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ACRN:DM: Add one API to query the memfd/offset for the given GPA

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After using the memfd to allocate memory for guest vm, it needs to
query the offset in memfd for the given GPA. In order to search the
memfd/offset, the added memory_region from memfd needs to be kept in
one arrary.

Tracked-On: #7210

Acked-by: Wang Yu <yu1.wang@intel.com>
Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
This commit is contained in:
Zhao Yakui
2022-04-01 10:56:47 +08:00
committed by acrnsi-robot
parent a46b0058d8
commit 3645a9557d
2 changed files with 58 additions and 0 deletions
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6
devicemodel/include/vmmapi.h
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@@ -89,6 +89,12 @@ struct vm_isa_irq {
int ioapic_irq;
};
struct vm_mem_region {
uint64_t fd_offset;
int fd;
};
bool vm_find_memfd_region(struct vmctx *ctx, vm_paddr_t gpa,
struct vm_mem_region *ret_region);
/*
* Create a device memory segment identified by 'segid'.
*