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Re: [PATCH] accel/kvm: Make "kernel_irqchip" default on


From: Paolo Bonzini
Subject: Re: [PATCH] accel/kvm: Make "kernel_irqchip" default on
Date: Sat, 28 Dec 2019 10:02:09 +0000



Il sab 28 dic 2019, 09:48 Xiaoyao Li <address@hidden> ha scritto:
Commit 11bc4a13d1f4 ("kvm: convert "-machine kernel_irqchip" to an
accelerator property") moves kernel_irqchip property from "-machine" to
"-accel kvm", but it forgets to set the default value of
kernel_irqchip_allowed and kernel_irqchip_split.

Also cleaning up the three useless members (kernel_irqchip_allowed,
kernel_irqchip_required, kernel_irqchip_split) in struct MachineState.

Fixes: 11bc4a13d1f4 ("kvm: convert "-machine kernel_irqchip" to an accelerator property")
Signed-off-by: Xiaoyao Li <address@hidden>

Please also add a Reported-by line for Vitaly Kuznetsov.

---
 accel/kvm/kvm-all.c | 3 +++
 include/hw/boards.h | 3 ---
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c
index b2f1a5bcb5ef..40f74094f8d3 100644
--- a/accel/kvm/kvm-all.c
+++ b/accel/kvm/kvm-all.c
@@ -3044,8 +3044,11 @@ bool kvm_kernel_irqchip_split(void)
 static void kvm_accel_instance_init(Object *obj)
 {
     KVMState *s = KVM_STATE(obj);
+    MachineClass *mc = MACHINE_GET_CLASS(current_machine);

     s->kvm_shadow_mem = -1;
+    s->kernel_irqchip_allowed = true;
+    s->kernel_irqchip_split = mc->default_kernel_irqchip_split;

Can you initialize this from the init_machine method instead of assuming that current_machine has been initialized earlier?

Thanks for the quick fix!

Paolo
 }

 static void kvm_accel_class_init(ObjectClass *oc, void *data)
diff --git a/include/hw/boards.h b/include/hw/boards.h
index 61f8bb8e5a42..fb1b43d5b972 100644
--- a/include/hw/boards.h
+++ b/include/hw/boards.h
@@ -271,9 +271,6 @@ struct MachineState {

     /*< public >*/

-    bool kernel_irqchip_allowed;
-    bool kernel_irqchip_required;
-    bool kernel_irqchip_split;
     char *dtb;
     char *dumpdtb;
     int phandle_start;
--
2.19.1


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