diff options
| author |   Paolo Bonzini <pbonzini@redhat.com> | 2020-01-18 22:29:46 +0100 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2020-01-27 19:59:46 +0100 |
| commit | 3911b65ee1d3e3fc5e3786b1f309dcad0e33f7fd (patch) | |
| tree | dbb4c2c3538ee0f71a621f0439359fe5e96b6912 | |
| parent | KVM: apic: short-circuit kvm_apic_accept_pic_intr() when pic intr is accepted (diff) | |
| download | linux-dev-3911b65ee1d3e3fc5e3786b1f309dcad0e33f7fd.tar.xz linux-dev-3911b65ee1d3e3fc5e3786b1f309dcad0e33f7fd.zip | |
Revert "KVM: x86: Add a WARN on TIF_NEED_FPU_LOAD in kvm_load_guest_fpu()"
This reverts commit 95145c25a78cc0a9d3cbc75708abde432310c5a1.
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: Paolo Bonzini <pbonzini@redhat.com>
| -rw-r--r-- | arch/x86/kvm/x86.c | 7 |
1 files changed, 0 insertions, 7 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 2b26400a3410..603a1f778dbe 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -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, |