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KVM: Move vcpu_load to arch-specific kvm_arch_vcpu_ioctl_get_fpu

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Move vcpu_load() and vcpu_put() into the architecture specific
implementations of kvm_arch_vcpu_ioctl_get_fpu().

Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Christoffer Dall 2017-12-04 21:35:34 +01:00 committed by Paolo Bonzini
parent 66b5656222
commit 1393123e1e
3 changed files with 9 additions and 4 deletions
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4
arch/s390/kvm/kvm-s390.c
View File

@ -2762,6 +2762,8 @@ int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu)
int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu)
{
vcpu_load(vcpu);
/* make sure we have the latest values */
save_fpu_regs();
if (MACHINE_HAS_VX)
@ -2770,6 +2772,8 @@ int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu)
else
memcpy(fpu->fprs, vcpu->run->s.regs.fprs, sizeof(fpu->fprs));
fpu->fpc = vcpu->run->s.regs.fpc;
vcpu_put(vcpu);
return 0;
}

7
arch/x86/kvm/x86.c
View File

@ -7702,9 +7702,11 @@ int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu,
int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu)
{
struct fxregs_state *fxsave =
&vcpu->arch.guest_fpu.state.fxsave;
struct fxregs_state *fxsave;
vcpu_load(vcpu);
fxsave = &vcpu->arch.guest_fpu.state.fxsave;
memcpy(fpu->fpr, fxsave->st_space, 128);
fpu->fcw = fxsave->cwd;
fpu->fsw = fxsave->swd;
@ -7714,6 +7716,7 @@ int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu)
fpu->last_dp = fxsave->rdp;
memcpy(fpu->xmm, fxsave->xmm_space, sizeof fxsave->xmm_space);
vcpu_put(vcpu);
return 0;
}

2
virt/kvm/kvm_main.c
View File

@ -2704,9 +2704,7 @@ out_free1:
r = -ENOMEM;
if (!fpu)
goto out;
vcpu_load(vcpu);
r = kvm_arch_vcpu_ioctl_get_fpu(vcpu, fpu);
vcpu_put(vcpu);
if (r)
goto out;
r = -EFAULT;