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KVM: Move vcpu_load to arch-specific kvm_arch_vcpu_ioctl_get_regs

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

Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
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 21:35:26 +01:00 committed by Paolo Bonzini
parent accb757d79
commit 1fc9b76b3d
6 changed files with 14 additions and 2 deletions
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3
arch/mips/kvm/mips.c
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@ -1162,6 +1162,8 @@ int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
{
int i;
vcpu_load(vcpu);
for (i = 0; i < ARRAY_SIZE(vcpu->arch.gprs); i++)
regs->gpr[i] = vcpu->arch.gprs[i];
@ -1169,6 +1171,7 @@ int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
regs->lo = vcpu->arch.lo;
regs->pc = vcpu->arch.pc;
vcpu_put(vcpu);
return 0;
}

3
arch/powerpc/kvm/book3s.c
View File

@ -497,6 +497,8 @@ int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
{
int i;
vcpu_load(vcpu);
regs->pc = kvmppc_get_pc(vcpu);
regs->cr = kvmppc_get_cr(vcpu);
regs->ctr = kvmppc_get_ctr(vcpu);
@ -518,6 +520,7 @@ int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
for (i = 0; i < ARRAY_SIZE(regs->gpr); i++)
regs->gpr[i] = kvmppc_get_gpr(vcpu, i);
vcpu_put(vcpu);
return 0;
}

3
arch/powerpc/kvm/booke.c
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@ -1431,6 +1431,8 @@ int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
{
int i;
vcpu_load(vcpu);
regs->pc = vcpu->arch.pc;
regs->cr = kvmppc_get_cr(vcpu);
regs->ctr = vcpu->arch.ctr;
@ -1452,6 +1454,7 @@ int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
for (i = 0; i < ARRAY_SIZE(regs->gpr); i++)
regs->gpr[i] = kvmppc_get_gpr(vcpu, i);
vcpu_put(vcpu);
return 0;
}

2
arch/s390/kvm/kvm-s390.c
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@ -2715,7 +2715,9 @@ int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
{
vcpu_load(vcpu);
memcpy(&regs->gprs, &vcpu->run->s.regs.gprs, sizeof(regs->gprs));
vcpu_put(vcpu);
return 0;
}

3
arch/x86/kvm/x86.c
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@ -7334,6 +7334,8 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
{
vcpu_load(vcpu);
if (vcpu->arch.emulate_regs_need_sync_to_vcpu) {
/*
* We are here if userspace calls get_regs() in the middle of
@ -7367,6 +7369,7 @@ int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
regs->rip = kvm_rip_read(vcpu);
regs->rflags = kvm_get_rflags(vcpu);
vcpu_put(vcpu);
return 0;
}

2
virt/kvm/kvm_main.c
View File

@ -2583,9 +2583,7 @@ static long kvm_vcpu_ioctl(struct file *filp,
kvm_regs = kzalloc(sizeof(struct kvm_regs), GFP_KERNEL);
if (!kvm_regs)
goto out;
vcpu_load(vcpu);
r = kvm_arch_vcpu_ioctl_get_regs(vcpu, kvm_regs);
vcpu_put(vcpu);
if (r)
goto out_free1;
r = -EFAULT;