Commit bec7156a authored Jul 22, 2019 by Jan Kiszka Committed by Paolo Bonzini Jul 24, 2019

i386/kvm: Do not sync nested state during runtime



Writing the nested state e.g. after a vmport access can invalidate
important parts of the kernel-internal state, and it is not needed as
well. So leave this out from KVM_PUT_RUNTIME_STATE.

Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Message-Id: <bdd53f40-4e60-f3ae-7ec6-162198214953@siemens.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

parent 9c5aad84

target/i386/kvm.c

+5 −5

Original line number	Diff line number	Diff line
		@@ -3563,12 +3563,12 @@ int kvm_arch_put_registers(CPUState *cpu, int level)

		assert(cpu_is_stopped(cpu) \|\| qemu_cpu_is_self(cpu));

		if (level >= KVM_PUT_RESET_STATE) {
		ret = kvm_put_nested_state(x86_cpu);
		if (ret < 0) {
		return ret;
		}

		if (level >= KVM_PUT_RESET_STATE) {
		ret = kvm_put_msr_feature_control(x86_cpu);
		if (ret < 0) {
		return ret;