#define ELF_MACHINE_UNAME "Unknown"
#endif
-static uint16_t cpu_convert_to_target16(uint16_t val, int endian)
+uint16_t cpu_to_dump16(DumpState *s, uint16_t val)
{
- if (endian == ELFDATA2LSB) {
+ if (s->dump_info.d_endian == ELFDATA2LSB) {
val = cpu_to_le16(val);
} else {
val = cpu_to_be16(val);
return val;
}
-static uint32_t cpu_convert_to_target32(uint32_t val, int endian)
+uint32_t cpu_to_dump32(DumpState *s, uint32_t val)
{
- if (endian == ELFDATA2LSB) {
+ if (s->dump_info.d_endian == ELFDATA2LSB) {
val = cpu_to_le32(val);
} else {
val = cpu_to_be32(val);
return val;
}
-static uint64_t cpu_convert_to_target64(uint64_t val, int endian)
+uint64_t cpu_to_dump64(DumpState *s, uint64_t val)
{
- if (endian == ELFDATA2LSB) {
+ if (s->dump_info.d_endian == ELFDATA2LSB) {
val = cpu_to_le64(val);
} else {
val = cpu_to_be64(val);
return val;
}
-typedef struct DumpState {
- GuestPhysBlockList guest_phys_blocks;
- ArchDumpInfo dump_info;
- MemoryMappingList list;
- uint16_t phdr_num;
- uint32_t sh_info;
- bool have_section;
- bool resume;
- ssize_t note_size;
- hwaddr memory_offset;
- int fd;
-
- GuestPhysBlock *next_block;
- ram_addr_t start;
- bool has_filter;
- int64_t begin;
- int64_t length;
-
- uint8_t *note_buf; /* buffer for notes */
- size_t note_buf_offset; /* the writing place in note_buf */
- uint32_t nr_cpus; /* number of guest's cpu */
- uint64_t max_mapnr; /* the biggest guest's phys-mem's number */
- size_t len_dump_bitmap; /* the size of the place used to store
- dump_bitmap in vmcore */
- off_t offset_dump_bitmap; /* offset of dump_bitmap part in vmcore */
- off_t offset_page; /* offset of page part in vmcore */
- size_t num_dumpable; /* number of page that can be dumped */
- uint32_t flag_compress; /* indicate the compression format */
-} DumpState;
-
static int dump_cleanup(DumpState *s)
{
- int ret = 0;
-
guest_phys_blocks_free(&s->guest_phys_blocks);
memory_mapping_list_free(&s->list);
- if (s->fd != -1) {
- close(s->fd);
- }
+ close(s->fd);
if (s->resume) {
vm_start();
}
- return ret;
+ return 0;
}
-static void dump_error(DumpState *s, const char *reason)
+static void dump_error(DumpState *s, const char *reason, Error **errp)
{
dump_cleanup(s);
+ error_setg(errp, "%s", reason);
}
static int fd_write_vmcore(const void *buf, size_t size, void *opaque)
return 0;
}
-static int write_elf64_header(DumpState *s)
+static void write_elf64_header(DumpState *s, Error **errp)
{
Elf64_Ehdr elf_header;
int ret;
- int endian = s->dump_info.d_endian;
memset(&elf_header, 0, sizeof(Elf64_Ehdr));
memcpy(&elf_header, ELFMAG, SELFMAG);
elf_header.e_ident[EI_CLASS] = ELFCLASS64;
elf_header.e_ident[EI_DATA] = s->dump_info.d_endian;
elf_header.e_ident[EI_VERSION] = EV_CURRENT;
- elf_header.e_type = cpu_convert_to_target16(ET_CORE, endian);
- elf_header.e_machine = cpu_convert_to_target16(s->dump_info.d_machine,
- endian);
- elf_header.e_version = cpu_convert_to_target32(EV_CURRENT, endian);
- elf_header.e_ehsize = cpu_convert_to_target16(sizeof(elf_header), endian);
- elf_header.e_phoff = cpu_convert_to_target64(sizeof(Elf64_Ehdr), endian);
- elf_header.e_phentsize = cpu_convert_to_target16(sizeof(Elf64_Phdr),
- endian);
- elf_header.e_phnum = cpu_convert_to_target16(s->phdr_num, endian);
+ elf_header.e_type = cpu_to_dump16(s, ET_CORE);
+ elf_header.e_machine = cpu_to_dump16(s, s->dump_info.d_machine);
+ elf_header.e_version = cpu_to_dump32(s, EV_CURRENT);
+ elf_header.e_ehsize = cpu_to_dump16(s, sizeof(elf_header));
+ elf_header.e_phoff = cpu_to_dump64(s, sizeof(Elf64_Ehdr));
+ elf_header.e_phentsize = cpu_to_dump16(s, sizeof(Elf64_Phdr));
+ elf_header.e_phnum = cpu_to_dump16(s, s->phdr_num);
if (s->have_section) {
uint64_t shoff = sizeof(Elf64_Ehdr) + sizeof(Elf64_Phdr) * s->sh_info;
- elf_header.e_shoff = cpu_convert_to_target64(shoff, endian);
- elf_header.e_shentsize = cpu_convert_to_target16(sizeof(Elf64_Shdr),
- endian);
- elf_header.e_shnum = cpu_convert_to_target16(1, endian);
+ elf_header.e_shoff = cpu_to_dump64(s, shoff);
+ elf_header.e_shentsize = cpu_to_dump16(s, sizeof(Elf64_Shdr));
+ elf_header.e_shnum = cpu_to_dump16(s, 1);
}
ret = fd_write_vmcore(&elf_header, sizeof(elf_header), s);
if (ret < 0) {
- dump_error(s, "dump: failed to write elf header.\n");
- return -1;
+ dump_error(s, "dump: failed to write elf header", errp);
}
-
- return 0;
}
-static int write_elf32_header(DumpState *s)
+static void write_elf32_header(DumpState *s, Error **errp)
{
Elf32_Ehdr elf_header;
int ret;
- int endian = s->dump_info.d_endian;
memset(&elf_header, 0, sizeof(Elf32_Ehdr));
memcpy(&elf_header, ELFMAG, SELFMAG);
elf_header.e_ident[EI_CLASS] = ELFCLASS32;
- elf_header.e_ident[EI_DATA] = endian;
+ elf_header.e_ident[EI_DATA] = s->dump_info.d_endian;
elf_header.e_ident[EI_VERSION] = EV_CURRENT;
- elf_header.e_type = cpu_convert_to_target16(ET_CORE, endian);
- elf_header.e_machine = cpu_convert_to_target16(s->dump_info.d_machine,
- endian);
- elf_header.e_version = cpu_convert_to_target32(EV_CURRENT, endian);
- elf_header.e_ehsize = cpu_convert_to_target16(sizeof(elf_header), endian);
- elf_header.e_phoff = cpu_convert_to_target32(sizeof(Elf32_Ehdr), endian);
- elf_header.e_phentsize = cpu_convert_to_target16(sizeof(Elf32_Phdr),
- endian);
- elf_header.e_phnum = cpu_convert_to_target16(s->phdr_num, endian);
+ elf_header.e_type = cpu_to_dump16(s, ET_CORE);
+ elf_header.e_machine = cpu_to_dump16(s, s->dump_info.d_machine);
+ elf_header.e_version = cpu_to_dump32(s, EV_CURRENT);
+ elf_header.e_ehsize = cpu_to_dump16(s, sizeof(elf_header));
+ elf_header.e_phoff = cpu_to_dump32(s, sizeof(Elf32_Ehdr));
+ elf_header.e_phentsize = cpu_to_dump16(s, sizeof(Elf32_Phdr));
+ elf_header.e_phnum = cpu_to_dump16(s, s->phdr_num);
if (s->have_section) {
uint32_t shoff = sizeof(Elf32_Ehdr) + sizeof(Elf32_Phdr) * s->sh_info;
- elf_header.e_shoff = cpu_convert_to_target32(shoff, endian);
- elf_header.e_shentsize = cpu_convert_to_target16(sizeof(Elf32_Shdr),
- endian);
- elf_header.e_shnum = cpu_convert_to_target16(1, endian);
+ elf_header.e_shoff = cpu_to_dump32(s, shoff);
+ elf_header.e_shentsize = cpu_to_dump16(s, sizeof(Elf32_Shdr));
+ elf_header.e_shnum = cpu_to_dump16(s, 1);
}
ret = fd_write_vmcore(&elf_header, sizeof(elf_header), s);
if (ret < 0) {
- dump_error(s, "dump: failed to write elf header.\n");
- return -1;
+ dump_error(s, "dump: failed to write elf header", errp);
}
-
- return 0;
}
-static int write_elf64_load(DumpState *s, MemoryMapping *memory_mapping,
- int phdr_index, hwaddr offset,
- hwaddr filesz)
+static void write_elf64_load(DumpState *s, MemoryMapping *memory_mapping,
+ int phdr_index, hwaddr offset,
+ hwaddr filesz, Error **errp)
{
Elf64_Phdr phdr;
int ret;
- int endian = s->dump_info.d_endian;
memset(&phdr, 0, sizeof(Elf64_Phdr));
- phdr.p_type = cpu_convert_to_target32(PT_LOAD, endian);
- phdr.p_offset = cpu_convert_to_target64(offset, endian);
- phdr.p_paddr = cpu_convert_to_target64(memory_mapping->phys_addr, endian);
- phdr.p_filesz = cpu_convert_to_target64(filesz, endian);
- phdr.p_memsz = cpu_convert_to_target64(memory_mapping->length, endian);
- phdr.p_vaddr = cpu_convert_to_target64(memory_mapping->virt_addr, endian);
+ phdr.p_type = cpu_to_dump32(s, PT_LOAD);
+ phdr.p_offset = cpu_to_dump64(s, offset);
+ phdr.p_paddr = cpu_to_dump64(s, memory_mapping->phys_addr);
+ phdr.p_filesz = cpu_to_dump64(s, filesz);
+ phdr.p_memsz = cpu_to_dump64(s, memory_mapping->length);
+ phdr.p_vaddr = cpu_to_dump64(s, memory_mapping->virt_addr);
assert(memory_mapping->length >= filesz);
ret = fd_write_vmcore(&phdr, sizeof(Elf64_Phdr), s);
if (ret < 0) {
- dump_error(s, "dump: failed to write program header table.\n");
- return -1;
+ dump_error(s, "dump: failed to write program header table", errp);
}
-
- return 0;
}
-static int write_elf32_load(DumpState *s, MemoryMapping *memory_mapping,
- int phdr_index, hwaddr offset,
- hwaddr filesz)
+static void write_elf32_load(DumpState *s, MemoryMapping *memory_mapping,
+ int phdr_index, hwaddr offset,
+ hwaddr filesz, Error **errp)
{
Elf32_Phdr phdr;
int ret;
- int endian = s->dump_info.d_endian;
memset(&phdr, 0, sizeof(Elf32_Phdr));
- phdr.p_type = cpu_convert_to_target32(PT_LOAD, endian);
- phdr.p_offset = cpu_convert_to_target32(offset, endian);
- phdr.p_paddr = cpu_convert_to_target32(memory_mapping->phys_addr, endian);
- phdr.p_filesz = cpu_convert_to_target32(filesz, endian);
- phdr.p_memsz = cpu_convert_to_target32(memory_mapping->length, endian);
- phdr.p_vaddr = cpu_convert_to_target32(memory_mapping->virt_addr, endian);
+ phdr.p_type = cpu_to_dump32(s, PT_LOAD);
+ phdr.p_offset = cpu_to_dump32(s, offset);
+ phdr.p_paddr = cpu_to_dump32(s, memory_mapping->phys_addr);
+ phdr.p_filesz = cpu_to_dump32(s, filesz);
+ phdr.p_memsz = cpu_to_dump32(s, memory_mapping->length);
+ phdr.p_vaddr = cpu_to_dump32(s, memory_mapping->virt_addr);
assert(memory_mapping->length >= filesz);
ret = fd_write_vmcore(&phdr, sizeof(Elf32_Phdr), s);
if (ret < 0) {
- dump_error(s, "dump: failed to write program header table.\n");
- return -1;
+ dump_error(s, "dump: failed to write program header table", errp);
}
-
- return 0;
}
-static int write_elf64_note(DumpState *s)
+static void write_elf64_note(DumpState *s, Error **errp)
{
Elf64_Phdr phdr;
- int endian = s->dump_info.d_endian;
hwaddr begin = s->memory_offset - s->note_size;
int ret;
memset(&phdr, 0, sizeof(Elf64_Phdr));
- phdr.p_type = cpu_convert_to_target32(PT_NOTE, endian);
- phdr.p_offset = cpu_convert_to_target64(begin, endian);
+ phdr.p_type = cpu_to_dump32(s, PT_NOTE);
+ phdr.p_offset = cpu_to_dump64(s, begin);
phdr.p_paddr = 0;
- phdr.p_filesz = cpu_convert_to_target64(s->note_size, endian);
- phdr.p_memsz = cpu_convert_to_target64(s->note_size, endian);
+ phdr.p_filesz = cpu_to_dump64(s, s->note_size);
+ phdr.p_memsz = cpu_to_dump64(s, s->note_size);
phdr.p_vaddr = 0;
ret = fd_write_vmcore(&phdr, sizeof(Elf64_Phdr), s);
if (ret < 0) {
- dump_error(s, "dump: failed to write program header table.\n");
- return -1;
+ dump_error(s, "dump: failed to write program header table", errp);
}
-
- return 0;
}
static inline int cpu_index(CPUState *cpu)
return cpu->cpu_index + 1;
}
-static int write_elf64_notes(WriteCoreDumpFunction f, DumpState *s)
+static void write_elf64_notes(WriteCoreDumpFunction f, DumpState *s,
+ Error **errp)
{
CPUState *cpu;
int ret;
id = cpu_index(cpu);
ret = cpu_write_elf64_note(f, cpu, id, s);
if (ret < 0) {
- dump_error(s, "dump: failed to write elf notes.\n");
- return -1;
+ dump_error(s, "dump: failed to write elf notes", errp);
+ return;
}
}
CPU_FOREACH(cpu) {
ret = cpu_write_elf64_qemunote(f, cpu, s);
if (ret < 0) {
- dump_error(s, "dump: failed to write CPU status.\n");
- return -1;
+ dump_error(s, "dump: failed to write CPU status", errp);
+ return;
}
}
-
- return 0;
}
-static int write_elf32_note(DumpState *s)
+static void write_elf32_note(DumpState *s, Error **errp)
{
hwaddr begin = s->memory_offset - s->note_size;
Elf32_Phdr phdr;
- int endian = s->dump_info.d_endian;
int ret;
memset(&phdr, 0, sizeof(Elf32_Phdr));
- phdr.p_type = cpu_convert_to_target32(PT_NOTE, endian);
- phdr.p_offset = cpu_convert_to_target32(begin, endian);
+ phdr.p_type = cpu_to_dump32(s, PT_NOTE);
+ phdr.p_offset = cpu_to_dump32(s, begin);
phdr.p_paddr = 0;
- phdr.p_filesz = cpu_convert_to_target32(s->note_size, endian);
- phdr.p_memsz = cpu_convert_to_target32(s->note_size, endian);
+ phdr.p_filesz = cpu_to_dump32(s, s->note_size);
+ phdr.p_memsz = cpu_to_dump32(s, s->note_size);
phdr.p_vaddr = 0;
ret = fd_write_vmcore(&phdr, sizeof(Elf32_Phdr), s);
if (ret < 0) {
- dump_error(s, "dump: failed to write program header table.\n");
- return -1;
+ dump_error(s, "dump: failed to write program header table", errp);
}
-
- return 0;
}
-static int write_elf32_notes(WriteCoreDumpFunction f, DumpState *s)
+static void write_elf32_notes(WriteCoreDumpFunction f, DumpState *s,
+ Error **errp)
{
CPUState *cpu;
int ret;
id = cpu_index(cpu);
ret = cpu_write_elf32_note(f, cpu, id, s);
if (ret < 0) {
- dump_error(s, "dump: failed to write elf notes.\n");
- return -1;
+ dump_error(s, "dump: failed to write elf notes", errp);
+ return;
}
}
CPU_FOREACH(cpu) {
ret = cpu_write_elf32_qemunote(f, cpu, s);
if (ret < 0) {
- dump_error(s, "dump: failed to write CPU status.\n");
- return -1;
+ dump_error(s, "dump: failed to write CPU status", errp);
+ return;
}
}
-
- return 0;
}
-static int write_elf_section(DumpState *s, int type)
+static void write_elf_section(DumpState *s, int type, Error **errp)
{
Elf32_Shdr shdr32;
Elf64_Shdr shdr64;
- int endian = s->dump_info.d_endian;
int shdr_size;
void *shdr;
int ret;
if (type == 0) {
shdr_size = sizeof(Elf32_Shdr);
memset(&shdr32, 0, shdr_size);
- shdr32.sh_info = cpu_convert_to_target32(s->sh_info, endian);
+ shdr32.sh_info = cpu_to_dump32(s, s->sh_info);
shdr = &shdr32;
} else {
shdr_size = sizeof(Elf64_Shdr);
memset(&shdr64, 0, shdr_size);
- shdr64.sh_info = cpu_convert_to_target32(s->sh_info, endian);
+ shdr64.sh_info = cpu_to_dump32(s, s->sh_info);
shdr = &shdr64;
}
ret = fd_write_vmcore(&shdr, shdr_size, s);
if (ret < 0) {
- dump_error(s, "dump: failed to write section header table.\n");
- return -1;
+ dump_error(s, "dump: failed to write section header table", errp);
}
-
- return 0;
}
-static int write_data(DumpState *s, void *buf, int length)
+static void write_data(DumpState *s, void *buf, int length, Error **errp)
{
int ret;
ret = fd_write_vmcore(buf, length, s);
if (ret < 0) {
- dump_error(s, "dump: failed to save memory.\n");
- return -1;
+ dump_error(s, "dump: failed to save memory", errp);
}
-
- return 0;
}
-/* write the memroy to vmcore. 1 page per I/O. */
-static int write_memory(DumpState *s, GuestPhysBlock *block, ram_addr_t start,
- int64_t size)
+/* write the memory to vmcore. 1 page per I/O. */
+static void write_memory(DumpState *s, GuestPhysBlock *block, ram_addr_t start,
+ int64_t size, Error **errp)
{
int64_t i;
- int ret;
+ Error *local_err = NULL;
for (i = 0; i < size / TARGET_PAGE_SIZE; i++) {
- ret = write_data(s, block->host_addr + start + i * TARGET_PAGE_SIZE,
- TARGET_PAGE_SIZE);
- if (ret < 0) {
- return ret;
+ write_data(s, block->host_addr + start + i * TARGET_PAGE_SIZE,
+ TARGET_PAGE_SIZE, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
+ return;
}
}
if ((size % TARGET_PAGE_SIZE) != 0) {
- ret = write_data(s, block->host_addr + start + i * TARGET_PAGE_SIZE,
- size % TARGET_PAGE_SIZE);
- if (ret < 0) {
- return ret;
+ write_data(s, block->host_addr + start + i * TARGET_PAGE_SIZE,
+ size % TARGET_PAGE_SIZE, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
+ return;
}
}
-
- return 0;
}
/* get the memory's offset and size in the vmcore */
}
}
-static int write_elf_loads(DumpState *s)
+static void write_elf_loads(DumpState *s, Error **errp)
{
hwaddr offset, filesz;
MemoryMapping *memory_mapping;
uint32_t phdr_index = 1;
- int ret;
uint32_t max_index;
+ Error *local_err = NULL;
if (s->have_section) {
max_index = s->sh_info;
memory_mapping->length,
s, &offset, &filesz);
if (s->dump_info.d_class == ELFCLASS64) {
- ret = write_elf64_load(s, memory_mapping, phdr_index++, offset,
- filesz);
+ write_elf64_load(s, memory_mapping, phdr_index++, offset,
+ filesz, &local_err);
} else {
- ret = write_elf32_load(s, memory_mapping, phdr_index++, offset,
- filesz);
+ write_elf32_load(s, memory_mapping, phdr_index++, offset,
+ filesz, &local_err);
}
- if (ret < 0) {
- return -1;
+ if (local_err) {
+ error_propagate(errp, local_err);
+ return;
}
if (phdr_index >= max_index) {
break;
}
}
-
- return 0;
}
/* write elf header, PT_NOTE and elf note to vmcore. */
-static int dump_begin(DumpState *s)
+static void dump_begin(DumpState *s, Error **errp)
{
- int ret;
+ Error *local_err = NULL;
/*
* the vmcore's format is:
/* write elf header to vmcore */
if (s->dump_info.d_class == ELFCLASS64) {
- ret = write_elf64_header(s);
+ write_elf64_header(s, &local_err);
} else {
- ret = write_elf32_header(s);
+ write_elf32_header(s, &local_err);
}
- if (ret < 0) {
- return -1;
+ if (local_err) {
+ error_propagate(errp, local_err);
+ return;
}
if (s->dump_info.d_class == ELFCLASS64) {
/* write PT_NOTE to vmcore */
- if (write_elf64_note(s) < 0) {
- return -1;
+ write_elf64_note(s, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
+ return;
}
/* write all PT_LOAD to vmcore */
- if (write_elf_loads(s) < 0) {
- return -1;
+ write_elf_loads(s, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
+ return;
}
/* write section to vmcore */
if (s->have_section) {
- if (write_elf_section(s, 1) < 0) {
- return -1;
+ write_elf_section(s, 1, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
+ return;
}
}
/* write notes to vmcore */
- if (write_elf64_notes(fd_write_vmcore, s) < 0) {
- return -1;
+ write_elf64_notes(fd_write_vmcore, s, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
+ return;
}
-
} else {
/* write PT_NOTE to vmcore */
- if (write_elf32_note(s) < 0) {
- return -1;
+ write_elf32_note(s, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
+ return;
}
/* write all PT_LOAD to vmcore */
- if (write_elf_loads(s) < 0) {
- return -1;
+ write_elf_loads(s, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
+ return;
}
/* write section to vmcore */
if (s->have_section) {
- if (write_elf_section(s, 0) < 0) {
- return -1;
+ write_elf_section(s, 0, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
+ return;
}
}
/* write notes to vmcore */
- if (write_elf32_notes(fd_write_vmcore, s) < 0) {
- return -1;
+ write_elf32_notes(fd_write_vmcore, s, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
+ return;
}
}
-
- return 0;
}
-/* write PT_LOAD to vmcore */
-static int dump_completed(DumpState *s)
+static void dump_completed(DumpState *s)
{
dump_cleanup(s);
- return 0;
}
static int get_next_block(DumpState *s, GuestPhysBlock *block)
}
/* write all memory to vmcore */
-static int dump_iterate(DumpState *s)
+static void dump_iterate(DumpState *s, Error **errp)
{
GuestPhysBlock *block;
int64_t size;
- int ret;
+ Error *local_err = NULL;
- while (1) {
+ do {
block = s->next_block;
size = block->target_end - block->target_start;
size -= block->target_end - (s->begin + s->length);
}
}
- ret = write_memory(s, block, s->start, size);
- if (ret == -1) {
- return ret;
+ write_memory(s, block, s->start, size, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
+ return;
}
- ret = get_next_block(s, block);
- if (ret == 1) {
- dump_completed(s);
- return 0;
- }
- }
+ } while (!get_next_block(s, block));
+
+ dump_completed(s);
}
-static int create_vmcore(DumpState *s)
+static void create_vmcore(DumpState *s, Error **errp)
{
- int ret;
+ Error *local_err = NULL;
- ret = dump_begin(s);
- if (ret < 0) {
- return -1;
- }
-
- ret = dump_iterate(s);
- if (ret < 0) {
- return -1;
+ dump_begin(s, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
+ return;
}
- return 0;
+ dump_iterate(s, errp);
}
static int write_start_flat_header(int fd)
}
/* write common header, sub header and elf note to vmcore */
-static int create_header32(DumpState *s)
+static void create_header32(DumpState *s, Error **errp)
{
- int ret = 0;
DiskDumpHeader32 *dh = NULL;
KdumpSubHeader32 *kh = NULL;
size_t size;
- int endian = s->dump_info.d_endian;
uint32_t block_size;
uint32_t sub_hdr_size;
uint32_t bitmap_blocks;
uint32_t status = 0;
uint64_t offset_note;
+ Error *local_err = NULL;
/* write common header, the version of kdump-compressed format is 6th */
size = sizeof(DiskDumpHeader32);
dh = g_malloc0(size);
strncpy(dh->signature, KDUMP_SIGNATURE, strlen(KDUMP_SIGNATURE));
- dh->header_version = cpu_convert_to_target32(6, endian);
+ dh->header_version = cpu_to_dump32(s, 6);
block_size = TARGET_PAGE_SIZE;
- dh->block_size = cpu_convert_to_target32(block_size, endian);
+ dh->block_size = cpu_to_dump32(s, block_size);
sub_hdr_size = sizeof(struct KdumpSubHeader32) + s->note_size;
sub_hdr_size = DIV_ROUND_UP(sub_hdr_size, block_size);
- dh->sub_hdr_size = cpu_convert_to_target32(sub_hdr_size, endian);
+ dh->sub_hdr_size = cpu_to_dump32(s, sub_hdr_size);
/* dh->max_mapnr may be truncated, full 64bit is in kh.max_mapnr_64 */
- dh->max_mapnr = cpu_convert_to_target32(MIN(s->max_mapnr, UINT_MAX),
- endian);
- dh->nr_cpus = cpu_convert_to_target32(s->nr_cpus, endian);
+ dh->max_mapnr = cpu_to_dump32(s, MIN(s->max_mapnr, UINT_MAX));
+ dh->nr_cpus = cpu_to_dump32(s, s->nr_cpus);
bitmap_blocks = DIV_ROUND_UP(s->len_dump_bitmap, block_size) * 2;
- dh->bitmap_blocks = cpu_convert_to_target32(bitmap_blocks, endian);
+ dh->bitmap_blocks = cpu_to_dump32(s, bitmap_blocks);
strncpy(dh->utsname.machine, ELF_MACHINE_UNAME, sizeof(dh->utsname.machine));
if (s->flag_compress & DUMP_DH_COMPRESSED_ZLIB) {
status |= DUMP_DH_COMPRESSED_SNAPPY;
}
#endif
- dh->status = cpu_convert_to_target32(status, endian);
+ dh->status = cpu_to_dump32(s, status);
if (write_buffer(s->fd, 0, dh, size) < 0) {
- dump_error(s, "dump: failed to write disk dump header.\n");
- ret = -1;
+ dump_error(s, "dump: failed to write disk dump header", errp);
goto out;
}
kh = g_malloc0(size);
/* 64bit max_mapnr_64 */
- kh->max_mapnr_64 = cpu_convert_to_target64(s->max_mapnr, endian);
- kh->phys_base = cpu_convert_to_target32(PHYS_BASE, endian);
- kh->dump_level = cpu_convert_to_target32(DUMP_LEVEL, endian);
+ kh->max_mapnr_64 = cpu_to_dump64(s, s->max_mapnr);
+ kh->phys_base = cpu_to_dump32(s, PHYS_BASE);
+ kh->dump_level = cpu_to_dump32(s, DUMP_LEVEL);
offset_note = DISKDUMP_HEADER_BLOCKS * block_size + size;
- kh->offset_note = cpu_convert_to_target64(offset_note, endian);
- kh->note_size = cpu_convert_to_target32(s->note_size, endian);
+ kh->offset_note = cpu_to_dump64(s, offset_note);
+ kh->note_size = cpu_to_dump32(s, s->note_size);
if (write_buffer(s->fd, DISKDUMP_HEADER_BLOCKS *
block_size, kh, size) < 0) {
- dump_error(s, "dump: failed to write kdump sub header.\n");
- ret = -1;
+ dump_error(s, "dump: failed to write kdump sub header", errp);
goto out;
}
s->note_buf_offset = 0;
/* use s->note_buf to store notes temporarily */
- if (write_elf32_notes(buf_write_note, s) < 0) {
- ret = -1;
+ write_elf32_notes(buf_write_note, s, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
goto out;
}
-
if (write_buffer(s->fd, offset_note, s->note_buf,
s->note_size) < 0) {
- dump_error(s, "dump: failed to write notes");
- ret = -1;
+ dump_error(s, "dump: failed to write notes", errp);
goto out;
}
g_free(dh);
g_free(kh);
g_free(s->note_buf);
-
- return ret;
}
/* write common header, sub header and elf note to vmcore */
-static int create_header64(DumpState *s)
+static void create_header64(DumpState *s, Error **errp)
{
- int ret = 0;
DiskDumpHeader64 *dh = NULL;
KdumpSubHeader64 *kh = NULL;
size_t size;
- int endian = s->dump_info.d_endian;
uint32_t block_size;
uint32_t sub_hdr_size;
uint32_t bitmap_blocks;
uint32_t status = 0;
uint64_t offset_note;
+ Error *local_err = NULL;
/* write common header, the version of kdump-compressed format is 6th */
size = sizeof(DiskDumpHeader64);
dh = g_malloc0(size);
strncpy(dh->signature, KDUMP_SIGNATURE, strlen(KDUMP_SIGNATURE));
- dh->header_version = cpu_convert_to_target32(6, endian);
+ dh->header_version = cpu_to_dump32(s, 6);
block_size = TARGET_PAGE_SIZE;
- dh->block_size = cpu_convert_to_target32(block_size, endian);
+ dh->block_size = cpu_to_dump32(s, block_size);
sub_hdr_size = sizeof(struct KdumpSubHeader64) + s->note_size;
sub_hdr_size = DIV_ROUND_UP(sub_hdr_size, block_size);
- dh->sub_hdr_size = cpu_convert_to_target32(sub_hdr_size, endian);
+ dh->sub_hdr_size = cpu_to_dump32(s, sub_hdr_size);
/* dh->max_mapnr may be truncated, full 64bit is in kh.max_mapnr_64 */
- dh->max_mapnr = cpu_convert_to_target32(MIN(s->max_mapnr, UINT_MAX),
- endian);
- dh->nr_cpus = cpu_convert_to_target32(s->nr_cpus, endian);
+ dh->max_mapnr = cpu_to_dump32(s, MIN(s->max_mapnr, UINT_MAX));
+ dh->nr_cpus = cpu_to_dump32(s, s->nr_cpus);
bitmap_blocks = DIV_ROUND_UP(s->len_dump_bitmap, block_size) * 2;
- dh->bitmap_blocks = cpu_convert_to_target32(bitmap_blocks, endian);
+ dh->bitmap_blocks = cpu_to_dump32(s, bitmap_blocks);
strncpy(dh->utsname.machine, ELF_MACHINE_UNAME, sizeof(dh->utsname.machine));
if (s->flag_compress & DUMP_DH_COMPRESSED_ZLIB) {
status |= DUMP_DH_COMPRESSED_SNAPPY;
}
#endif
- dh->status = cpu_convert_to_target32(status, endian);
+ dh->status = cpu_to_dump32(s, status);
if (write_buffer(s->fd, 0, dh, size) < 0) {
- dump_error(s, "dump: failed to write disk dump header.\n");
- ret = -1;
+ dump_error(s, "dump: failed to write disk dump header", errp);
goto out;
}
kh = g_malloc0(size);
/* 64bit max_mapnr_64 */
- kh->max_mapnr_64 = cpu_convert_to_target64(s->max_mapnr, endian);
- kh->phys_base = cpu_convert_to_target64(PHYS_BASE, endian);
- kh->dump_level = cpu_convert_to_target32(DUMP_LEVEL, endian);
+ kh->max_mapnr_64 = cpu_to_dump64(s, s->max_mapnr);
+ kh->phys_base = cpu_to_dump64(s, PHYS_BASE);
+ kh->dump_level = cpu_to_dump32(s, DUMP_LEVEL);
offset_note = DISKDUMP_HEADER_BLOCKS * block_size + size;
- kh->offset_note = cpu_convert_to_target64(offset_note, endian);
- kh->note_size = cpu_convert_to_target64(s->note_size, endian);
+ kh->offset_note = cpu_to_dump64(s, offset_note);
+ kh->note_size = cpu_to_dump64(s, s->note_size);
if (write_buffer(s->fd, DISKDUMP_HEADER_BLOCKS *
block_size, kh, size) < 0) {
- dump_error(s, "dump: failed to write kdump sub header.\n");
- ret = -1;
+ dump_error(s, "dump: failed to write kdump sub header", errp);
goto out;
}
s->note_buf_offset = 0;
/* use s->note_buf to store notes temporarily */
- if (write_elf64_notes(buf_write_note, s) < 0) {
- ret = -1;
+ write_elf64_notes(buf_write_note, s, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
goto out;
}
if (write_buffer(s->fd, offset_note, s->note_buf,
s->note_size) < 0) {
- dump_error(s, "dump: failed to write notes");
- ret = -1;
+ dump_error(s, "dump: failed to write notes", errp);
goto out;
}
g_free(dh);
g_free(kh);
g_free(s->note_buf);
-
- return ret;
}
-static int write_dump_header(DumpState *s)
+static void write_dump_header(DumpState *s, Error **errp)
{
+ Error *local_err = NULL;
+
if (s->dump_info.d_class == ELFCLASS32) {
- return create_header32(s);
+ create_header32(s, &local_err);
} else {
- return create_header64(s);
+ create_header64(s, &local_err);
+ }
+ if (local_err) {
+ error_propagate(errp, local_err);
}
}
return true;
}
-static int write_dump_bitmap(DumpState *s)
+static void write_dump_bitmap(DumpState *s, Error **errp)
{
int ret = 0;
uint64_t last_pfn, pfn;
while (get_next_page(&block_iter, &pfn, NULL, s)) {
ret = set_dump_bitmap(last_pfn, pfn, true, dump_bitmap_buf, s);
if (ret < 0) {
- dump_error(s, "dump: failed to set dump_bitmap.\n");
- ret = -1;
+ dump_error(s, "dump: failed to set dump_bitmap", errp);
goto out;
}
ret = set_dump_bitmap(last_pfn, last_pfn + PFN_BUFBITMAP, false,
dump_bitmap_buf, s);
if (ret < 0) {
- dump_error(s, "dump: failed to sync dump_bitmap.\n");
- ret = -1;
+ dump_error(s, "dump: failed to sync dump_bitmap", errp);
goto out;
}
}
out:
g_free(dump_bitmap_buf);
-
- return ret;
}
static void prepare_data_cache(DataCache *data_cache, DumpState *s,
return buffer_is_zero(buf, page_size);
}
-static int write_dump_pages(DumpState *s)
+static void write_dump_pages(DumpState *s, Error **errp)
{
int ret = 0;
DataCache page_desc, page_data;
off_t offset_desc, offset_data;
PageDescriptor pd, pd_zero;
uint8_t *buf;
- int endian = s->dump_info.d_endian;
GuestPhysBlock *block_iter = NULL;
uint64_t pfn_iter;
* init zero page's page_desc and page_data, because every zero page
* uses the same page_data
*/
- pd_zero.size = cpu_convert_to_target32(TARGET_PAGE_SIZE, endian);
- pd_zero.flags = cpu_convert_to_target32(0, endian);
- pd_zero.offset = cpu_convert_to_target64(offset_data, endian);
- pd_zero.page_flags = cpu_convert_to_target64(0, endian);
+ pd_zero.size = cpu_to_dump32(s, TARGET_PAGE_SIZE);
+ pd_zero.flags = cpu_to_dump32(s, 0);
+ pd_zero.offset = cpu_to_dump64(s, offset_data);
+ pd_zero.page_flags = cpu_to_dump64(s, 0);
buf = g_malloc0(TARGET_PAGE_SIZE);
ret = write_cache(&page_data, buf, TARGET_PAGE_SIZE, false);
g_free(buf);
if (ret < 0) {
- dump_error(s, "dump: failed to write page data(zero page).\n");
+ dump_error(s, "dump: failed to write page data (zero page)", errp);
goto out;
}
ret = write_cache(&page_desc, &pd_zero, sizeof(PageDescriptor),
false);
if (ret < 0) {
- dump_error(s, "dump: failed to write page desc.\n");
+ dump_error(s, "dump: failed to write page desc", errp);
goto out;
}
} else {
*/
size_out = len_buf_out;
if ((s->flag_compress & DUMP_DH_COMPRESSED_ZLIB) &&
- (compress2(buf_out, (uLongf *)&size_out, buf,
- TARGET_PAGE_SIZE, Z_BEST_SPEED) == Z_OK) &&
- (size_out < TARGET_PAGE_SIZE)) {
- pd.flags = cpu_convert_to_target32(DUMP_DH_COMPRESSED_ZLIB,
- endian);
- pd.size = cpu_convert_to_target32(size_out, endian);
+ (compress2(buf_out, (uLongf *)&size_out, buf,
+ TARGET_PAGE_SIZE, Z_BEST_SPEED) == Z_OK) &&
+ (size_out < TARGET_PAGE_SIZE)) {
+ pd.flags = cpu_to_dump32(s, DUMP_DH_COMPRESSED_ZLIB);
+ pd.size = cpu_to_dump32(s, size_out);
ret = write_cache(&page_data, buf_out, size_out, false);
if (ret < 0) {
- dump_error(s, "dump: failed to write page data.\n");
+ dump_error(s, "dump: failed to write page data", errp);
goto out;
}
#ifdef CONFIG_LZO
(lzo1x_1_compress(buf, TARGET_PAGE_SIZE, buf_out,
(lzo_uint *)&size_out, wrkmem) == LZO_E_OK) &&
(size_out < TARGET_PAGE_SIZE)) {
- pd.flags = cpu_convert_to_target32(DUMP_DH_COMPRESSED_LZO,
- endian);
- pd.size = cpu_convert_to_target32(size_out, endian);
+ pd.flags = cpu_to_dump32(s, DUMP_DH_COMPRESSED_LZO);
+ pd.size = cpu_to_dump32(s, size_out);
ret = write_cache(&page_data, buf_out, size_out, false);
if (ret < 0) {
- dump_error(s, "dump: failed to write page data.\n");
+ dump_error(s, "dump: failed to write page data", errp);
goto out;
}
#endif
(snappy_compress((char *)buf, TARGET_PAGE_SIZE,
(char *)buf_out, &size_out) == SNAPPY_OK) &&
(size_out < TARGET_PAGE_SIZE)) {
- pd.flags = cpu_convert_to_target32(
- DUMP_DH_COMPRESSED_SNAPPY, endian);
- pd.size = cpu_convert_to_target32(size_out, endian);
+ pd.flags = cpu_to_dump32(s, DUMP_DH_COMPRESSED_SNAPPY);
+ pd.size = cpu_to_dump32(s, size_out);
ret = write_cache(&page_data, buf_out, size_out, false);
if (ret < 0) {
- dump_error(s, "dump: failed to write page data.\n");
+ dump_error(s, "dump: failed to write page data", errp);
goto out;
}
#endif
* fall back to save in plaintext, size_out should be
* assigned TARGET_PAGE_SIZE
*/
- pd.flags = cpu_convert_to_target32(0, endian);
+ pd.flags = cpu_to_dump32(s, 0);
size_out = TARGET_PAGE_SIZE;
- pd.size = cpu_convert_to_target32(size_out, endian);
+ pd.size = cpu_to_dump32(s, size_out);
ret = write_cache(&page_data, buf, TARGET_PAGE_SIZE, false);
if (ret < 0) {
- dump_error(s, "dump: failed to write page data.\n");
+ dump_error(s, "dump: failed to write page data", errp);
goto out;
}
}
/* get and write page desc here */
- pd.page_flags = cpu_convert_to_target64(0, endian);
- pd.offset = cpu_convert_to_target64(offset_data, endian);
+ pd.page_flags = cpu_to_dump64(s, 0);
+ pd.offset = cpu_to_dump64(s, offset_data);
offset_data += size_out;
ret = write_cache(&page_desc, &pd, sizeof(PageDescriptor), false);
if (ret < 0) {
- dump_error(s, "dump: failed to write page desc.\n");
+ dump_error(s, "dump: failed to write page desc", errp);
goto out;
}
}
ret = write_cache(&page_desc, NULL, 0, true);
if (ret < 0) {
- dump_error(s, "dump: failed to sync cache for page_desc.\n");
+ dump_error(s, "dump: failed to sync cache for page_desc", errp);
goto out;
}
ret = write_cache(&page_data, NULL, 0, true);
if (ret < 0) {
- dump_error(s, "dump: failed to sync cache for page_data.\n");
+ dump_error(s, "dump: failed to sync cache for page_data", errp);
goto out;
}
#endif
g_free(buf_out);
-
- return ret;
}
-static int create_kdump_vmcore(DumpState *s)
+static void create_kdump_vmcore(DumpState *s, Error **errp)
{
int ret;
+ Error *local_err = NULL;
/*
* the kdump-compressed format is:
ret = write_start_flat_header(s->fd);
if (ret < 0) {
- dump_error(s, "dump: failed to write start flat header.\n");
- return -1;
+ dump_error(s, "dump: failed to write start flat header", errp);
+ return;
}
- ret = write_dump_header(s);
- if (ret < 0) {
- return -1;
+ write_dump_header(s, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
+ return;
}
- ret = write_dump_bitmap(s);
- if (ret < 0) {
- return -1;
+ write_dump_bitmap(s, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
+ return;
}
- ret = write_dump_pages(s);
- if (ret < 0) {
- return -1;
+ write_dump_pages(s, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
+ return;
}
ret = write_end_flat_header(s->fd);
if (ret < 0) {
- dump_error(s, "dump: failed to write end flat header.\n");
- return -1;
+ dump_error(s, "dump: failed to write end flat header", errp);
+ return;
}
dump_completed(s);
-
- return 0;
}
static ram_addr_t get_start_block(DumpState *s)
s->max_mapnr = paddr_to_pfn(last_block->target_end);
}
-static int dump_init(DumpState *s, int fd, bool has_format,
- DumpGuestMemoryFormat format, bool paging, bool has_filter,
- int64_t begin, int64_t length, Error **errp)
+static void dump_init(DumpState *s, int fd, bool has_format,
+ DumpGuestMemoryFormat format, bool paging, bool has_filter,
+ int64_t begin, int64_t length, Error **errp)
{
CPUState *cpu;
int nr_cpus;
s->begin = begin;
s->length = length;
+ memory_mapping_list_init(&s->list);
+
guest_phys_blocks_init(&s->guest_phys_blocks);
guest_phys_blocks_append(&s->guest_phys_blocks);
}
/* get memory mapping */
- memory_mapping_list_init(&s->list);
if (paging) {
qemu_get_guest_memory_mapping(&s->list, &s->guest_phys_blocks, &err);
if (err != NULL) {
s->flag_compress = 0;
}
- return 0;
+ return;
}
if (s->has_filter) {
}
}
- return 0;
+ return;
cleanup:
- guest_phys_blocks_free(&s->guest_phys_blocks);
-
- if (s->resume) {
- vm_start();
- }
-
- return -1;
+ dump_cleanup(s);
}
void qmp_dump_guest_memory(bool paging, const char *file, bool has_begin,
const char *p;
int fd = -1;
DumpState *s;
- int ret;
+ Error *local_err = NULL;
/*
* kdump-compressed format need the whole memory dumped, so paging or
s = g_malloc0(sizeof(DumpState));
- ret = dump_init(s, fd, has_format, format, paging, has_begin,
- begin, length, errp);
- if (ret < 0) {
+ dump_init(s, fd, has_format, format, paging, has_begin,
+ begin, length, &local_err);
+ if (local_err) {
g_free(s);
+ error_propagate(errp, local_err);
return;
}
if (has_format && format != DUMP_GUEST_MEMORY_FORMAT_ELF) {
- if (create_kdump_vmcore(s) < 0) {
- error_set(errp, QERR_IO_ERROR);
- }
+ create_kdump_vmcore(s, errp);
} else {
- if (create_vmcore(s) < 0) {
- error_set(errp, QERR_IO_ERROR);
- }
+ create_vmcore(s, errp);
}
g_free(s);
projects / qemu.git / blobdiff