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Add AnonymousVMObject::create_with_physical_page()

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This can be used to create a VMObject for a single PhysicalPage.
This commit is contained in:
Andreas Kling 2020-01-20 13:07:17 +01:00
parent 4ebff10bde
commit a0b716cfc5
2 changed files with 8 additions and 0 deletions
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7
Kernel/VM/AnonymousVMObject.cpp
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@ -37,6 +37,13 @@ NonnullRefPtr<AnonymousVMObject> AnonymousVMObject::create_for_physical_range(Ph
return adopt(*new AnonymousVMObject(paddr, size)); return adopt(*new AnonymousVMObject(paddr, size));
} }
NonnullRefPtr<AnonymousVMObject> AnonymousVMObject::create_with_physical_page(PhysicalPage& page)
{
auto vmobject = create_with_size(PAGE_SIZE);
vmobject->m_physical_pages[0] = page;
return vmobject;
}
AnonymousVMObject::AnonymousVMObject(size_t size) AnonymousVMObject::AnonymousVMObject(size_t size)
: VMObject(size) : VMObject(size)
{ {

1
Kernel/VM/AnonymousVMObject.h
View file

@ -35,6 +35,7 @@ public:
static NonnullRefPtr<AnonymousVMObject> create_with_size(size_t); static NonnullRefPtr<AnonymousVMObject> create_with_size(size_t);
static NonnullRefPtr<AnonymousVMObject> create_for_physical_range(PhysicalAddress, size_t); static NonnullRefPtr<AnonymousVMObject> create_for_physical_range(PhysicalAddress, size_t);
static NonnullRefPtr<AnonymousVMObject> create_with_physical_page(PhysicalPage&);
virtual NonnullRefPtr<VMObject> clone() override; virtual NonnullRefPtr<VMObject> clone() override;
protected: protected: