@@ -271,6 +271,12 @@ typedef struct _CPU_KPROCESSOR_STATE {
#endif
+static void windbg_set_dr(CPUState *cpu, int index, target_ulong value)
+{}
+
+static void windbg_set_sr(CPUState *cpu, int sr, uint16_t selector)
+{}
+
static int windbg_read_context(CPUState *cpu, uint8_t *buf, int buf_size,
int offset, int len)
{
@@ -376,6 +382,212 @@ static int windbg_read_context(CPUState *cpu, uint8_t *buf, int buf_size,
static int windbg_write_context(CPUState *cpu, uint8_t *buf, int buf_size,
int offset, int len)
{
+ CPUArchState *env = cpu->env_ptr;
+ int mem_size, i, tmp;
+ uint8_t *mem_ptr = buf;
+
+ if (len < 0 || len > buf_size) {
+ WINDBG_ERROR("windbg_write_context: incorrect length %d", len);
+ return 1;
+ }
+
+ if (offset < 0 || offset + len > sizeof(CPU_CONTEXT)) {
+ WINDBG_ERROR("windbg_write_context: incorrect offset %d", offset);
+ return 2;
+ }
+
+ while (len > 0 && offset < sizeof(CPU_CONTEXT)) {
+ mem_size = 1;
+ switch (offset) {
+
+ case offsetof(CPU_CONTEXT, ContextFlags):
+ mem_size = sizeof_field(CPU_CONTEXT, ContextFlags);
+ break;
+
+ case offsetof(CPU_CONTEXT, Dr0):
+ mem_size = sizeof_field(CPU_CONTEXT, Dr0);
+ windbg_set_dr(cpu, 0, ldtul_p(buf + offset));
+ break;
+
+ case offsetof(CPU_CONTEXT, Dr1):
+ mem_size = sizeof_field(CPU_CONTEXT, Dr1);
+ windbg_set_dr(cpu, 1, ldtul_p(buf + offset));
+ break;
+
+ case offsetof(CPU_CONTEXT, Dr2):
+ mem_size = sizeof_field(CPU_CONTEXT, Dr2);
+ windbg_set_dr(cpu, 2, ldtul_p(buf + offset));
+ break;
+
+ case offsetof(CPU_CONTEXT, Dr3):
+ mem_size = sizeof_field(CPU_CONTEXT, Dr3);
+ windbg_set_dr(cpu, 3, ldtul_p(buf + offset));
+ break;
+
+ case offsetof(CPU_CONTEXT, Dr6):
+ mem_size = sizeof_field(CPU_CONTEXT, Dr6);
+ windbg_set_dr(cpu, 6, ldtul_p(buf + offset));
+ break;
+
+ case offsetof(CPU_CONTEXT, Dr7):
+ mem_size = sizeof_field(CPU_CONTEXT, Dr7);
+ windbg_set_dr(cpu, 7, ldtul_p(buf + offset));
+ break;
+
+ case offsetof(CPU_CONTEXT, FloatSave.ControlWord):
+ mem_size = sizeof_field(CPU_CONTEXT, FloatSave.ControlWord);
+ cpu_set_fpuc(env, ldl_p(buf + offset));
+ break;
+
+ case offsetof(CPU_CONTEXT, FloatSave.StatusWord):
+ mem_size = sizeof_field(CPU_CONTEXT, FloatSave.StatusWord);
+ tmp = ldl_p(buf + offset);
+ env->fpstt = (tmp >> 11) & 7;
+ env->fpus = tmp & ~0x3800;
+ break;
+
+ case offsetof(CPU_CONTEXT, FloatSave.TagWord):
+ mem_size = sizeof_field(CPU_CONTEXT, FloatSave.TagWord);
+ tmp = ldl_p(buf + offset);
+ for (i = 0; i < 8; ++i) {
+ env->fptags[i] = !((tmp >> i) & 1);
+ }
+ break;
+
+ case offsetof(CPU_CONTEXT, FloatSave.ErrorOffset):
+ mem_size = sizeof_field(CPU_CONTEXT, FloatSave.ErrorOffset);
+ UINT32_P(&env->fpip)[0] = ldl_p(buf + offset);
+ break;
+
+ case offsetof(CPU_CONTEXT, FloatSave.ErrorSelector):
+ mem_size = sizeof_field(CPU_CONTEXT, FloatSave.ErrorSelector);
+ UINT32_P(&env->fpip)[1] = ldl_p(buf + offset);
+ break;
+
+ case offsetof(CPU_CONTEXT, FloatSave.DataOffset):
+ mem_size = sizeof_field(CPU_CONTEXT, FloatSave.DataOffset);
+ UINT32_P(&env->fpdp)[0] = ldl_p(buf + offset);
+ break;
+
+ case offsetof(CPU_CONTEXT, FloatSave.DataSelector):
+ mem_size = sizeof_field(CPU_CONTEXT, FloatSave.DataSelector);
+ UINT32_P(&env->fpdp)[1] = ldl_p(buf + offset);
+ break;
+
+ case offsetof(CPU_CONTEXT, FloatSave.RegisterArea):
+ mem_size = sizeof_field(CPU_CONTEXT, FloatSave.RegisterArea);
+ for (i = 0; i < 8; ++i) {
+ memcpy(PTR(env->fpregs[i]), mem_ptr + i * 10, 10);
+ }
+ break;
+
+ case offsetof(CPU_CONTEXT, FloatSave.Cr0NpxState):
+ mem_size = sizeof_field(CPU_CONTEXT, FloatSave.Cr0NpxState);
+ env->xcr0 = ldl_p(buf + offset);
+ break;
+
+ case offsetof(CPU_CONTEXT, SegGs):
+ mem_size = sizeof_field(CPU_CONTEXT, SegGs);
+ windbg_set_sr(cpu, R_GS, lduw_p(buf + offset));
+ break;
+
+ case offsetof(CPU_CONTEXT, SegFs):
+ mem_size = sizeof_field(CPU_CONTEXT, SegFs);
+ windbg_set_sr(cpu, R_FS, lduw_p(buf + offset));
+ break;
+
+ case offsetof(CPU_CONTEXT, SegEs):
+ mem_size = sizeof_field(CPU_CONTEXT, SegEs);
+ windbg_set_sr(cpu, R_ES, lduw_p(buf + offset));
+ break;
+
+ case offsetof(CPU_CONTEXT, SegDs):
+ mem_size = sizeof_field(CPU_CONTEXT, SegDs);
+ windbg_set_sr(cpu, R_DS, lduw_p(buf + offset));
+ break;
+
+ case offsetof(CPU_CONTEXT, Edi):
+ mem_size = sizeof_field(CPU_CONTEXT, Edi);
+ env->regs[R_EDI] = ldl_p(buf + offset);
+ break;
+
+ case offsetof(CPU_CONTEXT, Esi):
+ mem_size = sizeof_field(CPU_CONTEXT, Esi);
+ env->regs[R_ESI] = ldl_p(buf + offset);
+ break;
+
+ case offsetof(CPU_CONTEXT, Ebx):
+ mem_size = sizeof_field(CPU_CONTEXT, Ebx);
+ env->regs[R_EBX] = ldl_p(buf + offset);
+ break;
+
+ case offsetof(CPU_CONTEXT, Edx):
+ mem_size = sizeof_field(CPU_CONTEXT, Edx);
+ env->regs[R_EDX] = ldl_p(buf + offset);
+ break;
+
+ case offsetof(CPU_CONTEXT, Ecx):
+ mem_size = sizeof_field(CPU_CONTEXT, Ecx);
+ env->regs[R_ECX] = ldl_p(buf + offset);
+ break;
+
+ case offsetof(CPU_CONTEXT, Eax):
+ mem_size = sizeof_field(CPU_CONTEXT, Eax);
+ env->regs[R_EAX] = ldl_p(buf + offset);
+ break;
+
+ case offsetof(CPU_CONTEXT, Ebp):
+ mem_size = sizeof_field(CPU_CONTEXT, Ebp);
+ env->regs[R_EBP] = ldl_p(buf + offset);
+ break;
+
+ case offsetof(CPU_CONTEXT, Eip):
+ mem_size = sizeof_field(CPU_CONTEXT, Eip);
+ env->eip = ldl_p(buf + offset);
+ break;
+
+ case offsetof(CPU_CONTEXT, SegCs):
+ mem_size = sizeof_field(CPU_CONTEXT, SegCs);
+ windbg_set_sr(cpu, R_CS, lduw_p(buf + offset));
+ break;
+
+ case offsetof(CPU_CONTEXT, EFlags):
+ mem_size = sizeof_field(CPU_CONTEXT, EFlags);
+ env->eflags = ldl_p(buf + offset);
+ break;
+
+ case offsetof(CPU_CONTEXT, Esp):
+ mem_size = sizeof_field(CPU_CONTEXT, Esp);
+ env->regs[R_ESP] = ldl_p(buf + offset);
+ break;
+
+ case offsetof(CPU_CONTEXT, SegSs):
+ mem_size = sizeof_field(CPU_CONTEXT, SegSs);
+ windbg_set_sr(cpu, R_SS, lduw_p(buf + offset));
+ break;
+
+ case offsetof(CPU_CONTEXT, ExtendedRegisters):
+ mem_size = sizeof_field(CPU_CONTEXT, ExtendedRegisters);
+
+ uint8_t *ptr = mem_ptr + 160;
+ for (i = 0; i < 8; ++i, ptr += 16) {
+ env->xmm_regs[i].ZMM_Q(0) = ldl_p(ptr);
+ env->xmm_regs[i].ZMM_Q(1) = ldl_p(ptr + 8);
+ }
+
+ cpu_set_mxcsr(env, ldl_p(mem_ptr + 24));
+ break;
+
+ default:
+ WINDBG_ERROR("write_context: Unknown offset %d", offset);
+ return -1;
+ }
+
+ mem_ptr += mem_size;
+ offset += mem_size;
+ len -= mem_size;
+ }
+
return 0;
}