[Qemu-devel] [PATCH 20/20] kvm: Activate in-kernel irqchip support

[Marcelo Tosatti]

From: Jan Kiszka <address@hidden>

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 <address@hidden>
---
 qemu-config.c   |    4 ++++
 qemu-options.hx |    5 ++++-
 2 files changed, 8 insertions(+), 1 deletions(-)

diff --git a/qemu-config.c b/qemu-config.c
index ecc88e8..b030205 100644
--- a/qemu-config.c
+++ b/qemu-config.c
@@ -531,6 +531,10 @@ static QemuOptsList qemu_machine_opts = {
             .name = "accel",
             .type = QEMU_OPT_STRING,
             .help = "accelerator list",
+        }, {
+            .name = "kernel_irqchip",
+            .type = QEMU_OPT_BOOL,
+            .help = "use KVM in-kernel irqchip",
         },
         { /* End of list */ }
     },
diff --git a/qemu-options.hx b/qemu-options.hx
index 6295cde..3a07ae8 100644
--- a/qemu-options.hx
+++ b/qemu-options.hx
@@ -31,7 +31,8 @@ DEF("machine", HAS_ARG, QEMU_OPTION_machine, \
     "-machine [type=]name[,prop[=value][,...]]\n"
     "                selects emulated machine (-machine ? for list)\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)
 STEXI
 @item -machine address@hidden,address@hidden,...]]
@@ -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
 than one accelerator specified, the next one is used if the previous one fails
 to initialize.
address@hidden kernel_irqchip=on|off
+Enables in-kernel irqchip support for the chosen accelerator when available.
 @end table
 ETEXI
 
-- 
1.7.6.4