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[Qemu-devel] [PATCH] machine: Add kvm-type property
From: |
Eduardo Habkost |
Subject: |
[Qemu-devel] [PATCH] machine: Add kvm-type property |
Date: |
Fri, 30 May 2014 17:41:07 -0300 |
The kvm-type machine option was left out when MachineState was
introduced, preventing the kvm-type option from being used. Add the
missing property.
Signed-off-by: Eduardo Habkost <address@hidden>
Cc: Andreas Färber <address@hidden>
Cc: Aneesh Kumar K.V <address@hidden>
Cc: Alexander Graf <address@hidden>
Cc: Marcel Apfelbaum <address@hidden>
---
Tested in a x86 machine only. Help would be welcome to test it on a PPC
machine using -machine spapr and KVM.
Before this patch:
$ qemu-system-x86_64 -machine pc,kvm-type=hv,accel=kvm
qemu-system-x86_64: Property '.kvm-type' not found
(This means the option won't work even for sPAPR machines.)
After applying this patch:
$ qemu-system-x86_64 -machine pc,kvm-type=hv,accel=kvm
Invalid argument kvm-type=hv
(This means the x86 KVM init code is seeing (and rejecting) the option,
and the sPAPR code can use it.)
Note that qemu-system-x86_64 will segfault with the above command-line
unless an additional fix (submitted today) is applied (kvm: Ensure
negative return value on kvm_init() error handling path).
---
hw/core/machine.c | 17 +++++++++++++++++
include/hw/boards.h | 1 +
2 files changed, 18 insertions(+)
diff --git a/hw/core/machine.c b/hw/core/machine.c
index cbba679..ed47b3a 100644
--- a/hw/core/machine.c
+++ b/hw/core/machine.c
@@ -235,6 +235,21 @@ static void machine_set_firmware(Object *obj, const char
*value, Error **errp)
ms->firmware = g_strdup(value);
}
+static char *machine_get_kvm_type(Object *obj, Error **errp)
+{
+ MachineState *ms = MACHINE(obj);
+
+ return g_strdup(ms->kvm_type);
+}
+
+static void machine_set_kvm_type(Object *obj, const char *value, Error **errp)
+{
+ MachineState *ms = MACHINE(obj);
+
+ g_free(ms->kvm_type);
+ ms->kvm_type = g_strdup(value);
+}
+
static void machine_initfn(Object *obj)
{
object_property_add_str(obj, "accel",
@@ -274,6 +289,8 @@ static void machine_initfn(Object *obj)
object_property_add_bool(obj, "usb", machine_get_usb, machine_set_usb,
NULL);
object_property_add_str(obj, "firmware",
machine_get_firmware, machine_set_firmware, NULL);
+ object_property_add_str(obj, "kvm-type",
+ machine_get_kvm_type, machine_set_kvm_type, NULL);
}
static void machine_finalize(Object *obj)
diff --git a/include/hw/boards.h b/include/hw/boards.h
index 2d2e2be..44956d6 100644
--- a/include/hw/boards.h
+++ b/include/hw/boards.h
@@ -111,6 +111,7 @@ struct MachineState {
bool mem_merge;
bool usb;
char *firmware;
+ char *kvm_type;
ram_addr_t ram_size;
const char *boot_order;
--
1.9.0
- [Qemu-devel] [PATCH] machine: Add kvm-type property,
Eduardo Habkost <=