Commit 3911b65e authored by Paolo Bonzini's avatar Paolo Bonzini
Browse files

Revert "KVM: x86: Add a WARN on TIF_NEED_FPU_LOAD in kvm_load_guest_fpu()" 



This reverts commit 95145c25.
The next few patches will fix the issue so the warning is not
needed anymore; revert it separately to simplify application to
stable kernels.

Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
parent 3ce4dc17

arch/x86/kvm/x86.c

+0 −7
Original line number Diff line number Diff line
@@ -8563,13 +8563,6 @@ static void kvm_load_guest_fpu(struct kvm_vcpu *vcpu) 
{

	fpregs_lock();



	/*

	 * Reloading userspace's FPU is handled by kvm_arch_vcpu_load(), both

	 * for direct calls from userspace (via vcpu_load()) and if this task

	 * is preempted (via kvm_sched_in()) between vcpu_load() and now.

	 */

	WARN_ON_ONCE(test_thread_flag(TIF_NEED_FPU_LOAD));



	copy_fpregs_to_fpstate(vcpu->arch.user_fpu);

	/* PKRU is separately restored in kvm_x86_ops->run.  */

	__copy_kernel_to_fpregs(&vcpu->arch.guest_fpu->state,