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| author | Radim Krčmář <rkrcmar@redhat.com> | 2019-04-29 16:25:35 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2019-04-30 22:30:49 +0300 |
| commit | 3a1e5e4a2c7a1ec63e6d70a7e921f62bcbb57b85 (patch) | |
| tree | 4f525f241b8da78f075b3069abb48d121d3ad026 /Documentation/virtual | |
| parent | da8f0d97b2a02ebc98eb380d9e59c7fb653d4ad8 (diff) | |
| download | linux-3a1e5e4a2c7a1ec63e6d70a7e921f62bcbb57b85.tar.xz | |
Revert "KVM: doc: Document the life cycle of a VM and its resources"
This reverts commit 919f6cd8bb2fe7151f8aecebc3b3d1ca2567396e.
The patch was applied twice.
The first commit is eca6be566d47029f945a5f8e1c94d374e31df2ca.
Reported-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'Documentation/virtual')
| -rw-r--r-- | Documentation/virtual/kvm/api.txt | 17 |
1 files changed, 0 insertions, 17 deletions
diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt index b62ad0d94234..26dc1280b49b 100644 --- a/Documentation/virtual/kvm/api.txt +++ b/Documentation/virtual/kvm/api.txt @@ -69,23 +69,6 @@ by and on behalf of the VM's process may not be freed/unaccounted when the VM is shut down. -It is important to note that althought VM ioctls may only be issued from -the process that created the VM, a VM's lifecycle is associated with its -file descriptor, not its creator (process). In other words, the VM and -its resources, *including the associated address space*, are not freed -until the last reference to the VM's file descriptor has been released. -For example, if fork() is issued after ioctl(KVM_CREATE_VM), the VM will -not be freed until both the parent (original) process and its child have -put their references to the VM's file descriptor. - -Because a VM's resources are not freed until the last reference to its -file descriptor is released, creating additional references to a VM via -via fork(), dup(), etc... without careful consideration is strongly -discouraged and may have unwanted side effects, e.g. memory allocated -by and on behalf of the VM's process may not be freed/unaccounted when -the VM is shut down. - - 3. Extensions ------------- |