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Introduce -machine command option.

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This option gives the ability to switch one "accelerator" like kvm, xen
or the default one tcg. We can specify more than one accelerator by
separate them by a colon. QEMU will try each one and use the first whose
works.

So,
./qemu -machine accel=xen:kvm:tcg

which would try Xen support first, then KVM and finally TCG if none of
the other works.

By default, QEMU will use TCG. But we can specify another default in the
global configuration file.

Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Anthony PERARD 2010-09-21 20:05:31 +01:00 • committed by Alexander Graf
parent 85097db695
commit 303d4e865b
5 changed files with 120 additions and 12 deletions
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14
qemu-config.c
View file

@ -450,6 +450,19 @@ QemuOptsList qemu_option_rom_opts = {
},
};
static QemuOptsList qemu_machine_opts = {
.name = "machine",
.head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head),
.desc = {
{
.name = "accel",
.type = QEMU_OPT_STRING,
.help = "accelerator list",
},
{ /* End of list */ }
},
};
static QemuOptsList *vm_config_groups[32] = {
&qemu_drive_opts,
&qemu_chardev_opts,
@ -464,6 +477,7 @@ static QemuOptsList *vm_config_groups[32] = {
&qemu_trace_opts,
#endif
&qemu_option_rom_opts,
&qemu_machine_opts,
NULL,
};