| Commit message (Collapse) | Author | Age | Files | Lines |
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Mark all files used in a standard build of bin-x86_64-efi/snponly.efi
as permitted for UEFI Secure Boot. These files represent the core
functionality of iPXE that is guaranteed to have been included in
every binary that was previously subject to a security review and
signed by Microsoft. It is therefore legitimate to assume that at
least these files have already been reviewed to the required standard
multiple times.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
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Create a generic model of a heap as a list of free blocks with
optional methods for growing and shrinking the heap.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
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Remove the last remaining traces of the concept of a user pointer,
leaving iPXE with a simpler and cleaner memory model that implicitly
assumes that all memory locations can be reached through pointer
dereferences.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
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Signed-off-by: Michael Brown <mcb30@ipxe.org>
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Remove the intermediate concept of a user pointer from physical
address conversions, leaving virt_to_phys() and phys_to_virt() as the
directly implemented functions.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
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The user_to_virt() function is now a straightforward wrapper around
addition, with the addend almost invariably being zero.
Remove this redundant wrapper.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
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The memcpy_user(), memmove_user(), memcmp_user(), memset_user(), and
strlen_user() functions are now just straightforward wrappers around
the corresponding standard library functions.
Remove these redundant wrappers.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
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The userptr_add() and userptr_diff() functions are now just
straightforward wrappers around addition and subtraction.
Remove these redundant wrappers.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
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Allow for the possibility of userptr_t becoming a pointer type by
adding explicit casts where necessary.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
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Clarify the intended usage of userptr_sub() by renaming it to
userptr_diff() (to avoid confusion with userptr_add()), and fix the
existing call sites that erroneously use userptr_sub() to subtract an
offset from a userptr_t value.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
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For symmetry with the stub user_to_phys() implementation, provide
phys_to_user() with the same underlying assumption that virtual
addresses are physical (since there is no way to know the real
physical address when running as a Linux userspace executable).
Signed-off-by: Michael Brown <mcb30@ipxe.org>
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Rewrite (and relicense) the header files which are included in all
builds of iPXE (including non-Linux builds).
Signed-off-by: Michael Brown <mcb30@ipxe.org>
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Signed-off-by: Michael Brown <mcb30@ipxe.org>
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Signed-off-by: Michael Brown <mcb30@ipxe.org>
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Add user access API for linux.
On linux userspace virtual == user == phys addresses. Physical
addresses also being the same is wrong, but there is no general way of
converting userspace addresses to physical as what appears to be
contiguous in userspace is physically fragmented. Currently only the
DMA memory is special-cased, but its conversion to bus addresses is
done in phys_to_bus. This is known to break virtio as it is passing
phys addresses to the virtual device.
Signed-off-by: Piotr Jaroszyński <p.jaroszynski@gmail.com>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
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