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KVM: move vcpu locking to dispatcher for generic vcpu ioctls

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All vcpu ioctls need to be locked, so instead of locking each one specifically
we lock at the generic dispatcher.

This patch only updates generic ioctls and leaves arch specific ioctls alone.

Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Avi Kivity
2010-05-13 11:25:04 +03:00
parent 1683b2416e
commit 2122ff5eab
7 changed files with 17 additions and 95 deletions
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16
arch/powerpc/kvm/book3s.c
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@@ -1047,8 +1047,6 @@ 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);
@@ -1069,8 +1067,6 @@ 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;
}
@@ -1078,8 +1074,6 @@ int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
{
int i;
vcpu_load(vcpu);
kvmppc_set_pc(vcpu, regs->pc);
kvmppc_set_cr(vcpu, regs->cr);
kvmppc_set_ctr(vcpu, regs->ctr);
@@ -1099,8 +1093,6 @@ int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
for (i = 0; i < ARRAY_SIZE(regs->gpr); i++)
kvmppc_set_gpr(vcpu, i, regs->gpr[i]);
vcpu_put(vcpu);
return 0;
}
@@ -1110,8 +1102,6 @@ int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu,
struct kvmppc_vcpu_book3s *vcpu3s = to_book3s(vcpu);
int i;
vcpu_load(vcpu);
sregs->pvr = vcpu->arch.pvr;
sregs->u.s.sdr1 = to_book3s(vcpu)->sdr1;
@@ -1131,8 +1121,6 @@ int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu,
}
}
vcpu_put(vcpu);
return 0;
}
@@ -1142,8 +1130,6 @@ int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
struct kvmppc_vcpu_book3s *vcpu3s = to_book3s(vcpu);
int i;
vcpu_load(vcpu);
kvmppc_set_pvr(vcpu, sregs->pvr);
vcpu3s->sdr1 = sregs->u.s.sdr1;
@@ -1171,8 +1157,6 @@ int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
/* Flush the MMU after messing with the segments */
kvmppc_mmu_pte_flush(vcpu, 0, 0);
vcpu_put(vcpu);
return 0;
}