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[Qemu-ppc] [PATCH qemu v7 02/14] vmstate: Define VARRAY with VMS_ALLOC
From: |
Alexey Kardashevskiy |
Subject: |
[Qemu-ppc] [PATCH qemu v7 02/14] vmstate: Define VARRAY with VMS_ALLOC |
Date: |
Sat, 25 Apr 2015 22:24:32 +1000 |
This allows dynamic allocation for migrating arrays.
Already existing VMSTATE_VARRAY_UINT32 requires an array to be
pre-allocated, however there are cases when the size is not known in
advance and there is no real need to enforce it.
This defines another variant of VMSTATE_VARRAY_UINT32 with WMS_ALLOC
flag which tells the receiving side to allocate memory for the array
before receiving the data.
The first user of it is a dynamic DMA window which existence and size
are totally dynamic.
Signed-off-by: Alexey Kardashevskiy <address@hidden>
Reviewed-by: David Gibson <address@hidden>
---
include/migration/vmstate.h | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/include/migration/vmstate.h b/include/migration/vmstate.h
index bc7616a..73b9d67 100644
--- a/include/migration/vmstate.h
+++ b/include/migration/vmstate.h
@@ -299,6 +299,16 @@ extern const VMStateInfo vmstate_info_bitmap;
.offset = vmstate_offset_pointer(_state, _field, _type), \
}
+#define VMSTATE_VARRAY_UINT32_ALLOC(_field, _state, _field_num, _version,
_info, _type) {\
+ .name = (stringify(_field)), \
+ .version_id = (_version), \
+ .num_offset = vmstate_offset_value(_state, _field_num, uint32_t),\
+ .info = &(_info), \
+ .size = sizeof(_type), \
+ .flags = VMS_VARRAY_UINT32|VMS_POINTER|VMS_ALLOC, \
+ .offset = vmstate_offset_pointer(_state, _field, _type), \
+}
+
#define VMSTATE_VARRAY_UINT16_UNSAFE(_field, _state, _field_num, _version,
_info, _type) {\
.name = (stringify(_field)), \
.version_id = (_version), \
--
2.0.0
- [Qemu-ppc] [PATCH qemu v7 11/14] vfio: spapr: Add SPAPR IOMMU v2 support (DMA memory preregistering), (continued)
- [Qemu-ppc] [PATCH qemu v7 11/14] vfio: spapr: Add SPAPR IOMMU v2 support (DMA memory preregistering), Alexey Kardashevskiy, 2015/04/25
- [Qemu-ppc] [PATCH qemu v7 12/14] spapr: Add pseries-2.4 machine, Alexey Kardashevskiy, 2015/04/25
- [Qemu-ppc] [PATCH qemu v7 09/14] spapr_vfio_pci: Remove redundant spapr-pci-vfio-host-bridge, Alexey Kardashevskiy, 2015/04/25
- [Qemu-ppc] [PATCH qemu v7 10/14] linux headers update for DDW on SPAPR, Alexey Kardashevskiy, 2015/04/25
- [Qemu-ppc] [PATCH qemu v7 14/14] vfio: Enable DDW ioctls to VFIO IOMMU driver, Alexey Kardashevskiy, 2015/04/25
- [Qemu-ppc] [PATCH qemu v7 06/14] spapr_iommu: Introduce "enabled" state for TCE table, Alexey Kardashevskiy, 2015/04/25
- [Qemu-ppc] [PATCH qemu v7 07/14] spapr_iommu: Add root memory region, Alexey Kardashevskiy, 2015/04/25
- [Qemu-ppc] [PATCH qemu v7 05/14] spapr_pci: Convert finish_realize() to dma_capabilities_update()+dma_init_window(), Alexey Kardashevskiy, 2015/04/25
- [Qemu-ppc] [PATCH qemu v7 03/14] vfio: spapr: Move SPAPR-related code to a separate file, Alexey Kardashevskiy, 2015/04/25
- [Qemu-ppc] [PATCH qemu v7 04/14] spapr_pci_vfio: Enable multiple groups per container, Alexey Kardashevskiy, 2015/04/25
- [Qemu-ppc] [PATCH qemu v7 02/14] vmstate: Define VARRAY with VMS_ALLOC,
Alexey Kardashevskiy <=
- [Qemu-ppc] [PATCH qemu v7 01/14] spapr_pci: Finish making find_phb()/find_dev() public, Alexey Kardashevskiy, 2015/04/25