unsigned int offset = 0;
int ret = -EINVAL;
-
if (vgpu->failsafe) {
failsafe_emulate_mmio_rw(vgpu, pa, p_data, bytes, true);
return 0;
if (vgpu_gpa_is_aperture(vgpu, pa)) {
ret = vgpu_aperture_rw(vgpu, pa, p_data, bytes, true);
- mutex_unlock(&gvt->lock);
- return ret;
+ goto out;
}
if (atomic_read(&vgpu->gtt.n_tracked_guest_page)) {
ret, t->gfn, pa, *(u32 *)p_data,
bytes);
}
- mutex_unlock(&gvt->lock);
- return ret;
+ goto out;
}
}
p_data, bytes);
if (ret)
goto err;
- mutex_unlock(&gvt->lock);
- return ret;
+ goto out;
}
if (WARN_ON_ONCE(!reg_is_mmio(gvt, offset))) {
ret = intel_gvt_hypervisor_read_gpa(vgpu, pa, p_data, bytes);
- mutex_unlock(&gvt->lock);
- return ret;
+ goto out;
}
if (WARN_ON(!reg_is_mmio(gvt, offset + bytes - 1)))
goto err;
intel_gvt_mmio_set_accessed(gvt, offset);
- mutex_unlock(&gvt->lock);
- return 0;
+ ret = 0;
+ goto out;
+
err:
gvt_vgpu_err("fail to emulate MMIO read %08x len %d\n",
offset, bytes);
+out:
mutex_unlock(&gvt->lock);
return ret;
}
if (vgpu_gpa_is_aperture(vgpu, pa)) {
ret = vgpu_aperture_rw(vgpu, pa, p_data, bytes, false);
- mutex_unlock(&gvt->lock);
- return ret;
+ goto out;
}
if (atomic_read(&vgpu->gtt.n_tracked_guest_page)) {
ret, t->gfn, pa,
*(u32 *)p_data, bytes);
}
- mutex_unlock(&gvt->lock);
- return ret;
+ goto out;
}
}
p_data, bytes);
if (ret)
goto err;
- mutex_unlock(&gvt->lock);
- return ret;
+ goto out;
}
if (WARN_ON_ONCE(!reg_is_mmio(gvt, offset))) {
ret = intel_gvt_hypervisor_write_gpa(vgpu, pa, p_data, bytes);
- mutex_unlock(&gvt->lock);
- return ret;
+ goto out;
}
ret = intel_vgpu_mmio_reg_rw(vgpu, offset, p_data, bytes, false);
goto err;
intel_gvt_mmio_set_accessed(gvt, offset);
- mutex_unlock(&gvt->lock);
- return 0;
+ ret = 0;
+ goto out;
err:
gvt_vgpu_err("fail to emulate MMIO write %08x len %d\n", offset,
bytes);
+out:
mutex_unlock(&gvt->lock);
return ret;
}