1
2
3
4
5#include "qemu/osdep.h"
6
7#include "qemu-common.h"
8#include "cpu.h"
9
10void x86_cpu_xsave_all_areas(X86CPU *cpu, X86XSaveArea *buf)
11{
12 CPUX86State *env = &cpu->env;
13 X86XSaveArea *xsave = buf;
14
15 uint16_t cwd, swd, twd;
16 int i;
17 memset(xsave, 0, sizeof(X86XSaveArea));
18 twd = 0;
19 swd = env->fpus & ~(7 << 11);
20 swd |= (env->fpstt & 7) << 11;
21 cwd = env->fpuc;
22 for (i = 0; i < 8; ++i) {
23 twd |= (!env->fptags[i]) << i;
24 }
25 xsave->legacy.fcw = cwd;
26 xsave->legacy.fsw = swd;
27 xsave->legacy.ftw = twd;
28 xsave->legacy.fpop = env->fpop;
29 xsave->legacy.fpip = env->fpip;
30 xsave->legacy.fpdp = env->fpdp;
31 memcpy(&xsave->legacy.fpregs, env->fpregs,
32 sizeof env->fpregs);
33 xsave->legacy.mxcsr = env->mxcsr;
34 xsave->header.xstate_bv = env->xstate_bv;
35 memcpy(&xsave->bndreg_state.bnd_regs, env->bnd_regs,
36 sizeof env->bnd_regs);
37 xsave->bndcsr_state.bndcsr = env->bndcs_regs;
38 memcpy(&xsave->opmask_state.opmask_regs, env->opmask_regs,
39 sizeof env->opmask_regs);
40
41 for (i = 0; i < CPU_NB_REGS; i++) {
42 uint8_t *xmm = xsave->legacy.xmm_regs[i];
43 uint8_t *ymmh = xsave->avx_state.ymmh[i];
44 uint8_t *zmmh = xsave->zmm_hi256_state.zmm_hi256[i];
45 stq_p(xmm, env->xmm_regs[i].ZMM_Q(0));
46 stq_p(xmm+8, env->xmm_regs[i].ZMM_Q(1));
47 stq_p(ymmh, env->xmm_regs[i].ZMM_Q(2));
48 stq_p(ymmh+8, env->xmm_regs[i].ZMM_Q(3));
49 stq_p(zmmh, env->xmm_regs[i].ZMM_Q(4));
50 stq_p(zmmh+8, env->xmm_regs[i].ZMM_Q(5));
51 stq_p(zmmh+16, env->xmm_regs[i].ZMM_Q(6));
52 stq_p(zmmh+24, env->xmm_regs[i].ZMM_Q(7));
53 }
54
55#ifdef TARGET_X86_64
56 memcpy(&xsave->hi16_zmm_state.hi16_zmm, &env->xmm_regs[16],
57 16 * sizeof env->xmm_regs[16]);
58 memcpy(&xsave->pkru_state, &env->pkru, sizeof env->pkru);
59#endif
60
61}
62
63void x86_cpu_xrstor_all_areas(X86CPU *cpu, const X86XSaveArea *buf)
64{
65
66 CPUX86State *env = &cpu->env;
67 const X86XSaveArea *xsave = buf;
68
69 int i;
70 uint16_t cwd, swd, twd;
71 cwd = xsave->legacy.fcw;
72 swd = xsave->legacy.fsw;
73 twd = xsave->legacy.ftw;
74 env->fpop = xsave->legacy.fpop;
75 env->fpstt = (swd >> 11) & 7;
76 env->fpus = swd;
77 env->fpuc = cwd;
78 for (i = 0; i < 8; ++i) {
79 env->fptags[i] = !((twd >> i) & 1);
80 }
81 env->fpip = xsave->legacy.fpip;
82 env->fpdp = xsave->legacy.fpdp;
83 env->mxcsr = xsave->legacy.mxcsr;
84 memcpy(env->fpregs, &xsave->legacy.fpregs,
85 sizeof env->fpregs);
86 env->xstate_bv = xsave->header.xstate_bv;
87 memcpy(env->bnd_regs, &xsave->bndreg_state.bnd_regs,
88 sizeof env->bnd_regs);
89 env->bndcs_regs = xsave->bndcsr_state.bndcsr;
90 memcpy(env->opmask_regs, &xsave->opmask_state.opmask_regs,
91 sizeof env->opmask_regs);
92
93 for (i = 0; i < CPU_NB_REGS; i++) {
94 const uint8_t *xmm = xsave->legacy.xmm_regs[i];
95 const uint8_t *ymmh = xsave->avx_state.ymmh[i];
96 const uint8_t *zmmh = xsave->zmm_hi256_state.zmm_hi256[i];
97 env->xmm_regs[i].ZMM_Q(0) = ldq_p(xmm);
98 env->xmm_regs[i].ZMM_Q(1) = ldq_p(xmm+8);
99 env->xmm_regs[i].ZMM_Q(2) = ldq_p(ymmh);
100 env->xmm_regs[i].ZMM_Q(3) = ldq_p(ymmh+8);
101 env->xmm_regs[i].ZMM_Q(4) = ldq_p(zmmh);
102 env->xmm_regs[i].ZMM_Q(5) = ldq_p(zmmh+8);
103 env->xmm_regs[i].ZMM_Q(6) = ldq_p(zmmh+16);
104 env->xmm_regs[i].ZMM_Q(7) = ldq_p(zmmh+24);
105 }
106
107#ifdef TARGET_X86_64
108 memcpy(&env->xmm_regs[16], &xsave->hi16_zmm_state.hi16_zmm,
109 16 * sizeof env->xmm_regs[16]);
110 memcpy(&env->pkru, &xsave->pkru_state, sizeof env->pkru);
111#endif
112
113}
114
