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authorAvi Kivity <avi@qumranet.com>2008-08-26 17:22:47 +0300
committerAvi Kivity <avi@qumranet.com>2008-10-15 10:15:23 +0200
commitacee3c04e8208c17aad1baff99baa68d71640a19 (patch)
tree2dd9ef2697686319ae0b92f1ffe674530493709b /arch
parentabb9e0b8e33e58ac8e04e03b680c46435bc312fd (diff)
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 <avi@qumranet.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/kvm/x86.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index bfc7c332c5d..675d010995a 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(&current->mm->mmap_sem);