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[fb] Create fb driver

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Create a new framebuffer driver. Also hackily passing frame buffer size
in the list of init handles to all processes and mapping the framebuffer
into all processes. Changed bootloader passing frame buffer as a module
to its own struct.
This commit is contained in:
Justin C. Miller
2020-12-27 18:49:38 -08:00
parent 7bdde2d359
commit 5787aff866
15 changed files with 170 additions and 71 deletions
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6
src/kernel/vm_space.cpp
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@@ -175,8 +175,10 @@ vm_space::page_in(const vm_area &vma, uintptr_t offset, uintptr_t phys, size_t c
page_table::iterator it {virt, m_pml4};
for (size_t i = 0; i < count; ++i) {
it.entry(page_table::level::pt) =
(phys + i * frame_size) | flags;
uint64_t &entry = it.entry(page_table::level::pt);
entry = (phys + i * frame_size) | flags;
log::debug(logs::paging, "Setting entry for %016llx: %016llx [%04llx]",
it.vaddress(), (phys + i * frame_size), flags);
++it;
}
}