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mirror_qemu
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Merge remote-tracking branch 'remotes/qmp-unstable/queue/qmp' into staging 

* remotes/qmp-unstable/queue/qmp:
  json-parser: drop superfluous assignment for token variable
  readline: Clear screen on form feed.
  monitor: Add delvm and loadvm argument completion
  monitor: Add host_net_remove arguments completion
  readline: Make completion strings always unique
  monitor: Add host_net_add device argument completion
  net: Export valid host network devices list
  monitor: Add migrate_set_capability completion
  monitor: Add watchdog_action argument completion
  monitor: Add ringbuf_write and ringbuf_read argument completion
  dump: simplify get_len_buf_out()
  dump: hoist lzo_init() from get_len_buf_out() to dump_init()
  dump: select header bitness based on ELF class, not ELF architecture
  dump: eliminate DumpState.page_size ("guest's page size")
  dump: eliminate DumpState.page_shift ("guest's page shift")
  dump: simplify write_start_flat_header()
  dump: fill in the flat header signature more pleasingly to the eye

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
master
Peter Maydell 2014-06-11 21:34:08 +01:00
parent 706808585a a491af471b
commit 05fedeef83
11 changed files with 300 additions and 115 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

140
dump.c
View File

@ -90,8 +90,6 @@ typedef struct DumpState {
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 */
size_t page_size; /* guest's page size */
uint32_t page_shift; /* guest's page shift */
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 */
@ -711,27 +709,25 @@ static int create_vmcore(DumpState *s)
static int write_start_flat_header(int fd)
{
uint8_t *buf;
MakedumpfileHeader mh;
MakedumpfileHeader *mh;
int ret = 0;
memset(&mh, 0, sizeof(mh));
strncpy(mh.signature, MAKEDUMPFILE_SIGNATURE,
strlen(MAKEDUMPFILE_SIGNATURE));
QEMU_BUILD_BUG_ON(sizeof *mh > MAX_SIZE_MDF_HEADER);
mh = g_malloc0(MAX_SIZE_MDF_HEADER);
mh.type = cpu_to_be64(TYPE_FLAT_HEADER);
mh.version = cpu_to_be64(VERSION_FLAT_HEADER);
memcpy(mh->signature, MAKEDUMPFILE_SIGNATURE,
MIN(sizeof mh->signature, sizeof MAKEDUMPFILE_SIGNATURE));
buf = g_malloc0(MAX_SIZE_MDF_HEADER);
memcpy(buf, &mh, sizeof(mh));
mh->type = cpu_to_be64(TYPE_FLAT_HEADER);
mh->version = cpu_to_be64(VERSION_FLAT_HEADER);
size_t written_size;
written_size = qemu_write_full(fd, buf, MAX_SIZE_MDF_HEADER);
written_size = qemu_write_full(fd, mh, MAX_SIZE_MDF_HEADER);
if (written_size != MAX_SIZE_MDF_HEADER) {
ret = -1;
}
g_free(buf);
g_free(mh);
return ret;
}
@ -808,7 +804,7 @@ static int create_header32(DumpState *s)
strncpy(dh->signature, KDUMP_SIGNATURE, strlen(KDUMP_SIGNATURE));
dh->header_version = cpu_convert_to_target32(6, endian);
block_size = s->page_size;
block_size = TARGET_PAGE_SIZE;
dh->block_size = cpu_convert_to_target32(block_size, endian);
sub_hdr_size = sizeof(struct KdumpSubHeader32) + s->note_size;
sub_hdr_size = DIV_ROUND_UP(sub_hdr_size, block_size);
@ -915,7 +911,7 @@ static int create_header64(DumpState *s)
strncpy(dh->signature, KDUMP_SIGNATURE, strlen(KDUMP_SIGNATURE));
dh->header_version = cpu_convert_to_target32(6, endian);
block_size = s->page_size;
block_size = TARGET_PAGE_SIZE;
dh->block_size = cpu_convert_to_target32(block_size, endian);
sub_hdr_size = sizeof(struct KdumpSubHeader64) + s->note_size;
sub_hdr_size = DIV_ROUND_UP(sub_hdr_size, block_size);
@ -1004,7 +1000,7 @@ out:
static int write_dump_header(DumpState *s)
{
if (s->dump_info.d_machine == EM_386) {
if (s->dump_info.d_class == ELFCLASS32) {
return create_header32(s);
} else {
return create_header64(s);
@ -1086,9 +1082,9 @@ static bool get_next_page(GuestPhysBlock **blockptr, uint64_t *pfnptr,
if (!block) {
block = QTAILQ_FIRST(&s->guest_phys_blocks.head);
*blockptr = block;
assert(block->target_start % s->page_size == 0);
assert(block->target_end % s->page_size == 0);
*pfnptr = paddr_to_pfn(block->target_start, s->page_shift);
assert((block->target_start & ~TARGET_PAGE_MASK) == 0);
assert((block->target_end & ~TARGET_PAGE_MASK) == 0);
*pfnptr = paddr_to_pfn(block->target_start);
if (bufptr) {
*bufptr = block->host_addr;
}
@ -1096,10 +1092,10 @@ static bool get_next_page(GuestPhysBlock **blockptr, uint64_t *pfnptr,
}
*pfnptr = *pfnptr + 1;
addr = pfn_to_paddr(*pfnptr, s->page_shift);
addr = pfn_to_paddr(*pfnptr);
if ((addr >= block->target_start) &&
(addr + s->page_size <= block->target_end)) {
(addr + TARGET_PAGE_SIZE <= block->target_end)) {
buf = block->host_addr + (addr - block->target_start);
} else {
/* the next page is in the next block */
@ -1108,9 +1104,9 @@ static bool get_next_page(GuestPhysBlock **blockptr, uint64_t *pfnptr,
if (!block) {
return false;
}
assert(block->target_start % s->page_size == 0);
assert(block->target_end % s->page_size == 0);
*pfnptr = paddr_to_pfn(block->target_start, s->page_shift);
assert((block->target_start & ~TARGET_PAGE_MASK) == 0);
assert((block->target_end & ~TARGET_PAGE_MASK) == 0);
*pfnptr = paddr_to_pfn(block->target_start);
buf = block->host_addr;
}
@ -1224,42 +1220,24 @@ static void free_data_cache(DataCache *data_cache)
static size_t get_len_buf_out(size_t page_size, uint32_t flag_compress)
{
size_t len_buf_out_zlib, len_buf_out_lzo, len_buf_out_snappy;
size_t len_buf_out;
switch (flag_compress) {
case DUMP_DH_COMPRESSED_ZLIB:
return compressBound(page_size);
/* init buf_out */
len_buf_out_zlib = len_buf_out_lzo = len_buf_out_snappy = 0;
/* buf size for zlib */
len_buf_out_zlib = compressBound(page_size);
/* buf size for lzo */
#ifdef CONFIG_LZO
if (flag_compress & DUMP_DH_COMPRESSED_LZO) {
if (lzo_init() != LZO_E_OK) {
/* return 0 to indicate lzo is unavailable */
return 0;
}
}
/*
* LZO will expand incompressible data by a little amount. please check the
* following URL to see the expansion calculation:
* http://www.oberhumer.com/opensource/lzo/lzofaq.php
*/
len_buf_out_lzo = page_size + page_size / 16 + 64 + 3;
#endif
case DUMP_DH_COMPRESSED_LZO:
/*
* LZO will expand incompressible data by a little amount. Please check
* the following URL to see the expansion calculation:
* http://www.oberhumer.com/opensource/lzo/lzofaq.php
*/
return page_size + page_size / 16 + 64 + 3;
#ifdef CONFIG_SNAPPY
/* buf size for snappy */
len_buf_out_snappy = snappy_max_compressed_length(page_size);
case DUMP_DH_COMPRESSED_SNAPPY:
return snappy_max_compressed_length(page_size);
#endif
/* get the biggest that can store all kinds of compressed page */
len_buf_out = MAX(len_buf_out_zlib,
MAX(len_buf_out_lzo, len_buf_out_snappy));
return len_buf_out;
}
return 0;
}
/*
@ -1294,11 +1272,8 @@ static int write_dump_pages(DumpState *s)
prepare_data_cache(&page_data, s, offset_data);
/* prepare buffer to store compressed data */
len_buf_out = get_len_buf_out(s->page_size, s->flag_compress);
if (len_buf_out == 0) {
dump_error(s, "dump: failed to get length of output buffer.\n");
goto out;
}
len_buf_out = get_len_buf_out(TARGET_PAGE_SIZE, s->flag_compress);
assert(len_buf_out != 0);
#ifdef CONFIG_LZO
wrkmem = g_malloc(LZO1X_1_MEM_COMPRESS);
@ -1310,19 +1285,19 @@ static int write_dump_pages(DumpState *s)
* 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(s->page_size, endian);
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);
buf = g_malloc0(s->page_size);
ret = write_cache(&page_data, buf, s->page_size, false);
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");
goto out;
}
offset_data += s->page_size;
offset_data += TARGET_PAGE_SIZE;
/*
* dump memory to vmcore page by page. zero page will all be resided in the
@ -1330,7 +1305,7 @@ static int write_dump_pages(DumpState *s)
*/
while (get_next_page(&block_iter, &pfn_iter, &buf, s)) {
/* check zero page */
if (is_zero_page(buf, s->page_size)) {
if (is_zero_page(buf, TARGET_PAGE_SIZE)) {
ret = write_cache(&page_desc, &pd_zero, sizeof(PageDescriptor),
false);
if (ret < 0) {
@ -1351,8 +1326,9 @@ static int write_dump_pages(DumpState *s)
*/
size_out = len_buf_out;
if ((s->flag_compress & DUMP_DH_COMPRESSED_ZLIB) &&
(compress2(buf_out, (uLongf *)&size_out, buf, s->page_size,
Z_BEST_SPEED) == Z_OK) && (size_out < s->page_size)) {
(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);
@ -1364,9 +1340,9 @@ static int write_dump_pages(DumpState *s)
}
#ifdef CONFIG_LZO
} else if ((s->flag_compress & DUMP_DH_COMPRESSED_LZO) &&
(lzo1x_1_compress(buf, s->page_size, buf_out,
(lzo1x_1_compress(buf, TARGET_PAGE_SIZE, buf_out,
(lzo_uint *)&size_out, wrkmem) == LZO_E_OK) &&
(size_out < s->page_size)) {
(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);
@ -1379,9 +1355,9 @@ static int write_dump_pages(DumpState *s)
#endif
#ifdef CONFIG_SNAPPY
} else if ((s->flag_compress & DUMP_DH_COMPRESSED_SNAPPY) &&
(snappy_compress((char *)buf, s->page_size,
(snappy_compress((char *)buf, TARGET_PAGE_SIZE,
(char *)buf_out, &size_out) == SNAPPY_OK) &&
(size_out < s->page_size)) {
(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);
@ -1395,13 +1371,13 @@ static int write_dump_pages(DumpState *s)
} else {
/*
* fall back to save in plaintext, size_out should be
* assigned to s->page_size
* assigned TARGET_PAGE_SIZE
*/
pd.flags = cpu_convert_to_target32(0, endian);
size_out = s->page_size;
size_out = TARGET_PAGE_SIZE;
pd.size = cpu_convert_to_target32(size_out, endian);
ret = write_cache(&page_data, buf, s->page_size, false);
ret = write_cache(&page_data, buf, TARGET_PAGE_SIZE, false);
if (ret < 0) {
dump_error(s, "dump: failed to write page data.\n");
goto out;
@ -1536,7 +1512,7 @@ static void get_max_mapnr(DumpState *s)
GuestPhysBlock *last_block;
last_block = QTAILQ_LAST(&s->guest_phys_blocks.head, GuestPhysBlockHead);
s->max_mapnr = paddr_to_pfn(last_block->target_end, s->page_shift);
s->max_mapnr = paddr_to_pfn(last_block->target_end);
}
static int dump_init(DumpState *s, int fd, bool has_format,
@ -1613,14 +1589,12 @@ static int dump_init(DumpState *s, int fd, bool has_format,
}
s->nr_cpus = nr_cpus;
s->page_size = TARGET_PAGE_SIZE;
s->page_shift = ffs(s->page_size) - 1;
get_max_mapnr(s);
uint64_t tmp;
tmp = DIV_ROUND_UP(DIV_ROUND_UP(s->max_mapnr, CHAR_BIT), s->page_size);
s->len_dump_bitmap = tmp * s->page_size;
tmp = DIV_ROUND_UP(DIV_ROUND_UP(s->max_mapnr, CHAR_BIT), TARGET_PAGE_SIZE);
s->len_dump_bitmap = tmp * TARGET_PAGE_SIZE;
/* init for kdump-compressed format */
if (has_format && format != DUMP_GUEST_MEMORY_FORMAT_ELF) {
@ -1630,6 +1604,12 @@ static int dump_init(DumpState *s, int fd, bool has_format,
break;
case DUMP_GUEST_MEMORY_FORMAT_KDUMP_LZO:
#ifdef CONFIG_LZO
if (lzo_init() != LZO_E_OK) {
error_setg(errp, "failed to initialize the LZO library");
goto cleanup;
}
#endif
s->flag_compress = DUMP_DH_COMPRESSED_LZO;
break;

10
hmp-commands.hx
View File

@ -335,6 +335,7 @@ ETEXI
.params = "tag|id",
.help = "restore a VM snapshot from its tag or id",
.mhandler.cmd = do_loadvm,
.command_completion = loadvm_completion,
},
STEXI
@ -350,6 +351,7 @@ ETEXI
.params = "tag|id",
.help = "delete a VM snapshot from its tag or id",
.mhandler.cmd = do_delvm,
.command_completion = delvm_completion,
},
STEXI
@ -852,6 +854,7 @@ ETEXI
.params = "device data",
.help = "Write to a ring buffer character device",
.mhandler.cmd = hmp_ringbuf_write,
.command_completion = ringbuf_write_completion,
},
STEXI
@ -868,6 +871,7 @@ ETEXI
.params = "device size",
.help = "Read from a ring buffer character device",
.mhandler.cmd = hmp_ringbuf_read,
.command_completion = ringbuf_write_completion,
},
STEXI
@ -973,6 +977,7 @@ ETEXI
.params = "capability state",
.help = "Enable/Disable the usage of a capability for migration",
.mhandler.cmd = hmp_migrate_set_capability,
.command_completion = migrate_set_capability_completion,
},
STEXI
@ -1206,9 +1211,10 @@ ETEXI
{
.name = "host_net_add",
.args_type = "device:s,opts:s?",
.params = "tap|user|socket|vde|netmap|dump [options]",
.params = "tap|user|socket|vde|netmap|bridge|dump [options]",
.help = "add host VLAN client",
.mhandler.cmd = net_host_device_add,
.command_completion = host_net_add_completion,
},
STEXI
@ -1223,6 +1229,7 @@ ETEXI
.params = "vlan_id name",
.help = "remove host VLAN client",
.mhandler.cmd = net_host_device_remove,
.command_completion = host_net_remove_completion,
},
STEXI
@ -1357,6 +1364,7 @@ ETEXI
.params = "[reset|shutdown|poweroff|pause|debug|none]",
.help = "change watchdog action",
.mhandler.cmd = do_watchdog_action,
.command_completion = watchdog_action_completion,
},
STEXI

11
hmp.h
View File

@ -103,5 +103,16 @@ void chardev_add_completion(ReadLineState *rs, int nb_args, const char *str);
void set_link_completion(ReadLineState *rs, int nb_args, const char *str);
void netdev_add_completion(ReadLineState *rs, int nb_args, const char *str);
void netdev_del_completion(ReadLineState *rs, int nb_args, const char *str);
void ringbuf_write_completion(ReadLineState *rs, int nb_args, const char *str);
void ringbuf_read_completion(ReadLineState *rs, int nb_args, const char *str);
void watchdog_action_completion(ReadLineState *rs, int nb_args,
const char *str);
void migrate_set_capability_completion(ReadLineState *rs, int nb_args,
const char *str);
void host_net_add_completion(ReadLineState *rs, int nb_args, const char *str);
void host_net_remove_completion(ReadLineState *rs, int nb_args,
const char *str);
void delvm_completion(ReadLineState *rs, int nb_args, const char *str);
void loadvm_completion(ReadLineState *rs, int nb_args, const char *str);
#endif

1
include/net/net.h
View File

@ -177,6 +177,7 @@ struct NICInfo {
extern int nb_nics;
extern NICInfo nd_table[MAX_NICS];
extern int default_net;
extern const char *host_net_devices[];
/* from net.c */
extern const char *legacy_tftp_prefix;

3
include/sysemu/char.h
View File

@ -286,9 +286,8 @@ void qemu_chr_add_handlers(CharDriverState *s,
void qemu_chr_be_generic_open(CharDriverState *s);
void qemu_chr_accept_input(CharDriverState *s);
int qemu_chr_add_client(CharDriverState *s, int fd);
void qemu_chr_info_print(Monitor *mon, const QObject *ret_data);
void qemu_chr_info(Monitor *mon, QObject **ret_data);
CharDriverState *qemu_chr_find(const char *name);
bool chr_is_ringbuf(const CharDriverState *chr);
QemuOpts *qemu_chr_parse_compat(const char *label, const char *filename);

8
include/sysemu/dump.h
View File

@ -22,10 +22,10 @@
#define ARCH_PFN_OFFSET (0)
#define paddr_to_pfn(X, page_shift) \
(((unsigned long long)(X) >> (page_shift)) - ARCH_PFN_OFFSET)
#define pfn_to_paddr(X, page_shift) \
(((unsigned long long)(X) + ARCH_PFN_OFFSET) << (page_shift))
#define paddr_to_pfn(X) \
(((unsigned long long)(X) >> TARGET_PAGE_BITS) - ARCH_PFN_OFFSET)
#define pfn_to_paddr(X) \
(((unsigned long long)(X) + ARCH_PFN_OFFSET) << TARGET_PAGE_BITS)
/*
* flag for compressed format

176
monitor.c
View File

@ -70,6 +70,7 @@
#include "qmp-commands.h"
#include "hmp.h"
#include "qemu/thread.h"
#include "block/qapi.h"
/* for pic/irq_info */
#if defined(TARGET_SPARC)
@ -4412,6 +4413,45 @@ void chardev_remove_completion(ReadLineState *rs, int nb_args, const char *str)
qapi_free_ChardevInfoList(start);
}
static void ringbuf_completion(ReadLineState *rs, const char *str)
{
size_t len;
ChardevInfoList *list, *start;
len = strlen(str);
readline_set_completion_index(rs, len);
start = list = qmp_query_chardev(NULL);
while (list) {
ChardevInfo *chr_info = list->value;
if (!strncmp(chr_info->label, str, len)) {
CharDriverState *chr = qemu_chr_find(chr_info->label);
if (chr && chr_is_ringbuf(chr)) {
readline_add_completion(rs, chr_info->label);
}
}
list = list->next;
}
qapi_free_ChardevInfoList(start);
}
void ringbuf_read_completion(ReadLineState *rs, int nb_args, const char *str)
{
if (nb_args != 2) {
return;
}
ringbuf_completion(rs, str);
}
void ringbuf_write_completion(ReadLineState *rs, int nb_args, const char *str)
{
if (nb_args != 2) {
return;
}
ringbuf_completion(rs, str);
}
void device_del_completion(ReadLineState *rs, int nb_args, const char *str)
{
size_t len;
@ -4520,6 +4560,142 @@ void netdev_del_completion(ReadLineState *rs, int nb_args, const char *str)
}
}
void watchdog_action_completion(ReadLineState *rs, int nb_args, const char *str)
{
if (nb_args != 2) {
return;
}
readline_set_completion_index(rs, strlen(str));
add_completion_option(rs, str, "reset");
add_completion_option(rs, str, "shutdown");
add_completion_option(rs, str, "poweroff");
add_completion_option(rs, str, "pause");
add_completion_option(rs, str, "debug");
add_completion_option(rs, str, "none");
}
void migrate_set_capability_completion(ReadLineState *rs, int nb_args,
const char *str)
{
size_t len;
len = strlen(str);
readline_set_completion_index(rs, len);
if (nb_args == 2) {
int i;
for (i = 0; i < MIGRATION_CAPABILITY_MAX; i++) {
const char *name = MigrationCapability_lookup[i];
if (!strncmp(str, name, len)) {
readline_add_completion(rs, name);
}
}
} else if (nb_args == 3) {
add_completion_option(rs, str, "on");
add_completion_option(rs, str, "off");
}
}
void host_net_add_completion(ReadLineState *rs, int nb_args, const char *str)
{
int i;
size_t len;
if (nb_args != 2) {
return;
}
len = strlen(str);
readline_set_completion_index(rs, len);
for (i = 0; host_net_devices[i]; i++) {
if (!strncmp(host_net_devices[i], str, len)) {
readline_add_completion(rs, host_net_devices[i]);
}
}
}
void host_net_remove_completion(ReadLineState *rs, int nb_args, const char *str)
{
NetClientState *ncs[255];
int count, i, len;
len = strlen(str);
readline_set_completion_index(rs, len);
if (nb_args == 2) {
count = qemu_find_net_clients_except(NULL, ncs,
NET_CLIENT_OPTIONS_KIND_NONE, 255);
for (i = 0; i < count; i++) {
int id;
char name[16];
if (net_hub_id_for_client(ncs[i], &id)) {
continue;
}
snprintf(name, sizeof(name), "%d", id);
if (!strncmp(str, name, len)) {
readline_add_completion(rs, name);
}
}
return;
} else if (nb_args == 3) {
count = qemu_find_net_clients_except(NULL, ncs,
NET_CLIENT_OPTIONS_KIND_NIC, 255);
for (i = 0; i < count; i++) {
const char *name;
name = ncs[i]->name;
if (!strncmp(str, name, len)) {
readline_add_completion(rs, name);
}
}
return;
}
}
static void vm_completion(ReadLineState *rs, const char *str)
{
size_t len;
BlockDriverState *bs = NULL;
len = strlen(str);
readline_set_completion_index(rs, len);
while ((bs = bdrv_next(bs))) {
SnapshotInfoList *snapshots, *snapshot;
if (!bdrv_can_snapshot(bs)) {
continue;
}
if (bdrv_query_snapshot_info_list(bs, &snapshots, NULL)) {
continue;
}
snapshot = snapshots;
while (snapshot) {
char *completion = snapshot->value->name;
if (!strncmp(str, completion, len)) {
readline_add_completion(rs, completion);
}
completion = snapshot->value->id;
if (!strncmp(str, completion, len)) {
readline_add_completion(rs, completion);
}
snapshot = snapshot->next;
}
qapi_free_SnapshotInfoList(snapshots);
}
}
void delvm_completion(ReadLineState *rs, int nb_args, const char *str)
{
if (nb_args == 2) {
vm_completion(rs, str);
}
}
void loadvm_completion(ReadLineState *rs, int nb_args, const char *str)
{
if (nb_args == 2) {
vm_completion(rs, str);
}
}
static void monitor_find_completion_by_table(Monitor *mon,
const mon_cmd_t *cmd_table,
char **args,

34
net/net.c
View File

@ -49,6 +49,22 @@
static QTAILQ_HEAD(, NetClientState) net_clients;
const char *host_net_devices[] = {
"tap",
"socket",
"dump",
#ifdef CONFIG_NET_BRIDGE
"bridge",
#endif
#ifdef CONFIG_SLIRP
"user",
#endif
#ifdef CONFIG_VDE
"vde",
#endif
NULL,
};
int default_net = 1;
/***********************************************************/
@ -897,21 +913,11 @@ int net_client_init(QemuOpts *opts, int is_netdev, Error **errp)
static int net_host_check_device(const char *device)
{
int i;
const char *valid_param_list[] = { "tap", "socket", "dump"
#ifdef CONFIG_NET_BRIDGE
, "bridge"
#endif
#ifdef CONFIG_SLIRP
,"user"
#endif
#ifdef CONFIG_VDE
,"vde"
#endif
};
for (i = 0; i < ARRAY_SIZE(valid_param_list); i++) {
if (!strncmp(valid_param_list[i], device,
strlen(valid_param_list[i])))
for (i = 0; host_net_devices[i]; i++) {
if (!strncmp(host_net_devices[i], device,
strlen(host_net_devices[i]))) {
return 1;
}
}
return 0;

2
qemu-char.c
View File

@ -2849,7 +2849,7 @@ fail:
return NULL;
}
static bool chr_is_ringbuf(const CharDriverState *chr)
bool chr_is_ringbuf(const CharDriverState *chr)
{
return chr->chr_write == ringbuf_chr_write;
}

15
qobject/json-parser.c
View File

@ -423,7 +423,6 @@ static QObject *parse_object(JSONParserContext *ctxt, va_list *ap)
if (!token_is_operator(token, '{')) {
goto out;
}
token = NULL;
dict = qdict_new();
@ -449,7 +448,6 @@ static QObject *parse_object(JSONParserContext *ctxt, va_list *ap)
parse_error(ctxt, token, "expected separator in dict");
goto out;
}
token = NULL;
if (parse_pair(ctxt, dict, ap) == -1) {
goto out;
@ -461,10 +459,8 @@ static QObject *parse_object(JSONParserContext *ctxt, va_list *ap)
goto out;
}
}
token = NULL;
} else {
token = parser_context_pop_token(ctxt);
token = NULL;
(void)parser_context_pop_token(ctxt);
}
return QOBJECT(dict);
@ -487,10 +483,8 @@ static QObject *parse_array(JSONParserContext *ctxt, va_list *ap)
}
if (!token_is_operator(token, '[')) {
token = NULL;
goto out;
}
token = NULL;
list = qlist_new();
@ -523,8 +517,6 @@ static QObject *parse_array(JSONParserContext *ctxt, va_list *ap)
goto out;
}
token = NULL;
obj = parse_value(ctxt, ap);
if (obj == NULL) {
parse_error(ctxt, token, "expecting value");
@ -539,11 +531,8 @@ static QObject *parse_array(JSONParserContext *ctxt, va_list *ap)
goto out;
}
}
token = NULL;
} else {
token = parser_context_pop_token(ctxt);
token = NULL;
(void)parser_context_pop_token(ctxt);
}
return QOBJECT(list);

15
util/readline.c
View File

@ -263,6 +263,12 @@ static void readline_hist_add(ReadLineState *rs, const char *cmdline)
void readline_add_completion(ReadLineState *rs, const char *str)
{
if (rs->nb_completions < READLINE_MAX_COMPLETIONS) {
int i;
for (i = 0; i < rs->nb_completions; i++) {
if (!strcmp(rs->completions[i], str)) {
return;
}
}
rs->completions[rs->nb_completions++] = g_strdup(str);
}
}
@ -345,6 +351,12 @@ static void readline_completion(ReadLineState *rs)
}
}
static void readline_clear_screen(ReadLineState *rs)
{
rs->printf_func(rs->opaque, "\033[2J\033[1;1H");
readline_show_prompt(rs);
}
/* return true if command handled */
void readline_handle_byte(ReadLineState *rs, int ch)
{
@ -363,6 +375,9 @@ void readline_handle_byte(ReadLineState *rs, int ch)
case 9:
readline_completion(rs);
break;
case 12:
readline_clear_screen(rs);
break;
case 10:
case 13:
rs->cmd_buf[rs->cmd_buf_size] = '\0';