* Copyright (c) 2008-2016 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
- *
+ *
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
* unlawful or unlicensed copies of an Apple operating system, or to
* circumvent, violate, or enable the circumvention or violation of, any
* terms of an Apple operating system software license agreement.
- *
+ *
* Please obtain a copy of the License at
* http://www.opensource.apple.com/apsl/ and read it before using this file.
- *
+ *
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
* Please see the License for the specific language governing rights and
* limitations under the License.
- *
+ *
* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
* A (potentially valid) physical address is not a kernel address
* i.e. it'a a user address.
*/
-#define IS_PHYS_ADDR(addr) IS_USERADDR64_CANONICAL(addr)
+#define IS_PHYS_ADDR(addr) IS_USERADDR64_CANONICAL(addr)
boolean_t kdp_read_io;
boolean_t kdp_trans_off;
pmap_t kdp_pmap = 0;
+kdp_jtag_coredump_t kdp_jtag_coredump;
+
pmap_paddr_t
kdp_vtophys(
pmap_t pmap,
vm_offset_t va)
{
pmap_paddr_t pa;
- ppnum_t pp;
- pp = pmap_find_phys(pmap, va);
- if(!pp) return 0;
-
- pa = ((pmap_paddr_t)pp << PAGE_SHIFT) | (va & PAGE_MASK);
+ pa = pmap_find_pa(pmap, va);
- return(pa);
+ return pa;
}
mach_vm_size_t
* source (cur_virt_src); otherwise, the source is translated using the
* kernel_pmap.
*/
- if (kdp_pmap)
+ if (kdp_pmap) {
src_pmap = kdp_pmap;
+ }
while (resid != 0) {
if (!(cur_phys_src = kdp_vtophys(src_pmap,
- cur_virt_src)))
+ cur_virt_src))) {
goto exit;
+ }
/* Always translate the destination buffer using the kernel_pmap */
- if(!(cur_phys_dst = kdp_vtophys(kernel_pmap, cur_virt_dst)))
+ if (!(cur_phys_dst = kdp_vtophys(kernel_pmap, cur_virt_dst))) {
goto exit;
+ }
/* Validate physical page numbers unless kdp_read_io is set */
- if (kdp_read_io == FALSE)
- if (!pmap_valid_page(i386_btop(cur_phys_dst)) || !pmap_valid_page(i386_btop(cur_phys_src)))
+ if (kdp_read_io == FALSE) {
+ if (!pmap_valid_page(i386_btop(cur_phys_dst)) || !pmap_valid_page(i386_btop(cur_phys_src))) {
goto exit;
+ }
+ }
/* Get length left on page */
cnt_src = PAGE_SIZE - (cur_phys_src & PAGE_MASK);
cnt_dst = PAGE_SIZE - (cur_phys_dst & PAGE_MASK);
- if (cnt_src > cnt_dst)
+ if (cnt_src > cnt_dst) {
cnt = cnt_dst;
- else
+ } else {
cnt = cnt_src;
- if (cnt > resid)
+ }
+ if (cnt > resid) {
cnt = resid;
+ }
/* Do a physical copy */
if (EFAULT == ml_copy_phys(cur_phys_src,
- cur_phys_dst,
- (vm_size_t)cnt))
+ cur_phys_dst,
+ (vm_size_t)cnt)) {
goto exit;
+ }
cur_virt_src += cnt;
cur_virt_dst += cnt;
resid -= cnt;
}
exit:
- return (len - resid);
+ return len - resid;
}
mach_vm_size_t
kdp_machine_phys_read(kdp_readphysmem64_req_t *rq, caddr_t dst,
- uint16_t lcpu)
+ uint16_t lcpu)
{
mach_vm_address_t src = rq->address;
mach_vm_size_t len = rq->nbytes;
-
+
addr64_t cur_virt_dst;
addr64_t cur_phys_dst, cur_phys_src;
mach_vm_size_t resid = len;
mach_vm_size_t cnt = 0, cnt_src, cnt_dst;
- if ((lcpu != KDP_CURRENT_LCPU) && (lcpu != cpu_number())) {
- return (mach_vm_size_t)
- kdp_x86_xcpu_invoke(lcpu, (kdp_x86_xcpu_func_t)kdp_machine_phys_read, rq, dst);
- }
+ if ((lcpu != KDP_CURRENT_LCPU) && (lcpu != cpu_number())) {
+ return (mach_vm_size_t)
+ kdp_x86_xcpu_invoke(lcpu, (kdp_x86_xcpu_func_t)kdp_machine_phys_read, rq, dst);
+ }
#ifdef KDP_VM_READ_DEBUG
printf("kdp_phys_read: src %llx dst %p len %llx\n", src, (void *)dst, len);
cur_phys_src = (addr64_t)src;
while (resid != 0) {
-
- if(!(cur_phys_dst = kdp_vtophys(kernel_pmap, cur_virt_dst)))
+ if (!(cur_phys_dst = kdp_vtophys(kernel_pmap, cur_virt_dst))) {
goto exit;
+ }
/* Get length left on page */
cnt_src = PAGE_SIZE - (cur_phys_src & PAGE_MASK);
cnt_dst = PAGE_SIZE - (cur_phys_dst & PAGE_MASK);
- if (cnt_src > cnt_dst)
+ if (cnt_src > cnt_dst) {
cnt = cnt_dst;
- else
+ } else {
cnt = cnt_src;
- if (cnt > resid)
+ }
+ if (cnt > resid) {
cnt = resid;
+ }
- /* Do a physical copy; use ml_copy_phys() in the event this is
- * a short read with potential side effects.
- */
+ /* Do a physical copy; use ml_copy_phys() in the event this is
+ * a short read with potential side effects.
+ */
if (EFAULT == ml_copy_phys(cur_phys_src,
- cur_phys_dst,
- (vm_size_t)cnt))
+ cur_phys_dst,
+ (vm_size_t)cnt)) {
goto exit;
+ }
cur_phys_src += cnt;
cur_virt_dst += cnt;
resid -= cnt;
}
exit:
- return (len - resid);
+ return len - resid;
}
/*
- *
+ *
*/
mach_vm_size_t
kdp_machine_vm_write( caddr_t src, mach_vm_address_t dst, mach_vm_size_t len)
-{
+{
addr64_t cur_virt_src, cur_virt_dst;
addr64_t cur_phys_src, cur_phys_dst;
unsigned resid, cnt, cnt_src, cnt_dst;
resid = (unsigned)len;
while (resid != 0) {
- if ((cur_phys_dst = kdp_vtophys(kernel_pmap, cur_virt_dst)) == 0)
+ if ((cur_phys_dst = kdp_vtophys(kernel_pmap, cur_virt_dst)) == 0) {
goto exit;
+ }
- if ((cur_phys_src = kdp_vtophys(kernel_pmap, cur_virt_src)) == 0)
+ if ((cur_phys_src = kdp_vtophys(kernel_pmap, cur_virt_src)) == 0) {
goto exit;
+ }
/* Copy as many bytes as possible without crossing a page */
cnt_src = (unsigned)(PAGE_SIZE - (cur_phys_src & PAGE_MASK));
cnt_dst = (unsigned)(PAGE_SIZE - (cur_phys_dst & PAGE_MASK));
- if (cnt_src > cnt_dst)
+ if (cnt_src > cnt_dst) {
cnt = cnt_dst;
- else
+ } else {
cnt = cnt_src;
- if (cnt > resid)
+ }
+ if (cnt > resid) {
cnt = resid;
+ }
- if (EFAULT == ml_copy_phys(cur_phys_src, cur_phys_dst, cnt))
- goto exit; /* Copy stuff over */
-
- cur_virt_src +=cnt;
- cur_virt_dst +=cnt;
+ if (EFAULT == ml_copy_phys(cur_phys_src, cur_phys_dst, cnt)) {
+ goto exit; /* Copy stuff over */
+ }
+ cur_virt_src += cnt;
+ cur_virt_dst += cnt;
resid -= cnt;
}
exit:
- return (len - resid);
+ return len - resid;
}
/*
- *
+ *
*/
mach_vm_size_t
kdp_machine_phys_write(kdp_writephysmem64_req_t *rq, caddr_t src,
- uint16_t lcpu)
-{
+ uint16_t lcpu)
+{
mach_vm_address_t dst = rq->address;
mach_vm_size_t len = rq->nbytes;
addr64_t cur_virt_src;
addr64_t cur_phys_src, cur_phys_dst;
unsigned resid, cnt, cnt_src, cnt_dst;
- if ((lcpu != KDP_CURRENT_LCPU) && (lcpu != cpu_number())) {
- return (mach_vm_size_t)
- kdp_x86_xcpu_invoke(lcpu, (kdp_x86_xcpu_func_t)kdp_machine_phys_write, rq, src);
- }
+ if ((lcpu != KDP_CURRENT_LCPU) && (lcpu != cpu_number())) {
+ return (mach_vm_size_t)
+ kdp_x86_xcpu_invoke(lcpu, (kdp_x86_xcpu_func_t)kdp_machine_phys_write, rq, src);
+ }
#ifdef KDP_VM_WRITE_DEBUG
printf("kdp_phys_write: src %p dst %llx len %llx - %08X %08X\n", (void *)src, dst, len, ((unsigned int *)src)[0], ((unsigned int *)src)[1]);
resid = (unsigned)len;
while (resid != 0) {
- if ((cur_phys_src = kdp_vtophys(kernel_pmap, cur_virt_src)) == 0)
+ if ((cur_phys_src = kdp_vtophys(kernel_pmap, cur_virt_src)) == 0) {
goto exit;
+ }
/* Copy as many bytes as possible without crossing a page */
cnt_src = (unsigned)(PAGE_SIZE - (cur_phys_src & PAGE_MASK));
cnt_dst = (unsigned)(PAGE_SIZE - (cur_phys_dst & PAGE_MASK));
- if (cnt_src > cnt_dst)
+ if (cnt_src > cnt_dst) {
cnt = cnt_dst;
- else
+ } else {
cnt = cnt_src;
- if (cnt > resid)
+ }
+ if (cnt > resid) {
cnt = resid;
+ }
- if (EFAULT == ml_copy_phys(cur_phys_src, cur_phys_dst, cnt))
- goto exit; /* Copy stuff over */
-
- cur_virt_src +=cnt;
- cur_phys_dst +=cnt;
+ if (EFAULT == ml_copy_phys(cur_phys_src, cur_phys_dst, cnt)) {
+ goto exit; /* Copy stuff over */
+ }
+ cur_virt_src += cnt;
+ cur_phys_dst += cnt;
resid -= cnt;
}
exit:
- return (len - resid);
+ return len - resid;
}
int
if ((lcpu != KDP_CURRENT_LCPU) && (lcpu != cpu_number())) {
return (int) kdp_x86_xcpu_invoke(lcpu, (kdp_x86_xcpu_func_t)kdp_machine_ioport_read, rq, data);
- }
+ }
- switch (size)
- {
+ switch (size) {
case 1:
*((uint8_t *) data) = inb(addr);
break;
return (int) kdp_x86_xcpu_invoke(lcpu, (kdp_x86_xcpu_func_t)kdp_machine_ioport_write, rq, data);
}
- switch (size)
- {
+ switch (size) {
case 1:
outb(addr, *((uint8_t *) data));
break;
*/
void
-kdp_machine_init(void) {
- if (debug_boot_arg == 0)
- return;
-
+kdp_map_debug_pagetable_window(void)
+{
vm_map_entry_t e;
kern_return_t kr;
kr = vm_map_find_space(kernel_map,
- &debugger_window_kva,
- PAGE_SIZE, 0,
- 0,
- VM_MAP_KERNEL_FLAGS_NONE,
- VM_KERN_MEMORY_OSFMK,
- &e);
+ &debugger_window_kva,
+ PAGE_SIZE, 0,
+ 0,
+ VM_MAP_KERNEL_FLAGS_NONE,
+ VM_KERN_MEMORY_OSFMK,
+ &e);
if (kr != KERN_SUCCESS) {
panic("%s: vm_map_find_space failed with %d\n", __FUNCTION__, kr);
}
}
+/* initialize kdp_jtag_coredump with data needed for JTAG coredump extraction */
+void
+kdp_jtag_coredump_init(void)
+{
+ kdp_jtag_coredump.version = (uint64_t) KDP_JTAG_COREDUMP_VERSION_1;
+ kdp_jtag_coredump.kernel_map_start = (uint64_t) kernel_map->min_offset;
+ kdp_jtag_coredump.kernel_map_end = (uint64_t) kernel_map->max_offset;
+ kdp_jtag_coredump.kernel_pmap_pml4 = (uint64_t) kernel_pmap->pm_pml4;
+ kdp_jtag_coredump.pmap_memory_regions = (uint64_t) &pmap_memory_regions;
+ kdp_jtag_coredump.pmap_memory_region_count = (uint64_t) pmap_memory_region_count;
+ kdp_jtag_coredump.pmap_memory_region_t_size = (uint64_t) sizeof(pmap_memory_region_t);
+ kdp_jtag_coredump.physmap_base = (uint64_t) &physmap_base;
+
+ /* update signature last so that JTAG can trust that structure has valid data */
+ kdp_jtag_coredump.signature = (uint64_t) KDP_JTAG_COREDUMP_SIGNATURE;
+}
+
+void
+kdp_machine_init(void)
+{
+ if (debug_boot_arg == 0) {
+ return;
+ }
+ kdp_map_debug_pagetable_window();
+ kdp_jtag_coredump_init();
+}
projects / apple / xnu.git / blobdiff