From acee3c04e8208c17aad1baff99baa68d71640a19 Mon Sep 17 00:00:00 2001 From: Avi Kivity Date: Tue, 26 Aug 2008 17:22:47 +0300 Subject: [PATCH] KVM: Allocate guest memory as MAP_PRIVATE, not MAP_SHARED There is no reason to share internal memory slots with fork()ed instances. Signed-off-by: Avi Kivity --- arch/x86/kvm/x86.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index bfc7c332c5d7..675d010995a2 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -4296,7 +4296,7 @@ int kvm_arch_set_memory_region(struct kvm *kvm, userspace_addr = do_mmap(NULL, 0, npages * PAGE_SIZE, PROT_READ | PROT_WRITE, - MAP_SHARED | MAP_ANONYMOUS, + MAP_PRIVATE | MAP_ANONYMOUS, 0); up_write(¤t->mm->mmap_sem); -- 2.20.1