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KVM: x86: remove eager_fpu field of struct kvm_vcpu_arch
authorPaolo Bonzini <pbonzini@redhat.com>
Tue, 8 Mar 2016 09:00:11 +0000 (10:00 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sat, 20 Oct 2018 07:52:37 +0000 (09:52 +0200)
commit 5a5fbdc0e3f1159a734f1890da60fce70e98271d upstream.

It is now equal to use_eager_fpu(), which simply tests a cpufeature bit.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Daniel Sangorrin <daniel.sangorrin@toshiba.co.jp>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
arch/x86/include/asm/kvm_host.h
arch/x86/kvm/cpuid.c
arch/x86/kvm/x86.c

index 74fda1a..3a37cdb 100644 (file)
@@ -439,7 +439,6 @@ struct kvm_vcpu_arch {
        struct kvm_mmu_memory_cache mmu_page_header_cache;
 
        struct fpu guest_fpu;
-       bool eager_fpu;
        u64 xcr0;
        u64 guest_supported_xcr0;
        u32 guest_xstate_size;
index 83d6369..7b4ea5e 100644 (file)
@@ -104,8 +104,7 @@ int kvm_update_cpuid(struct kvm_vcpu *vcpu)
        if (best && (best->eax & (F(XSAVES) | F(XSAVEC))))
                best->ebx = xstate_required_size(vcpu->arch.xcr0, true);
 
-       vcpu->arch.eager_fpu = use_eager_fpu();
-       if (vcpu->arch.eager_fpu)
+       if (use_eager_fpu())
                kvm_x86_ops->fpu_activate(vcpu);
 
        /*
index 53d43d2..660d8a0 100644 (file)
@@ -7325,7 +7325,7 @@ void kvm_put_guest_fpu(struct kvm_vcpu *vcpu)
         * Every 255 times fpu_counter rolls over to 0; a guest that uses
         * the FPU in bursts will revert to loading it on demand.
         */
-       if (!vcpu->arch.eager_fpu) {
+       if (!use_eager_fpu()) {
                if (++vcpu->fpu_counter < 5)
                        kvm_make_request(KVM_REQ_DEACTIVATE_FPU, vcpu);
        }