From 5cb0944c0c66004c0d9006a7f0fba5782ae38f69 Mon Sep 17 00:00:00 2001
From: Paolo Bonzini <pbonzini@redhat.com>
Date: Tue, 12 Dec 2017 17:41:34 +0100
Subject: KVM: introduce kvm_arch_vcpu_async_ioctl

After the vcpu_load/vcpu_put pushdown, the handling of asynchronous VCPU
ioctl is already much clearer in that it is obvious that they bypass
vcpu_load and vcpu_put.

However, it is still not perfect in that the different state of the VCPU
mutex is still hidden in the caller.  Separate those ioctls into a new
function kvm_arch_vcpu_async_ioctl that returns -ENOIOCTLCMD for more
"traditional" synchronous ioctls.

Cc: James Hogan <jhogan@kernel.org>
Cc: Paul Mackerras <paulus@ozlabs.org>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Suggested-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 virt/kvm/Kconfig | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'virt/kvm/Kconfig')

diff --git a/virt/kvm/Kconfig b/virt/kvm/Kconfig
index 70691c08e1ed..cca7e065a075 100644
--- a/virt/kvm/Kconfig
+++ b/virt/kvm/Kconfig
@@ -51,3 +51,6 @@ config KVM_COMPAT
 
 config HAVE_KVM_IRQ_BYPASS
        bool
+
+config HAVE_KVM_VCPU_ASYNC_IOCTL
+       bool
-- 
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