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| author | Jan Kiszka <jan.kiszka@siemens.com> | 2010-05-04 09:45:26 -0300 |
|---|---|---|
| committer | Marcelo Tosatti <mtosatti@redhat.com> | 2010-05-11 14:02:22 -0300 |
| commit | dbaa07c404d05676df8a081e60b6e66344eafc51 (patch) | |
| tree | 694871aaa1853bb7422dfb385119eea9340904b8 | |
| parent | ced6c05143b49a910342862ed9c14204e1177ee4 (diff) | |
kvm: validate context for kvm cpu get/put operations
Validate that KVM vcpu state is only read/written from cpu thread itself
or that cpu is stopped.
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
| -rw-r--r-- | target-i386/kvm.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/target-i386/kvm.c b/target-i386/kvm.c index f73b47b97..c9ec72eee 100644 --- a/target-i386/kvm.c +++ b/target-i386/kvm.c @@ -949,6 +949,8 @@ int kvm_arch_put_registers(CPUState *env, int level) { int ret; + assert(cpu_is_stopped(env) || qemu_cpu_self(env)); + ret = kvm_getput_regs(env, 1); if (ret < 0) return ret; @@ -991,6 +993,8 @@ int kvm_arch_get_registers(CPUState *env) { int ret; + assert(cpu_is_stopped(env) || qemu_cpu_self(env)); + ret = kvm_getput_regs(env, 0); if (ret < 0) return ret; |