debuggers.hg

view xen/arch/ia64/tools/privify/privify.h @ 0:7d21f7218375

Exact replica of unstable on 051908 + README-this
author Mukesh Rathor
date Mon May 19 15:34:57 2008 -0700 (2008-05-19)
parents
children ae3b1e86f62d
line source
1 /*
2 * Binary translate privilege-sensitive ops to privileged
3 *
4 * Copyright (C) 2004 Hewlett-Packard Co.
5 * Dan Magenheimer (dan.magenheimer@hp.com)
6 *
7 */
9 /*
10 * Macros to replace privilege-sensitive instructions (and reads from
11 * write-trapping registers) with privileged/trapping instructions as follows:
12 * mov rx=ar.cflg -> mov ar.cflg=r(x+64) [**]
13 * mov rx=ar.ky -> mov ar.ky=r(x+64)
14 * fc rx -> ptc r(x+64)
15 * thash rx=ry -> tak rx=r(y+64)
16 * ttag rx=ry -> tpa rx=r(y+64)
17 * mov rx=cpuid[ry] -> mov r(x+64)=rr[ry]
18 * mov rx=pmd[ry] -> mov r(x+64)=pmc[ry] [**]
19 * cover -> break.b 0x1fffff
20 * [**] not implemented yet
21 */
23 #define notimpl(s) printk(s##" not implemented");
24 #define privify_mov_from_cflg_m(i) do { notimpl("mov from ar.cflg"); } while(0)
25 #define privify_mov_from_cflg_i(i) do { notimpl("mov from ar.cflg"); } while(0)
26 #define privify_mov_from_kr_m(i) do { i.M31.x6 = 0x2a; i.M29.r2 = i.M31.r1 + 64; } while(0)
27 #define privify_mov_from_kr_i(i) do { i.I28.x6 = 0x2a; i.I26.r2 = i.I28.r1 + 64; } while(0)
28 #define privify_fc(i) do { i.M28.x6 = 0x34; i.M28.r3 = i.M28.r3 + 64; } while(0)
29 #define privify_thash(i) do { i.M46.x6 = 0x1f; i.M46.r3 += 64; } while(0)
30 #define privify_ttag(i) do { i.M46.x6 = 0x1f; i.M46.r3 += 64; } while(0)
31 #define privify_mov_from_cpuid(i) do { i.M43.x6 = 0x10; i.M43.r1 += 64; } while(0)
32 #define privify_mov_from_pmd(i) do { notimpl("mov from pmd"); } while(0)
33 #define privify_cover(x) do { x.B8.x6 = 0x0; x.B9.imm20 = 0xfffff; x.B9.i = 0x1; } while(0)