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[Qemu-devel] [PULL 03/26] vmstate: Define VARRAY with VMS_ALLOC
From: |
David Gibson |
Subject: |
[Qemu-devel] [PULL 03/26] vmstate: Define VARRAY with VMS_ALLOC |
Date: |
Tue, 7 Jun 2016 20:47:50 +1000 |
From: Alexey Kardashevskiy <address@hidden>
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>
Reviewed-by: Thomas Huth <address@hidden>
Signed-off-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 30ecc44..6c65811 100644
--- a/include/migration/vmstate.h
+++ b/include/migration/vmstate.h
@@ -386,6 +386,16 @@ 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), \
--
2.5.5
- [Qemu-devel] [PULL 00/26] ppc-for-2.7 queue 20160607, David Gibson, 2016/06/07
- [Qemu-devel] [PULL 03/26] vmstate: Define VARRAY with VMS_ALLOC,
David Gibson <=
- [Qemu-devel] [PULL 23/26] ppc: Fix mtmsr decoding, David Gibson, 2016/06/07
- [Qemu-devel] [PULL 14/26] spapr_pci: Drop cannot_instantiate_with_device_add_yet=false, David Gibson, 2016/06/07
- [Qemu-devel] [PULL 12/26] ppc: Fix hreg_store_msr() so that non-HV mode cannot alter MSR:HV, David Gibson, 2016/06/07
- [Qemu-devel] [PULL 04/26] spapr_iommu: Introduce "enabled" state for TCE table, David Gibson, 2016/06/07
- [Qemu-devel] [PULL 06/26] spapr_iommu: Add root memory region, David Gibson, 2016/06/07
- [Qemu-devel] [PULL 20/26] ppc: Batch TLB flushes on 32-bit 6xx/7xx/7xxx in hash mode, David Gibson, 2016/06/07
- [Qemu-devel] [PULL 24/26] ppc: Fix slbia decode, David Gibson, 2016/06/07
- [Qemu-devel] [PULL 25/26] ppc: Add missing slbfee. instruction on ppc64 BookS processors, David Gibson, 2016/06/07
- [Qemu-devel] [PULL 02/26] kvm: API to obtain max supported mem slots, David Gibson, 2016/06/07
- [Qemu-devel] [PULL 19/26] ppc: Fix tlb invalidations on 6xx/7xx/7xxx 32-bit processors, David Gibson, 2016/06/07