diff options
| author | Yi Min Zhao <zyimin@linux.vnet.ibm.com> | 2016-05-04 15:06:44 +0800 |
|---|---|---|
| committer | Cornelia Huck <cornelia.huck@de.ibm.com> | 2016-05-17 15:50:29 +0200 |
| commit | 715838881fdcab07aff26ce2f5fd37a4af8f243f (patch) | |
| tree | 05af0163de8d04f2c549b13ad162a8ab5ad64bae /hw/s390x | |
| parent | 8f5cb69313acac264201289c08f255f0ddac71a4 (diff) | |
s390x/pci: separate s390_pcihost_iommu_configure function
Split s390_pcihost_iommu_configure() into separate functions for
configuring and deconfiguring in order to make the code more readable.
Signed-off-by: Yi Min Zhao <zyimin@linux.vnet.ibm.com>
Reviewed-by: Pierre Morel <pmorel@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Diffstat (limited to 'hw/s390x')
| -rw-r--r-- | hw/s390x/s390-pci-bus.c | 21 | ||||
| -rw-r--r-- | hw/s390x/s390-pci-bus.h | 3 | ||||
| -rw-r--r-- | hw/s390x/s390-pci-inst.c | 5 |
3 files changed, 16 insertions, 13 deletions
diff --git a/hw/s390x/s390-pci-bus.c b/hw/s390x/s390-pci-bus.c index c749d00de8..b934fc80c2 100644 --- a/hw/s390x/s390-pci-bus.c +++ b/hw/s390x/s390-pci-bus.c @@ -478,19 +478,22 @@ static const MemoryRegionOps s390_msi_ctrl_ops = { .endianness = DEVICE_LITTLE_ENDIAN, }; -void s390_pcihost_iommu_configure(S390PCIBusDevice *pbdev, bool enable) +void s390_pci_iommu_enable(S390PCIBusDevice *pbdev) { pbdev->configured = false; + uint64_t size = pbdev->pal - pbdev->pba + 1; - if (enable) { - uint64_t size = pbdev->pal - pbdev->pba + 1; - memory_region_init_iommu(&pbdev->iommu_mr, OBJECT(&pbdev->mr), - &s390_iommu_ops, "iommu-s390", size); - memory_region_add_subregion(&pbdev->mr, pbdev->pba, &pbdev->iommu_mr); - } else { - memory_region_del_subregion(&pbdev->mr, &pbdev->iommu_mr); - } + memory_region_init_iommu(&pbdev->iommu_mr, OBJECT(&pbdev->mr), + &s390_iommu_ops, "iommu-s390", size); + memory_region_add_subregion(&pbdev->mr, pbdev->pba, &pbdev->iommu_mr); + pbdev->configured = true; +} +void s390_pci_iommu_disable(S390PCIBusDevice *pbdev) +{ + pbdev->configured = false; + memory_region_del_subregion(&pbdev->mr, &pbdev->iommu_mr); + object_unparent(OBJECT(&pbdev->iommu_mr)); pbdev->configured = true; } diff --git a/hw/s390x/s390-pci-bus.h b/hw/s390x/s390-pci-bus.h index d6e17d2eeb..426f690bba 100644 --- a/hw/s390x/s390-pci-bus.h +++ b/hw/s390x/s390-pci-bus.h @@ -249,7 +249,8 @@ int chsc_sei_nt2_get_event(void *res); int chsc_sei_nt2_have_event(void); void s390_pci_sclp_configure(SCCB *sccb); void s390_pci_sclp_deconfigure(SCCB *sccb); -void s390_pcihost_iommu_configure(S390PCIBusDevice *pbdev, bool enable); +void s390_pci_iommu_enable(S390PCIBusDevice *pbdev); +void s390_pci_iommu_disable(S390PCIBusDevice *pbdev); S390PCIBusDevice *s390_pci_find_dev_by_idx(uint32_t idx); S390PCIBusDevice *s390_pci_find_dev_by_fh(uint32_t fh); S390PCIBusDevice *s390_pci_find_dev_by_fid(uint32_t fid); diff --git a/hw/s390x/s390-pci-inst.c b/hw/s390x/s390-pci-inst.c index 90d9fda77c..eb03f480c4 100644 --- a/hw/s390x/s390-pci-inst.c +++ b/hw/s390x/s390-pci-inst.c @@ -705,18 +705,17 @@ static int reg_ioat(CPUS390XState *env, S390PCIBusDevice *pbdev, ZpciFib fib) pbdev->pal = pal; pbdev->g_iota = g_iota; - s390_pcihost_iommu_configure(pbdev, true); + s390_pci_iommu_enable(pbdev); return 0; } static void dereg_ioat(S390PCIBusDevice *pbdev) { + s390_pci_iommu_disable(pbdev); pbdev->pba = 0; pbdev->pal = 0; pbdev->g_iota = 0; - - s390_pcihost_iommu_configure(pbdev, false); } int mpcifc_service_call(S390CPU *cpu, uint8_t r1, uint64_t fiba, uint8_t ar) |