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kvm: x86: make kvm_{load|put}_guest_fpu() static 

The functions
	kvm_load_guest_fpu()
	kvm_put_guest_fpu()

are only used locally, make them static. This requires also that both
functions are moved because they are used before their implementation.
Those functions were exported (via EXPORT_SYMBOL) before commit
e5bb40251a ("KVM: Drop kvm_{load,put}_guest_fpu() exports").

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Sebastian Andrzej Siewior 2018-09-12 15:33:45 +02:00 committed by Paolo Bonzini
parent a1efa9b700
commit 822f312d47
2 changed files with 23 additions and 25 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

46
arch/x86/kvm/x86.c
View File

@ -7835,6 +7835,29 @@ static int complete_emulated_mmio(struct kvm_vcpu *vcpu)
return 0; return 0;
} }
/* Swap (qemu) user FPU context for the guest FPU context. */
static void kvm_load_guest_fpu(struct kvm_vcpu *vcpu)
{
preempt_disable();
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,
~XFEATURE_MASK_PKRU);
preempt_enable();
trace_kvm_fpu(1);
}
/* When vcpu_run ends, restore user space FPU context. */
static void kvm_put_guest_fpu(struct kvm_vcpu *vcpu)
{
preempt_disable();
copy_fpregs_to_fpstate(&vcpu->arch.guest_fpu);
copy_kernel_to_fpregs(&vcpu->arch.user_fpu.state);
preempt_enable();
++vcpu->stat.fpu_reload;
trace_kvm_fpu(0);
}
int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run) int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
{ {
int r; int r;
@ -8412,29 +8435,6 @@ static void fx_init(struct kvm_vcpu *vcpu)
vcpu->arch.cr0 |= X86_CR0_ET; vcpu->arch.cr0 |= X86_CR0_ET;
} }
/* Swap (qemu) user FPU context for the guest FPU context. */
void kvm_load_guest_fpu(struct kvm_vcpu *vcpu)
{
preempt_disable();
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,
~XFEATURE_MASK_PKRU);
preempt_enable();
trace_kvm_fpu(1);
}
/* When vcpu_run ends, restore user space FPU context. */
void kvm_put_guest_fpu(struct kvm_vcpu *vcpu)
{
preempt_disable();
copy_fpregs_to_fpstate(&vcpu->arch.guest_fpu);
copy_kernel_to_fpregs(&vcpu->arch.user_fpu.state);
preempt_enable();
++vcpu->stat.fpu_reload;
trace_kvm_fpu(0);
}
void kvm_arch_vcpu_free(struct kvm_vcpu *vcpu) void kvm_arch_vcpu_free(struct kvm_vcpu *vcpu)
{ {
void *wbinvd_dirty_mask = vcpu->arch.wbinvd_dirty_mask; void *wbinvd_dirty_mask = vcpu->arch.wbinvd_dirty_mask;

2
include/linux/kvm_host.h
View File

@ -733,8 +733,6 @@ bool kvm_vcpu_wake_up(struct kvm_vcpu *vcpu);
void kvm_vcpu_kick(struct kvm_vcpu *vcpu); void kvm_vcpu_kick(struct kvm_vcpu *vcpu);
int kvm_vcpu_yield_to(struct kvm_vcpu *target); int kvm_vcpu_yield_to(struct kvm_vcpu *target);
void kvm_vcpu_on_spin(struct kvm_vcpu *vcpu, bool usermode_vcpu_not_eligible); void kvm_vcpu_on_spin(struct kvm_vcpu *vcpu, bool usermode_vcpu_not_eligible);
void kvm_load_guest_fpu(struct kvm_vcpu *vcpu);
void kvm_put_guest_fpu(struct kvm_vcpu *vcpu);
void kvm_flush_remote_tlbs(struct kvm *kvm); void kvm_flush_remote_tlbs(struct kvm *kvm);
void kvm_reload_remote_mmus(struct kvm *kvm); void kvm_reload_remote_mmus(struct kvm *kvm);