From f59489423ab79852e98d9b3025b7d99ba8da584f Mon Sep 17 00:00:00 2001
From: Alex Williamson <alex.williamson@redhat.com>
Date: Fri, 17 Aug 2018 09:27:15 -0600
Subject: kvm: Use inhibit to prevent ballooning without synchronous mmu

Remove KVM specific tests in balloon_page(), instead marking
ballooning as inhibited without KVM_CAP_SYNC_MMU support.

Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
---
 accel/kvm/kvm-all.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'accel/kvm/kvm-all.c')

diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c
index eb7db92a5e..38f468d8e2 100644
--- a/accel/kvm/kvm-all.c
+++ b/accel/kvm/kvm-all.c
@@ -39,6 +39,7 @@
 #include "trace.h"
 #include "hw/irq.h"
 #include "sysemu/sev.h"
+#include "sysemu/balloon.h"
 
 #include "hw/boards.h"
 
@@ -1698,6 +1699,9 @@ static int kvm_init(MachineState *ms)
     s->many_ioeventfds = kvm_check_many_ioeventfds();
 
     s->sync_mmu = !!kvm_vm_check_extension(kvm_state, KVM_CAP_SYNC_MMU);
+    if (!s->sync_mmu) {
+        qemu_balloon_inhibit(true);
+    }
 
     return 0;
 
-- 
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