#include <i386/iopb_entries.h>
#include <i386/mp_desc.h>
#include <i386/cpu_data.h>
-
+#include <i386/machine_routines.h>
/*
* Maps state flavor to number of words in the state:
*/
-__private_extern__
unsigned int _MachineStateCount[] = {
- /* FLAVOR_LIST */ 0,
- i386_NEW_THREAD_STATE_COUNT,
- i386_FLOAT_STATE_COUNT,
- i386_ISA_PORT_MAP_STATE_COUNT,
- i386_V86_ASSIST_STATE_COUNT,
- i386_REGS_SEGS_STATE_COUNT,
- i386_THREAD_SYSCALL_STATE_COUNT,
- /* THREAD_STATE_NONE */ 0,
- i386_SAVED_STATE_COUNT,
+ /* FLAVOR_LIST */
+ 0,
+ x86_THREAD_STATE32_COUNT,
+ x86_FLOAT_STATE32_COUNT,
+ x86_EXCEPTION_STATE32_COUNT,
+ x86_THREAD_STATE64_COUNT,
+ x86_FLOAT_STATE64_COUNT,
+ x86_EXCEPTION_STATE64_COUNT,
+ x86_THREAD_STATE_COUNT,
+ x86_FLOAT_STATE_COUNT,
+ x86_EXCEPTION_STATE_COUNT,
+ 0,
+ x86_SAVED_STATE32_COUNT,
+ x86_SAVED_STATE64_COUNT,
+ x86_DEBUG_STATE32_COUNT,
+ x86_DEBUG_STATE64_COUNT,
+ x86_DEBUG_STATE_COUNT
};
+zone_t iss_zone32; /* zone for 32bit saved_state area */
+zone_t iss_zone64; /* zone for 64bit saved_state area */
+zone_t ids_zone32; /* zone for 32bit debug_state area */
+zone_t ids_zone64; /* zone for 64bit debug_state area */
+
+
/* Forward */
void act_machine_throughcall(thread_t thr_act);
extern void Load_context(
thread_t thread);
+
+static void
+get_exception_state32(thread_t thread, x86_exception_state32_t *es);
+
+static void
+get_exception_state64(thread_t thread, x86_exception_state64_t *es);
+
+static void
+get_thread_state32(thread_t thread, x86_thread_state32_t *ts);
+
+static void
+get_thread_state64(thread_t thread, x86_thread_state64_t *ts);
+
+static int
+set_thread_state32(thread_t thread, x86_thread_state32_t *ts);
+
+static int
+set_thread_state64(thread_t thread, x86_thread_state64_t *ts);
+
+/*
+ * Don't let an illegal value for dr7 get set. Specifically,
+ * check for undefined settings. Setting these bit patterns
+ * result in undefined behaviour and can lead to an unexpected
+ * TRCTRAP.
+ */
+static boolean_t
+dr7_is_valid(uint32_t *dr7)
+{
+ int i;
+ uint32_t mask1, mask2;
+
+ /*
+ * If the DE bit is set in CR4, R/W0-3 can be pattern
+ * "10B" to indicate i/o reads and write
+ */
+ if (!(get_cr4() & CR4_DE))
+ for (i = 0, mask1 = 0x3<<16, mask2 = 0x2<<16; i < 4;
+ i++, mask1 <<= 4, mask2 <<= 4)
+ if ((*dr7 & mask1) == mask2)
+ return (FALSE);
+
+ /*
+ * len0-3 pattern "10B" is ok for len on 64-bit.
+ */
+ if (current_cpu_datap()->cpu_is64bit == TRUE)
+ for (i = 0, mask1 = 0x3<<18, mask2 = 0x2<<18; i < 4;
+ i++, mask1 <<= 4, mask2 <<= 4)
+ if ((*dr7 & mask1) == mask2)
+ return (FALSE);
+
+ /*
+ * if we are doing an instruction execution break (indicated
+ * by r/w[x] being "00B"), then the len[x] must also be set
+ * to "00B"
+ */
+ for (i = 0; i < 4; i++)
+ if (((((*dr7 >> (16 + i*4))) & 0x3) == 0) &&
+ ((((*dr7 >> (18 + i*4))) & 0x3) != 0))
+ return (FALSE);
+
+ /*
+ * Intel docs have these bits fixed.
+ */
+ *dr7 |= 0x1 << 10; /* set bit 10 to 1 */
+ *dr7 &= ~(0x1 << 11); /* set bit 11 to 0 */
+ *dr7 &= ~(0x1 << 12); /* set bit 12 to 0 */
+ *dr7 &= ~(0x1 << 14); /* set bit 14 to 0 */
+ *dr7 &= ~(0x1 << 15); /* set bit 15 to 0 */
+
+ /*
+ * We don't allow anything to set the global breakpoints.
+ */
+
+ if (*dr7 & 0x2)
+ return (FALSE);
+
+ if (*dr7 & (0x2<<2))
+ return (FALSE);
+
+ if (*dr7 & (0x2<<4))
+ return (FALSE);
+
+ if (*dr7 & (0x2<<6))
+ return (FALSE);
+
+ return (TRUE);
+}
+
+static inline void
+set_live_debug_state32(cpu_data_t *cdp, x86_debug_state32_t *ds)
+{
+ __asm__ volatile ("movl %0,%%db0" : :"r" (ds->dr0));
+ __asm__ volatile ("movl %0,%%db1" : :"r" (ds->dr1));
+ __asm__ volatile ("movl %0,%%db2" : :"r" (ds->dr2));
+ __asm__ volatile ("movl %0,%%db3" : :"r" (ds->dr3));
+ if (cpu_mode_is64bit())
+ cdp->cpu_dr7 = ds->dr7;
+}
+
+extern void set_64bit_debug_regs(x86_debug_state64_t *ds);
+
+static inline void
+set_live_debug_state64(cpu_data_t *cdp, x86_debug_state64_t *ds)
+{
+ /*
+ * We need to enter 64-bit mode in order to set the full
+ * width of these registers
+ */
+ set_64bit_debug_regs(ds);
+ cdp->cpu_dr7 = ds->dr7;
+}
+
+static kern_return_t
+set_debug_state32(thread_t thread, x86_debug_state32_t *ds)
+{
+ x86_debug_state32_t *ids;
+ pcb_t pcb;
+
+ pcb = thread->machine.pcb;
+ ids = pcb->ids;
+
+ if (ids == NULL) {
+ ids = zalloc(ids_zone32);
+ bzero(ids, sizeof *ids);
+
+ simple_lock(&pcb->lock);
+ /* make sure it wasn't already alloc()'d elsewhere */
+ if (pcb->ids == NULL) {
+ pcb->ids = ids;
+ simple_unlock(&pcb->lock);
+ } else {
+ simple_unlock(&pcb->lock);
+ zfree(ids_zone32, ids);
+ }
+ }
+
+ if (!dr7_is_valid(&ds->dr7))
+ goto err;
+
+ /*
+ * Only allow local breakpoints and make sure they are not
+ * in the trampoline code.
+ */
+
+ if (ds->dr7 & 0x1)
+ if (ds->dr0 >= (unsigned long)HIGH_MEM_BASE)
+ goto err;
+
+ if (ds->dr7 & (0x1<<2))
+ if (ds->dr1 >= (unsigned long)HIGH_MEM_BASE)
+ goto err;
+
+ if (ds->dr7 & (0x1<<4))
+ if (ds->dr2 >= (unsigned long)HIGH_MEM_BASE)
+ goto err;
+
+ if (ds->dr7 & (0x1<<6))
+ if (ds->dr3 >= (unsigned long)HIGH_MEM_BASE)
+ goto err;
+
+ ids->dr0 = ds->dr0;
+ ids->dr1 = ds->dr1;
+ ids->dr2 = ds->dr2;
+ ids->dr3 = ds->dr3;
+ ids->dr6 = ds->dr6;
+ ids->dr7 = ds->dr7;
+
+ return (KERN_SUCCESS);
+
+err:
+ return (KERN_INVALID_ARGUMENT);
+}
+
+static kern_return_t
+set_debug_state64(thread_t thread, x86_debug_state64_t *ds)
+{
+ x86_debug_state64_t *ids;
+ pcb_t pcb;
+
+ pcb = thread->machine.pcb;
+ ids = pcb->ids;
+
+ if (ids == NULL) {
+ ids = zalloc(ids_zone64);
+ bzero(ids, sizeof *ids);
+
+ simple_lock(&pcb->lock);
+ /* make sure it wasn't already alloc()'d elsewhere */
+ if (pcb->ids == NULL) {
+ pcb->ids = ids;
+ simple_unlock(&pcb->lock);
+ } else {
+ simple_unlock(&pcb->lock);
+ zfree(ids_zone64, ids);
+ }
+ }
+
+ if (!dr7_is_valid((uint32_t *)&ds->dr7))
+ goto err;
+
+ /*
+ * Don't allow the user to set debug addresses above their max
+ * value
+ */
+ if (ds->dr7 & 0x1)
+ if (ds->dr0 >= VM_MAX_PAGE_ADDRESS)
+ goto err;
+
+ if (ds->dr7 & (0x1<<2))
+ if (ds->dr1 >= VM_MAX_PAGE_ADDRESS)
+ goto err;
+
+ if (ds->dr7 & (0x1<<4))
+ if (ds->dr2 >= VM_MAX_PAGE_ADDRESS)
+ goto err;
+
+ if (ds->dr7 & (0x1<<6))
+ if (ds->dr3 >= VM_MAX_PAGE_ADDRESS)
+ goto err;
+
+ ids->dr0 = ds->dr0;
+ ids->dr1 = ds->dr1;
+ ids->dr2 = ds->dr2;
+ ids->dr3 = ds->dr3;
+ ids->dr6 = ds->dr6;
+ ids->dr7 = ds->dr7;
+
+ return (KERN_SUCCESS);
+
+err:
+ return (KERN_INVALID_ARGUMENT);
+}
+
+static void
+get_debug_state32(thread_t thread, x86_debug_state32_t *ds)
+{
+ x86_debug_state32_t *saved_state;
+
+ saved_state = thread->machine.pcb->ids;
+
+ if (saved_state) {
+ ds->dr0 = saved_state->dr0;
+ ds->dr1 = saved_state->dr1;
+ ds->dr2 = saved_state->dr2;
+ ds->dr3 = saved_state->dr3;
+ ds->dr4 = saved_state->dr4;
+ ds->dr5 = saved_state->dr5;
+ ds->dr6 = saved_state->dr6;
+ ds->dr7 = saved_state->dr7;
+ } else
+ bzero(ds, sizeof *ds);
+}
+
+static void
+get_debug_state64(thread_t thread, x86_debug_state64_t *ds)
+{
+ x86_debug_state64_t *saved_state;
+
+ saved_state = (x86_debug_state64_t *)thread->machine.pcb->ids;
+
+ if (saved_state) {
+ ds->dr0 = saved_state->dr0;
+ ds->dr1 = saved_state->dr1;
+ ds->dr2 = saved_state->dr2;
+ ds->dr3 = saved_state->dr3;
+ ds->dr4 = saved_state->dr4;
+ ds->dr5 = saved_state->dr5;
+ ds->dr6 = saved_state->dr6;
+ ds->dr7 = saved_state->dr7;
+ } else
+ bzero(ds, sizeof *ds);
+}
+
/*
* consider_machine_collect:
*
}
-// DEBUG
-int DEBUG_kldt = 0;
-int DEBUG_uldt = 0;
static void
act_machine_switch_pcb( thread_t new )
{
- pcb_t pcb = new->machine.pcb;
- int mycpu;
- register iopb_tss_t tss = pcb->ims.io_tss;
+ pcb_t pcb = new->machine.pcb;
+ struct real_descriptor *ldtp;
vm_offset_t pcb_stack_top;
- register user_ldt_t uldt = pcb->ims.ldt;
+ vm_offset_t hi_pcb_stack_top;
+ vm_offset_t hi_iss;
+ cpu_data_t *cdp = current_cpu_datap();
- assert(new->kernel_stack != 0);
- STACK_IEL(new->kernel_stack)->saved_state =
- &new->machine.pcb->iss;
+ assert(new->kernel_stack != 0);
+ STACK_IEL(new->kernel_stack)->saved_state = pcb->iss;
- /*
- * Save a pointer to the top of the "kernel" stack -
- * actually the place in the PCB where a trap into
- * kernel mode will push the registers.
- * The location depends on V8086 mode. If we are
- * not in V8086 mode, then a trap into the kernel
- * won`t save the v86 segments, so we leave room.
- */
+ if (!cpu_mode_is64bit()) {
+ x86_saved_state32_tagged_t *hi_iss32;
- pcb_stack_top = (pcb->iss.efl & EFL_VM)
- ? (int) (&pcb->iss + 1)
- : (int) (&pcb->iss.v86_segs);
-
- mp_disable_preemption();
- mycpu = cpu_number();
-
- if (tss == 0) {
- /*
- * No per-thread IO permissions.
- * Use standard kernel TSS.
- */
- if (!(gdt_desc_p(KERNEL_TSS)->access & ACC_TSS_BUSY))
- set_tr(KERNEL_TSS);
- current_ktss()->esp0 = pcb_stack_top;
- }
- else {
- /*
- * Set the IO permissions. Use this thread`s TSS.
- */
- *gdt_desc_p(USER_TSS)
- = *(struct real_descriptor *)tss->iopb_desc;
- tss->tss.esp0 = pcb_stack_top;
- set_tr(USER_TSS);
- gdt_desc_p(KERNEL_TSS)->access &= ~ ACC_TSS_BUSY;
- }
+ /*
+ * Save a pointer to the top of the "kernel" stack -
+ * actually the place in the PCB where a trap into
+ * kernel mode will push the registers.
+ */
+ hi_iss = (vm_offset_t)((unsigned long)
+ pmap_cpu_high_map_vaddr(cpu_number(), HIGH_CPU_ISS0) |
+ ((unsigned long)pcb->iss & PAGE_MASK));
+
+ cdp->cpu_hi_iss = (void *)hi_iss;
- /*
- * Set the thread`s LDT or LDT entry.
- */
- if (uldt == 0) {
- struct real_descriptor *ldtp;
- /*
- * Use system LDT.
- */
- // Set up the tasks specific ldt entries if extant
- ldtp = (struct real_descriptor *)current_ldt();
- ldtp[sel_idx(USER_CTHREAD)] = pcb->cthread_desc;
- if (pcb->uldt_selector != 0)
- ldtp[sel_idx(pcb->uldt_selector)] = pcb->uldt_desc;
- set_ldt(KERNEL_LDT);
- }
- else {
- /*
- * Thread has its own LDT. // THIS SHOULD BE REMOVED!!!!
- */
- *gdt_desc_p(USER_LDT) = uldt->desc;
- set_ldt(USER_LDT);
- /*debug*/
- if ((DEBUG_uldt++ % 0x7fff) == 0)
- printf("KERNEL----> setting user ldt");
+ pmap_high_map(pcb->iss_pte0, HIGH_CPU_ISS0);
+ pmap_high_map(pcb->iss_pte1, HIGH_CPU_ISS1);
+
+ hi_iss32 = (x86_saved_state32_tagged_t *) hi_iss;
+ assert(hi_iss32->tag == x86_SAVED_STATE32);
+
+ hi_pcb_stack_top = (int) (hi_iss32 + 1);
+
+ /*
+ * For fast syscall, top of interrupt stack points to pcb stack
+ */
+ *(vm_offset_t *) current_sstk() = hi_pcb_stack_top;
+
+ current_ktss()->esp0 = hi_pcb_stack_top;
+/* XXX: This check is performed against the thread save state flavor rather than the
+ * task's 64-bit feature flag because of the thread/task 64-bit state divergence
+ * that can arise in task_set_64bit() on x86. When that is addressed, we can
+ * revert to checking the task 64 bit feature flag. The assert below is retained
+ * for that reason.
+ */
+ } else if (is_saved_state64(pcb->iss)) {
+ x86_saved_state64_tagged_t *iss64;
+ vm_offset_t isf;
+
+ assert(is_saved_state64(pcb->iss));
+
+ iss64 = (x86_saved_state64_tagged_t *) pcb->iss;
+ /*
+ * Set pointer to PCB's interrupt stack frame in cpu data.
+ * Used by syscall and double-fault trap handlers.
+ */
+ isf = (vm_offset_t) &iss64->state.isf;
+ cdp->cpu_uber.cu_isf = UBER64(isf);
+ pcb_stack_top = (vm_offset_t) (iss64 + 1);
+ /* require 16-byte alignment */
+ assert((pcb_stack_top & 0xF) == 0);
+ /* Interrupt stack is pcb */
+ current_ktss64()->rsp0 = UBER64(pcb_stack_top);
+
+ /*
+ * Top of temporary sysenter stack points to pcb stack.
+ * Although this is not normally used by 64-bit users,
+ * it needs to be set in case a sysenter is attempted.
+ */
+ *current_sstk64() = UBER64(pcb_stack_top);
+
+ cdp->cpu_task_map = new->map->pmap->pm_kernel_cr3 ?
+ TASK_MAP_64BIT_SHARED : TASK_MAP_64BIT;
+
+ /*
+ * Enable the 64-bit user code segment, USER64_CS.
+ */
+ ldt_desc_p(USER64_CS)->access |= ACC_PL_U;
+
+ } else {
+ x86_saved_state_compat32_t *iss32compat;
+ vm_offset_t isf;
+
+ assert(is_saved_state32(pcb->iss));
+ iss32compat = (x86_saved_state_compat32_t *) pcb->iss;
+
+ pcb_stack_top = (int) (iss32compat + 1);
+ /* require 16-byte alignment */
+ assert((pcb_stack_top & 0xF) == 0);
+
+ /*
+ * Set pointer to PCB's interrupt stack frame in cpu data.
+ * Used by debug trap handler.
+ */
+ isf = (vm_offset_t) &iss32compat->isf64;
+ cdp->cpu_uber.cu_isf = UBER64(isf);
+
+ /* Top of temporary sysenter stack points to pcb stack */
+ *current_sstk64() = UBER64(pcb_stack_top);
+
+ /* Interrupt stack is pcb */
+ current_ktss64()->rsp0 = UBER64(pcb_stack_top);
+
+ cdp->cpu_task_map = TASK_MAP_32BIT;
+
+ /*
+ * Disable USER64_CS
+ */
+ ldt_desc_p(USER64_CS)->access &= ~ACC_PL_U;
}
- mp_enable_preemption();
/*
- * Load the floating-point context, if necessary.
+ * Set the thread`s cthread (a.k.a pthread)
+ * For 32-bit user this involves setting the USER_CTHREAD
+ * descriptor in the LDT to point to the cthread data.
+ * The involves copying in the pre-initialized descriptor.
+ */
+ ldtp = (struct real_descriptor *)current_ldt();
+ ldtp[sel_idx(USER_CTHREAD)] = pcb->cthread_desc;
+ if (pcb->uldt_selector != 0)
+ ldtp[sel_idx(pcb->uldt_selector)] = pcb->uldt_desc;
+ /*
+ * For 64-bit, we additionally set the 64-bit User GS base
+ * address. On return to 64-bit user, the GS.Base MSR will be written.
*/
- fpu_load_context(pcb);
+ cdp->cpu_uber.cu_user_gs_base = pcb->cthread_self;
+ /*
+ * Set the thread`s LDT or LDT entry.
+ */
+ if (new->task == TASK_NULL || new->task->i386_ldt == 0) {
+ /*
+ * Use system LDT.
+ */
+ ml_cpu_set_ldt(KERNEL_LDT);
+ } else {
+ /*
+ * Task has its own LDT.
+ */
+ user_ldt_set(new);
+ }
}
/*
machine_load_context(
thread_t new)
{
+ new->machine.specFlags |= OnProc;
act_machine_switch_pcb(new);
Load_context(new);
}
*/
fpu_save_context(old);
+ old->machine.specFlags &= ~OnProc;
+ new->machine.specFlags |= OnProc;
+
/*
* Switch address maps if need be, even if not switching tasks.
* (A server activation may be "borrowing" a client map.)
*/
- {
- int mycpu = cpu_number();
-
- PMAP_SWITCH_CONTEXT(old, new, mycpu)
- }
+ PMAP_SWITCH_CONTEXT(old, new, cpu_number())
/*
* Load the rest of the user state for the new thread
*/
act_machine_switch_pcb(new);
- KERNEL_DEBUG_CONSTANT(MACHDBG_CODE(DBG_MACH_SCHED,MACH_SCHED) | DBG_FUNC_NONE,
- (int)old, (int)new, old->sched_pri, new->sched_pri, 0);
- old->continuation = NULL;
+ KERNEL_DEBUG_CONSTANT(
+ MACHDBG_CODE(DBG_MACH_SCHED,MACH_SCHED) | DBG_FUNC_NONE,
+ (int)old, (int)new, old->sched_pri, new->sched_pri, 0);
return(Switch_context(old, continuation, new));
}
machine_thread_state_initialize(
thread_t thread)
{
-#pragma unused (thread)
+ /*
+ * If there's an fpu save area, free it.
+ * The initialized state will then be lazily faulted-in, if required.
+ * And if we're target, re-arm the no-fpu trap.
+ */
+ if (thread->machine.pcb->ifps) {
+ (void) fpu_set_fxstate(thread, NULL);
- return KERN_SUCCESS;
+ if (thread == current_thread())
+ clear_fpu();
+ }
+ return KERN_SUCCESS;
}
-
-
+
+uint32_t
+get_eflags_exportmask(void)
+{
+ return EFL_USER_SET;
+}
+
+/*
+ * x86_SAVED_STATE32 - internal save/restore general register state on 32/64 bit processors
+ * for 32bit tasks only
+ * x86_SAVED_STATE64 - internal save/restore general register state on 64 bit processors
+ * for 64bit tasks only
+ * x86_THREAD_STATE32 - external set/get general register state on 32/64 bit processors
+ * for 32bit tasks only
+ * x86_THREAD_STATE64 - external set/get general register state on 64 bit processors
+ * for 64bit tasks only
+ * x86_SAVED_STATE - external set/get general register state on 32/64 bit processors
+ * for either 32bit or 64bit tasks
+ * x86_FLOAT_STATE32 - internal/external save/restore float and xmm state on 32/64 bit processors
+ * for 32bit tasks only
+ * x86_FLOAT_STATE64 - internal/external save/restore float and xmm state on 64 bit processors
+ * for 64bit tasks only
+ * x86_FLOAT_STATE - external save/restore float and xmm state on 32/64 bit processors
+ * for either 32bit or 64bit tasks
+ * x86_EXCEPTION_STATE32 - external get exception state on 32/64 bit processors
+ * for 32bit tasks only
+ * x86_EXCEPTION_STATE64 - external get exception state on 64 bit processors
+ * for 64bit tasks only
+ * x86_EXCEPTION_STATE - external get exception state on 323/64 bit processors
+ * for either 32bit or 64bit tasks
+ */
+
+
+static void
+get_exception_state64(thread_t thread, x86_exception_state64_t *es)
+{
+ x86_saved_state64_t *saved_state;
+
+ saved_state = USER_REGS64(thread);
+
+ es->trapno = saved_state->isf.trapno;
+ es->err = saved_state->isf.err;
+ es->faultvaddr = saved_state->cr2;
+}
+
+static void
+get_exception_state32(thread_t thread, x86_exception_state32_t *es)
+{
+ x86_saved_state32_t *saved_state;
+
+ saved_state = USER_REGS32(thread);
+
+ es->trapno = saved_state->trapno;
+ es->err = saved_state->err;
+ es->faultvaddr = saved_state->cr2;
+}
+
+
+static int
+set_thread_state32(thread_t thread, x86_thread_state32_t *ts)
+{
+ x86_saved_state32_t *saved_state;
+
+ saved_state = USER_REGS32(thread);
+
+ saved_state->eax = ts->eax;
+ saved_state->ebx = ts->ebx;
+ saved_state->ecx = ts->ecx;
+ saved_state->edx = ts->edx;
+ saved_state->edi = ts->edi;
+ saved_state->esi = ts->esi;
+ saved_state->ebp = ts->ebp;
+ saved_state->uesp = ts->esp;
+ saved_state->efl = (ts->eflags & ~EFL_USER_CLEAR) | EFL_USER_SET;
+ saved_state->eip = ts->eip;
+ saved_state->cs = ts->cs ? ts->cs : USER_CS;
+ saved_state->ss = ts->ss ? ts->ss : USER_DS;
+ saved_state->ds = ts->ds ? ts->ds : USER_DS;
+ saved_state->es = ts->es ? ts->es : USER_DS;
+ saved_state->fs = ts->fs;
+ saved_state->gs = ts->gs;
+
+ /*
+ * If the trace trap bit is being set,
+ * ensure that the user returns via iret
+ * - which is signaled thusly:
+ */
+ if ((saved_state->efl & EFL_TF) && saved_state->cs == SYSENTER_CS)
+ saved_state->cs = SYSENTER_TF_CS;
+
+ return(KERN_SUCCESS);
+}
+
+static int
+set_thread_state64(thread_t thread, x86_thread_state64_t *ts)
+{
+ x86_saved_state64_t *saved_state;
+
+ saved_state = USER_REGS64(thread);
+
+ if (!IS_USERADDR64_CANONICAL(ts->rsp) ||
+ !IS_USERADDR64_CANONICAL(ts->rip))
+ return(KERN_INVALID_ARGUMENT);
+
+ saved_state->r8 = ts->r8;
+ saved_state->r9 = ts->r9;
+ saved_state->r10 = ts->r10;
+ saved_state->r11 = ts->r11;
+ saved_state->r12 = ts->r12;
+ saved_state->r13 = ts->r13;
+ saved_state->r14 = ts->r14;
+ saved_state->r15 = ts->r15;
+ saved_state->rax = ts->rax;
+ saved_state->rax = ts->rax;
+ saved_state->rbx = ts->rbx;
+ saved_state->rcx = ts->rcx;
+ saved_state->rdx = ts->rdx;
+ saved_state->rdi = ts->rdi;
+ saved_state->rsi = ts->rsi;
+ saved_state->rbp = ts->rbp;
+ saved_state->isf.rsp = ts->rsp;
+ saved_state->isf.rflags = (ts->rflags & ~EFL_USER_CLEAR) | EFL_USER_SET;
+ saved_state->isf.rip = ts->rip;
+ saved_state->isf.cs = USER64_CS;
+ saved_state->fs = ts->fs;
+ saved_state->gs = ts->gs;
+
+ return(KERN_SUCCESS);
+}
+
+
+
+static void
+get_thread_state32(thread_t thread, x86_thread_state32_t *ts)
+{
+ x86_saved_state32_t *saved_state;
+
+ saved_state = USER_REGS32(thread);
+
+ ts->eax = saved_state->eax;
+ ts->ebx = saved_state->ebx;
+ ts->ecx = saved_state->ecx;
+ ts->edx = saved_state->edx;
+ ts->edi = saved_state->edi;
+ ts->esi = saved_state->esi;
+ ts->ebp = saved_state->ebp;
+ ts->esp = saved_state->uesp;
+ ts->eflags = saved_state->efl;
+ ts->eip = saved_state->eip;
+ ts->cs = saved_state->cs;
+ ts->ss = saved_state->ss;
+ ts->ds = saved_state->ds;
+ ts->es = saved_state->es;
+ ts->fs = saved_state->fs;
+ ts->gs = saved_state->gs;
+}
+
+
+static void
+get_thread_state64(thread_t thread, x86_thread_state64_t *ts)
+{
+ x86_saved_state64_t *saved_state;
+
+ saved_state = USER_REGS64(thread);
+
+ ts->r8 = saved_state->r8;
+ ts->r9 = saved_state->r9;
+ ts->r10 = saved_state->r10;
+ ts->r11 = saved_state->r11;
+ ts->r12 = saved_state->r12;
+ ts->r13 = saved_state->r13;
+ ts->r14 = saved_state->r14;
+ ts->r15 = saved_state->r15;
+ ts->rax = saved_state->rax;
+ ts->rbx = saved_state->rbx;
+ ts->rcx = saved_state->rcx;
+ ts->rdx = saved_state->rdx;
+ ts->rdi = saved_state->rdi;
+ ts->rsi = saved_state->rsi;
+ ts->rbp = saved_state->rbp;
+ ts->rsp = saved_state->isf.rsp;
+ ts->rflags = saved_state->isf.rflags;
+ ts->rip = saved_state->isf.rip;
+ ts->cs = saved_state->isf.cs;
+ ts->fs = saved_state->fs;
+ ts->gs = saved_state->gs;
+}
+
+
+
/*
* act_machine_set_state:
*
thread_state_t tstate,
mach_msg_type_number_t count)
{
- int kernel_act = 0;
-
- switch (flavor) {
- case THREAD_SYSCALL_STATE:
- {
- register struct thread_syscall_state *state;
- register struct i386_saved_state *saved_state = USER_REGS(thr_act);
- state = (struct thread_syscall_state *) tstate;
- saved_state->eax = state->eax;
- saved_state->edx = state->edx;
- if (kernel_act)
- saved_state->efl = state->efl;
- else
- saved_state->efl = (state->efl & ~EFL_USER_CLEAR) | EFL_USER_SET;
- saved_state->eip = state->eip;
- saved_state->uesp = state->esp;
- break;
- }
-
- case i386_SAVED_STATE:
+ switch (flavor)
+ {
+ case x86_SAVED_STATE32:
{
- register struct i386_saved_state *state;
- register struct i386_saved_state *saved_state;
+ x86_saved_state32_t *state;
+ x86_saved_state32_t *saved_state;
- if (count < i386_SAVED_STATE_COUNT) {
- return(KERN_INVALID_ARGUMENT);
- }
+ if (count < x86_SAVED_STATE32_COUNT)
+ return(KERN_INVALID_ARGUMENT);
- state = (struct i386_saved_state *) tstate;
+ state = (x86_saved_state32_t *) tstate;
/* Check segment selectors are safe */
- if (!kernel_act &&
- !valid_user_segment_selectors(state->cs,
+ if (!valid_user_segment_selectors(state->cs,
state->ss,
state->ds,
state->es,
state->fs,
state->gs))
- return KERN_INVALID_ARGUMENT;
+ return KERN_INVALID_ARGUMENT;
- saved_state = USER_REGS(thr_act);
+ saved_state = USER_REGS32(thr_act);
/*
* General registers
saved_state->ecx = state->ecx;
saved_state->eax = state->eax;
saved_state->eip = state->eip;
- if (kernel_act)
- saved_state->efl = state->efl;
- else
- saved_state->efl = (state->efl & ~EFL_USER_CLEAR)
- | EFL_USER_SET;
+
+ saved_state->efl = (state->efl & ~EFL_USER_CLEAR) | EFL_USER_SET;
/*
- * Segment registers. Set differently in V8086 mode.
+ * If the trace trap bit is being set,
+ * ensure that the user returns via iret
+ * - which is signaled thusly:
*/
- if (state->efl & EFL_VM) {
- /*
- * Set V8086 mode segment registers.
- */
- saved_state->cs = state->cs & 0xffff;
- saved_state->ss = state->ss & 0xffff;
- saved_state->v86_segs.v86_ds = state->ds & 0xffff;
- saved_state->v86_segs.v86_es = state->es & 0xffff;
- saved_state->v86_segs.v86_fs = state->fs & 0xffff;
- saved_state->v86_segs.v86_gs = state->gs & 0xffff;
-
- /*
- * Zero protected mode segment registers.
- */
- saved_state->ds = 0;
- saved_state->es = 0;
- saved_state->fs = 0;
- saved_state->gs = 0;
-
- if (thr_act->machine.pcb->ims.v86s.int_table) {
- /*
- * Hardware assist on.
- */
- thr_act->machine.pcb->ims.v86s.flags =
- state->efl & (EFL_TF | EFL_IF);
- }
- }
- else if (kernel_act) {
- /*
- * 386 mode. Set segment registers for flat
- * 32-bit address space.
- */
- saved_state->cs = KERNEL_CS;
- saved_state->ss = KERNEL_DS;
- saved_state->ds = KERNEL_DS;
- saved_state->es = KERNEL_DS;
- saved_state->fs = KERNEL_DS;
- saved_state->gs = CPU_DATA_GS;
- }
- else {
- /*
- * User setting segment registers.
- * Code and stack selectors have already been
- * checked. Others will be reset by 'iret'
- * if they are not valid.
- */
- saved_state->cs = state->cs;
- saved_state->ss = state->ss;
- saved_state->ds = state->ds;
- saved_state->es = state->es;
- saved_state->fs = state->fs;
- saved_state->gs = state->gs;
- }
+ if ((saved_state->efl & EFL_TF) && state->cs == SYSENTER_CS)
+ state->cs = SYSENTER_TF_CS;
+
+ /*
+ * User setting segment registers.
+ * Code and stack selectors have already been
+ * checked. Others will be reset by 'iret'
+ * if they are not valid.
+ */
+ saved_state->cs = state->cs;
+ saved_state->ss = state->ss;
+ saved_state->ds = state->ds;
+ saved_state->es = state->es;
+ saved_state->fs = state->fs;
+ saved_state->gs = state->gs;
break;
}
- case i386_NEW_THREAD_STATE:
- case i386_REGS_SEGS_STATE:
+ case x86_SAVED_STATE64:
{
- register struct i386_new_thread_state *state;
- register struct i386_saved_state *saved_state;
+ x86_saved_state64_t *state;
+ x86_saved_state64_t *saved_state;
- if (count < i386_NEW_THREAD_STATE_COUNT) {
- return(KERN_INVALID_ARGUMENT);
- }
+ if (count < x86_SAVED_STATE64_COUNT)
+ return(KERN_INVALID_ARGUMENT);
- state = (struct i386_new_thread_state *) tstate;
-
- if (flavor == i386_REGS_SEGS_STATE) {
- /*
- * Code and stack selectors must not be null,
- * and must have user protection levels.
- * Only the low 16 bits are valid.
- */
- state->cs &= 0xffff;
- state->ss &= 0xffff;
- state->ds &= 0xffff;
- state->es &= 0xffff;
- state->fs &= 0xffff;
- state->gs &= 0xffff;
-
- if (!kernel_act &&
- !valid_user_segment_selectors(state->cs,
- state->ss,
- state->ds,
- state->es,
- state->fs,
- state->gs))
+ state = (x86_saved_state64_t *) tstate;
+
+ /* Verify that the supplied code segment selector is
+ * valid. In 64-bit mode, the FS and GS segment overrides
+ * use the FS.base and GS.base MSRs to calculate
+ * base addresses, and the trampolines don't directly
+ * restore the segment registers--hence they are no
+ * longer relevant for validation.
+ */
+ if (!valid_user_code_selector(state->isf.cs))
+ return KERN_INVALID_ARGUMENT;
+
+ /* Check pc and stack are canonical addresses */
+ if (!IS_USERADDR64_CANONICAL(state->isf.rsp) ||
+ !IS_USERADDR64_CANONICAL(state->isf.rip))
return KERN_INVALID_ARGUMENT;
- }
- saved_state = USER_REGS(thr_act);
+ saved_state = USER_REGS64(thr_act);
/*
* General registers
*/
- saved_state->edi = state->edi;
- saved_state->esi = state->esi;
- saved_state->ebp = state->ebp;
- saved_state->uesp = state->uesp;
- saved_state->ebx = state->ebx;
- saved_state->edx = state->edx;
- saved_state->ecx = state->ecx;
- saved_state->eax = state->eax;
- saved_state->eip = state->eip;
- if (kernel_act)
- saved_state->efl = state->efl;
- else
- saved_state->efl = (state->efl & ~EFL_USER_CLEAR)
- | EFL_USER_SET;
-
- /*
- * Segment registers. Set differently in V8086 mode.
+ saved_state->r8 = state->r8;
+ saved_state->r9 = state->r9;
+ saved_state->r10 = state->r10;
+ saved_state->r11 = state->r11;
+ saved_state->r12 = state->r12;
+ saved_state->r13 = state->r13;
+ saved_state->r14 = state->r14;
+ saved_state->r15 = state->r15;
+ saved_state->rdi = state->rdi;
+ saved_state->rsi = state->rsi;
+ saved_state->rbp = state->rbp;
+ saved_state->rbx = state->rbx;
+ saved_state->rdx = state->rdx;
+ saved_state->rcx = state->rcx;
+ saved_state->rax = state->rax;
+ saved_state->isf.rsp = state->isf.rsp;
+ saved_state->isf.rip = state->isf.rip;
+
+ saved_state->isf.rflags = (state->isf.rflags & ~EFL_USER_CLEAR) | EFL_USER_SET;
+
+ /*
+ * User setting segment registers.
+ * Code and stack selectors have already been
+ * checked. Others will be reset by 'sys'
+ * if they are not valid.
*/
- if (state->efl & EFL_VM) {
- /*
- * Set V8086 mode segment registers.
- */
- saved_state->cs = state->cs & 0xffff;
- saved_state->ss = state->ss & 0xffff;
- saved_state->v86_segs.v86_ds = state->ds & 0xffff;
- saved_state->v86_segs.v86_es = state->es & 0xffff;
- saved_state->v86_segs.v86_fs = state->fs & 0xffff;
- saved_state->v86_segs.v86_gs = state->gs & 0xffff;
-
- /*
- * Zero protected mode segment registers.
- */
- saved_state->ds = 0;
- saved_state->es = 0;
- saved_state->fs = 0;
- saved_state->gs = 0;
-
- if (thr_act->machine.pcb->ims.v86s.int_table) {
- /*
- * Hardware assist on.
- */
- thr_act->machine.pcb->ims.v86s.flags =
- state->efl & (EFL_TF | EFL_IF);
- }
- }
- else if (flavor == i386_NEW_THREAD_STATE && kernel_act) {
- /*
- * 386 mode. Set segment registers for flat
- * 32-bit address space.
- */
- saved_state->cs = KERNEL_CS;
- saved_state->ss = KERNEL_DS;
- saved_state->ds = KERNEL_DS;
- saved_state->es = KERNEL_DS;
- saved_state->fs = KERNEL_DS;
- saved_state->gs = CPU_DATA_GS;
- }
- else {
- /*
- * User setting segment registers.
- * Code and stack selectors have already been
- * checked. Others will be reset by 'iret'
- * if they are not valid.
- */
- saved_state->cs = state->cs;
- saved_state->ss = state->ss;
- saved_state->ds = state->ds;
- saved_state->es = state->es;
- saved_state->fs = state->fs;
- saved_state->gs = state->gs;
- }
+ saved_state->isf.cs = state->isf.cs;
+ saved_state->isf.ss = state->isf.ss;
+ saved_state->fs = state->fs;
+ saved_state->gs = state->gs;
+
break;
}
- case i386_FLOAT_STATE: {
- if (count < i386_old_FLOAT_STATE_COUNT)
+ case x86_FLOAT_STATE32:
+ {
+ if (count != x86_FLOAT_STATE32_COUNT)
return(KERN_INVALID_ARGUMENT);
- if (count < i386_FLOAT_STATE_COUNT)
- return fpu_set_state(thr_act,(struct i386_float_state*)tstate);
- else return fpu_set_fxstate(thr_act,(struct i386_float_state*)tstate);
+
+ if (thread_is_64bit(thr_act))
+ return(KERN_INVALID_ARGUMENT);
+
+ return fpu_set_fxstate(thr_act, tstate);
}
- /*
- * Temporary - replace by i386_io_map
- */
- case i386_ISA_PORT_MAP_STATE: {
- if (count < i386_ISA_PORT_MAP_STATE_COUNT)
+ case x86_FLOAT_STATE64:
+ {
+ if (count != x86_FLOAT_STATE64_COUNT)
return(KERN_INVALID_ARGUMENT);
- break;
+ if ( !thread_is_64bit(thr_act))
+ return(KERN_INVALID_ARGUMENT);
+
+ return fpu_set_fxstate(thr_act, tstate);
+ }
+
+ case x86_FLOAT_STATE:
+ {
+ x86_float_state_t *state;
+
+ if (count != x86_FLOAT_STATE_COUNT)
+ return(KERN_INVALID_ARGUMENT);
+
+ state = (x86_float_state_t *)tstate;
+
+ if (state->fsh.flavor == x86_FLOAT_STATE64 && state->fsh.count == x86_FLOAT_STATE64_COUNT &&
+ thread_is_64bit(thr_act)) {
+ return fpu_set_fxstate(thr_act, (thread_state_t)&state->ufs.fs64);
+ }
+ if (state->fsh.flavor == x86_FLOAT_STATE32 && state->fsh.count == x86_FLOAT_STATE32_COUNT &&
+ !thread_is_64bit(thr_act)) {
+ return fpu_set_fxstate(thr_act, (thread_state_t)&state->ufs.fs32);
+ }
+ return(KERN_INVALID_ARGUMENT);
}
- case i386_V86_ASSIST_STATE:
+
+
+ case OLD_i386_THREAD_STATE:
+ case x86_THREAD_STATE32:
{
- register struct i386_v86_assist_state *state;
- vm_offset_t int_table;
- int int_count;
+ if (count != x86_THREAD_STATE32_COUNT)
+ return(KERN_INVALID_ARGUMENT);
- if (count < i386_V86_ASSIST_STATE_COUNT)
- return KERN_INVALID_ARGUMENT;
+ if (thread_is_64bit(thr_act))
+ return(KERN_INVALID_ARGUMENT);
+
+ return set_thread_state32(thr_act, (x86_thread_state32_t *)tstate);
+ }
- state = (struct i386_v86_assist_state *) tstate;
- int_table = state->int_table;
- int_count = state->int_count;
+ case x86_THREAD_STATE64:
+ {
+ if (count != x86_THREAD_STATE64_COUNT)
+ return(KERN_INVALID_ARGUMENT);
- if (int_table >= VM_MAX_ADDRESS ||
- int_table +
- int_count * sizeof(struct v86_interrupt_table)
- > VM_MAX_ADDRESS)
- return KERN_INVALID_ARGUMENT;
+ if ( !thread_is_64bit(thr_act))
+ return(KERN_INVALID_ARGUMENT);
- thr_act->machine.pcb->ims.v86s.int_table = int_table;
- thr_act->machine.pcb->ims.v86s.int_count = int_count;
+ return set_thread_state64(thr_act, (x86_thread_state64_t *)tstate);
+ }
+
+ case x86_THREAD_STATE:
+ {
+ x86_thread_state_t *state;
+
+ if (count != x86_THREAD_STATE_COUNT)
+ return(KERN_INVALID_ARGUMENT);
+
+ state = (x86_thread_state_t *)tstate;
+
+ if (state->tsh.flavor == x86_THREAD_STATE64 && state->tsh.count == x86_THREAD_STATE64_COUNT &&
+ thread_is_64bit(thr_act)) {
+ return set_thread_state64(thr_act, &state->uts.ts64);
+ } else if (state->tsh.flavor == x86_THREAD_STATE32 && state->tsh.count == x86_THREAD_STATE32_COUNT &&
+ !thread_is_64bit(thr_act)) {
+ return set_thread_state32(thr_act, &state->uts.ts32);
+ } else
+ return(KERN_INVALID_ARGUMENT);
- thr_act->machine.pcb->ims.v86s.flags =
- USER_REGS(thr_act)->efl & (EFL_TF | EFL_IF);
break;
}
+ case x86_DEBUG_STATE32:
+ {
+ x86_debug_state32_t *state;
+ kern_return_t ret;
- case i386_THREAD_STATE: {
- struct i386_saved_state *saved_state;
- i386_thread_state_t *state25;
-
- saved_state = USER_REGS(thr_act);
- state25 = (i386_thread_state_t *)tstate;
-
- saved_state->eax = state25->eax;
- saved_state->ebx = state25->ebx;
- saved_state->ecx = state25->ecx;
- saved_state->edx = state25->edx;
- saved_state->edi = state25->edi;
- saved_state->esi = state25->esi;
- saved_state->ebp = state25->ebp;
- saved_state->uesp = state25->esp;
- saved_state->efl = (state25->eflags & ~EFL_USER_CLEAR)
- | EFL_USER_SET;
- saved_state->eip = state25->eip;
- saved_state->cs = USER_CS; /* FIXME? */
- saved_state->ss = USER_DS;
- saved_state->ds = USER_DS;
- saved_state->es = USER_DS;
- saved_state->fs = state25->fs;
- saved_state->gs = state25->gs;
+ if (thread_is_64bit(thr_act))
+ return(KERN_INVALID_ARGUMENT);
+
+ state = (x86_debug_state32_t *)tstate;
+
+ ret = set_debug_state32(thr_act, state);
+
+ return ret;
}
- break;
+ case x86_DEBUG_STATE64:
+ {
+ x86_debug_state64_t *state;
+ kern_return_t ret;
- default:
+ if (!thread_is_64bit(thr_act))
+ return(KERN_INVALID_ARGUMENT);
+
+ state = (x86_debug_state64_t *)tstate;
+
+ ret = set_debug_state64(thr_act, state);
+
+ return ret;
+ }
+ case x86_DEBUG_STATE:
+ {
+ x86_debug_state_t *state;
+ kern_return_t ret = KERN_INVALID_ARGUMENT;
+
+ if (count != x86_DEBUG_STATE_COUNT)
+ return (KERN_INVALID_ARGUMENT);
+
+ state = (x86_debug_state_t *)tstate;
+ if (state->dsh.flavor == x86_DEBUG_STATE64 &&
+ state->dsh.count == x86_DEBUG_STATE64_COUNT &&
+ thread_is_64bit(thr_act)) {
+ ret = set_debug_state64(thr_act, &state->uds.ds64);
+ }
+ else
+ if (state->dsh.flavor == x86_DEBUG_STATE32 &&
+ state->dsh.count == x86_DEBUG_STATE32_COUNT &&
+ !thread_is_64bit(thr_act)) {
+ ret = set_debug_state32(thr_act, &state->uds.ds32);
+ }
+ return ret;
+ }
+ default:
return(KERN_INVALID_ARGUMENT);
}
return(KERN_SUCCESS);
}
+
+
/*
* thread_getstatus:
*
* Get the status of the specified thread.
*/
-
kern_return_t
machine_thread_get_state(
thread_t thr_act,
{
switch (flavor) {
- case i386_SAVED_STATE:
+ case THREAD_STATE_FLAVOR_LIST:
+ {
+ if (*count < 3)
+ return (KERN_INVALID_ARGUMENT);
+
+ tstate[0] = i386_THREAD_STATE;
+ tstate[1] = i386_FLOAT_STATE;
+ tstate[2] = i386_EXCEPTION_STATE;
+
+ *count = 3;
+ break;
+ }
+
+ case THREAD_STATE_FLAVOR_LIST_NEW:
+ {
+ if (*count < 4)
+ return (KERN_INVALID_ARGUMENT);
+
+ tstate[0] = x86_THREAD_STATE;
+ tstate[1] = x86_FLOAT_STATE;
+ tstate[2] = x86_EXCEPTION_STATE;
+ tstate[3] = x86_DEBUG_STATE;
+
+ *count = 4;
+ break;
+ }
+
+ case x86_SAVED_STATE32:
{
- register struct i386_saved_state *state;
- register struct i386_saved_state *saved_state;
+ x86_saved_state32_t *state;
+ x86_saved_state32_t *saved_state;
- if (*count < i386_SAVED_STATE_COUNT)
- return(KERN_INVALID_ARGUMENT);
+ if (*count < x86_SAVED_STATE32_COUNT)
+ return(KERN_INVALID_ARGUMENT);
- state = (struct i386_saved_state *) tstate;
- saved_state = USER_REGS(thr_act);
+ state = (x86_saved_state32_t *) tstate;
+ saved_state = USER_REGS32(thr_act);
/*
* First, copy everything:
*/
*state = *saved_state;
+ state->ds = saved_state->ds & 0xffff;
+ state->es = saved_state->es & 0xffff;
+ state->fs = saved_state->fs & 0xffff;
+ state->gs = saved_state->gs & 0xffff;
- if (saved_state->efl & EFL_VM) {
- /*
- * V8086 mode.
- */
- state->ds = saved_state->v86_segs.v86_ds & 0xffff;
- state->es = saved_state->v86_segs.v86_es & 0xffff;
- state->fs = saved_state->v86_segs.v86_fs & 0xffff;
- state->gs = saved_state->v86_segs.v86_gs & 0xffff;
-
- if (thr_act->machine.pcb->ims.v86s.int_table) {
- /*
- * Hardware assist on
- */
- if ((thr_act->machine.pcb->ims.v86s.flags &
- (EFL_IF|V86_IF_PENDING)) == 0)
- state->efl &= ~EFL_IF;
- }
- }
- else {
- /*
- * 386 mode.
- */
- state->ds = saved_state->ds & 0xffff;
- state->es = saved_state->es & 0xffff;
- state->fs = saved_state->fs & 0xffff;
- state->gs = saved_state->gs & 0xffff;
- }
- *count = i386_SAVED_STATE_COUNT;
+ *count = x86_SAVED_STATE32_COUNT;
break;
}
- case i386_NEW_THREAD_STATE:
- case i386_REGS_SEGS_STATE:
+ case x86_SAVED_STATE64:
{
- register struct i386_new_thread_state *state;
- register struct i386_saved_state *saved_state;
+ x86_saved_state64_t *state;
+ x86_saved_state64_t *saved_state;
- if (*count < i386_NEW_THREAD_STATE_COUNT)
- return(KERN_INVALID_ARGUMENT);
+ if (*count < x86_SAVED_STATE64_COUNT)
+ return(KERN_INVALID_ARGUMENT);
- state = (struct i386_new_thread_state *) tstate;
- saved_state = USER_REGS(thr_act);
+ state = (x86_saved_state64_t *)tstate;
+ saved_state = USER_REGS64(thr_act);
/*
- * General registers.
+ * First, copy everything:
*/
- state->edi = saved_state->edi;
- state->esi = saved_state->esi;
- state->ebp = saved_state->ebp;
- state->ebx = saved_state->ebx;
- state->edx = saved_state->edx;
- state->ecx = saved_state->ecx;
- state->eax = saved_state->eax;
- state->eip = saved_state->eip;
- state->efl = saved_state->efl;
- state->uesp = saved_state->uesp;
-
- state->cs = saved_state->cs;
- state->ss = saved_state->ss;
- if (saved_state->efl & EFL_VM) {
- /*
- * V8086 mode.
- */
- state->ds = saved_state->v86_segs.v86_ds & 0xffff;
- state->es = saved_state->v86_segs.v86_es & 0xffff;
- state->fs = saved_state->v86_segs.v86_fs & 0xffff;
- state->gs = saved_state->v86_segs.v86_gs & 0xffff;
-
- if (thr_act->machine.pcb->ims.v86s.int_table) {
- /*
- * Hardware assist on
- */
- if ((thr_act->machine.pcb->ims.v86s.flags &
- (EFL_IF|V86_IF_PENDING)) == 0)
- state->efl &= ~EFL_IF;
- }
- }
- else {
- /*
- * 386 mode.
- */
- state->ds = saved_state->ds & 0xffff;
- state->es = saved_state->es & 0xffff;
- state->fs = saved_state->fs & 0xffff;
- state->gs = saved_state->gs & 0xffff;
- }
- *count = i386_NEW_THREAD_STATE_COUNT;
+ *state = *saved_state;
+ state->fs = saved_state->fs & 0xffff;
+ state->gs = saved_state->gs & 0xffff;
+
+ *count = x86_SAVED_STATE64_COUNT;
break;
}
- case THREAD_SYSCALL_STATE:
+ case x86_FLOAT_STATE32:
{
- register struct thread_syscall_state *state;
- register struct i386_saved_state *saved_state = USER_REGS(thr_act);
-
- state = (struct thread_syscall_state *) tstate;
- state->eax = saved_state->eax;
- state->edx = saved_state->edx;
- state->efl = saved_state->efl;
- state->eip = saved_state->eip;
- state->esp = saved_state->uesp;
- *count = i386_THREAD_SYSCALL_STATE_COUNT;
- break;
+ if (*count < x86_FLOAT_STATE32_COUNT)
+ return(KERN_INVALID_ARGUMENT);
+
+ if (thread_is_64bit(thr_act))
+ return(KERN_INVALID_ARGUMENT);
+
+ *count = x86_FLOAT_STATE32_COUNT;
+
+ return fpu_get_fxstate(thr_act, tstate);
}
- case THREAD_STATE_FLAVOR_LIST:
- if (*count < 5)
- return (KERN_INVALID_ARGUMENT);
- tstate[0] = i386_NEW_THREAD_STATE;
- tstate[1] = i386_FLOAT_STATE;
- tstate[2] = i386_ISA_PORT_MAP_STATE;
- tstate[3] = i386_V86_ASSIST_STATE;
- tstate[4] = THREAD_SYSCALL_STATE;
- *count = 5;
+ case x86_FLOAT_STATE64:
+ {
+ if (*count < x86_FLOAT_STATE64_COUNT)
+ return(KERN_INVALID_ARGUMENT);
+
+ if ( !thread_is_64bit(thr_act))
+ return(KERN_INVALID_ARGUMENT);
+
+ *count = x86_FLOAT_STATE64_COUNT;
+
+ return fpu_get_fxstate(thr_act, tstate);
+ }
+
+ case x86_FLOAT_STATE:
+ {
+ x86_float_state_t *state;
+ kern_return_t kret;
+
+ if (*count < x86_FLOAT_STATE_COUNT)
+ return(KERN_INVALID_ARGUMENT);
+
+ state = (x86_float_state_t *)tstate;
+
+ /*
+ * no need to bzero... currently
+ * x86_FLOAT_STATE64_COUNT == x86_FLOAT_STATE32_COUNT
+ */
+ if (thread_is_64bit(thr_act)) {
+ state->fsh.flavor = x86_FLOAT_STATE64;
+ state->fsh.count = x86_FLOAT_STATE64_COUNT;
+
+ kret = fpu_get_fxstate(thr_act, (thread_state_t)&state->ufs.fs64);
+ } else {
+ state->fsh.flavor = x86_FLOAT_STATE32;
+ state->fsh.count = x86_FLOAT_STATE32_COUNT;
+
+ kret = fpu_get_fxstate(thr_act, (thread_state_t)&state->ufs.fs32);
+ }
+ *count = x86_FLOAT_STATE_COUNT;
+
+ return(kret);
+ }
+
+
+ case OLD_i386_THREAD_STATE:
+ case x86_THREAD_STATE32:
+ {
+ if (*count < x86_THREAD_STATE32_COUNT)
+ return(KERN_INVALID_ARGUMENT);
+
+ if (thread_is_64bit(thr_act))
+ return(KERN_INVALID_ARGUMENT);
+
+ *count = x86_THREAD_STATE32_COUNT;
+
+ get_thread_state32(thr_act, (x86_thread_state32_t *)tstate);
break;
+ }
- case i386_FLOAT_STATE: {
- if (*count < i386_old_FLOAT_STATE_COUNT)
+ case x86_THREAD_STATE64:
+ {
+ if (*count < x86_THREAD_STATE64_COUNT)
return(KERN_INVALID_ARGUMENT);
- if (*count< i386_FLOAT_STATE_COUNT) {
- *count = i386_old_FLOAT_STATE_COUNT;
- return fpu_get_state(thr_act,(struct i386_float_state *)tstate);
- } else {
- *count = i386_FLOAT_STATE_COUNT;
- return fpu_get_fxstate(thr_act,(struct i386_float_state *)tstate);
- }
+
+ if ( !thread_is_64bit(thr_act))
+ return(KERN_INVALID_ARGUMENT);
+
+ *count = x86_THREAD_STATE64_COUNT;
+
+ get_thread_state64(thr_act, (x86_thread_state64_t *)tstate);
+ break;
}
- /*
- * Temporary - replace by i386_io_map
- */
- case i386_ISA_PORT_MAP_STATE: {
- register struct i386_isa_port_map_state *state;
- register iopb_tss_t tss;
+ case x86_THREAD_STATE:
+ {
+ x86_thread_state_t *state;
- if (*count < i386_ISA_PORT_MAP_STATE_COUNT)
+ if (*count < x86_THREAD_STATE_COUNT)
return(KERN_INVALID_ARGUMENT);
- state = (struct i386_isa_port_map_state *) tstate;
- tss = thr_act->machine.pcb->ims.io_tss;
+ state = (x86_thread_state_t *)tstate;
- if (tss == 0) {
- unsigned int i;
+ bzero((char *)state, sizeof(x86_thread_state_t));
- /*
- * The thread has no ktss, so no IO permissions.
- */
+ if (thread_is_64bit(thr_act)) {
+ state->tsh.flavor = x86_THREAD_STATE64;
+ state->tsh.count = x86_THREAD_STATE64_COUNT;
- for (i = 0; i < sizeof state->pm; i++)
- state->pm[i] = 0xff;
+ get_thread_state64(thr_act, &state->uts.ts64);
} else {
- /*
- * The thread has its own ktss.
- */
+ state->tsh.flavor = x86_THREAD_STATE32;
+ state->tsh.count = x86_THREAD_STATE32_COUNT;
- bcopy((char *) tss->bitmap,
- (char *) state->pm,
- sizeof state->pm);
+ get_thread_state32(thr_act, &state->uts.ts32);
}
+ *count = x86_THREAD_STATE_COUNT;
+
+ break;
+ }
+
+
+ case x86_EXCEPTION_STATE32:
+ {
+ if (*count < x86_EXCEPTION_STATE32_COUNT)
+ return(KERN_INVALID_ARGUMENT);
+
+ if (thread_is_64bit(thr_act))
+ return(KERN_INVALID_ARGUMENT);
+
+ *count = x86_EXCEPTION_STATE32_COUNT;
- *count = i386_ISA_PORT_MAP_STATE_COUNT;
+ get_exception_state32(thr_act, (x86_exception_state32_t *)tstate);
break;
}
- case i386_V86_ASSIST_STATE:
+ case x86_EXCEPTION_STATE64:
{
- register struct i386_v86_assist_state *state;
+ if (*count < x86_EXCEPTION_STATE64_COUNT)
+ return(KERN_INVALID_ARGUMENT);
- if (*count < i386_V86_ASSIST_STATE_COUNT)
- return KERN_INVALID_ARGUMENT;
+ if ( !thread_is_64bit(thr_act))
+ return(KERN_INVALID_ARGUMENT);
- state = (struct i386_v86_assist_state *) tstate;
- state->int_table = thr_act->machine.pcb->ims.v86s.int_table;
- state->int_count = thr_act->machine.pcb->ims.v86s.int_count;
+ *count = x86_EXCEPTION_STATE64_COUNT;
- *count = i386_V86_ASSIST_STATE_COUNT;
+ get_exception_state64(thr_act, (x86_exception_state64_t *)tstate);
break;
}
- case i386_THREAD_STATE: {
- struct i386_saved_state *saved_state;
- i386_thread_state_t *state;
-
- saved_state = USER_REGS(thr_act);
- state = (i386_thread_state_t *)tstate;
-
- state->eax = saved_state->eax;
- state->ebx = saved_state->ebx;
- state->ecx = saved_state->ecx;
- state->edx = saved_state->edx;
- state->edi = saved_state->edi;
- state->esi = saved_state->esi;
- state->ebp = saved_state->ebp;
- state->esp = saved_state->uesp;
- state->eflags = saved_state->efl;
- state->eip = saved_state->eip;
- state->cs = saved_state->cs;
- state->ss = saved_state->ss;
- state->ds = saved_state->ds;
- state->es = saved_state->es;
- state->fs = saved_state->fs;
- state->gs = saved_state->gs;
+ case x86_EXCEPTION_STATE:
+ {
+ x86_exception_state_t *state;
+
+ if (*count < x86_EXCEPTION_STATE_COUNT)
+ return(KERN_INVALID_ARGUMENT);
+
+ state = (x86_exception_state_t *)tstate;
+
+ bzero((char *)state, sizeof(x86_exception_state_t));
+
+ if (thread_is_64bit(thr_act)) {
+ state->esh.flavor = x86_EXCEPTION_STATE64;
+ state->esh.count = x86_EXCEPTION_STATE64_COUNT;
+
+ get_exception_state64(thr_act, &state->ues.es64);
+ } else {
+ state->esh.flavor = x86_EXCEPTION_STATE32;
+ state->esh.count = x86_EXCEPTION_STATE32_COUNT;
+
+ get_exception_state32(thr_act, &state->ues.es32);
+ }
+ *count = x86_EXCEPTION_STATE_COUNT;
+
+ break;
+ }
+ case x86_DEBUG_STATE32:
+ {
+ if (*count < x86_DEBUG_STATE32_COUNT)
+ return(KERN_INVALID_ARGUMENT);
+
+ if (thread_is_64bit(thr_act))
+ return(KERN_INVALID_ARGUMENT);
+
+ get_debug_state32(thr_act, (x86_debug_state32_t *)tstate);
+
+ *count = x86_DEBUG_STATE32_COUNT;
+
+ break;
+ }
+ case x86_DEBUG_STATE64:
+ {
+ if (*count < x86_DEBUG_STATE64_COUNT)
+ return(KERN_INVALID_ARGUMENT);
+
+ if (!thread_is_64bit(thr_act))
+ return(KERN_INVALID_ARGUMENT);
+
+ get_debug_state64(thr_act, (x86_debug_state64_t *)tstate);
+
+ *count = x86_DEBUG_STATE64_COUNT;
+
break;
}
+ case x86_DEBUG_STATE:
+ {
+ x86_debug_state_t *state;
+
+ if (*count < x86_DEBUG_STATE_COUNT)
+ return(KERN_INVALID_ARGUMENT);
+
+ state = (x86_debug_state_t *)tstate;
+
+ bzero(state, sizeof *state);
+
+ if (thread_is_64bit(thr_act)) {
+ state->dsh.flavor = x86_DEBUG_STATE64;
+ state->dsh.count = x86_DEBUG_STATE64_COUNT;
+
+ get_debug_state64(thr_act, &state->uds.ds64);
+ } else {
+ state->dsh.flavor = x86_DEBUG_STATE32;
+ state->dsh.count = x86_DEBUG_STATE32_COUNT;
+ get_debug_state32(thr_act, &state->uds.ds32);
+ }
+ *count = x86_DEBUG_STATE_COUNT;
+ break;
+ }
default:
return(KERN_INVALID_ARGUMENT);
}
return(KERN_SUCCESS);
}
+kern_return_t
+machine_thread_get_kern_state(
+ thread_t thread,
+ thread_flavor_t flavor,
+ thread_state_t tstate,
+ mach_msg_type_number_t *count)
+{
+
+ /*
+ * This works only for an interrupted kernel thread
+ */
+ if (thread != current_thread() || current_cpu_datap()->cpu_int_state == NULL)
+ return KERN_FAILURE;
+
+ switch(flavor) {
+
+ case x86_THREAD_STATE32:
+ {
+
+ x86_thread_state32_t *state;
+ x86_saved_state32_t *saved_state;
+
+ if (*count < x86_THREAD_STATE32_COUNT)
+ return(KERN_INVALID_ARGUMENT);
+
+ state = (x86_thread_state32_t *)tstate;
+
+ assert(is_saved_state32(current_cpu_datap()->cpu_int_state));
+ saved_state = saved_state32(current_cpu_datap()->cpu_int_state);
+ /*
+ * General registers.
+ */
+ state->eax = saved_state->eax;
+ state->ebx = saved_state->ebx;
+ state->ecx = saved_state->ecx;
+ state->edx = saved_state->edx;
+ state->edi = saved_state->edi;
+ state->esi = saved_state->esi;
+ state->ebp = saved_state->ebp;
+ state->esp = saved_state->uesp;
+ state->eflags = saved_state->efl;
+ state->eip = saved_state->eip;
+ state->cs = saved_state->cs;
+ state->ss = saved_state->ss;
+ state->ds = saved_state->ds & 0xffff;
+ state->es = saved_state->es & 0xffff;
+ state->fs = saved_state->fs & 0xffff;
+ state->gs = saved_state->gs & 0xffff;
+
+ *count = x86_THREAD_STATE32_COUNT;
+
+ return KERN_SUCCESS;
+ }
+ break; // for completeness
+
+ case x86_THREAD_STATE:
+ {
+ // wrap a 32 bit thread state into a 32/64bit clean thread state
+ x86_thread_state_t *state;
+ x86_saved_state32_t *saved_state;
+
+ if(*count < x86_THREAD_STATE_COUNT)
+ return (KERN_INVALID_ARGUMENT);
+
+ state = (x86_thread_state_t *)tstate;
+ assert(is_saved_state32(current_cpu_datap()->cpu_int_state));
+ saved_state = saved_state32(current_cpu_datap()->cpu_int_state);
+
+ state->tsh.flavor = x86_THREAD_STATE32;
+ state->tsh.count = x86_THREAD_STATE32_COUNT;
+
+ /*
+ * General registers.
+ */
+
+ state->uts.ts32.eax = saved_state->eax;
+ state->uts.ts32.ebx = saved_state->ebx;
+ state->uts.ts32.ecx = saved_state->ecx;
+ state->uts.ts32.edx = saved_state->edx;
+ state->uts.ts32.edi = saved_state->edi;
+ state->uts.ts32.esi = saved_state->esi;
+ state->uts.ts32.ebp = saved_state->ebp;
+ state->uts.ts32.esp = saved_state->uesp;
+ state->uts.ts32.eflags = saved_state->efl;
+ state->uts.ts32.eip = saved_state->eip;
+ state->uts.ts32.cs = saved_state->cs;
+ state->uts.ts32.ss = saved_state->ss;
+ state->uts.ts32.ds = saved_state->ds & 0xffff;
+ state->uts.ts32.es = saved_state->es & 0xffff;
+ state->uts.ts32.fs = saved_state->fs & 0xffff;
+ state->uts.ts32.gs = saved_state->gs & 0xffff;
+
+ *count = x86_THREAD_STATE_COUNT;
+ return KERN_SUCCESS;
+ }
+ break;
+ }
+ return KERN_FAILURE;
+}
+
+
/*
* Initialize the machine-dependent state for a new thread.
*/
kern_return_t
machine_thread_create(
thread_t thread,
- __unused task_t task)
+ task_t task)
{
- pcb_t pcb = &thread->machine.xxx_pcb;
+ pcb_t pcb = &thread->machine.xxx_pcb;
+ struct real_descriptor *ldtp;
+ pmap_paddr_t paddr;
+ x86_saved_state_t *iss;
- thread->machine.pcb = pcb;
+ inval_copy_windows(thread);
- simple_lock_init(&pcb->lock, 0);
+ thread->machine.physwindow_pte = 0;
+ thread->machine.physwindow_busy = 0;
- /*
- * Guarantee that the bootstrapped thread will be in user
- * mode.
- */
- pcb->iss.cs = USER_CS;
- pcb->iss.ss = USER_DS;
- pcb->iss.ds = USER_DS;
- pcb->iss.es = USER_DS;
- pcb->iss.fs = USER_DS;
- pcb->iss.gs = USER_DS;
- pcb->iss.efl = EFL_USER_SET;
- {
- struct real_descriptor *ldtp;
- ldtp = (struct real_descriptor *)ldt;
- pcb->cthread_desc = ldtp[sel_idx(USER_DS)];
- pcb->uldt_desc = ldtp[sel_idx(USER_DS)];
- pcb->uldt_selector = 0;
+ if (task_has_64BitAddr(task)) {
+ x86_sframe64_t *sf64;
+
+ sf64 = (x86_sframe64_t *)zalloc(iss_zone64);
+
+ if (sf64 == NULL)
+ panic("iss_zone64");
+ pcb->sf = (void *)sf64;
+
+ bzero((char *)sf64, sizeof(x86_sframe64_t));
+
+ iss = (x86_saved_state_t *) &sf64->ssf;
+ iss->flavor = x86_SAVED_STATE64;
+ /*
+ * Guarantee that the bootstrapped thread will be in user
+ * mode.
+ */
+ iss->ss_64.isf.rflags = EFL_USER_SET;
+ iss->ss_64.isf.cs = USER64_CS;
+ iss->ss_64.isf.ss = USER_DS;
+ iss->ss_64.fs = USER_DS;
+ iss->ss_64.gs = USER_DS;
+ } else {
+ if (cpu_mode_is64bit()) {
+ x86_sframe_compat32_t *sfc32;
+
+ sfc32 = (x86_sframe_compat32_t *)zalloc(iss_zone32);
+ if (sfc32 == NULL)
+ panic("iss_zone32");
+ pcb->sf = (void *)sfc32;
+
+ bzero((char *)sfc32, sizeof(x86_sframe_compat32_t));
+
+ iss = (x86_saved_state_t *) &sfc32->ssf.iss32;
+ iss->flavor = x86_SAVED_STATE32;
+#if DEBUG
+ {
+ x86_saved_state_compat32_t *xssc;
+
+ xssc = (x86_saved_state_compat32_t *) iss;
+ xssc->pad_for_16byte_alignment[0] = 0x64326432;
+ xssc->pad_for_16byte_alignment[1] = 0x64326432;
+ }
+#endif
+ } else {
+ x86_sframe32_t *sf32;
+
+ sf32 = (x86_sframe32_t *)zalloc(iss_zone32);
+
+ if (sf32 == NULL)
+ panic("iss_zone32");
+ pcb->sf = (void *)sf32;
+
+ bzero((char *)sf32, sizeof(x86_sframe32_t));
+
+ iss = (x86_saved_state_t *) &sf32->ssf;
+ iss->flavor = x86_SAVED_STATE32;
+ }
+ /*
+ * Guarantee that the bootstrapped thread will be in user
+ * mode.
+ */
+ iss->ss_32.cs = USER_CS;
+ iss->ss_32.ss = USER_DS;
+ iss->ss_32.ds = USER_DS;
+ iss->ss_32.es = USER_DS;
+ iss->ss_32.fs = USER_DS;
+ iss->ss_32.gs = USER_DS;
+ iss->ss_32.efl = EFL_USER_SET;
}
+ pcb->iss = iss;
- /*
- * Allocate a kernel stack per thread.
- */
- stack_alloc(thread);
+ thread->machine.pcb = pcb;
+ simple_lock_init(&pcb->lock, 0);
+
+ ldtp = (struct real_descriptor *)pmap_index_to_virt(HIGH_FIXED_LDT_BEGIN);
+ pcb->cthread_desc = ldtp[sel_idx(USER_DS)];
+ pcb->uldt_desc = ldtp[sel_idx(USER_DS)];
+ pcb->uldt_selector = 0;
+
+ pcb->iss_pte0 = (uint64_t)pte_kernel_rw(kvtophys((vm_offset_t)pcb->iss));
+
+ if (0 == (paddr = pa_to_pte(kvtophys((vm_offset_t)(pcb->iss) + PAGE_SIZE))))
+ pcb->iss_pte1 = INTEL_PTE_INVALID;
+ else
+ pcb->iss_pte1 = (uint64_t)pte_kernel_rw(paddr);
return(KERN_SUCCESS);
}
assert(pcb);
- if (pcb->ims.io_tss != 0)
- iopb_destroy(pcb->ims.io_tss);
- if (pcb->ims.ifps != 0)
- fpu_free(pcb->ims.ifps);
- if (pcb->ims.ldt != 0)
- user_ldt_free(pcb->ims.ldt);
+ if (pcb->ifps != 0)
+ fpu_free(pcb->ifps);
+ if (pcb->sf != 0) {
+ if (thread_is_64bit(thread))
+ zfree(iss_zone64, pcb->sf);
+ else
+ zfree(iss_zone32, pcb->sf);
+ pcb->sf = 0;
+ }
+ if (pcb->ids) {
+ if (thread_is_64bit(thread))
+ zfree(ids_zone64, pcb->ids);
+ else
+ zfree(ids_zone32, pcb->ids);
+ }
thread->machine.pcb = (pcb_t)0;
+
+}
+
+void
+machine_thread_switch_addrmode(thread_t thread, int oldmode_is64bit)
+{
+ register pcb_t pcb = thread->machine.pcb;
+
+ assert(pcb);
+
+ if (pcb->sf != 0) {
+ if (oldmode_is64bit)
+ zfree(iss_zone64, pcb->sf);
+ else
+ zfree(iss_zone32, pcb->sf);
+ }
+ machine_thread_create(thread, thread->task);
+
+ /* If we're switching ourselves, reset the pcb addresses etc. */
+ if (thread == current_thread())
+ act_machine_switch_pcb(thread);
}
+
+
/*
* This is used to set the current thr_act/thread
* when starting up a new processor
void
machine_set_current_thread( thread_t thread )
{
- mp_disable_preemption();
-
- current_cpu_datap()->cpu_active_thread = thread;
- current_cpu_datap()->cpu_active_kloaded = THREAD_NULL;
-
- mp_enable_preemption();
+ current_cpu_datap()->cpu_active_thread = thread;
}
+/*
+ * This is called when a task is termianted.
+ */
void
machine_thread_terminate_self(void)
{
+ task_t self_task = current_task();
+ if (self_task) {
+ user_ldt_t user_ldt = self_task->i386_ldt;
+ if (user_ldt != 0) {
+ self_task->i386_ldt = 0;
+ user_ldt_free(user_ldt);
+ }
+ }
}
void
void
machine_thread_init(void)
{
+ if (cpu_mode_is64bit()) {
+ iss_zone64 = zinit(sizeof(x86_sframe64_t),
+ THREAD_MAX * sizeof(x86_sframe64_t),
+ THREAD_CHUNK * sizeof(x86_sframe64_t),
+ "x86_64 saved state");
+
+ assert(sizeof(x86_sframe_compat32_t) % 16 == 0);
+ iss_zone32 = zinit(sizeof(x86_sframe_compat32_t),
+ THREAD_MAX * sizeof(x86_sframe_compat32_t),
+ THREAD_CHUNK * sizeof(x86_sframe_compat32_t),
+ "x86_32 saved state");
+
+ ids_zone32 = zinit(sizeof(x86_debug_state32_t),
+ THREAD_MAX * (sizeof(x86_debug_state32_t)),
+ THREAD_CHUNK * (sizeof(x86_debug_state32_t)),
+ "x86_32 debug state");
+ ids_zone64 = zinit(sizeof(x86_debug_state64_t),
+ THREAD_MAX * sizeof(x86_debug_state64_t),
+ THREAD_CHUNK * sizeof(x86_debug_state64_t),
+ "x86_64 debug state");
+
+ } else {
+ iss_zone32 = zinit(sizeof(x86_sframe32_t),
+ THREAD_MAX * sizeof(x86_sframe32_t),
+ THREAD_CHUNK * sizeof(x86_sframe32_t),
+ "x86 saved state");
+ ids_zone32 = zinit(sizeof(x86_debug_state32_t),
+ THREAD_MAX * (sizeof(x86_debug_state32_t)),
+ THREAD_CHUNK * (sizeof(x86_debug_state32_t)),
+ "x86 debug state");
+ }
fpu_module_init();
iopb_init();
}
void
dump_regs(thread_t thr_act)
{
- if (thr_act->machine.pcb) {
- register struct i386_saved_state *ssp = USER_REGS(thr_act);
- /* Print out user register state */
+ if (thr_act->machine.pcb == NULL)
+ return;
+
+ if (thread_is_64bit(thr_act)) {
+ x86_saved_state64_t *ssp;
+
+ ssp = USER_REGS64(thr_act);
+
+ panic("dump_regs: 64bit tasks not yet supported");
+
+ } else {
+ x86_saved_state32_t *ssp;
+
+ ssp = USER_REGS32(thr_act);
+
+ /*
+ * Print out user register state
+ */
printf("\tRegs:\tedi=%x esi=%x ebp=%x ebx=%x edx=%x\n",
ssp->edi, ssp->esi, ssp->ebp, ssp->ebx, ssp->edx);
+
printf("\t\tecx=%x eax=%x eip=%x efl=%x uesp=%x\n",
ssp->ecx, ssp->eax, ssp->eip, ssp->efl, ssp->uesp);
+
printf("\t\tcs=%x ss=%x\n", ssp->cs, ssp->ss);
}
}
user_addr_t
get_useraddr(void)
{
-
thread_t thr_act = current_thread();
- if (thr_act->machine.pcb)
- return(thr_act->machine.pcb->iss.eip);
- else
- return(0);
+ if (thr_act->machine.pcb == NULL)
+ return (0);
+
+ if (thread_is_64bit(thr_act)) {
+ x86_saved_state64_t *iss64;
+
+ iss64 = USER_REGS64(thr_act);
+
+ return(iss64->isf.rip);
+ } else {
+ x86_saved_state32_t *iss32;
+ iss32 = USER_REGS32(thr_act);
+
+ return(iss32->eip);
+ }
}
/*
vm_offset_t
machine_stack_detach(thread_t thread)
{
- vm_offset_t stack;
+ vm_offset_t stack;
- KERNEL_DEBUG(MACHDBG_CODE(DBG_MACH_SCHED,MACH_STACK_DETACH),
- thread, thread->priority,
- thread->sched_pri, 0,
- 0);
+ KERNEL_DEBUG(MACHDBG_CODE(DBG_MACH_SCHED, MACH_STACK_DETACH),
+ thread, thread->priority,
+ thread->sched_pri, 0,
+ 0);
- stack = thread->kernel_stack;
- thread->kernel_stack = 0;
- return(stack);
+ stack = thread->kernel_stack;
+ thread->kernel_stack = 0;
+
+ return (stack);
}
/*
thread_t thread,
vm_offset_t stack)
{
- struct i386_kernel_state *statep;
-
- KERNEL_DEBUG(MACHDBG_CODE(DBG_MACH_SCHED,MACH_STACK_ATTACH),
- thread, thread->priority,
- thread->sched_pri, 0, 0);
+ struct x86_kernel_state32 *statep;
- assert(stack);
- statep = STACK_IKS(stack);
- thread->kernel_stack = stack;
+ KERNEL_DEBUG(MACHDBG_CODE(DBG_MACH_SCHED, MACH_STACK_ATTACH),
+ thread, thread->priority,
+ thread->sched_pri, 0, 0);
- statep->k_eip = (unsigned long) Thread_continue;
- statep->k_ebx = (unsigned long) thread_continue;
- statep->k_esp = (unsigned long) STACK_IEL(stack);
+ assert(stack);
+ thread->kernel_stack = stack;
- STACK_IEL(stack)->saved_state = &thread->machine.pcb->iss;
+ statep = STACK_IKS(stack);
+ statep->k_eip = (unsigned long) Thread_continue;
+ statep->k_ebx = (unsigned long) thread_continue;
+ statep->k_esp = (unsigned long) STACK_IEL(stack);
- return;
+ return;
}
/*
machine_stack_handoff(thread_t old,
thread_t new)
{
- vm_offset_t stack;
+ vm_offset_t stack;
- KERNEL_DEBUG(MACHDBG_CODE(DBG_MACH_SCHED,MACH_STACK_HANDOFF),
- thread, thread->priority,
- thread->sched_pri, 0, 0);
+ assert(new);
+ assert(old);
- assert(new);
- assert(old);
+ stack = old->kernel_stack;
+ if (stack == old->reserved_stack) {
+ assert(new->reserved_stack);
+ old->reserved_stack = new->reserved_stack;
+ new->reserved_stack = stack;
+ }
+ old->kernel_stack = 0;
+ /*
+ * A full call to machine_stack_attach() is unnecessry
+ * because old stack is already initialized.
+ */
+ new->kernel_stack = stack;
- stack = machine_stack_detach(old);
- machine_stack_attach(new, stack);
+ fpu_save_context(old);
- PMAP_SWITCH_CONTEXT(old->task, new->task, cpu_number());
+ old->machine.specFlags &= ~OnProc;
+ new->machine.specFlags |= OnProc;
- KERNEL_DEBUG_CONSTANT(MACHDBG_CODE(DBG_MACH_SCHED,MACH_STACK_HANDOFF) | DBG_FUNC_NONE,
- (int)old, (int)new, old->sched_pri, new->sched_pri, 0);
+ PMAP_SWITCH_CONTEXT(old, new, cpu_number());
+ act_machine_switch_pcb(new);
- machine_set_current_thread(new);
+ KERNEL_DEBUG_CONSTANT(
+ MACHDBG_CODE(DBG_MACH_SCHED, MACH_STACK_HANDOFF)|DBG_FUNC_NONE,
+ old->reason, (int)new, old->sched_pri, new->sched_pri, 0);
- current_cpu_datap()->cpu_active_stack = new->kernel_stack;
+ machine_set_current_thread(new);
- return;
+ return;
}
-struct i386_act_context {
- struct i386_saved_state ss;
- struct i386_float_state fs;
+
+
+
+struct x86_act_context32 {
+ x86_saved_state32_t ss;
+ x86_float_state32_t fs;
+ x86_debug_state32_t ds;
+};
+
+struct x86_act_context64 {
+ x86_saved_state64_t ss;
+ x86_float_state64_t fs;
+ x86_debug_state64_t ds;
};
+
+
void *
act_thread_csave(void)
{
-struct i386_act_context *ic;
-kern_return_t kret;
-int val;
+ kern_return_t kret;
+ mach_msg_type_number_t val;
+ thread_t thr_act = current_thread();
+
+ if (thread_is_64bit(thr_act)) {
+ struct x86_act_context64 *ic64;
- ic = (struct i386_act_context *)kalloc(sizeof(struct i386_act_context));
+ ic64 = (struct x86_act_context64 *)kalloc(sizeof(struct x86_act_context64));
+
+ if (ic64 == (struct x86_act_context64 *)NULL)
+ return((void *)0);
+
+ val = x86_SAVED_STATE64_COUNT;
+ kret = machine_thread_get_state(thr_act, x86_SAVED_STATE64,
+ (thread_state_t) &ic64->ss, &val);
+ if (kret != KERN_SUCCESS) {
+ kfree(ic64, sizeof(struct x86_act_context64));
+ return((void *)0);
+ }
+ val = x86_FLOAT_STATE64_COUNT;
+ kret = machine_thread_get_state(thr_act, x86_FLOAT_STATE64,
+ (thread_state_t) &ic64->fs, &val);
- if (ic == (struct i386_act_context *)NULL)
- return((void *)0);
+ if (kret != KERN_SUCCESS) {
+ kfree(ic64, sizeof(struct x86_act_context64));
+ return((void *)0);
+ }
- val = i386_SAVED_STATE_COUNT;
- kret = machine_thread_get_state(current_thread(),
- i386_SAVED_STATE,
- (thread_state_t) &ic->ss,
+ val = x86_DEBUG_STATE64_COUNT;
+ kret = machine_thread_get_state(thr_act,
+ x86_DEBUG_STATE64,
+ (thread_state_t)&ic64->ds,
&val);
if (kret != KERN_SUCCESS) {
- kfree(ic,sizeof(struct i386_act_context));
- return((void *)0);
+ kfree(ic64, sizeof(struct x86_act_context64));
+ return((void *)0);
+ }
+ return(ic64);
+
+ } else {
+ struct x86_act_context32 *ic32;
+
+ ic32 = (struct x86_act_context32 *)kalloc(sizeof(struct x86_act_context32));
+
+ if (ic32 == (struct x86_act_context32 *)NULL)
+ return((void *)0);
+
+ val = x86_SAVED_STATE32_COUNT;
+ kret = machine_thread_get_state(thr_act, x86_SAVED_STATE32,
+ (thread_state_t) &ic32->ss, &val);
+ if (kret != KERN_SUCCESS) {
+ kfree(ic32, sizeof(struct x86_act_context32));
+ return((void *)0);
}
- val = i386_FLOAT_STATE_COUNT;
- kret = machine_thread_get_state(current_thread(),
- i386_FLOAT_STATE,
- (thread_state_t) &ic->fs,
+ val = x86_FLOAT_STATE32_COUNT;
+ kret = machine_thread_get_state(thr_act, x86_FLOAT_STATE32,
+ (thread_state_t) &ic32->fs, &val);
+ if (kret != KERN_SUCCESS) {
+ kfree(ic32, sizeof(struct x86_act_context32));
+ return((void *)0);
+ }
+
+ val = x86_DEBUG_STATE32_COUNT;
+ kret = machine_thread_get_state(thr_act,
+ x86_DEBUG_STATE32,
+ (thread_state_t)&ic32->ds,
&val);
if (kret != KERN_SUCCESS) {
- kfree(ic,sizeof(struct i386_act_context));
- return((void *)0);
+ kfree(ic32, sizeof(struct x86_act_context32));
+ return((void *)0);
}
- return(ic);
+ return(ic32);
+ }
}
+
+
void
act_thread_catt(void *ctx)
{
-struct i386_act_context *ic;
-kern_return_t kret;
-
- ic = (struct i386_act_context *)ctx;
-
- if (ic == (struct i386_act_context *)NULL)
- return;
-
- kret = machine_thread_set_state(current_thread(),
- i386_SAVED_STATE,
- (thread_state_t) &ic->ss,
- i386_SAVED_STATE_COUNT);
- if (kret != KERN_SUCCESS)
- goto out;
-
- kret = machine_thread_set_state(current_thread(),
- i386_FLOAT_STATE,
- (thread_state_t) &ic->fs,
- i386_FLOAT_STATE_COUNT);
- if (kret != KERN_SUCCESS)
- goto out;
-out:
- kfree(ic,sizeof(struct i386_act_context));
+ thread_t thr_act = current_thread();
+ kern_return_t kret;
+
+ if (ctx == (void *)NULL)
+ return;
+
+ if (thread_is_64bit(thr_act)) {
+ struct x86_act_context64 *ic64;
+
+ ic64 = (struct x86_act_context64 *)ctx;
+
+ kret = machine_thread_set_state(thr_act, x86_SAVED_STATE64,
+ (thread_state_t) &ic64->ss, x86_SAVED_STATE64_COUNT);
+ if (kret == KERN_SUCCESS) {
+ machine_thread_set_state(thr_act, x86_FLOAT_STATE64,
+ (thread_state_t) &ic64->fs, x86_FLOAT_STATE64_COUNT);
+ }
+ kfree(ic64, sizeof(struct x86_act_context64));
+ } else {
+ struct x86_act_context32 *ic32;
+
+ ic32 = (struct x86_act_context32 *)ctx;
+
+ kret = machine_thread_set_state(thr_act, x86_SAVED_STATE32,
+ (thread_state_t) &ic32->ss, x86_SAVED_STATE32_COUNT);
+ if (kret == KERN_SUCCESS) {
+ kret = machine_thread_set_state(thr_act, x86_FLOAT_STATE32,
+ (thread_state_t) &ic32->fs, x86_FLOAT_STATE32_COUNT);
+ if (kret == KERN_SUCCESS && thr_act->machine.pcb->ids)
+ machine_thread_set_state(thr_act,
+ x86_DEBUG_STATE32,
+ (thread_state_t)&ic32->ds,
+ x86_DEBUG_STATE32_COUNT);
+ }
+ kfree(ic32, sizeof(struct x86_act_context32));
+ }
}
-void act_thread_cfree(void *ctx)
+
+void act_thread_cfree(__unused void *ctx)
{
- kfree(ctx,sizeof(struct i386_act_context));
+ /* XXX - Unused */
}
-
projects / apple / xnu.git / blobdiff