   :  1; // 52
    };
    unsigned long val;
};

typedef struct {
    volatile union pte_flags pte;
    union {
        struct {
            unsigned long      :  2; // 0-1
            unsigned long ps   :  6; // 2-7
            unsigned long key  : 24; // 8-31
            unsigned long      : 32; // 32-63
        };
        unsigned long itir;
    };

    unsigned long vadr;
    unsigned long rid;
} TR_ENTRY;

#endif