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Kernel: Consolidate API for creating AnonymousVMObject with given pages

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We don't need to have a dedicated API for creating a VMObject with a
single page, the multi-page API option works in all cases.

Also make the API take a Span<NonnullRefPtr<PhysicalPage>> instead of
a NonnullRefPtrVector<PhysicalPage>.
This commit is contained in:
Andreas Kling 2021-07-22 09:03:13 +02:00
parent 9e15708aa0
commit 5217875f6a
7 changed files with 10 additions and 23 deletions
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3
Kernel/Devices/SB16.cpp
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@ -237,7 +237,8 @@ KResultOr<size_t> SB16::write(FileDescription&, u64, const UserOrKernelBuffer& d
auto page = MM.allocate_supervisor_physical_page();
if (!page)
return ENOMEM;
auto vmobject = AnonymousVMObject::try_create_with_physical_page(*page);
auto nonnull_page = page.release_nonnull();
auto vmobject = AnonymousVMObject::try_create_with_physical_pages({ &nonnull_page, 1 });
if (!vmobject)
return ENOMEM;
m_dma_region = MM.allocate_kernel_region_with_vmobject(*vmobject, PAGE_SIZE, "SB16 DMA buffer", Region::Access::Write);