* [Qemu-devel] [PATCH qemu v9 0/2] memory/iommu: QOM'fy IOMMU MemoryRegion
@ 2017-07-11 3:56 Alexey Kardashevskiy
2017-07-11 3:56 ` [Qemu-devel] [PATCH qemu v9 1/2] " Alexey Kardashevskiy
` (2 more replies)
0 siblings, 3 replies; 8+ messages in thread
From: Alexey Kardashevskiy @ 2017-07-11 3:56 UTC (permalink / raw)
To: qemu-devel
Cc: Alexey Kardashevskiy, David Gibson, Philippe Mathieu-Daudé,
Peter Xu, Alex Williamson, Christian Borntraeger, Cornelia Huck,
Paolo Bonzini, qemu-ppc
Here is a couple of patches to QOM'fy IOMMU memory regions.
I have made them in order to proceed with in-kernel TCE stuff acceleration
enablement which sort of depends on sPAPR IOMMU MR being QOM'ed.
This is based on sha1
3f0602927b Peter Maydell "Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20170613' into staging".
Please comment. Thanks.
Changes:
v9:
* reworked 2/2 to follow the existing function naming style
v8:
* now 2 patches
This is based on sha1
b113658675 Peter Maydell "Merge remote-tracking branch 'remotes/borntraeger/tags/s390x-20170706' into staging".
Please comment. Thanks.
Alexey Kardashevskiy (2):
memory/iommu: QOM'fy IOMMU MemoryRegion
memory/iommu: introduce IOMMUMemoryRegionClass
hw/i386/amd_iommu.h | 5 +-
hw/s390x/s390-pci-bus.h | 3 +-
include/exec/memory.h | 94 +++++++++++++++++++++++++----------
include/hw/i386/intel_iommu.h | 5 +-
include/hw/mips/mips.h | 2 +-
include/hw/ppc/spapr.h | 7 ++-
include/hw/vfio/vfio-common.h | 2 +-
include/qemu/typedefs.h | 1 +
exec.c | 14 +++---
hw/alpha/typhoon.c | 31 +++++++++---
hw/dma/rc4030.c | 34 +++++++++----
hw/i386/amd_iommu.c | 33 +++++++++---
hw/i386/intel_iommu.c | 42 +++++++++++-----
hw/mips/mips_jazz.c | 2 +-
hw/pci-host/apb.c | 29 ++++++++---
hw/ppc/spapr_iommu.c | 42 ++++++++++------
hw/s390x/s390-pci-bus.c | 29 +++++++----
hw/s390x/s390-pci-inst.c | 11 ++--
hw/vfio/common.c | 12 +++--
hw/vfio/spapr.c | 3 +-
memory.c | 113 ++++++++++++++++++++++++++++--------------
21 files changed, 355 insertions(+), 159 deletions(-)
--
2.11.0
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Qemu-devel] [PATCH qemu v9 1/2] memory/iommu: QOM'fy IOMMU MemoryRegion
2017-07-11 3:56 [Qemu-devel] [PATCH qemu v9 0/2] memory/iommu: QOM'fy IOMMU MemoryRegion Alexey Kardashevskiy
@ 2017-07-11 3:56 ` Alexey Kardashevskiy
2017-07-12 10:22 ` Cornelia Huck
2017-07-11 3:56 ` [Qemu-devel] [PATCH qemu v9 2/2] memory/iommu: introduce IOMMUMemoryRegionClass Alexey Kardashevskiy
2017-07-12 13:20 ` [Qemu-devel] [PATCH qemu v9 0/2] memory/iommu: QOM'fy IOMMU MemoryRegion Cornelia Huck
2 siblings, 1 reply; 8+ messages in thread
From: Alexey Kardashevskiy @ 2017-07-11 3:56 UTC (permalink / raw)
To: qemu-devel
Cc: Alexey Kardashevskiy, David Gibson, Philippe Mathieu-Daudé,
Peter Xu, Alex Williamson, Christian Borntraeger, Cornelia Huck,
Paolo Bonzini, qemu-ppc
This defines new QOM object - IOMMUMemoryRegion - with MemoryRegion
as a parent.
This moves IOMMU-related fields from MR to IOMMU MR. However to avoid
dymanic QOM casting in fast path (address_space_translate, etc),
this adds an @is_iommu boolean flag to MR and provides new helper to
do simple cast to IOMMU MR - memory_region_get_iommu. The flag
is set in the instance init callback. This defines
memory_region_is_iommu as memory_region_get_iommu()!=NULL.
This switches MemoryRegion to IOMMUMemoryRegion in most places except
the ones where MemoryRegion may be an alias.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
---
Changes:
v9:
* added rb:David
v8:
* moved is_iommu flag closer to the beginning of the MemoryRegion struct
* removed memory_region_init_iommu_type()
v7:
* rebased on top of the current upstream
v6:
* s/\<iommumr\>/iommu_mr/g
v5:
* fixed sparc64, first time in many years did run "./configure" without
--target-list :-D Sorry for the noise though :(
v4:
* fixed alpha, mips64el and sparc
v3:
* rebased on sha1 81b2d5ceb0
v2:
* added mr->is_iommu
* updated i386/x86_64/s390/sun
---
hw/s390x/s390-pci-bus.h | 2 +-
include/exec/memory.h | 55 ++++++++++++++--------
include/hw/i386/intel_iommu.h | 2 +-
include/hw/mips/mips.h | 2 +-
include/hw/ppc/spapr.h | 3 +-
include/hw/vfio/vfio-common.h | 2 +-
include/qemu/typedefs.h | 1 +
exec.c | 12 ++---
hw/alpha/typhoon.c | 8 ++--
hw/dma/rc4030.c | 8 ++--
hw/i386/amd_iommu.c | 9 ++--
hw/i386/intel_iommu.c | 17 +++----
hw/mips/mips_jazz.c | 2 +-
hw/pci-host/apb.c | 6 +--
hw/ppc/spapr_iommu.c | 16 ++++---
hw/s390x/s390-pci-bus.c | 6 +--
hw/s390x/s390-pci-inst.c | 8 ++--
hw/vfio/common.c | 12 +++--
hw/vfio/spapr.c | 3 +-
memory.c | 105 ++++++++++++++++++++++++++++--------------
20 files changed, 170 insertions(+), 109 deletions(-)
diff --git a/hw/s390x/s390-pci-bus.h b/hw/s390x/s390-pci-bus.h
index cf142a3e68..6a599ed353 100644
--- a/hw/s390x/s390-pci-bus.h
+++ b/hw/s390x/s390-pci-bus.h
@@ -266,7 +266,7 @@ typedef struct S390PCIIOMMU {
S390PCIBusDevice *pbdev;
AddressSpace as;
MemoryRegion mr;
- MemoryRegion iommu_mr;
+ IOMMUMemoryRegion iommu_mr;
bool enabled;
uint64_t g_iota;
uint64_t pba;
diff --git a/include/exec/memory.h b/include/exec/memory.h
index 8503685455..92980abfad 100644
--- a/include/exec/memory.h
+++ b/include/exec/memory.h
@@ -35,6 +35,10 @@
#define MEMORY_REGION(obj) \
OBJECT_CHECK(MemoryRegion, (obj), TYPE_MEMORY_REGION)
+#define TYPE_IOMMU_MEMORY_REGION "qemu:iommu-memory-region"
+#define IOMMU_MEMORY_REGION(obj) \
+ OBJECT_CHECK(IOMMUMemoryRegion, (obj), TYPE_IOMMU_MEMORY_REGION)
+
typedef struct MemoryRegionOps MemoryRegionOps;
typedef struct MemoryRegionMmio MemoryRegionMmio;
@@ -198,16 +202,16 @@ struct MemoryRegionIOMMUOps {
* set flag to IOMMU_NONE to mean that we don't need any
* read/write permission checks, like, when for region replay.
*/
- IOMMUTLBEntry (*translate)(MemoryRegion *iommu, hwaddr addr,
+ IOMMUTLBEntry (*translate)(IOMMUMemoryRegion *iommu, hwaddr addr,
IOMMUAccessFlags flag);
/* Returns minimum supported page size */
- uint64_t (*get_min_page_size)(MemoryRegion *iommu);
+ uint64_t (*get_min_page_size)(IOMMUMemoryRegion *iommu);
/* Called when IOMMU Notifier flag changed */
- void (*notify_flag_changed)(MemoryRegion *iommu,
+ void (*notify_flag_changed)(IOMMUMemoryRegion *iommu,
IOMMUNotifierFlag old_flags,
IOMMUNotifierFlag new_flags);
/* Set this up to provide customized IOMMU replay function */
- void (*replay)(MemoryRegion *iommu, IOMMUNotifier *notifier);
+ void (*replay)(IOMMUMemoryRegion *iommu, IOMMUNotifier *notifier);
};
typedef struct CoalescedMemoryRange CoalescedMemoryRange;
@@ -227,9 +231,9 @@ struct MemoryRegion {
bool flush_coalesced_mmio;
bool global_locking;
uint8_t dirty_log_mask;
+ bool is_iommu;
RAMBlock *ram_block;
Object *owner;
- const MemoryRegionIOMMUOps *iommu_ops;
const MemoryRegionOps *ops;
void *opaque;
@@ -252,6 +256,12 @@ struct MemoryRegion {
const char *name;
unsigned ioeventfd_nb;
MemoryRegionIoeventfd *ioeventfds;
+};
+
+struct IOMMUMemoryRegion {
+ MemoryRegion parent_obj;
+
+ const MemoryRegionIOMMUOps *iommu_ops;
QLIST_HEAD(, IOMMUNotifier) iommu_notify;
IOMMUNotifierFlag iommu_notify_flags;
};
@@ -618,13 +628,13 @@ static inline void memory_region_init_reservation(MemoryRegion *mr,
* An IOMMU region translates addresses and forwards accesses to a target
* memory region.
*
- * @mr: the #MemoryRegion to be initialized
+ * @iommu_mr: the #IOMMUMemoryRegion to be initialized
* @owner: the object that tracks the region's reference count
* @ops: a function that translates addresses into the @target region
* @name: used for debugging; not visible to the user or ABI
* @size: size of the region.
*/
-void memory_region_init_iommu(MemoryRegion *mr,
+void memory_region_init_iommu(IOMMUMemoryRegion *iommu_mr,
struct Object *owner,
const MemoryRegionIOMMUOps *ops,
const char *name,
@@ -679,20 +689,25 @@ static inline bool memory_region_is_romd(MemoryRegion *mr)
}
/**
- * memory_region_is_iommu: check whether a memory region is an iommu
+ * memory_region_get_iommu: check whether a memory region is an iommu
*
- * Returns %true is a memory region is an iommu.
+ * Returns pointer to IOMMUMemoryRegion if a memory region is an iommu,
+ * otherwise NULL.
*
* @mr: the memory region being queried
*/
-static inline bool memory_region_is_iommu(MemoryRegion *mr)
+static inline IOMMUMemoryRegion *memory_region_get_iommu(MemoryRegion *mr)
{
if (mr->alias) {
- return memory_region_is_iommu(mr->alias);
+ return memory_region_get_iommu(mr->alias);
}
- return mr->iommu_ops;
+ if (mr->is_iommu) {
+ return (IOMMUMemoryRegion *) mr;
+ }
+ return NULL;
}
+#define memory_region_is_iommu(mr) (memory_region_get_iommu(mr) != NULL)
/**
* memory_region_iommu_get_min_page_size: get minimum supported page size
@@ -700,9 +715,9 @@ static inline bool memory_region_is_iommu(MemoryRegion *mr)
*
* Returns minimum supported page size for an iommu.
*
- * @mr: the memory region being queried
+ * @iommu_mr: the memory region being queried
*/
-uint64_t memory_region_iommu_get_min_page_size(MemoryRegion *mr);
+uint64_t memory_region_iommu_get_min_page_size(IOMMUMemoryRegion *iommu_mr);
/**
* memory_region_notify_iommu: notify a change in an IOMMU translation entry.
@@ -716,12 +731,12 @@ uint64_t memory_region_iommu_get_min_page_size(MemoryRegion *mr);
* Note: for any IOMMU implementation, an in-place mapping change
* should be notified with an UNMAP followed by a MAP.
*
- * @mr: the memory region that was changed
+ * @iommu_mr: the memory region that was changed
* @entry: the new entry in the IOMMU translation table. The entry
* replaces all old entries for the same virtual I/O address range.
* Deleted entries have .@perm == 0.
*/
-void memory_region_notify_iommu(MemoryRegion *mr,
+void memory_region_notify_iommu(IOMMUMemoryRegion *iommu_mr,
IOMMUTLBEntry entry);
/**
@@ -756,18 +771,18 @@ void memory_region_register_iommu_notifier(MemoryRegion *mr,
* a notifier with the minimum page granularity returned by
* mr->iommu_ops->get_page_size().
*
- * @mr: the memory region to observe
+ * @iommu_mr: the memory region to observe
* @n: the notifier to which to replay iommu mappings
*/
-void memory_region_iommu_replay(MemoryRegion *mr, IOMMUNotifier *n);
+void memory_region_iommu_replay(IOMMUMemoryRegion *iommu_mr, IOMMUNotifier *n);
/**
* memory_region_iommu_replay_all: replay existing IOMMU translations
* to all the notifiers registered.
*
- * @mr: the memory region to observe
+ * @iommu_mr: the memory region to observe
*/
-void memory_region_iommu_replay_all(MemoryRegion *mr);
+void memory_region_iommu_replay_all(IOMMUMemoryRegion *iommu_mr);
/**
* memory_region_unregister_iommu_notifier: unregister a notifier for
diff --git a/include/hw/i386/intel_iommu.h b/include/hw/i386/intel_iommu.h
index 3e51876b75..45fba4ff97 100644
--- a/include/hw/i386/intel_iommu.h
+++ b/include/hw/i386/intel_iommu.h
@@ -83,7 +83,7 @@ struct VTDAddressSpace {
PCIBus *bus;
uint8_t devfn;
AddressSpace as;
- MemoryRegion iommu;
+ IOMMUMemoryRegion iommu;
MemoryRegion root;
MemoryRegion sys_alias;
MemoryRegion iommu_ir; /* Interrupt region: 0xfeeXXXXX */
diff --git a/include/hw/mips/mips.h b/include/hw/mips/mips.h
index 16412dc150..2f6774d540 100644
--- a/include/hw/mips/mips.h
+++ b/include/hw/mips/mips.h
@@ -19,6 +19,6 @@ typedef struct rc4030DMAState *rc4030_dma;
void rc4030_dma_read(void *dma, uint8_t *buf, int len);
void rc4030_dma_write(void *dma, uint8_t *buf, int len);
-DeviceState *rc4030_init(rc4030_dma **dmas, MemoryRegion **dma_mr);
+DeviceState *rc4030_init(rc4030_dma **dmas, IOMMUMemoryRegion **dma_mr);
#endif
diff --git a/include/hw/ppc/spapr.h b/include/hw/ppc/spapr.h
index a66bbac352..a3dfe7b90b 100644
--- a/include/hw/ppc/spapr.h
+++ b/include/hw/ppc/spapr.h
@@ -595,7 +595,8 @@ struct sPAPRTCETable {
bool bypass;
bool need_vfio;
int fd;
- MemoryRegion root, iommu;
+ MemoryRegion root;
+ IOMMUMemoryRegion iommu;
struct VIOsPAPRDevice *vdev; /* for @bypass migration compatibility only */
QLIST_ENTRY(sPAPRTCETable) list;
};
diff --git a/include/hw/vfio/vfio-common.h b/include/hw/vfio/vfio-common.h
index 9521013d52..d67779729c 100644
--- a/include/hw/vfio/vfio-common.h
+++ b/include/hw/vfio/vfio-common.h
@@ -95,7 +95,7 @@ typedef struct VFIOContainer {
typedef struct VFIOGuestIOMMU {
VFIOContainer *container;
- MemoryRegion *iommu;
+ IOMMUMemoryRegion *iommu;
hwaddr iommu_offset;
IOMMUNotifier n;
QLIST_ENTRY(VFIOGuestIOMMU) giommu_next;
diff --git a/include/qemu/typedefs.h b/include/qemu/typedefs.h
index 2706aabedf..b19159104c 100644
--- a/include/qemu/typedefs.h
+++ b/include/qemu/typedefs.h
@@ -45,6 +45,7 @@ typedef struct MachineState MachineState;
typedef struct MemoryListener MemoryListener;
typedef struct MemoryMappingList MemoryMappingList;
typedef struct MemoryRegion MemoryRegion;
+typedef struct IOMMUMemoryRegion IOMMUMemoryRegion;
typedef struct MemoryRegionCache MemoryRegionCache;
typedef struct MemoryRegionSection MemoryRegionSection;
typedef struct MigrationIncomingState MigrationIncomingState;
diff --git a/exec.c b/exec.c
index a083ff89ad..5135c9ef62 100644
--- a/exec.c
+++ b/exec.c
@@ -480,19 +480,19 @@ static MemoryRegionSection address_space_do_translate(AddressSpace *as,
{
IOMMUTLBEntry iotlb;
MemoryRegionSection *section;
- MemoryRegion *mr;
+ IOMMUMemoryRegion *iommu_mr;
for (;;) {
AddressSpaceDispatch *d = atomic_rcu_read(&as->dispatch);
section = address_space_translate_internal(d, addr, &addr, plen, is_mmio);
- mr = section->mr;
- if (!mr->iommu_ops) {
+ iommu_mr = memory_region_get_iommu(section->mr);
+ if (!iommu_mr) {
break;
}
- iotlb = mr->iommu_ops->translate(mr, addr, is_write ?
- IOMMU_WO : IOMMU_RO);
+ iotlb = iommu_mr->iommu_ops->translate(iommu_mr, addr, is_write ?
+ IOMMU_WO : IOMMU_RO);
addr = ((iotlb.translated_addr & ~iotlb.addr_mask)
| (addr & iotlb.addr_mask));
*plen = MIN(*plen, (addr | iotlb.addr_mask) - addr + 1);
@@ -588,7 +588,7 @@ address_space_translate_for_iotlb(CPUState *cpu, int asidx, hwaddr addr,
section = address_space_translate_internal(d, addr, xlat, plen, false);
- assert(!section->mr->iommu_ops);
+ assert(!memory_region_is_iommu(section->mr));
return section;
}
#endif
diff --git a/hw/alpha/typhoon.c b/hw/alpha/typhoon.c
index c1cf7802a4..dd47b4569f 100644
--- a/hw/alpha/typhoon.c
+++ b/hw/alpha/typhoon.c
@@ -41,7 +41,7 @@ typedef struct TyphoonPchip {
MemoryRegion reg_conf;
AddressSpace iommu_as;
- MemoryRegion iommu;
+ IOMMUMemoryRegion iommu;
uint64_t ctl;
TyphoonWindow win[4];
@@ -663,7 +663,8 @@ static bool window_translate(TyphoonWindow *win, hwaddr addr,
/* Handle PCI-to-system address translation. */
/* TODO: A translation failure here ought to set PCI error codes on the
Pchip and generate a machine check interrupt. */
-static IOMMUTLBEntry typhoon_translate_iommu(MemoryRegion *iommu, hwaddr addr,
+static IOMMUTLBEntry typhoon_translate_iommu(IOMMUMemoryRegion *iommu,
+ hwaddr addr,
IOMMUAccessFlags flag)
{
TyphoonPchip *pchip = container_of(iommu, TyphoonPchip, iommu);
@@ -893,7 +894,8 @@ PCIBus *typhoon_init(ram_addr_t ram_size, ISABus **isa_bus,
/* Host memory as seen from the PCI side, via the IOMMU. */
memory_region_init_iommu(&s->pchip.iommu, OBJECT(s), &typhoon_iommu_ops,
"iommu-typhoon", UINT64_MAX);
- address_space_init(&s->pchip.iommu_as, &s->pchip.iommu, "pchip0-pci");
+ address_space_init(&s->pchip.iommu_as, MEMORY_REGION(&s->pchip.iommu),
+ "pchip0-pci");
pci_setup_iommu(b, typhoon_pci_dma_iommu, s);
/* Pchip0 PCI special/interrupt acknowledge, 0x801.F800.0000, 64MB. */
diff --git a/hw/dma/rc4030.c b/hw/dma/rc4030.c
index edf9432051..32c06760ef 100644
--- a/hw/dma/rc4030.c
+++ b/hw/dma/rc4030.c
@@ -90,7 +90,7 @@ typedef struct rc4030State
qemu_irq jazz_bus_irq;
/* whole DMA memory region, root of DMA address space */
- MemoryRegion dma_mr;
+ IOMMUMemoryRegion dma_mr;
AddressSpace dma_as;
MemoryRegion iomem_chipset;
@@ -488,7 +488,7 @@ static const MemoryRegionOps jazzio_ops = {
.endianness = DEVICE_NATIVE_ENDIAN,
};
-static IOMMUTLBEntry rc4030_dma_translate(MemoryRegion *iommu, hwaddr addr,
+static IOMMUTLBEntry rc4030_dma_translate(IOMMUMemoryRegion *iommu, hwaddr addr,
IOMMUAccessFlags flag)
{
rc4030State *s = container_of(iommu, rc4030State, dma_mr);
@@ -679,7 +679,7 @@ static void rc4030_realize(DeviceState *dev, Error **errp)
memory_region_init_iommu(&s->dma_mr, o, &rc4030_dma_ops,
"rc4030.dma", UINT32_MAX);
- address_space_init(&s->dma_as, &s->dma_mr, "rc4030-dma");
+ address_space_init(&s->dma_as, MEMORY_REGION(&s->dma_mr), "rc4030-dma");
}
static void rc4030_unrealize(DeviceState *dev, Error **errp)
@@ -717,7 +717,7 @@ static void rc4030_register_types(void)
type_init(rc4030_register_types)
-DeviceState *rc4030_init(rc4030_dma **dmas, MemoryRegion **dma_mr)
+DeviceState *rc4030_init(rc4030_dma **dmas, IOMMUMemoryRegion **dma_mr)
{
DeviceState *dev;
diff --git a/hw/i386/amd_iommu.c b/hw/i386/amd_iommu.c
index d93ffc2a15..7a67c573af 100644
--- a/hw/i386/amd_iommu.c
+++ b/hw/i386/amd_iommu.c
@@ -52,7 +52,7 @@ struct AMDVIAddressSpace {
uint8_t bus_num; /* bus number */
uint8_t devfn; /* device function */
AMDVIState *iommu_state; /* AMDVI - one per machine */
- MemoryRegion iommu; /* Device's address translation region */
+ IOMMUMemoryRegion iommu; /* Device's address translation region */
MemoryRegion iommu_ir; /* Device's interrupt remapping region */
AddressSpace as; /* device's corresponding address space */
};
@@ -987,7 +987,7 @@ static inline bool amdvi_is_interrupt_addr(hwaddr addr)
return addr >= AMDVI_INT_ADDR_FIRST && addr <= AMDVI_INT_ADDR_LAST;
}
-static IOMMUTLBEntry amdvi_translate(MemoryRegion *iommu, hwaddr addr,
+static IOMMUTLBEntry amdvi_translate(IOMMUMemoryRegion *iommu, hwaddr addr,
IOMMUAccessFlags flag)
{
AMDVIAddressSpace *as = container_of(iommu, AMDVIAddressSpace, iommu);
@@ -1046,7 +1046,8 @@ static AddressSpace *amdvi_host_dma_iommu(PCIBus *bus, void *opaque, int devfn)
memory_region_init_iommu(&iommu_as[devfn]->iommu, OBJECT(s),
&s->iommu_ops, "amd-iommu", UINT64_MAX);
- address_space_init(&iommu_as[devfn]->as, &iommu_as[devfn]->iommu,
+ address_space_init(&iommu_as[devfn]->as,
+ MEMORY_REGION(&iommu_as[devfn]->iommu),
"amd-iommu");
}
return &iommu_as[devfn]->as;
@@ -1067,7 +1068,7 @@ static const MemoryRegionOps mmio_mem_ops = {
}
};
-static void amdvi_iommu_notify_flag_changed(MemoryRegion *iommu,
+static void amdvi_iommu_notify_flag_changed(IOMMUMemoryRegion *iommu,
IOMMUNotifierFlag old,
IOMMUNotifierFlag new)
{
diff --git a/hw/i386/intel_iommu.c b/hw/i386/intel_iommu.c
index 88dc042b5c..11dba0e274 100644
--- a/hw/i386/intel_iommu.c
+++ b/hw/i386/intel_iommu.c
@@ -972,9 +972,9 @@ static bool vtd_switch_address_space(VTDAddressSpace *as)
/* Turn off first then on the other */
if (use_iommu) {
memory_region_set_enabled(&as->sys_alias, false);
- memory_region_set_enabled(&as->iommu, true);
+ memory_region_set_enabled(MEMORY_REGION(&as->iommu), true);
} else {
- memory_region_set_enabled(&as->iommu, false);
+ memory_region_set_enabled(MEMORY_REGION(&as->iommu), false);
memory_region_set_enabled(&as->sys_alias, true);
}
@@ -1366,7 +1366,7 @@ static void vtd_iotlb_domain_invalidate(IntelIOMMUState *s, uint16_t domain_id)
static int vtd_page_invalidate_notify_hook(IOMMUTLBEntry *entry,
void *private)
{
- memory_region_notify_iommu((MemoryRegion *)private, *entry);
+ memory_region_notify_iommu((IOMMUMemoryRegion *)private, *entry);
return 0;
}
@@ -2264,7 +2264,7 @@ static void vtd_mem_write(void *opaque, hwaddr addr,
}
}
-static IOMMUTLBEntry vtd_iommu_translate(MemoryRegion *iommu, hwaddr addr,
+static IOMMUTLBEntry vtd_iommu_translate(IOMMUMemoryRegion *iommu, hwaddr addr,
IOMMUAccessFlags flag)
{
VTDAddressSpace *vtd_as = container_of(iommu, VTDAddressSpace, iommu);
@@ -2303,7 +2303,7 @@ static IOMMUTLBEntry vtd_iommu_translate(MemoryRegion *iommu, hwaddr addr,
return iotlb;
}
-static void vtd_iommu_notify_flag_changed(MemoryRegion *iommu,
+static void vtd_iommu_notify_flag_changed(IOMMUMemoryRegion *iommu,
IOMMUNotifierFlag old,
IOMMUNotifierFlag new)
{
@@ -2736,7 +2736,8 @@ VTDAddressSpace *vtd_find_add_as(IntelIOMMUState *s, PCIBus *bus, int devfn)
memory_region_add_subregion_overlap(&vtd_dev_as->root, 0,
&vtd_dev_as->sys_alias, 1);
memory_region_add_subregion_overlap(&vtd_dev_as->root, 0,
- &vtd_dev_as->iommu, 1);
+ MEMORY_REGION(&vtd_dev_as->iommu),
+ 1);
vtd_switch_address_space(vtd_dev_as);
}
return vtd_dev_as;
@@ -2816,9 +2817,9 @@ static int vtd_replay_hook(IOMMUTLBEntry *entry, void *private)
return 0;
}
-static void vtd_iommu_replay(MemoryRegion *mr, IOMMUNotifier *n)
+static void vtd_iommu_replay(IOMMUMemoryRegion *iommu_mr, IOMMUNotifier *n)
{
- VTDAddressSpace *vtd_as = container_of(mr, VTDAddressSpace, iommu);
+ VTDAddressSpace *vtd_as = container_of(iommu_mr, VTDAddressSpace, iommu);
IntelIOMMUState *s = vtd_as->iommu_state;
uint8_t bus_n = pci_bus_num(vtd_as->bus);
VTDContextEntry ce;
diff --git a/hw/mips/mips_jazz.c b/hw/mips/mips_jazz.c
index 1cef581878..1f69322c15 100644
--- a/hw/mips/mips_jazz.c
+++ b/hw/mips/mips_jazz.c
@@ -130,7 +130,7 @@ static void mips_jazz_init(MachineState *machine,
CPUMIPSState *env;
qemu_irq *i8259;
rc4030_dma *dmas;
- MemoryRegion *rc4030_dma_mr;
+ IOMMUMemoryRegion *rc4030_dma_mr;
MemoryRegion *isa_mem = g_new(MemoryRegion, 1);
MemoryRegion *isa_io = g_new(MemoryRegion, 1);
MemoryRegion *rtc = g_new(MemoryRegion, 1);
diff --git a/hw/pci-host/apb.c b/hw/pci-host/apb.c
index 326f5ef024..76a56ae29b 100644
--- a/hw/pci-host/apb.c
+++ b/hw/pci-host/apb.c
@@ -123,7 +123,7 @@ do { printf("IOMMU: " fmt , ## __VA_ARGS__); } while (0)
typedef struct IOMMUState {
AddressSpace iommu_as;
- MemoryRegion iommu;
+ IOMMUMemoryRegion iommu;
uint64_t regs[IOMMU_NREGS];
} IOMMUState;
@@ -208,7 +208,7 @@ static AddressSpace *pbm_pci_dma_iommu(PCIBus *bus, void *opaque, int devfn)
}
/* Called from RCU critical section */
-static IOMMUTLBEntry pbm_translate_iommu(MemoryRegion *iommu, hwaddr addr,
+static IOMMUTLBEntry pbm_translate_iommu(IOMMUMemoryRegion *iommu, hwaddr addr,
IOMMUAccessFlags flag)
{
IOMMUState *is = container_of(iommu, IOMMUState, iommu);
@@ -699,7 +699,7 @@ PCIBus *pci_apb_init(hwaddr special_base,
memory_region_init_iommu(&is->iommu, OBJECT(dev), &pbm_iommu_ops,
"iommu-apb", UINT64_MAX);
- address_space_init(&is->iommu_as, &is->iommu, "pbm-as");
+ address_space_init(&is->iommu_as, MEMORY_REGION(&is->iommu), "pbm-as");
pci_setup_iommu(phb->bus, pbm_pci_dma_iommu, is);
/* APB secondary busses */
diff --git a/hw/ppc/spapr_iommu.c b/hw/ppc/spapr_iommu.c
index 8656a54a3e..6b6ced5710 100644
--- a/hw/ppc/spapr_iommu.c
+++ b/hw/ppc/spapr_iommu.c
@@ -110,7 +110,8 @@ static void spapr_tce_free_table(uint64_t *table, int fd, uint32_t nb_table)
}
/* Called from RCU critical section */
-static IOMMUTLBEntry spapr_tce_translate_iommu(MemoryRegion *iommu, hwaddr addr,
+static IOMMUTLBEntry spapr_tce_translate_iommu(IOMMUMemoryRegion *iommu,
+ hwaddr addr,
IOMMUAccessFlags flag)
{
sPAPRTCETable *tcet = container_of(iommu, sPAPRTCETable, iommu);
@@ -150,14 +151,14 @@ static void spapr_tce_table_pre_save(void *opaque)
tcet->bus_offset, tcet->page_shift);
}
-static uint64_t spapr_tce_get_min_page_size(MemoryRegion *iommu)
+static uint64_t spapr_tce_get_min_page_size(IOMMUMemoryRegion *iommu)
{
sPAPRTCETable *tcet = container_of(iommu, sPAPRTCETable, iommu);
return 1ULL << tcet->page_shift;
}
-static void spapr_tce_notify_flag_changed(MemoryRegion *iommu,
+static void spapr_tce_notify_flag_changed(IOMMUMemoryRegion *iommu,
IOMMUNotifierFlag old,
IOMMUNotifierFlag new)
{
@@ -348,9 +349,10 @@ void spapr_tce_table_enable(sPAPRTCETable *tcet,
&tcet->fd,
tcet->need_vfio);
- memory_region_set_size(&tcet->iommu,
+ memory_region_set_size(MEMORY_REGION(&tcet->iommu),
(uint64_t)tcet->nb_table << tcet->page_shift);
- memory_region_add_subregion(&tcet->root, tcet->bus_offset, &tcet->iommu);
+ memory_region_add_subregion(&tcet->root, tcet->bus_offset,
+ MEMORY_REGION(&tcet->iommu));
}
void spapr_tce_table_disable(sPAPRTCETable *tcet)
@@ -359,8 +361,8 @@ void spapr_tce_table_disable(sPAPRTCETable *tcet)
return;
}
- memory_region_del_subregion(&tcet->root, &tcet->iommu);
- memory_region_set_size(&tcet->iommu, 0);
+ memory_region_del_subregion(&tcet->root, MEMORY_REGION(&tcet->iommu));
+ memory_region_set_size(MEMORY_REGION(&tcet->iommu), 0);
spapr_tce_free_table(tcet->table, tcet->fd, tcet->nb_table);
tcet->fd = -1;
diff --git a/hw/s390x/s390-pci-bus.c b/hw/s390x/s390-pci-bus.c
index 5651483781..e4fc82cbe1 100644
--- a/hw/s390x/s390-pci-bus.c
+++ b/hw/s390x/s390-pci-bus.c
@@ -356,7 +356,7 @@ out:
return pte;
}
-static IOMMUTLBEntry s390_translate_iommu(MemoryRegion *mr, hwaddr addr,
+static IOMMUTLBEntry s390_translate_iommu(IOMMUMemoryRegion *mr, hwaddr addr,
IOMMUAccessFlags flag)
{
uint64_t pte;
@@ -525,14 +525,14 @@ void s390_pci_iommu_enable(S390PCIIOMMU *iommu)
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);
+ memory_region_add_subregion(&iommu->mr, 0, MEMORY_REGION(&iommu->iommu_mr));
g_free(name);
}
void s390_pci_iommu_disable(S390PCIIOMMU *iommu)
{
iommu->enabled = false;
- memory_region_del_subregion(&iommu->mr, &iommu->iommu_mr);
+ memory_region_del_subregion(&iommu->mr, MEMORY_REGION(&iommu->iommu_mr));
object_unparent(OBJECT(&iommu->iommu_mr));
}
diff --git a/hw/s390x/s390-pci-inst.c b/hw/s390x/s390-pci-inst.c
index 8bc7c98682..a53c29c487 100644
--- a/hw/s390x/s390-pci-inst.c
+++ b/hw/s390x/s390-pci-inst.c
@@ -563,7 +563,7 @@ int rpcit_service_call(S390CPU *cpu, uint8_t r1, uint8_t r2)
S390PCIIOMMU *iommu;
hwaddr start, end;
IOMMUTLBEntry entry;
- MemoryRegion *mr;
+ IOMMUMemoryRegion *iommu_mr;
cpu_synchronize_state(CPU(cpu));
@@ -622,9 +622,9 @@ int rpcit_service_call(S390CPU *cpu, uint8_t r1, uint8_t r2)
goto out;
}
- mr = &iommu->iommu_mr;
+ iommu_mr = &iommu->iommu_mr;
while (start < end) {
- entry = mr->iommu_ops->translate(mr, start, IOMMU_NONE);
+ entry = iommu_mr->iommu_ops->translate(iommu_mr, start, IOMMU_NONE);
if (!entry.translated_addr) {
pbdev->state = ZPCI_FS_ERROR;
@@ -635,7 +635,7 @@ int rpcit_service_call(S390CPU *cpu, uint8_t r1, uint8_t r2)
goto out;
}
- memory_region_notify_iommu(mr, entry);
+ memory_region_notify_iommu(iommu_mr, entry);
start += entry.addr_mask + 1;
}
diff --git a/hw/vfio/common.c b/hw/vfio/common.c
index b9abe77f5a..2965b68e5d 100644
--- a/hw/vfio/common.c
+++ b/hw/vfio/common.c
@@ -479,6 +479,7 @@ static void vfio_listener_region_add(MemoryListener *listener,
if (memory_region_is_iommu(section->mr)) {
VFIOGuestIOMMU *giommu;
+ IOMMUMemoryRegion *iommu_mr = IOMMU_MEMORY_REGION(section->mr);
trace_vfio_listener_region_add_iommu(iova, end);
/*
@@ -488,7 +489,7 @@ static void vfio_listener_region_add(MemoryListener *listener,
* device emulation the VFIO iommu handles to use).
*/
giommu = g_malloc0(sizeof(*giommu));
- giommu->iommu = section->mr;
+ giommu->iommu = iommu_mr;
giommu->iommu_offset = section->offset_within_address_space -
section->offset_within_region;
giommu->container = container;
@@ -501,7 +502,7 @@ static void vfio_listener_region_add(MemoryListener *listener,
int128_get64(llend));
QLIST_INSERT_HEAD(&container->giommu_list, giommu, giommu_next);
- memory_region_register_iommu_notifier(giommu->iommu, &giommu->n);
+ memory_region_register_iommu_notifier(section->mr, &giommu->n);
memory_region_iommu_replay(giommu->iommu, &giommu->n);
return;
@@ -569,9 +570,9 @@ static void vfio_listener_region_del(MemoryListener *listener,
VFIOGuestIOMMU *giommu;
QLIST_FOREACH(giommu, &container->giommu_list, giommu_next) {
- if (giommu->iommu == section->mr &&
+ if (MEMORY_REGION(giommu->iommu) == section->mr &&
giommu->n.start == section->offset_within_region) {
- memory_region_unregister_iommu_notifier(giommu->iommu,
+ memory_region_unregister_iommu_notifier(section->mr,
&giommu->n);
QLIST_REMOVE(giommu, giommu_next);
g_free(giommu);
@@ -1161,7 +1162,8 @@ static void vfio_disconnect_container(VFIOGroup *group)
QLIST_REMOVE(container, next);
QLIST_FOREACH_SAFE(giommu, &container->giommu_list, giommu_next, tmp) {
- memory_region_unregister_iommu_notifier(giommu->iommu, &giommu->n);
+ memory_region_unregister_iommu_notifier(
+ MEMORY_REGION(giommu->iommu), &giommu->n);
QLIST_REMOVE(giommu, giommu_next);
g_free(giommu);
}
diff --git a/hw/vfio/spapr.c b/hw/vfio/spapr.c
index 4409bcc0d7..32fd6a9b54 100644
--- a/hw/vfio/spapr.c
+++ b/hw/vfio/spapr.c
@@ -143,7 +143,8 @@ int vfio_spapr_create_window(VFIOContainer *container,
hwaddr *pgsize)
{
int ret;
- unsigned pagesize = memory_region_iommu_get_min_page_size(section->mr);
+ IOMMUMemoryRegion *iommu_mr = IOMMU_MEMORY_REGION(section->mr);
+ unsigned pagesize = memory_region_iommu_get_min_page_size(iommu_mr);
unsigned entries, pages;
struct vfio_iommu_spapr_tce_create create = { .argsz = sizeof(create) };
diff --git a/memory.c b/memory.c
index 1044bbaf0c..45e10e2e3b 100644
--- a/memory.c
+++ b/memory.c
@@ -977,12 +977,11 @@ static char *memory_region_escape_name(const char *name)
return escaped;
}
-void memory_region_init(MemoryRegion *mr,
- Object *owner,
- const char *name,
- uint64_t size)
+static void memory_region_do_init(MemoryRegion *mr,
+ Object *owner,
+ const char *name,
+ uint64_t size)
{
- object_initialize(mr, sizeof(*mr), TYPE_MEMORY_REGION);
mr->size = int128_make64(size);
if (size == UINT64_MAX) {
mr->size = int128_2_64();
@@ -1006,6 +1005,15 @@ void memory_region_init(MemoryRegion *mr,
}
}
+void memory_region_init(MemoryRegion *mr,
+ Object *owner,
+ const char *name,
+ uint64_t size)
+{
+ object_initialize(mr, sizeof(*mr), TYPE_MEMORY_REGION);
+ memory_region_do_init(mr, owner, name, size);
+}
+
static void memory_region_get_addr(Object *obj, Visitor *v, const char *name,
void *opaque, Error **errp)
{
@@ -1092,6 +1100,13 @@ static void memory_region_initfn(Object *obj)
NULL, NULL, &error_abort);
}
+static void iommu_memory_region_initfn(Object *obj)
+{
+ MemoryRegion *mr = MEMORY_REGION(obj);
+
+ mr->is_iommu = true;
+}
+
static uint64_t unassigned_mem_read(void *opaque, hwaddr addr,
unsigned size)
{
@@ -1491,17 +1506,22 @@ void memory_region_init_rom_device(MemoryRegion *mr,
mr->ram_block = qemu_ram_alloc(size, mr, errp);
}
-void memory_region_init_iommu(MemoryRegion *mr,
+void memory_region_init_iommu(IOMMUMemoryRegion *iommu_mr,
Object *owner,
const MemoryRegionIOMMUOps *ops,
const char *name,
uint64_t size)
{
- memory_region_init(mr, owner, name, size);
- mr->iommu_ops = ops,
+ struct MemoryRegion *mr;
+
+ object_initialize(iommu_mr, sizeof(*iommu_mr), TYPE_IOMMU_MEMORY_REGION);
+ mr = MEMORY_REGION(iommu_mr);
+ memory_region_do_init(mr, owner, name, size);
+ iommu_mr = IOMMU_MEMORY_REGION(mr);
+ iommu_mr->iommu_ops = ops,
mr->terminates = true; /* then re-forwards */
- QLIST_INIT(&mr->iommu_notify);
- mr->iommu_notify_flags = IOMMU_NOTIFIER_NONE;
+ QLIST_INIT(&iommu_mr->iommu_notify);
+ iommu_mr->iommu_notify_flags = IOMMU_NOTIFIER_NONE;
}
static void memory_region_finalize(Object *obj)
@@ -1596,63 +1616,67 @@ bool memory_region_is_logging(MemoryRegion *mr, uint8_t client)
return memory_region_get_dirty_log_mask(mr) & (1 << client);
}
-static void memory_region_update_iommu_notify_flags(MemoryRegion *mr)
+static void memory_region_update_iommu_notify_flags(IOMMUMemoryRegion *iommu_mr)
{
IOMMUNotifierFlag flags = IOMMU_NOTIFIER_NONE;
IOMMUNotifier *iommu_notifier;
- IOMMU_NOTIFIER_FOREACH(iommu_notifier, mr) {
+ IOMMU_NOTIFIER_FOREACH(iommu_notifier, iommu_mr) {
flags |= iommu_notifier->notifier_flags;
}
- if (flags != mr->iommu_notify_flags &&
- mr->iommu_ops->notify_flag_changed) {
- mr->iommu_ops->notify_flag_changed(mr, mr->iommu_notify_flags,
- flags);
+ if (flags != iommu_mr->iommu_notify_flags &&
+ iommu_mr->iommu_ops->notify_flag_changed) {
+ iommu_mr->iommu_ops->notify_flag_changed(iommu_mr,
+ iommu_mr->iommu_notify_flags,
+ flags);
}
- mr->iommu_notify_flags = flags;
+ iommu_mr->iommu_notify_flags = flags;
}
void memory_region_register_iommu_notifier(MemoryRegion *mr,
IOMMUNotifier *n)
{
+ IOMMUMemoryRegion *iommu_mr;
+
if (mr->alias) {
memory_region_register_iommu_notifier(mr->alias, n);
return;
}
/* We need to register for at least one bitfield */
+ iommu_mr = IOMMU_MEMORY_REGION(mr);
assert(n->notifier_flags != IOMMU_NOTIFIER_NONE);
assert(n->start <= n->end);
- QLIST_INSERT_HEAD(&mr->iommu_notify, n, node);
- memory_region_update_iommu_notify_flags(mr);
+ QLIST_INSERT_HEAD(&iommu_mr->iommu_notify, n, node);
+ memory_region_update_iommu_notify_flags(iommu_mr);
}
-uint64_t memory_region_iommu_get_min_page_size(MemoryRegion *mr)
+uint64_t memory_region_iommu_get_min_page_size(IOMMUMemoryRegion *iommu_mr)
{
- assert(memory_region_is_iommu(mr));
- if (mr->iommu_ops && mr->iommu_ops->get_min_page_size) {
- return mr->iommu_ops->get_min_page_size(mr);
+ if (iommu_mr->iommu_ops && iommu_mr->iommu_ops->get_min_page_size) {
+ return iommu_mr->iommu_ops->get_min_page_size(iommu_mr);
}
return TARGET_PAGE_SIZE;
}
-void memory_region_iommu_replay(MemoryRegion *mr, IOMMUNotifier *n)
+void memory_region_iommu_replay(IOMMUMemoryRegion *iommu_mr, IOMMUNotifier *n)
{
+ MemoryRegion *mr = MEMORY_REGION(iommu_mr);
hwaddr addr, granularity;
IOMMUTLBEntry iotlb;
/* If the IOMMU has its own replay callback, override */
- if (mr->iommu_ops->replay) {
- mr->iommu_ops->replay(mr, n);
+ if (iommu_mr->iommu_ops->replay) {
+ iommu_mr->iommu_ops->replay(iommu_mr, n);
return;
}
- granularity = memory_region_iommu_get_min_page_size(mr);
+ granularity = memory_region_iommu_get_min_page_size(iommu_mr);
for (addr = 0; addr < memory_region_size(mr); addr += granularity) {
- iotlb = mr->iommu_ops->translate(mr, addr, IOMMU_NONE);
+ iotlb = iommu_mr->iommu_ops->translate(iommu_mr, addr, IOMMU_NONE);
if (iotlb.perm != IOMMU_NONE) {
n->notify(n, &iotlb);
}
@@ -1665,24 +1689,27 @@ void memory_region_iommu_replay(MemoryRegion *mr, IOMMUNotifier *n)
}
}
-void memory_region_iommu_replay_all(MemoryRegion *mr)
+void memory_region_iommu_replay_all(IOMMUMemoryRegion *iommu_mr)
{
IOMMUNotifier *notifier;
- IOMMU_NOTIFIER_FOREACH(notifier, mr) {
- memory_region_iommu_replay(mr, notifier);
+ IOMMU_NOTIFIER_FOREACH(notifier, iommu_mr) {
+ memory_region_iommu_replay(iommu_mr, notifier);
}
}
void memory_region_unregister_iommu_notifier(MemoryRegion *mr,
IOMMUNotifier *n)
{
+ IOMMUMemoryRegion *iommu_mr;
+
if (mr->alias) {
memory_region_unregister_iommu_notifier(mr->alias, n);
return;
}
QLIST_REMOVE(n, node);
- memory_region_update_iommu_notify_flags(mr);
+ iommu_mr = IOMMU_MEMORY_REGION(mr);
+ memory_region_update_iommu_notify_flags(iommu_mr);
}
void memory_region_notify_one(IOMMUNotifier *notifier,
@@ -1710,14 +1737,14 @@ void memory_region_notify_one(IOMMUNotifier *notifier,
}
}
-void memory_region_notify_iommu(MemoryRegion *mr,
+void memory_region_notify_iommu(IOMMUMemoryRegion *iommu_mr,
IOMMUTLBEntry entry)
{
IOMMUNotifier *iommu_notifier;
- assert(memory_region_is_iommu(mr));
+ assert(memory_region_is_iommu(MEMORY_REGION(iommu_mr)));
- IOMMU_NOTIFIER_FOREACH(iommu_notifier, mr) {
+ IOMMU_NOTIFIER_FOREACH(iommu_notifier, iommu_mr) {
memory_region_notify_one(iommu_notifier, &entry);
}
}
@@ -2825,9 +2852,17 @@ static const TypeInfo memory_region_info = {
.instance_finalize = memory_region_finalize,
};
+static const TypeInfo iommu_memory_region_info = {
+ .parent = TYPE_MEMORY_REGION,
+ .name = TYPE_IOMMU_MEMORY_REGION,
+ .instance_size = sizeof(IOMMUMemoryRegion),
+ .instance_init = iommu_memory_region_initfn,
+};
+
static void memory_register_types(void)
{
type_register_static(&memory_region_info);
+ type_register_static(&iommu_memory_region_info);
}
type_init(memory_register_types)
--
2.11.0
^ permalink raw reply related [flat|nested] 8+ messages in thread
* [Qemu-devel] [PATCH qemu v9 2/2] memory/iommu: introduce IOMMUMemoryRegionClass
2017-07-11 3:56 [Qemu-devel] [PATCH qemu v9 0/2] memory/iommu: QOM'fy IOMMU MemoryRegion Alexey Kardashevskiy
2017-07-11 3:56 ` [Qemu-devel] [PATCH qemu v9 1/2] " Alexey Kardashevskiy
@ 2017-07-11 3:56 ` Alexey Kardashevskiy
2017-07-12 13:18 ` Cornelia Huck
2017-07-16 6:45 ` David Gibson
2017-07-12 13:20 ` [Qemu-devel] [PATCH qemu v9 0/2] memory/iommu: QOM'fy IOMMU MemoryRegion Cornelia Huck
2 siblings, 2 replies; 8+ messages in thread
From: Alexey Kardashevskiy @ 2017-07-11 3:56 UTC (permalink / raw)
To: qemu-devel
Cc: Alexey Kardashevskiy, David Gibson, Philippe Mathieu-Daudé,
Peter Xu, Alex Williamson, Christian Borntraeger, Cornelia Huck,
Paolo Bonzini, qemu-ppc
This finishes QOM'fication of IOMMUMemoryRegion by introducing
a IOMMUMemoryRegionClass. This also provides a fastpath analog for
IOMMU_MEMORY_REGION_GET_CLASS().
This makes IOMMUMemoryRegion an abstract class.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
---
Changes:
v9:
* moved IOMMU MR typenames next to respective IOMMU device typenames
* renamed few definitions and functions to match the rest of the code
(for example intel_vtd_iommu_memory_region_class_init -> vtd_iommu_memory_region_class_init
as the rest of that file uses "vtd_" as a prefix)
v8:
* first appearance
---
hw/i386/amd_iommu.h | 5 ++---
hw/s390x/s390-pci-bus.h | 1 +
include/exec/memory.h | 45 +++++++++++++++++++++++++++++++++----------
include/hw/i386/intel_iommu.h | 3 ++-
include/hw/ppc/spapr.h | 4 ++++
exec.c | 6 ++++--
hw/alpha/typhoon.c | 23 +++++++++++++++++-----
hw/dma/rc4030.c | 26 +++++++++++++++++++------
hw/i386/amd_iommu.c | 24 +++++++++++++++++++----
hw/i386/intel_iommu.c | 25 +++++++++++++++++++-----
hw/pci-host/apb.c | 23 +++++++++++++++++-----
hw/ppc/spapr_iommu.c | 26 ++++++++++++++++++-------
hw/s390x/s390-pci-bus.c | 23 ++++++++++++++++------
hw/s390x/s390-pci-inst.c | 5 ++++-
memory.c | 36 +++++++++++++++++++---------------
15 files changed, 205 insertions(+), 70 deletions(-)
diff --git a/hw/i386/amd_iommu.h b/hw/i386/amd_iommu.h
index 0d3dc6a9f2..d370ae3549 100644
--- a/hw/i386/amd_iommu.h
+++ b/hw/i386/amd_iommu.h
@@ -220,6 +220,8 @@
#define TYPE_AMD_IOMMU_PCI "AMDVI-PCI"
+#define TYPE_AMD_IOMMU_MEMORY_REGION "amd-iommu-iommu-memory-region"
+
typedef struct AMDVIAddressSpace AMDVIAddressSpace;
/* functions to steal PCI config space */
@@ -276,9 +278,6 @@ typedef struct AMDVIState {
uint8_t romask[AMDVI_MMIO_SIZE]; /* MMIO read/only mask */
bool mmio_enabled;
- /* IOMMU function */
- MemoryRegionIOMMUOps iommu_ops;
-
/* for each served device */
AMDVIAddressSpace **address_spaces[PCI_BUS_MAX];
diff --git a/hw/s390x/s390-pci-bus.h b/hw/s390x/s390-pci-bus.h
index 6a599ed353..67af2c12ff 100644
--- a/hw/s390x/s390-pci-bus.h
+++ b/hw/s390x/s390-pci-bus.h
@@ -24,6 +24,7 @@
#define TYPE_S390_PCI_BUS "s390-pcibus"
#define TYPE_S390_PCI_DEVICE "zpci"
#define TYPE_S390_PCI_IOMMU "s390-pci-iommu"
+#define TYPE_S390_IOMMU_MEMORY_REGION "s390-iommu-memory-region"
#define FH_MASK_ENABLE 0x80000000
#define FH_MASK_INSTANCE 0x7f000000
#define FH_MASK_SHM 0x00ff0000
diff --git a/include/exec/memory.h b/include/exec/memory.h
index 92980abfad..b7966014fe 100644
--- a/include/exec/memory.h
+++ b/include/exec/memory.h
@@ -25,6 +25,7 @@
#include "qemu/notify.h"
#include "qom/object.h"
#include "qemu/rcu.h"
+#include "hw/qdev-core.h"
#define RAM_ADDR_INVALID (~(ram_addr_t)0)
@@ -38,6 +39,12 @@
#define TYPE_IOMMU_MEMORY_REGION "qemu:iommu-memory-region"
#define IOMMU_MEMORY_REGION(obj) \
OBJECT_CHECK(IOMMUMemoryRegion, (obj), TYPE_IOMMU_MEMORY_REGION)
+#define IOMMU_MEMORY_REGION_CLASS(klass) \
+ OBJECT_CLASS_CHECK(IOMMUMemoryRegionClass, (klass), \
+ TYPE_IOMMU_MEMORY_REGION)
+#define IOMMU_MEMORY_REGION_GET_CLASS(obj) \
+ OBJECT_GET_CLASS(IOMMUMemoryRegionClass, (obj), \
+ TYPE_IOMMU_MEMORY_REGION)
typedef struct MemoryRegionOps MemoryRegionOps;
typedef struct MemoryRegionMmio MemoryRegionMmio;
@@ -193,9 +200,10 @@ struct MemoryRegionOps {
const MemoryRegionMmio old_mmio;
};
-typedef struct MemoryRegionIOMMUOps MemoryRegionIOMMUOps;
+typedef struct IOMMUMemoryRegionClass {
+ /* private */
+ struct DeviceClass parent_class;
-struct MemoryRegionIOMMUOps {
/*
* Return a TLB entry that contains a given address. Flag should
* be the access permission of this translation operation. We can
@@ -212,7 +220,7 @@ struct MemoryRegionIOMMUOps {
IOMMUNotifierFlag new_flags);
/* Set this up to provide customized IOMMU replay function */
void (*replay)(IOMMUMemoryRegion *iommu, IOMMUNotifier *notifier);
-};
+} IOMMUMemoryRegionClass;
typedef struct CoalescedMemoryRange CoalescedMemoryRange;
typedef struct MemoryRegionIoeventfd MemoryRegionIoeventfd;
@@ -261,7 +269,6 @@ struct MemoryRegion {
struct IOMMUMemoryRegion {
MemoryRegion parent_obj;
- const MemoryRegionIOMMUOps *iommu_ops;
QLIST_HEAD(, IOMMUNotifier) iommu_notify;
IOMMUNotifierFlag iommu_notify_flags;
};
@@ -622,21 +629,24 @@ static inline void memory_region_init_reservation(MemoryRegion *mr,
}
/**
- * memory_region_init_iommu: Initialize a memory region that translates
- * addresses
+ * memory_region_init_iommu: Initialize a memory region of a custom type
+ * that translates addresses
*
* An IOMMU region translates addresses and forwards accesses to a target
* memory region.
*
- * @iommu_mr: the #IOMMUMemoryRegion to be initialized
+ * @typename: QOM class name
+ * @_iommu_mr: the #IOMMUMemoryRegion to be initialized
+ * @instance_size: the IOMMUMemoryRegion subclass instance size
* @owner: the object that tracks the region's reference count
* @ops: a function that translates addresses into the @target region
* @name: used for debugging; not visible to the user or ABI
* @size: size of the region.
*/
-void memory_region_init_iommu(IOMMUMemoryRegion *iommu_mr,
- struct Object *owner,
- const MemoryRegionIOMMUOps *ops,
+void memory_region_init_iommu(void *_iommu_mr,
+ size_t instance_size,
+ const char *mrtypename,
+ Object *owner,
const char *name,
uint64_t size);
@@ -707,6 +717,21 @@ static inline IOMMUMemoryRegion *memory_region_get_iommu(MemoryRegion *mr)
return NULL;
}
+/**
+ * memory_region_get_iommu_class_nocheck: returns iommu memory region class
+ * if an iommu or NULL if not
+ *
+ * Returns pointer to IOMMUMemoryRegioniClass if a memory region is an iommu,
+ * otherwise NULL. This is fast path avoinding QOM checking, use with caution.
+ *
+ * @mr: the memory region being queried
+ */
+static inline IOMMUMemoryRegionClass *memory_region_get_iommu_class_nocheck(
+ IOMMUMemoryRegion *iommu_mr)
+{
+ return (IOMMUMemoryRegionClass *) (((Object *)iommu_mr)->class);
+}
+
#define memory_region_is_iommu(mr) (memory_region_get_iommu(mr) != NULL)
/**
diff --git a/include/hw/i386/intel_iommu.h b/include/hw/i386/intel_iommu.h
index 45fba4ff97..08d8a26d13 100644
--- a/include/hw/i386/intel_iommu.h
+++ b/include/hw/i386/intel_iommu.h
@@ -32,6 +32,8 @@
#define INTEL_IOMMU_DEVICE(obj) \
OBJECT_CHECK(IntelIOMMUState, (obj), TYPE_INTEL_IOMMU_DEVICE)
+#define TYPE_INTEL_IOMMU_MEMORY_REGION "intel-iommu-iommu-memory-region"
+
/* DMAR Hardware Unit Definition address (IOMMU unit) */
#define Q35_HOST_BRIDGE_IOMMU_ADDR 0xfed90000ULL
@@ -289,7 +291,6 @@ struct IntelIOMMUState {
uint32_t context_cache_gen; /* Should be in [1,MAX] */
GHashTable *iotlb; /* IOTLB */
- MemoryRegionIOMMUOps iommu_ops;
GHashTable *vtd_as_by_busptr; /* VTDBus objects indexed by PCIBus* reference */
VTDBus *vtd_as_by_bus_num[VTD_PCI_BUS_MAX]; /* VTDBus objects indexed by bus number */
/* list of registered notifiers */
diff --git a/include/hw/ppc/spapr.h b/include/hw/ppc/spapr.h
index a3dfe7b90b..af08f9fd43 100644
--- a/include/hw/ppc/spapr.h
+++ b/include/hw/ppc/spapr.h
@@ -583,6 +583,10 @@ typedef struct sPAPRTCETable sPAPRTCETable;
#define SPAPR_TCE_TABLE(obj) \
OBJECT_CHECK(sPAPRTCETable, (obj), TYPE_SPAPR_TCE_TABLE)
+#define TYPE_SPAPR_IOMMU_MEMORY_REGION "spapr-iommu-memory-region"
+#define SPAPR_IOMMU_MEMORY_REGION(obj) \
+ OBJECT_CHECK(IOMMUMemoryRegion, (obj), TYPE_SPAPR_IOMMU_MEMORY_REGION)
+
struct sPAPRTCETable {
DeviceState parent;
uint32_t liobn;
diff --git a/exec.c b/exec.c
index 5135c9ef62..da09f96a0d 100644
--- a/exec.c
+++ b/exec.c
@@ -481,6 +481,7 @@ static MemoryRegionSection address_space_do_translate(AddressSpace *as,
IOMMUTLBEntry iotlb;
MemoryRegionSection *section;
IOMMUMemoryRegion *iommu_mr;
+ IOMMUMemoryRegionClass *imrc;
for (;;) {
AddressSpaceDispatch *d = atomic_rcu_read(&as->dispatch);
@@ -490,9 +491,10 @@ static MemoryRegionSection address_space_do_translate(AddressSpace *as,
if (!iommu_mr) {
break;
}
+ imrc = memory_region_get_iommu_class_nocheck(iommu_mr);
- iotlb = iommu_mr->iommu_ops->translate(iommu_mr, addr, is_write ?
- IOMMU_WO : IOMMU_RO);
+ iotlb = imrc->translate(iommu_mr, addr, is_write ?
+ IOMMU_WO : IOMMU_RO);
addr = ((iotlb.translated_addr & ~iotlb.addr_mask)
| (addr & iotlb.addr_mask));
*plen = MIN(*plen, (addr | iotlb.addr_mask) - addr + 1);
diff --git a/hw/alpha/typhoon.c b/hw/alpha/typhoon.c
index dd47b4569f..ae11e012c7 100644
--- a/hw/alpha/typhoon.c
+++ b/hw/alpha/typhoon.c
@@ -17,6 +17,7 @@
#define TYPE_TYPHOON_PCI_HOST_BRIDGE "typhoon-pcihost"
+#define TYPE_TYPHOON_IOMMU_MEMORY_REGION "typhoon-iommu-memory-region"
typedef struct TyphoonCchip {
MemoryRegion region;
@@ -725,10 +726,6 @@ static IOMMUTLBEntry typhoon_translate_iommu(IOMMUMemoryRegion *iommu,
return ret;
}
-static const MemoryRegionIOMMUOps typhoon_iommu_ops = {
- .translate = typhoon_translate_iommu,
-};
-
static AddressSpace *typhoon_pci_dma_iommu(PCIBus *bus, void *opaque, int devfn)
{
TyphoonState *s = opaque;
@@ -892,7 +889,8 @@ PCIBus *typhoon_init(ram_addr_t ram_size, ISABus **isa_bus,
qdev_init_nofail(dev);
/* Host memory as seen from the PCI side, via the IOMMU. */
- memory_region_init_iommu(&s->pchip.iommu, OBJECT(s), &typhoon_iommu_ops,
+ memory_region_init_iommu(&s->pchip.iommu, sizeof(s->pchip.iommu),
+ TYPE_TYPHOON_IOMMU_MEMORY_REGION, OBJECT(s),
"iommu-typhoon", UINT64_MAX);
address_space_init(&s->pchip.iommu_as, MEMORY_REGION(&s->pchip.iommu),
"pchip0-pci");
@@ -953,9 +951,24 @@ static const TypeInfo typhoon_pcihost_info = {
.class_init = typhoon_pcihost_class_init,
};
+static void typhoon_iommu_memory_region_class_init(ObjectClass *klass,
+ void *data)
+{
+ IOMMUMemoryRegionClass *imrc = IOMMU_MEMORY_REGION_CLASS(klass);
+
+ imrc->translate = typhoon_translate_iommu;
+}
+
+static const TypeInfo typhoon_iommu_memory_region_info = {
+ .parent = TYPE_IOMMU_MEMORY_REGION,
+ .name = TYPE_TYPHOON_IOMMU_MEMORY_REGION,
+ .class_init = typhoon_iommu_memory_region_class_init,
+};
+
static void typhoon_register_types(void)
{
type_register_static(&typhoon_pcihost_info);
+ type_register_static(&typhoon_iommu_memory_region_info);
}
type_init(typhoon_register_types)
diff --git a/hw/dma/rc4030.c b/hw/dma/rc4030.c
index 32c06760ef..5d4833eeca 100644
--- a/hw/dma/rc4030.c
+++ b/hw/dma/rc4030.c
@@ -54,6 +54,8 @@ typedef struct dma_pagetable_entry {
#define RC4030(obj) \
OBJECT_CHECK(rc4030State, (obj), TYPE_RC4030)
+#define TYPE_RC4030_IOMMU_MEMORY_REGION "rc4030-iommu-memory-region"
+
typedef struct rc4030State
{
SysBusDevice parent;
@@ -516,10 +518,6 @@ static IOMMUTLBEntry rc4030_dma_translate(IOMMUMemoryRegion *iommu, hwaddr addr,
return ret;
}
-static const MemoryRegionIOMMUOps rc4030_dma_ops = {
- .translate = rc4030_dma_translate,
-};
-
static void rc4030_reset(DeviceState *dev)
{
rc4030State *s = RC4030(dev);
@@ -677,8 +675,9 @@ static void rc4030_realize(DeviceState *dev, Error **errp)
memory_region_init_io(&s->iomem_jazzio, NULL, &jazzio_ops, s,
"rc4030.jazzio", 0x00001000);
- memory_region_init_iommu(&s->dma_mr, o, &rc4030_dma_ops,
- "rc4030.dma", UINT32_MAX);
+ memory_region_init_iommu(&s->dma_mr, sizeof(s->dma_mr),
+ TYPE_RC4030_IOMMU_MEMORY_REGION,
+ o, "rc4030.dma", UINT32_MAX);
address_space_init(&s->dma_as, MEMORY_REGION(&s->dma_mr), "rc4030-dma");
}
@@ -710,9 +709,24 @@ static const TypeInfo rc4030_info = {
.class_init = rc4030_class_init,
};
+static void rc4030_iommu_memory_region_class_init(ObjectClass *klass,
+ void *data)
+{
+ IOMMUMemoryRegionClass *imrc = IOMMU_MEMORY_REGION_CLASS(klass);
+
+ imrc->translate = rc4030_dma_translate;
+}
+
+static const TypeInfo rc4030_iommu_memory_region_info = {
+ .parent = TYPE_IOMMU_MEMORY_REGION,
+ .name = TYPE_RC4030_IOMMU_MEMORY_REGION,
+ .class_init = rc4030_iommu_memory_region_class_init,
+};
+
static void rc4030_register_types(void)
{
type_register_static(&rc4030_info);
+ type_register_static(&rc4030_iommu_memory_region_info);
}
type_init(rc4030_register_types)
diff --git a/hw/i386/amd_iommu.c b/hw/i386/amd_iommu.c
index 7a67c573af..334938a280 100644
--- a/hw/i386/amd_iommu.c
+++ b/hw/i386/amd_iommu.c
@@ -1044,8 +1044,11 @@ static AddressSpace *amdvi_host_dma_iommu(PCIBus *bus, void *opaque, int devfn)
iommu_as[devfn]->devfn = (uint8_t)devfn;
iommu_as[devfn]->iommu_state = s;
- memory_region_init_iommu(&iommu_as[devfn]->iommu, OBJECT(s),
- &s->iommu_ops, "amd-iommu", UINT64_MAX);
+ memory_region_init_iommu(&iommu_as[devfn]->iommu,
+ sizeof(iommu_as[devfn]->iommu),
+ TYPE_AMD_IOMMU_MEMORY_REGION,
+ OBJECT(s),
+ "amd-iommu", UINT64_MAX);
address_space_init(&iommu_as[devfn]->as,
MEMORY_REGION(&iommu_as[devfn]->iommu),
"amd-iommu");
@@ -1086,8 +1089,6 @@ static void amdvi_init(AMDVIState *s)
{
amdvi_iotlb_reset(s);
- s->iommu_ops.translate = amdvi_translate;
- s->iommu_ops.notify_flag_changed = amdvi_iommu_notify_flag_changed;
s->devtab_len = 0;
s->cmdbuf_len = 0;
s->cmdbuf_head = 0;
@@ -1228,10 +1229,25 @@ static const TypeInfo amdviPCI = {
.instance_size = sizeof(AMDVIPCIState),
};
+static void amdvi_iommu_memory_region_class_init(ObjectClass *klass, void *data)
+{
+ IOMMUMemoryRegionClass *imrc = IOMMU_MEMORY_REGION_CLASS(klass);
+
+ imrc->translate = amdvi_translate;
+ imrc->notify_flag_changed = amdvi_iommu_notify_flag_changed;
+}
+
+static const TypeInfo amdvi_iommu_memory_region_info = {
+ .parent = TYPE_IOMMU_MEMORY_REGION,
+ .name = TYPE_AMD_IOMMU_MEMORY_REGION,
+ .class_init = amdvi_iommu_memory_region_class_init,
+};
+
static void amdviPCI_register_types(void)
{
type_register_static(&amdviPCI);
type_register_static(&amdvi);
+ type_register_static(&amdvi_iommu_memory_region_info);
}
type_init(amdviPCI_register_types);
diff --git a/hw/i386/intel_iommu.c b/hw/i386/intel_iommu.c
index 11dba0e274..e398746b4b 100644
--- a/hw/i386/intel_iommu.c
+++ b/hw/i386/intel_iommu.c
@@ -2718,8 +2718,9 @@ VTDAddressSpace *vtd_find_add_as(IntelIOMMUState *s, PCIBus *bus, int devfn)
* vtd_sys_alias and intel_iommu regions. IR region is always
* enabled.
*/
- memory_region_init_iommu(&vtd_dev_as->iommu, OBJECT(s),
- &s->iommu_ops, "intel_iommu_dmar",
+ memory_region_init_iommu(&vtd_dev_as->iommu, sizeof(vtd_dev_as->iommu),
+ TYPE_INTEL_IOMMU_MEMORY_REGION, OBJECT(s),
+ "intel_iommu_dmar",
UINT64_MAX);
memory_region_init_alias(&vtd_dev_as->sys_alias, OBJECT(s),
"vtd_sys_alias", get_system_memory(),
@@ -2857,9 +2858,6 @@ static void vtd_init(IntelIOMMUState *s)
memset(s->w1cmask, 0, DMAR_REG_SIZE);
memset(s->womask, 0, DMAR_REG_SIZE);
- s->iommu_ops.translate = vtd_iommu_translate;
- s->iommu_ops.notify_flag_changed = vtd_iommu_notify_flag_changed;
- s->iommu_ops.replay = vtd_iommu_replay;
s->root = 0;
s->root_extended = false;
s->dmar_enabled = false;
@@ -3074,9 +3072,26 @@ static const TypeInfo vtd_info = {
.class_init = vtd_class_init,
};
+static void vtd_iommu_memory_region_class_init(ObjectClass *klass,
+ void *data)
+{
+ IOMMUMemoryRegionClass *imrc = IOMMU_MEMORY_REGION_CLASS(klass);
+
+ imrc->translate = vtd_iommu_translate;
+ imrc->notify_flag_changed = vtd_iommu_notify_flag_changed;
+ imrc->replay = vtd_iommu_replay;
+}
+
+static const TypeInfo vtd_iommu_memory_region_info = {
+ .parent = TYPE_IOMMU_MEMORY_REGION,
+ .name = TYPE_INTEL_IOMMU_MEMORY_REGION,
+ .class_init = vtd_iommu_memory_region_class_init,
+};
+
static void vtd_register_types(void)
{
type_register_static(&vtd_info);
+ type_register_static(&vtd_iommu_memory_region_info);
}
type_init(vtd_register_types)
diff --git a/hw/pci-host/apb.c b/hw/pci-host/apb.c
index 76a56ae29b..96e5d0b60d 100644
--- a/hw/pci-host/apb.c
+++ b/hw/pci-host/apb.c
@@ -133,6 +133,8 @@ typedef struct IOMMUState {
#define APB_DEVICE(obj) \
OBJECT_CHECK(APBState, (obj), TYPE_APB)
+#define TYPE_APB_IOMMU_MEMORY_REGION "pbm-iommu-memory-region"
+
typedef struct APBState {
PCIHostState parent_obj;
@@ -322,10 +324,6 @@ static IOMMUTLBEntry pbm_translate_iommu(IOMMUMemoryRegion *iommu, hwaddr addr,
return ret;
}
-static MemoryRegionIOMMUOps pbm_iommu_ops = {
- .translate = pbm_translate_iommu,
-};
-
static void iommu_config_write(void *opaque, hwaddr addr,
uint64_t val, unsigned size)
{
@@ -697,7 +695,8 @@ PCIBus *pci_apb_init(hwaddr special_base,
is = &d->iommu;
memset(is, 0, sizeof(IOMMUState));
- memory_region_init_iommu(&is->iommu, OBJECT(dev), &pbm_iommu_ops,
+ memory_region_init_iommu(&is->iommu, sizeof(is->iommu),
+ TYPE_APB_IOMMU_MEMORY_REGION, OBJECT(dev),
"iommu-apb", UINT64_MAX);
address_space_init(&is->iommu_as, MEMORY_REGION(&is->iommu), "pbm-as");
pci_setup_iommu(phb->bus, pbm_pci_dma_iommu, is);
@@ -860,11 +859,25 @@ static const TypeInfo pbm_pci_bridge_info = {
.class_init = pbm_pci_bridge_class_init,
};
+static void pbm_iommu_memory_region_class_init(ObjectClass *klass, void *data)
+{
+ IOMMUMemoryRegionClass *imrc = IOMMU_MEMORY_REGION_CLASS(klass);
+
+ imrc->translate = pbm_translate_iommu;
+}
+
+static const TypeInfo pbm_iommu_memory_region_info = {
+ .parent = TYPE_IOMMU_MEMORY_REGION,
+ .name = TYPE_APB_IOMMU_MEMORY_REGION,
+ .class_init = pbm_iommu_memory_region_class_init,
+};
+
static void pbm_register_types(void)
{
type_register_static(&pbm_host_info);
type_register_static(&pbm_pci_host_info);
type_register_static(&pbm_pci_bridge_info);
+ type_register_static(&pbm_iommu_memory_region_info);
}
type_init(pbm_register_types)
diff --git a/hw/ppc/spapr_iommu.c b/hw/ppc/spapr_iommu.c
index 6b6ced5710..d07b4b460d 100644
--- a/hw/ppc/spapr_iommu.c
+++ b/hw/ppc/spapr_iommu.c
@@ -248,12 +248,6 @@ static const VMStateDescription vmstate_spapr_tce_table = {
}
};
-static MemoryRegionIOMMUOps spapr_iommu_ops = {
- .translate = spapr_tce_translate_iommu,
- .get_min_page_size = spapr_tce_get_min_page_size,
- .notify_flag_changed = spapr_tce_notify_flag_changed,
-};
-
static int spapr_tce_table_realize(DeviceState *dev)
{
sPAPRTCETable *tcet = SPAPR_TCE_TABLE(dev);
@@ -266,7 +260,9 @@ static int spapr_tce_table_realize(DeviceState *dev)
memory_region_init(&tcet->root, tcetobj, tmp, UINT64_MAX);
snprintf(tmp, sizeof(tmp), "tce-iommu-%x", tcet->liobn);
- memory_region_init_iommu(&tcet->iommu, tcetobj, &spapr_iommu_ops, tmp, 0);
+ memory_region_init_iommu(&tcet->iommu, sizeof(tcet->iommu),
+ TYPE_SPAPR_IOMMU_MEMORY_REGION,
+ tcetobj, tmp, 0);
QLIST_INSERT_HEAD(&spapr_tce_tables, tcet, list);
@@ -639,9 +635,25 @@ static TypeInfo spapr_tce_table_info = {
.class_init = spapr_tce_table_class_init,
};
+static void spapr_iommu_memory_region_class_init(ObjectClass *klass, void *data)
+{
+ IOMMUMemoryRegionClass *imrc = IOMMU_MEMORY_REGION_CLASS(klass);
+
+ imrc->translate = spapr_tce_translate_iommu;
+ imrc->get_min_page_size = spapr_tce_get_min_page_size;
+ imrc->notify_flag_changed = spapr_tce_notify_flag_changed;
+}
+
+static const TypeInfo spapr_iommu_memory_region_info = {
+ .parent = TYPE_IOMMU_MEMORY_REGION,
+ .name = TYPE_SPAPR_IOMMU_MEMORY_REGION,
+ .class_init = spapr_iommu_memory_region_class_init,
+};
+
static void register_types(void)
{
type_register_static(&spapr_tce_table_info);
+ type_register_static(&spapr_iommu_memory_region_info);
}
type_init(register_types);
diff --git a/hw/s390x/s390-pci-bus.c b/hw/s390x/s390-pci-bus.c
index e4fc82cbe1..903b3cadc5 100644
--- a/hw/s390x/s390-pci-bus.c
+++ b/hw/s390x/s390-pci-bus.c
@@ -407,10 +407,6 @@ static IOMMUTLBEntry s390_translate_iommu(IOMMUMemoryRegion *mr, hwaddr addr,
return ret;
}
-static const MemoryRegionIOMMUOps s390_iommu_ops = {
- .translate = s390_translate_iommu,
-};
-
static S390PCIIOMMU *s390_pci_get_iommu(S390pciState *s, PCIBus *bus,
int devfn)
{
@@ -522,8 +518,9 @@ static const MemoryRegionOps s390_msi_ctrl_ops = {
void s390_pci_iommu_enable(S390PCIIOMMU *iommu)
{
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);
+ memory_region_init_iommu(&iommu->iommu_mr, sizeof(iommu->iommu_mr),
+ TYPE_S390_IOMMU_MEMORY_REGION, OBJECT(&iommu->mr),
+ name, iommu->pal + 1);
iommu->enabled = true;
memory_region_add_subregion(&iommu->mr, 0, MEMORY_REGION(&iommu->iommu_mr));
g_free(name);
@@ -1058,12 +1055,26 @@ static TypeInfo s390_pci_iommu_info = {
.instance_size = sizeof(S390PCIIOMMU),
};
+static void s390_iommu_memory_region_class_init(ObjectClass *klass, void *data)
+{
+ IOMMUMemoryRegionClass *imrc = IOMMU_MEMORY_REGION_CLASS(klass);
+
+ imrc->translate = s390_translate_iommu;
+}
+
+static const TypeInfo s390_iommu_memory_region_info = {
+ .parent = TYPE_IOMMU_MEMORY_REGION,
+ .name = TYPE_S390_IOMMU_MEMORY_REGION,
+ .class_init = s390_iommu_memory_region_class_init,
+};
+
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_register_static(&s390_iommu_memory_region_info);
}
type_init(s390_pci_register_types)
diff --git a/hw/s390x/s390-pci-inst.c b/hw/s390x/s390-pci-inst.c
index a53c29c487..b7beb8c36a 100644
--- a/hw/s390x/s390-pci-inst.c
+++ b/hw/s390x/s390-pci-inst.c
@@ -564,6 +564,7 @@ int rpcit_service_call(S390CPU *cpu, uint8_t r1, uint8_t r2)
hwaddr start, end;
IOMMUTLBEntry entry;
IOMMUMemoryRegion *iommu_mr;
+ IOMMUMemoryRegionClass *imrc;
cpu_synchronize_state(CPU(cpu));
@@ -623,8 +624,10 @@ int rpcit_service_call(S390CPU *cpu, uint8_t r1, uint8_t r2)
}
iommu_mr = &iommu->iommu_mr;
+ imrc = IOMMU_MEMORY_REGION_GET_CLASS(iommu_mr);
+
while (start < end) {
- entry = iommu_mr->iommu_ops->translate(iommu_mr, start, IOMMU_NONE);
+ entry = imrc->translate(iommu_mr, start, IOMMU_NONE);
if (!entry.translated_addr) {
pbdev->state = ZPCI_FS_ERROR;
diff --git a/memory.c b/memory.c
index 45e10e2e3b..69f697c20e 100644
--- a/memory.c
+++ b/memory.c
@@ -1506,19 +1506,20 @@ void memory_region_init_rom_device(MemoryRegion *mr,
mr->ram_block = qemu_ram_alloc(size, mr, errp);
}
-void memory_region_init_iommu(IOMMUMemoryRegion *iommu_mr,
+void memory_region_init_iommu(void *_iommu_mr,
+ size_t instance_size,
+ const char *mrtypename,
Object *owner,
- const MemoryRegionIOMMUOps *ops,
const char *name,
uint64_t size)
{
+ struct IOMMUMemoryRegion *iommu_mr;
struct MemoryRegion *mr;
- object_initialize(iommu_mr, sizeof(*iommu_mr), TYPE_IOMMU_MEMORY_REGION);
- mr = MEMORY_REGION(iommu_mr);
+ object_initialize(_iommu_mr, instance_size, mrtypename);
+ mr = MEMORY_REGION(_iommu_mr);
memory_region_do_init(mr, owner, name, size);
iommu_mr = IOMMU_MEMORY_REGION(mr);
- iommu_mr->iommu_ops = ops,
mr->terminates = true; /* then re-forwards */
QLIST_INIT(&iommu_mr->iommu_notify);
iommu_mr->iommu_notify_flags = IOMMU_NOTIFIER_NONE;
@@ -1620,16 +1621,16 @@ static void memory_region_update_iommu_notify_flags(IOMMUMemoryRegion *iommu_mr)
{
IOMMUNotifierFlag flags = IOMMU_NOTIFIER_NONE;
IOMMUNotifier *iommu_notifier;
+ IOMMUMemoryRegionClass *imrc = IOMMU_MEMORY_REGION_GET_CLASS(iommu_mr);
IOMMU_NOTIFIER_FOREACH(iommu_notifier, iommu_mr) {
flags |= iommu_notifier->notifier_flags;
}
- if (flags != iommu_mr->iommu_notify_flags &&
- iommu_mr->iommu_ops->notify_flag_changed) {
- iommu_mr->iommu_ops->notify_flag_changed(iommu_mr,
- iommu_mr->iommu_notify_flags,
- flags);
+ if (flags != iommu_mr->iommu_notify_flags && imrc->notify_flag_changed) {
+ imrc->notify_flag_changed(iommu_mr,
+ iommu_mr->iommu_notify_flags,
+ flags);
}
iommu_mr->iommu_notify_flags = flags;
@@ -1655,8 +1656,10 @@ void memory_region_register_iommu_notifier(MemoryRegion *mr,
uint64_t memory_region_iommu_get_min_page_size(IOMMUMemoryRegion *iommu_mr)
{
- if (iommu_mr->iommu_ops && iommu_mr->iommu_ops->get_min_page_size) {
- return iommu_mr->iommu_ops->get_min_page_size(iommu_mr);
+ IOMMUMemoryRegionClass *imrc = IOMMU_MEMORY_REGION_GET_CLASS(iommu_mr);
+
+ if (imrc->get_min_page_size) {
+ return imrc->get_min_page_size(iommu_mr);
}
return TARGET_PAGE_SIZE;
}
@@ -1664,19 +1667,20 @@ uint64_t memory_region_iommu_get_min_page_size(IOMMUMemoryRegion *iommu_mr)
void memory_region_iommu_replay(IOMMUMemoryRegion *iommu_mr, IOMMUNotifier *n)
{
MemoryRegion *mr = MEMORY_REGION(iommu_mr);
+ IOMMUMemoryRegionClass *imrc = IOMMU_MEMORY_REGION_GET_CLASS(iommu_mr);
hwaddr addr, granularity;
IOMMUTLBEntry iotlb;
/* If the IOMMU has its own replay callback, override */
- if (iommu_mr->iommu_ops->replay) {
- iommu_mr->iommu_ops->replay(iommu_mr, n);
+ if (imrc->replay) {
+ imrc->replay(iommu_mr, n);
return;
}
granularity = memory_region_iommu_get_min_page_size(iommu_mr);
for (addr = 0; addr < memory_region_size(mr); addr += granularity) {
- iotlb = iommu_mr->iommu_ops->translate(iommu_mr, addr, IOMMU_NONE);
+ iotlb = imrc->translate(iommu_mr, addr, IOMMU_NONE);
if (iotlb.perm != IOMMU_NONE) {
n->notify(n, &iotlb);
}
@@ -2855,8 +2859,10 @@ static const TypeInfo memory_region_info = {
static const TypeInfo iommu_memory_region_info = {
.parent = TYPE_MEMORY_REGION,
.name = TYPE_IOMMU_MEMORY_REGION,
+ .class_size = sizeof(IOMMUMemoryRegionClass),
.instance_size = sizeof(IOMMUMemoryRegion),
.instance_init = iommu_memory_region_initfn,
+ .abstract = true,
};
static void memory_register_types(void)
--
2.11.0
^ permalink raw reply related [flat|nested] 8+ messages in thread
* Re: [Qemu-devel] [PATCH qemu v9 1/2] memory/iommu: QOM'fy IOMMU MemoryRegion
2017-07-11 3:56 ` [Qemu-devel] [PATCH qemu v9 1/2] " Alexey Kardashevskiy
@ 2017-07-12 10:22 ` Cornelia Huck
2017-07-12 12:07 ` Greg Kurz
0 siblings, 1 reply; 8+ messages in thread
From: Cornelia Huck @ 2017-07-12 10:22 UTC (permalink / raw)
To: Alexey Kardashevskiy
Cc: qemu-devel, David Gibson, Philippe Mathieu-Daudé,
Peter Xu, Alex Williamson, Christian Borntraeger, Paolo Bonzini,
qemu-ppc
On Tue, 11 Jul 2017 13:56:19 +1000
Alexey Kardashevskiy <aik@ozlabs.ru> wrote:
> This defines new QOM object - IOMMUMemoryRegion - with MemoryRegion
> as a parent.
>
> This moves IOMMU-related fields from MR to IOMMU MR. However to avoid
> dymanic QOM casting in fast path (address_space_translate, etc),
> this adds an @is_iommu boolean flag to MR and provides new helper to
> do simple cast to IOMMU MR - memory_region_get_iommu. The flag
> is set in the instance init callback. This defines
> memory_region_is_iommu as memory_region_get_iommu()!=NULL.
>
> This switches MemoryRegion to IOMMUMemoryRegion in most places except
> the ones where MemoryRegion may be an alias.
>
> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
> Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
> ---
> Changes:
> v9:
> * added rb:David
>
> v8:
> * moved is_iommu flag closer to the beginning of the MemoryRegion struct
> * removed memory_region_init_iommu_type()
>
> v7:
> * rebased on top of the current upstream
>
> v6:
> * s/\<iommumr\>/iommu_mr/g
>
> v5:
> * fixed sparc64, first time in many years did run "./configure" without
> --target-list :-D Sorry for the noise though :(
>
> v4:
> * fixed alpha, mips64el and sparc
>
> v3:
> * rebased on sha1 81b2d5ceb0
>
> v2:
> * added mr->is_iommu
> * updated i386/x86_64/s390/sun
> ---
> hw/s390x/s390-pci-bus.h | 2 +-
> include/exec/memory.h | 55 ++++++++++++++--------
> include/hw/i386/intel_iommu.h | 2 +-
> include/hw/mips/mips.h | 2 +-
> include/hw/ppc/spapr.h | 3 +-
> include/hw/vfio/vfio-common.h | 2 +-
> include/qemu/typedefs.h | 1 +
> exec.c | 12 ++---
> hw/alpha/typhoon.c | 8 ++--
> hw/dma/rc4030.c | 8 ++--
> hw/i386/amd_iommu.c | 9 ++--
> hw/i386/intel_iommu.c | 17 +++----
> hw/mips/mips_jazz.c | 2 +-
> hw/pci-host/apb.c | 6 +--
> hw/ppc/spapr_iommu.c | 16 ++++---
> hw/s390x/s390-pci-bus.c | 6 +--
> hw/s390x/s390-pci-inst.c | 8 ++--
> hw/vfio/common.c | 12 +++--
> hw/vfio/spapr.c | 3 +-
> memory.c | 105 ++++++++++++++++++++++++++++--------------
> 20 files changed, 170 insertions(+), 109 deletions(-)
>
> @@ -1491,17 +1506,22 @@ void memory_region_init_rom_device(MemoryRegion *mr,
> mr->ram_block = qemu_ram_alloc(size, mr, errp);
> }
>
> -void memory_region_init_iommu(MemoryRegion *mr,
> +void memory_region_init_iommu(IOMMUMemoryRegion *iommu_mr,
> Object *owner,
> const MemoryRegionIOMMUOps *ops,
> const char *name,
> uint64_t size)
> {
> - memory_region_init(mr, owner, name, size);
> - mr->iommu_ops = ops,
> + struct MemoryRegion *mr;
> +
> + object_initialize(iommu_mr, sizeof(*iommu_mr), TYPE_IOMMU_MEMORY_REGION);
> + mr = MEMORY_REGION(iommu_mr);
> + memory_region_do_init(mr, owner, name, size);
> + iommu_mr = IOMMU_MEMORY_REGION(mr);
> + iommu_mr->iommu_ops = ops,
I'd finish with a semicolon instead.
Should this require ops != NULL? There are a number of places where
->iommu_ops is dereferenced unconditionally.
> mr->terminates = true; /* then re-forwards */
> - QLIST_INIT(&mr->iommu_notify);
> - mr->iommu_notify_flags = IOMMU_NOTIFIER_NONE;
> + QLIST_INIT(&iommu_mr->iommu_notify);
> + iommu_mr->iommu_notify_flags = IOMMU_NOTIFIER_NONE;
> }
>
> static void memory_region_finalize(Object *obj)
(...)
> -uint64_t memory_region_iommu_get_min_page_size(MemoryRegion *mr)
> +uint64_t memory_region_iommu_get_min_page_size(IOMMUMemoryRegion *iommu_mr)
> {
> - assert(memory_region_is_iommu(mr));
> - if (mr->iommu_ops && mr->iommu_ops->get_min_page_size) {
> - return mr->iommu_ops->get_min_page_size(mr);
> + if (iommu_mr->iommu_ops && iommu_mr->iommu_ops->get_min_page_size) {
I think this is the only place that actually checks for iommu_ops.
> + return iommu_mr->iommu_ops->get_min_page_size(iommu_mr);
> }
> return TARGET_PAGE_SIZE;
> }
The s390 conversions look fine.
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [Qemu-devel] [PATCH qemu v9 1/2] memory/iommu: QOM'fy IOMMU MemoryRegion
2017-07-12 10:22 ` Cornelia Huck
@ 2017-07-12 12:07 ` Greg Kurz
0 siblings, 0 replies; 8+ messages in thread
From: Greg Kurz @ 2017-07-12 12:07 UTC (permalink / raw)
To: Cornelia Huck
Cc: Alexey Kardashevskiy, Philippe Mathieu-Daudé,
Peter Xu, qemu-devel, Christian Borntraeger, Alex Williamson,
qemu-ppc, Paolo Bonzini, David Gibson
[-- Attachment #1: Type: text/plain, Size: 4912 bytes --]
On Wed, 12 Jul 2017 12:22:17 +0200
Cornelia Huck <cohuck@redhat.com> wrote:
> On Tue, 11 Jul 2017 13:56:19 +1000
> Alexey Kardashevskiy <aik@ozlabs.ru> wrote:
>
> > This defines new QOM object - IOMMUMemoryRegion - with MemoryRegion
> > as a parent.
> >
> > This moves IOMMU-related fields from MR to IOMMU MR. However to avoid
> > dymanic QOM casting in fast path (address_space_translate, etc),
> > this adds an @is_iommu boolean flag to MR and provides new helper to
> > do simple cast to IOMMU MR - memory_region_get_iommu. The flag
> > is set in the instance init callback. This defines
> > memory_region_is_iommu as memory_region_get_iommu()!=NULL.
> >
> > This switches MemoryRegion to IOMMUMemoryRegion in most places except
> > the ones where MemoryRegion may be an alias.
> >
> > Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
> > Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
> > ---
> > Changes:
> > v9:
> > * added rb:David
> >
> > v8:
> > * moved is_iommu flag closer to the beginning of the MemoryRegion struct
> > * removed memory_region_init_iommu_type()
> >
> > v7:
> > * rebased on top of the current upstream
> >
> > v6:
> > * s/\<iommumr\>/iommu_mr/g
> >
> > v5:
> > * fixed sparc64, first time in many years did run "./configure" without
> > --target-list :-D Sorry for the noise though :(
> >
> > v4:
> > * fixed alpha, mips64el and sparc
> >
> > v3:
> > * rebased on sha1 81b2d5ceb0
> >
> > v2:
> > * added mr->is_iommu
> > * updated i386/x86_64/s390/sun
> > ---
> > hw/s390x/s390-pci-bus.h | 2 +-
> > include/exec/memory.h | 55 ++++++++++++++--------
> > include/hw/i386/intel_iommu.h | 2 +-
> > include/hw/mips/mips.h | 2 +-
> > include/hw/ppc/spapr.h | 3 +-
> > include/hw/vfio/vfio-common.h | 2 +-
> > include/qemu/typedefs.h | 1 +
> > exec.c | 12 ++---
> > hw/alpha/typhoon.c | 8 ++--
> > hw/dma/rc4030.c | 8 ++--
> > hw/i386/amd_iommu.c | 9 ++--
> > hw/i386/intel_iommu.c | 17 +++----
> > hw/mips/mips_jazz.c | 2 +-
> > hw/pci-host/apb.c | 6 +--
> > hw/ppc/spapr_iommu.c | 16 ++++---
> > hw/s390x/s390-pci-bus.c | 6 +--
> > hw/s390x/s390-pci-inst.c | 8 ++--
> > hw/vfio/common.c | 12 +++--
> > hw/vfio/spapr.c | 3 +-
> > memory.c | 105 ++++++++++++++++++++++++++++--------------
> > 20 files changed, 170 insertions(+), 109 deletions(-)
> >
>
> > @@ -1491,17 +1506,22 @@ void memory_region_init_rom_device(MemoryRegion *mr,
> > mr->ram_block = qemu_ram_alloc(size, mr, errp);
> > }
> >
> > -void memory_region_init_iommu(MemoryRegion *mr,
> > +void memory_region_init_iommu(IOMMUMemoryRegion *iommu_mr,
> > Object *owner,
> > const MemoryRegionIOMMUOps *ops,
> > const char *name,
> > uint64_t size)
> > {
> > - memory_region_init(mr, owner, name, size);
> > - mr->iommu_ops = ops,
> > + struct MemoryRegion *mr;
> > +
> > + object_initialize(iommu_mr, sizeof(*iommu_mr), TYPE_IOMMU_MEMORY_REGION);
> > + mr = MEMORY_REGION(iommu_mr);
> > + memory_region_do_init(mr, owner, name, size);
> > + iommu_mr = IOMMU_MEMORY_REGION(mr);
> > + iommu_mr->iommu_ops = ops,
>
> I'd finish with a semicolon instead.
>
Heh, this nit has been there since:
commit 30951157441aed950ad8ca326500b4986d431c7a
Author: Avi Kivity <avi.kivity@gmail.com>
Date: Tue Oct 30 13:47:46 2012 +0200
memory: iommu support
> Should this require ops != NULL? There are a number of places where
> ->iommu_ops is dereferenced unconditionally.
>
> > mr->terminates = true; /* then re-forwards */
> > - QLIST_INIT(&mr->iommu_notify);
> > - mr->iommu_notify_flags = IOMMU_NOTIFIER_NONE;
> > + QLIST_INIT(&iommu_mr->iommu_notify);
> > + iommu_mr->iommu_notify_flags = IOMMU_NOTIFIER_NONE;
> > }
> >
> > static void memory_region_finalize(Object *obj)
>
> (...)
>
> > -uint64_t memory_region_iommu_get_min_page_size(MemoryRegion *mr)
> > +uint64_t memory_region_iommu_get_min_page_size(IOMMUMemoryRegion *iommu_mr)
> > {
> > - assert(memory_region_is_iommu(mr));
> > - if (mr->iommu_ops && mr->iommu_ops->get_min_page_size) {
> > - return mr->iommu_ops->get_min_page_size(mr);
> > + if (iommu_mr->iommu_ops && iommu_mr->iommu_ops->get_min_page_size) {
>
> I think this is the only place that actually checks for iommu_ops.
>
> > + return iommu_mr->iommu_ops->get_min_page_size(iommu_mr);
> > }
> > return TARGET_PAGE_SIZE;
> > }
>
> The s390 conversions look fine.
>
[-- Attachment #2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 181 bytes --]
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [Qemu-devel] [PATCH qemu v9 2/2] memory/iommu: introduce IOMMUMemoryRegionClass
2017-07-11 3:56 ` [Qemu-devel] [PATCH qemu v9 2/2] memory/iommu: introduce IOMMUMemoryRegionClass Alexey Kardashevskiy
@ 2017-07-12 13:18 ` Cornelia Huck
2017-07-16 6:45 ` David Gibson
1 sibling, 0 replies; 8+ messages in thread
From: Cornelia Huck @ 2017-07-12 13:18 UTC (permalink / raw)
To: Alexey Kardashevskiy
Cc: qemu-devel, David Gibson, Philippe Mathieu-Daudé,
Peter Xu, Alex Williamson, Christian Borntraeger, Paolo Bonzini,
qemu-ppc
On Tue, 11 Jul 2017 13:56:20 +1000
Alexey Kardashevskiy <aik@ozlabs.ru> wrote:
> This finishes QOM'fication of IOMMUMemoryRegion by introducing
> a IOMMUMemoryRegionClass. This also provides a fastpath analog for
> IOMMU_MEMORY_REGION_GET_CLASS().
>
> This makes IOMMUMemoryRegion an abstract class.
>
> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
> ---
> Changes:
> v9:
> * moved IOMMU MR typenames next to respective IOMMU device typenames
> * renamed few definitions and functions to match the rest of the code
> (for example intel_vtd_iommu_memory_region_class_init -> vtd_iommu_memory_region_class_init
> as the rest of that file uses "vtd_" as a prefix)
>
> v8:
> * first appearance
> ---
> hw/i386/amd_iommu.h | 5 ++---
> hw/s390x/s390-pci-bus.h | 1 +
> include/exec/memory.h | 45 +++++++++++++++++++++++++++++++++----------
> include/hw/i386/intel_iommu.h | 3 ++-
> include/hw/ppc/spapr.h | 4 ++++
> exec.c | 6 ++++--
> hw/alpha/typhoon.c | 23 +++++++++++++++++-----
> hw/dma/rc4030.c | 26 +++++++++++++++++++------
> hw/i386/amd_iommu.c | 24 +++++++++++++++++++----
> hw/i386/intel_iommu.c | 25 +++++++++++++++++++-----
> hw/pci-host/apb.c | 23 +++++++++++++++++-----
> hw/ppc/spapr_iommu.c | 26 ++++++++++++++++++-------
> hw/s390x/s390-pci-bus.c | 23 ++++++++++++++++------
> hw/s390x/s390-pci-inst.c | 5 ++++-
> memory.c | 36 +++++++++++++++++++---------------
> 15 files changed, 205 insertions(+), 70 deletions(-)
(...)
> diff --git a/memory.c b/memory.c
> index 45e10e2e3b..69f697c20e 100644
> --- a/memory.c
> +++ b/memory.c
> @@ -1506,19 +1506,20 @@ void memory_region_init_rom_device(MemoryRegion *mr,
> mr->ram_block = qemu_ram_alloc(size, mr, errp);
> }
>
> -void memory_region_init_iommu(IOMMUMemoryRegion *iommu_mr,
> +void memory_region_init_iommu(void *_iommu_mr,
> + size_t instance_size,
> + const char *mrtypename,
> Object *owner,
> - const MemoryRegionIOMMUOps *ops,
> const char *name,
> uint64_t size)
> {
> + struct IOMMUMemoryRegion *iommu_mr;
> struct MemoryRegion *mr;
>
> - object_initialize(iommu_mr, sizeof(*iommu_mr), TYPE_IOMMU_MEMORY_REGION);
> - mr = MEMORY_REGION(iommu_mr);
> + object_initialize(_iommu_mr, instance_size, mrtypename);
> + mr = MEMORY_REGION(_iommu_mr);
> memory_region_do_init(mr, owner, name, size);
> iommu_mr = IOMMU_MEMORY_REGION(mr);
> - iommu_mr->iommu_ops = ops,
Ah, here the comma is gone anyway :)
> mr->terminates = true; /* then re-forwards */
> QLIST_INIT(&iommu_mr->iommu_notify);
> iommu_mr->iommu_notify_flags = IOMMU_NOTIFIER_NONE;
(...)
> @@ -1655,8 +1656,10 @@ void memory_region_register_iommu_notifier(MemoryRegion *mr,
>
> uint64_t memory_region_iommu_get_min_page_size(IOMMUMemoryRegion *iommu_mr)
> {
> - if (iommu_mr->iommu_ops && iommu_mr->iommu_ops->get_min_page_size) {
> - return iommu_mr->iommu_ops->get_min_page_size(iommu_mr);
> + IOMMUMemoryRegionClass *imrc = IOMMU_MEMORY_REGION_GET_CLASS(iommu_mr);
> +
> + if (imrc->get_min_page_size) {
> + return imrc->get_min_page_size(iommu_mr);
And this voids my other complaint for the previous patch as well.
> }
> return TARGET_PAGE_SIZE;
> }
s390 parts look fine.
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [Qemu-devel] [PATCH qemu v9 0/2] memory/iommu: QOM'fy IOMMU MemoryRegion
2017-07-11 3:56 [Qemu-devel] [PATCH qemu v9 0/2] memory/iommu: QOM'fy IOMMU MemoryRegion Alexey Kardashevskiy
2017-07-11 3:56 ` [Qemu-devel] [PATCH qemu v9 1/2] " Alexey Kardashevskiy
2017-07-11 3:56 ` [Qemu-devel] [PATCH qemu v9 2/2] memory/iommu: introduce IOMMUMemoryRegionClass Alexey Kardashevskiy
@ 2017-07-12 13:20 ` Cornelia Huck
2 siblings, 0 replies; 8+ messages in thread
From: Cornelia Huck @ 2017-07-12 13:20 UTC (permalink / raw)
To: Alexey Kardashevskiy
Cc: qemu-devel, David Gibson, Philippe Mathieu-Daudé,
Peter Xu, Alex Williamson, Christian Borntraeger, Paolo Bonzini,
qemu-ppc
On Tue, 11 Jul 2017 13:56:18 +1000
Alexey Kardashevskiy <aik@ozlabs.ru> wrote:
> Here is a couple of patches to QOM'fy IOMMU memory regions.
>
> I have made them in order to proceed with in-kernel TCE stuff acceleration
> enablement which sort of depends on sPAPR IOMMU MR being QOM'ed.
>
>
> This is based on sha1
> 3f0602927b Peter Maydell "Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20170613' into staging".
>
> Please comment. Thanks.
>
>
> Changes:
> v9:
> * reworked 2/2 to follow the existing function naming style
>
> v8:
> * now 2 patches
>
> This is based on sha1
> b113658675 Peter Maydell "Merge remote-tracking branch 'remotes/borntraeger/tags/s390x-20170706' into staging".
>
> Please comment. Thanks.
While the patches seem sane to me at a glance, I haven't done a
in-depth review. But for the s390 parts:
Acked-by: Cornelia Huck <cohuck@redhat.com>
for both patches.
>
>
>
> Alexey Kardashevskiy (2):
> memory/iommu: QOM'fy IOMMU MemoryRegion
> memory/iommu: introduce IOMMUMemoryRegionClass
>
> hw/i386/amd_iommu.h | 5 +-
> hw/s390x/s390-pci-bus.h | 3 +-
> include/exec/memory.h | 94 +++++++++++++++++++++++++----------
> include/hw/i386/intel_iommu.h | 5 +-
> include/hw/mips/mips.h | 2 +-
> include/hw/ppc/spapr.h | 7 ++-
> include/hw/vfio/vfio-common.h | 2 +-
> include/qemu/typedefs.h | 1 +
> exec.c | 14 +++---
> hw/alpha/typhoon.c | 31 +++++++++---
> hw/dma/rc4030.c | 34 +++++++++----
> hw/i386/amd_iommu.c | 33 +++++++++---
> hw/i386/intel_iommu.c | 42 +++++++++++-----
> hw/mips/mips_jazz.c | 2 +-
> hw/pci-host/apb.c | 29 ++++++++---
> hw/ppc/spapr_iommu.c | 42 ++++++++++------
> hw/s390x/s390-pci-bus.c | 29 +++++++----
> hw/s390x/s390-pci-inst.c | 11 ++--
> hw/vfio/common.c | 12 +++--
> hw/vfio/spapr.c | 3 +-
> memory.c | 113 ++++++++++++++++++++++++++++--------------
> 21 files changed, 355 insertions(+), 159 deletions(-)
>
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [Qemu-devel] [PATCH qemu v9 2/2] memory/iommu: introduce IOMMUMemoryRegionClass
2017-07-11 3:56 ` [Qemu-devel] [PATCH qemu v9 2/2] memory/iommu: introduce IOMMUMemoryRegionClass Alexey Kardashevskiy
2017-07-12 13:18 ` Cornelia Huck
@ 2017-07-16 6:45 ` David Gibson
1 sibling, 0 replies; 8+ messages in thread
From: David Gibson @ 2017-07-16 6:45 UTC (permalink / raw)
To: Alexey Kardashevskiy
Cc: qemu-devel, Philippe Mathieu-Daudé,
Peter Xu, Alex Williamson, Christian Borntraeger, Cornelia Huck,
Paolo Bonzini, qemu-ppc
[-- Attachment #1: Type: text/plain, Size: 926 bytes --]
On Tue, Jul 11, 2017 at 01:56:20PM +1000, Alexey Kardashevskiy wrote:
> This finishes QOM'fication of IOMMUMemoryRegion by introducing
> a IOMMUMemoryRegionClass. This also provides a fastpath analog for
> IOMMU_MEMORY_REGION_GET_CLASS().
>
> This makes IOMMUMemoryRegion an abstract class.
>
> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
with the exception of one miniscule nit:
[snip]
> +/**
> + * memory_region_get_iommu_class_nocheck: returns iommu memory region class
> + * if an iommu or NULL if not
> + *
> + * Returns pointer to IOMMUMemoryRegioniClass if a memory region is an iommu,
Typo ^
--
David Gibson | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
| _way_ _around_!
http://www.ozlabs.org/~dgibson
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^ permalink raw reply [flat|nested] 8+ messages in thread
end of thread, other threads:[~2017-07-16 6:46 UTC | newest]
Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2017-07-11 3:56 [Qemu-devel] [PATCH qemu v9 0/2] memory/iommu: QOM'fy IOMMU MemoryRegion Alexey Kardashevskiy
2017-07-11 3:56 ` [Qemu-devel] [PATCH qemu v9 1/2] " Alexey Kardashevskiy
2017-07-12 10:22 ` Cornelia Huck
2017-07-12 12:07 ` Greg Kurz
2017-07-11 3:56 ` [Qemu-devel] [PATCH qemu v9 2/2] memory/iommu: introduce IOMMUMemoryRegionClass Alexey Kardashevskiy
2017-07-12 13:18 ` Cornelia Huck
2017-07-16 6:45 ` David Gibson
2017-07-12 13:20 ` [Qemu-devel] [PATCH qemu v9 0/2] memory/iommu: QOM'fy IOMMU MemoryRegion Cornelia Huck
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