[PATCH 4.4 31/48] KVM: x86: remove eager_fpu field of struct kvm_vcpu_arch

Greg Kroah-Hartman
2018-10-18T18:06:14Z

From: Paolo Bonzini <pbonzini@redhat.com>

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 | 1 -
arch/x86/kvm/cpuid.c | 3 +--
arch/x86/kvm/x86.c | 2 +-
3 files changed, 2 insertions(+), 4 deletions(-)

--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -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;
--- a/arch/x86/kvm/cpuid.c
+++ b/arch/x86/kvm/cpuid.c
@@ -104,8 +104,7 @@ int kvm_update_cpuid(struct kvm_vcpu *vc
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);

/*
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -7325,7 +7325,7 @@ void kvm_put_guest_fpu(struct kvm_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);
}