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s390x/pci: make S390PCIIOMMU inherit Object 

Currently S390PCIIOMMU is a normal struct. Let's make it inherit Object
in order to take advantage of QOM. In addition, we move some stuff
related to IOMMU from S390PCIBusDevice to S390PCIIOMMU.

Signed-off-by: Yi Min Zhao <zyimin@linux.vnet.ibm.com>
Acked-by: Pierre Morel <pmorel@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
master
Yi Min Zhao 2016-12-08 13:02:24 +08:00 committed by Cornelia Huck
parent 4cbd6c41fa
commit de91ea92e9
4 changed files with 71 additions and 53 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

52
hw/s390x/s390-pci-bus.c
View File

@ -187,8 +187,8 @@ void s390_pci_sclp_deconfigure(SCCB *sccb)
if (pbdev->summary_ind) {
pci_dereg_irqs(pbdev);
}
if (pbdev->iommu_enabled) {
pci_dereg_ioat(pbdev);
if (pbdev->iommu->enabled) {
pci_dereg_ioat(pbdev->iommu);
}
pbdev->state = ZPCI_FS_STANDBY;
rc = SCLP_RC_NORMAL_COMPLETION;
@ -377,12 +377,12 @@ out:
return pte;
}
static IOMMUTLBEntry s390_translate_iommu(MemoryRegion *iommu, hwaddr addr,
static IOMMUTLBEntry s390_translate_iommu(MemoryRegion *mr, hwaddr addr,
bool is_write)
{
uint64_t pte;
uint32_t flags;
S390PCIBusDevice *pbdev = container_of(iommu, S390PCIBusDevice, iommu_mr);
S390PCIIOMMU *iommu = container_of(mr, S390PCIIOMMU, iommu_mr);
IOMMUTLBEntry ret = {
.target_as = &address_space_memory,
.iova = 0,
@ -391,10 +391,10 @@ static IOMMUTLBEntry s390_translate_iommu(MemoryRegion *iommu, hwaddr addr,
.perm = IOMMU_NONE,
};
switch (pbdev->state) {
switch (iommu->pbdev->state) {
case ZPCI_FS_ENABLED:
case ZPCI_FS_BLOCKED:
if (!pbdev->iommu_enabled) {
if (!iommu->enabled) {
return ret;
}
break;
@ -404,11 +404,11 @@ static IOMMUTLBEntry s390_translate_iommu(MemoryRegion *iommu, hwaddr addr,
DPRINTF("iommu trans addr 0x%" PRIx64 "\n", addr);
if (addr < pbdev->pba || addr > pbdev->pal) {
if (addr < iommu->pba || addr > iommu->pal) {
return ret;
}
pte = s390_guest_io_table_walk(s390_pci_get_table_origin(pbdev->g_iota),
pte = s390_guest_io_table_walk(s390_pci_get_table_origin(iommu->g_iota),
addr);
if (!pte) {
return ret;
@ -503,19 +503,21 @@ static const MemoryRegionOps s390_msi_ctrl_ops = {
.endianness = DEVICE_LITTLE_ENDIAN,
};
void s390_pci_iommu_enable(S390PCIBusDevice *pbdev)
void s390_pci_iommu_enable(S390PCIIOMMU *iommu)
{
memory_region_init_iommu(&pbdev->iommu_mr, OBJECT(&pbdev->iommu->mr),
&s390_iommu_ops, "iommu-s390", pbdev->pal + 1);
memory_region_add_subregion(&pbdev->iommu->mr, 0, &pbdev->iommu_mr);
pbdev->iommu_enabled = true;
char *name = g_strdup_printf("iommu-s390-%04x", iommu->pbdev->uid);
memory_region_init_iommu(&iommu->iommu_mr, OBJECT(&iommu->mr),
&s390_iommu_ops, name, iommu->pal + 1);
iommu->enabled = true;
memory_region_add_subregion(&iommu->mr, 0, &iommu->iommu_mr);
g_free(name);
}
void s390_pci_iommu_disable(S390PCIBusDevice *pbdev)
void s390_pci_iommu_disable(S390PCIIOMMU *iommu)
{
memory_region_del_subregion(&pbdev->iommu->mr, &pbdev->iommu_mr);
object_unparent(OBJECT(&pbdev->iommu_mr));
pbdev->iommu_enabled = false;
iommu->enabled = false;
memory_region_del_subregion(&iommu->mr, &iommu->iommu_mr);
object_unparent(OBJECT(&iommu->iommu_mr));
}
static void s390_pcihost_init_as(S390pciState *s)
@ -660,6 +662,7 @@ static void s390_pcihost_hot_plug(HotplugHandler *hotplug_dev,
pbdev->pdev = pdev;
pbdev->iommu = s->iommu[PCI_SLOT(pdev->devfn)];
pbdev->iommu->pbdev = pbdev;
pbdev->state = ZPCI_FS_STANDBY;
s390_pci_msix_init(pbdev);
@ -692,8 +695,8 @@ static void s390_pcihost_timer_cb(void *opaque)
if (pbdev->summary_ind) {
pci_dereg_irqs(pbdev);
}
if (pbdev->iommu_enabled) {
pci_dereg_ioat(pbdev);
if (pbdev->iommu->enabled) {
pci_dereg_ioat(pbdev->iommu);
}
pbdev->state = ZPCI_FS_STANDBY;
@ -877,8 +880,8 @@ static void s390_pci_device_reset(DeviceState *dev)
if (pbdev->summary_ind) {
pci_dereg_irqs(pbdev);
}
if (pbdev->iommu_enabled) {
pci_dereg_ioat(pbdev);
if (pbdev->iommu->enabled) {
pci_dereg_ioat(pbdev->iommu);
}
pbdev->fmb_addr = 0;
@ -944,11 +947,18 @@ static const TypeInfo s390_pci_device_info = {
.class_init = s390_pci_device_class_init,
};
static TypeInfo s390_pci_iommu_info = {
.name = TYPE_S390_PCI_IOMMU,
.parent = TYPE_OBJECT,
.instance_size = sizeof(S390PCIIOMMU),
};
static void s390_pci_register_types(void)
{
type_register_static(&s390_pcihost_info);
type_register_static(&s390_pcibus_info);
type_register_static(&s390_pci_device_info);
type_register_static(&s390_pci_iommu_info);
}
type_init(s390_pci_register_types)

20
hw/s390x/s390-pci-bus.h
View File

@ -23,6 +23,7 @@
#define TYPE_S390_PCI_HOST_BRIDGE "s390-pcihost"
#define TYPE_S390_PCI_BUS "s390-pcibus"
#define TYPE_S390_PCI_DEVICE "zpci"
#define TYPE_S390_PCI_IOMMU "s390-pci-iommu"
#define FH_MASK_ENABLE 0x80000000
#define FH_MASK_INSTANCE 0x7f000000
#define FH_MASK_SHM 0x00ff0000
@ -42,6 +43,8 @@
OBJECT_CHECK(S390PCIBus, (obj), TYPE_S390_PCI_BUS)
#define S390_PCI_DEVICE(obj) \
OBJECT_CHECK(S390PCIBusDevice, (obj), TYPE_S390_PCI_DEVICE)
#define S390_PCI_IOMMU(obj) \
OBJECT_CHECK(S390PCIIOMMU, (obj), TYPE_S390_PCI_IOMMU)
#define HP_EVENT_TO_CONFIGURED 0x0301
#define HP_EVENT_RESERVED_TO_STANDBY 0x0302
@ -258,24 +261,28 @@ typedef struct S390MsixInfo {
uint32_t pba_offset;
} S390MsixInfo;
typedef struct S390PCIBusDevice S390PCIBusDevice;
typedef struct S390PCIIOMMU {
Object parent_obj;
S390PCIBusDevice *pbdev;
AddressSpace as;
MemoryRegion mr;
MemoryRegion iommu_mr;
bool enabled;
uint64_t g_iota;
uint64_t pba;
uint64_t pal;
} S390PCIIOMMU;
typedef struct S390PCIBusDevice {
DeviceState qdev;
PCIDevice *pdev;
ZpciState state;
bool iommu_enabled;
char *target;
uint16_t uid;
uint32_t fh;
uint32_t fid;
bool fid_defined;
uint64_t g_iota;
uint64_t pba;
uint64_t pal;
uint64_t fmb_addr;
uint8_t isc;
uint16_t noi;
@ -283,7 +290,6 @@ typedef struct S390PCIBusDevice {
S390MsixInfo msix;
AdapterRoutes routes;
S390PCIIOMMU *iommu;
MemoryRegion iommu_mr;
MemoryRegion msix_notify_mr;
IndAddr *summary_ind;
IndAddr *indicator;
@ -306,8 +312,8 @@ 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_pci_iommu_enable(S390PCIBusDevice *pbdev);
void s390_pci_iommu_disable(S390PCIBusDevice *pbdev);
void s390_pci_iommu_enable(S390PCIIOMMU *iommu);
void s390_pci_iommu_disable(S390PCIIOMMU *iommu);
void s390_pci_generate_error_event(uint16_t pec, uint32_t fh, uint32_t fid,
uint64_t faddr, uint32_t e);
S390PCIBusDevice *s390_pci_find_dev_by_idx(uint32_t idx);

50
hw/s390x/s390-pci-inst.c
View File

@ -555,6 +555,7 @@ int rpcit_service_call(S390CPU *cpu, uint8_t r1, uint8_t r2)
CPUS390XState *env = &cpu->env;
uint32_t fh;
S390PCIBusDevice *pbdev;
S390PCIIOMMU *iommu;
hwaddr start, end;
IOMMUTLBEntry entry;
MemoryRegion *mr;
@ -597,7 +598,8 @@ int rpcit_service_call(S390CPU *cpu, uint8_t r1, uint8_t r2)
break;
}
if (!pbdev->g_iota) {
iommu = pbdev->iommu;
if (!iommu->g_iota) {
pbdev->state = ZPCI_FS_ERROR;
setcc(cpu, ZPCI_PCI_LS_ERR);
s390_set_status_code(env, r1, ZPCI_PCI_ST_INSUF_RES);
@ -606,7 +608,7 @@ int rpcit_service_call(S390CPU *cpu, uint8_t r1, uint8_t r2)
goto out;
}
if (end < pbdev->pba || start > pbdev->pal) {
if (end < iommu->pba || start > iommu->pal) {
pbdev->state = ZPCI_FS_ERROR;
setcc(cpu, ZPCI_PCI_LS_ERR);
s390_set_status_code(env, r1, ZPCI_PCI_ST_INSUF_RES);
@ -615,7 +617,7 @@ int rpcit_service_call(S390CPU *cpu, uint8_t r1, uint8_t r2)
goto out;
}
mr = &pbdev->iommu_mr;
mr = &iommu->iommu_mr;
while (start < end) {
entry = mr->iommu_ops->translate(mr, start, 0);
@ -783,7 +785,7 @@ int pci_dereg_irqs(S390PCIBusDevice *pbdev)
return 0;
}
static int reg_ioat(CPUS390XState *env, S390PCIBusDevice *pbdev, ZpciFib fib)
static int reg_ioat(CPUS390XState *env, S390PCIIOMMU *iommu, ZpciFib fib)
{
uint64_t pba = ldq_p(&fib.pba);
uint64_t pal = ldq_p(&fib.pal);
@ -803,21 +805,21 @@ static int reg_ioat(CPUS390XState *env, S390PCIBusDevice *pbdev, ZpciFib fib)
return -EINVAL;
}
pbdev->pba = pba;
pbdev->pal = pal;
pbdev->g_iota = g_iota;
iommu->pba = pba;
iommu->pal = pal;
iommu->g_iota = g_iota;
s390_pci_iommu_enable(pbdev);
s390_pci_iommu_enable(iommu);
return 0;
}
void pci_dereg_ioat(S390PCIBusDevice *pbdev)
void pci_dereg_ioat(S390PCIIOMMU *iommu)
{
s390_pci_iommu_disable(pbdev);
pbdev->pba = 0;
pbdev->pal = 0;
pbdev->g_iota = 0;
s390_pci_iommu_disable(iommu);
iommu->pba = 0;
iommu->pal = 0;
iommu->g_iota = 0;
}
int mpcifc_service_call(S390CPU *cpu, uint8_t r1, uint64_t fiba, uint8_t ar)
@ -892,10 +894,10 @@ int mpcifc_service_call(S390CPU *cpu, uint8_t r1, uint64_t fiba, uint8_t ar)
if (dmaas != 0) {
cc = ZPCI_PCI_LS_ERR;
s390_set_status_code(env, r1, ZPCI_MOD_ST_DMAAS_INVAL);
} else if (pbdev->iommu_enabled) {
} else if (pbdev->iommu->enabled) {
cc = ZPCI_PCI_LS_ERR;
s390_set_status_code(env, r1, ZPCI_MOD_ST_SEQUENCE);
} else if (reg_ioat(env, pbdev, fib)) {
} else if (reg_ioat(env, pbdev->iommu, fib)) {
cc = ZPCI_PCI_LS_ERR;
s390_set_status_code(env, r1, ZPCI_MOD_ST_INSUF_RES);
}
@ -904,23 +906,23 @@ int mpcifc_service_call(S390CPU *cpu, uint8_t r1, uint64_t fiba, uint8_t ar)
if (dmaas != 0) {
cc = ZPCI_PCI_LS_ERR;
s390_set_status_code(env, r1, ZPCI_MOD_ST_DMAAS_INVAL);
} else if (!pbdev->iommu_enabled) {
} else if (!pbdev->iommu->enabled) {
cc = ZPCI_PCI_LS_ERR;
s390_set_status_code(env, r1, ZPCI_MOD_ST_SEQUENCE);
} else {
pci_dereg_ioat(pbdev);
pci_dereg_ioat(pbdev->iommu);
}
break;
case ZPCI_MOD_FC_REREG_IOAT:
if (dmaas != 0) {
cc = ZPCI_PCI_LS_ERR;
s390_set_status_code(env, r1, ZPCI_MOD_ST_DMAAS_INVAL);
} else if (!pbdev->iommu_enabled) {
} else if (!pbdev->iommu->enabled) {
cc = ZPCI_PCI_LS_ERR;
s390_set_status_code(env, r1, ZPCI_MOD_ST_SEQUENCE);
} else {
pci_dereg_ioat(pbdev);
if (reg_ioat(env, pbdev, fib)) {
pci_dereg_ioat(pbdev->iommu);
if (reg_ioat(env, pbdev->iommu, fib)) {
cc = ZPCI_PCI_LS_ERR;
s390_set_status_code(env, r1, ZPCI_MOD_ST_INSUF_RES);
}
@ -1015,7 +1017,7 @@ int stpcifc_service_call(S390CPU *cpu, uint8_t r1, uint64_t fiba, uint8_t ar)
fib.fc |= 0x40;
case ZPCI_FS_ENABLED:
fib.fc |= 0x80;
if (pbdev->iommu_enabled) {
if (pbdev->iommu->enabled) {
fib.fc |= 0x10;
}
if (!(fh & FH_MASK_ENABLE)) {
@ -1028,9 +1030,9 @@ int stpcifc_service_call(S390CPU *cpu, uint8_t r1, uint64_t fiba, uint8_t ar)
return 0;
}
stq_p(&fib.pba, pbdev->pba);
stq_p(&fib.pal, pbdev->pal);
stq_p(&fib.iota, pbdev->g_iota);
stq_p(&fib.pba, pbdev->iommu->pba);
stq_p(&fib.pal, pbdev->iommu->pal);
stq_p(&fib.iota, pbdev->iommu->g_iota);
stq_p(&fib.aibv, pbdev->routes.adapter.ind_addr);
stq_p(&fib.aisb, pbdev->routes.adapter.summary_addr);
stq_p(&fib.fmb_addr, pbdev->fmb_addr);

2
hw/s390x/s390-pci-inst.h
View File

@ -292,7 +292,7 @@ typedef struct ZpciFib {
} QEMU_PACKED ZpciFib;
int pci_dereg_irqs(S390PCIBusDevice *pbdev);
void pci_dereg_ioat(S390PCIBusDevice *pbdev);
void pci_dereg_ioat(S390PCIIOMMU *iommu);
int clp_service_call(S390CPU *cpu, uint8_t r2);
int pcilg_service_call(S390CPU *cpu, uint8_t r1, uint8_t r2);
int pcistg_service_call(S390CPU *cpu, uint8_t r1, uint8_t r2);