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kvm: Activate in-kernel irqchip support

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Make the basic in-kernel irqchip support selectable via
-machine ...,kernel_irqchip=on. Leave it off by default until it can
fully replace user space models.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
This commit is contained in:
Jan Kiszka 2011-10-15 13:43:48 +02:00
parent a39c1d47ac
commit 6a48ffaaa7
2 changed files with 8 additions and 1 deletions
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4
qemu-config.c
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@ -531,6 +531,10 @@ static QemuOptsList qemu_machine_opts = {
.name = "accel", .name = "accel",
.type = QEMU_OPT_STRING, .type = QEMU_OPT_STRING,
.help = "accelerator list", .help = "accelerator list",
}, {
.name = "kernel_irqchip",
.type = QEMU_OPT_BOOL,
.help = "use KVM in-kernel irqchip",
}, },
{ /* End of list */ } { /* End of list */ }
}, },

5
qemu-options.hx
View File

@ -31,7 +31,8 @@ DEF("machine", HAS_ARG, QEMU_OPTION_machine, \
"-machine [type=]name[,prop[=value][,...]]\n" "-machine [type=]name[,prop[=value][,...]]\n"
" selects emulated machine (-machine ? for list)\n" " selects emulated machine (-machine ? for list)\n"
" property accel=accel1[:accel2[:...]] selects accelerator\n" " property accel=accel1[:accel2[:...]] selects accelerator\n"
" supported accelerators are kvm, xen, tcg (default: tcg)\n", " supported accelerators are kvm, xen, tcg (default: tcg)\n"
" kernel_irqchip=on|off controls accelerated irqchip support\n",
QEMU_ARCH_ALL) QEMU_ARCH_ALL)
STEXI STEXI
@item -machine [type=]@var{name}[,prop=@var{value}[,...]] @item -machine [type=]@var{name}[,prop=@var{value}[,...]]
@ -44,6 +45,8 @@ This is used to enable an accelerator. Depending on the target architecture,
kvm, xen, or tcg can be available. By default, tcg is used. If there is more kvm, xen, or tcg can be available. By default, tcg is used. If there is more
than one accelerator specified, the next one is used if the previous one fails than one accelerator specified, the next one is used if the previous one fails
to initialize. to initialize.
@item kernel_irqchip=on|off
Enables in-kernel irqchip support for the chosen accelerator when available.
@end table @end table
ETEXI ETEXI