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qapi: add 'query-target' command to return target arch

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Add a 'query-target' QAPI command to allow management applications
to determine what target architecture a QEMU binary is emulating
without having to parse the binary name or -help output

  $ qmp-shell -p /tmp/qemu
  (QEMU) query-target
  {   u'return': {   u'arch': u'x86_64' }}

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Daniel P. Berrange 2012-08-20 15:31:38 +01:00 committed by Anthony Liguori
parent 67c332fd12
commit 99afc91d6c
4 changed files with 61 additions and 1 deletions
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11
arch_init.c
View File

@ -44,6 +44,7 @@
#include "exec-memory.h"
#include "hw/pcspk.h"
#include "qemu/page_cache.h"
#include "qmp-commands.h"
#ifdef DEBUG_ARCH_INIT
#define DPRINTF(fmt, ...) \
@ -1080,3 +1081,13 @@ int xen_available(void)
return 0;
#endif
}
TargetInfo *qmp_query_target(Error **errp)
{
TargetInfo *info = g_malloc0(sizeof(*info));
info->arch = TARGET_TYPE;
return info;
}

7
configure vendored
View File

@ -3834,14 +3834,19 @@ case "$target_arch2" in
;;
esac
upper() {
echo "$@"| LC_ALL=C tr '[a-z]' '[A-Z]'
}
echo "TARGET_SHORT_ALIGNMENT=$target_short_alignment" >> $config_target_mak
echo "TARGET_INT_ALIGNMENT=$target_int_alignment" >> $config_target_mak
echo "TARGET_LONG_ALIGNMENT=$target_long_alignment" >> $config_target_mak
echo "TARGET_LLONG_ALIGNMENT=$target_llong_alignment" >> $config_target_mak
echo "TARGET_ARCH=$TARGET_ARCH" >> $config_target_mak
target_arch_name="`echo $TARGET_ARCH | LC_ALL=C tr '[a-z]' '[A-Z]'`"
target_arch_name="`upper $TARGET_ARCH`"
echo "TARGET_$target_arch_name=y" >> $config_target_mak
echo "TARGET_ARCH2=$target_arch2" >> $config_target_mak
echo "TARGET_TYPE=TARGET_TYPE_`upper $target_arch2`" >> $config_target_mak
echo "TARGET_BASE_ARCH=$TARGET_BASE_ARCH" >> $config_target_mak
if [ "$TARGET_ABI_DIR" = "" ]; then
TARGET_ABI_DIR=$TARGET_ARCH

39
qapi-schema.json
View File

@ -2454,3 +2454,42 @@
#
##
{ 'command': 'query-fdsets', 'returns': ['FdsetInfo'] }
##
# @TargetType
#
# Target CPU emulation type
#
# These parameters correspond to the softmmu binary CPU name that is currently
# running.
#
# Since: 1.2.0
##
{ 'enum': 'TargetType',
'data': [ 'alpha', 'arm', 'cris', 'i386', 'lm32', 'm68k', 'microblazeel',
'microblaze', 'mips64el', 'mips64', 'mipsel', 'mips', 'or32',
'ppc64', 'ppcemb', 'ppc', 's390x', 'sh4eb', 'sh4', 'sparc64',
'sparc', 'unicore32', 'x86_64', 'xtensaeb', 'xtensa' ] }
##
# @TargetInfo:
#
# Information describing the QEMU target.
#
# @arch: the target architecture (eg "x86_64", "i386", etc)
#
# Since: 1.2.0
##
{ 'type': 'TargetInfo',
'data': { 'arch': 'TargetType' } }
##
# @query-target:
#
# Return information about the target for this QEMU
#
# Returns: TargetInfo
#
# Since: 1.2.0
##
{ 'command': 'query-target', 'returns': 'TargetInfo' }

5
qmp-commands.hx
View File

@ -2509,3 +2509,8 @@ EQMP
.mhandler.cmd_new = qmp_marshal_input_query_cpu_definitions,
},
{
.name = "query-target",
.args_type = "",
.mhandler.cmd_new = qmp_marshal_input_query_target,
},