openslx-ng/ipxe.git/src/arch/x86/include, branch openslx

[build] Mark known reviewed files as permitted for UEFI Secure Boot

2026-01-14T16:10:29+00:00

Some past security reviews carried out for UEFI Secure Boot signing submissions have covered specific drivers or functional areas of iPXE. Mark all of the files comprising these areas as permitted for UEFI Secure Boot. Signed-off-by: Michael Brown

[build] Mark core files as permitted for UEFI Secure Boot

2026-01-14T13:25:34+00:00

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

[crypto] Allow for zero-length big integer literals

2025-12-29T14:01:46+00:00

Ensure that zero-length big integer literals are treated as containing a zero value. Avoid tests on every big integer arithmetic operation by ensuring that bigint_required_size() always returns a non-zero value: the zero-length tests can therefore be restricted to only bigint_init() and bigint_done(). Signed-off-by: Michael Brown

[pci] Allow probing permission to vary by range

2025-11-24T23:16:32+00:00

Make pci_can_probe() part of the runtime selectable PCI I/O API, and defer this check to the per-range API. Signed-off-by: Michael Brown

[pci] Use linker tables for runtime selectable PCI APIs

2025-11-24T20:54:01+00:00

Use the linker table mechanism to enumerate the underlying PCI I/O APIs, to allow PCIAPI_CLOUD to become architecture-independent code. Signed-off-by: Michael Brown

[ioapi] Allow iounmap() to be called for port I/O addresses

2025-11-05T19:33:53+00:00

Allow code using the combined MMIO and port I/O accessors to safely call iounmap() to unmap the MMIO or port I/O region. In the virtual offset I/O mapping API as used for UEFI, 32-bit BIOS, and 32-bit RISC-V SBI, iounmap() is a no-op anyway. In 64-bit RISC-V SBI, we have no concept of port I/O and so the issue is moot. This leaves only 64-bit BIOS, where it suffices to simply do nothing for any pages outside of the chosen MMIO virtual address range. For symmetry, we implement the equivalent change in the very closely related RISC-V page management code. Signed-off-by: Michael Brown

[uart] Support 16550 UARTs accessed via either MMIO or port I/O

2025-11-04T21:14:41+00:00

Use the combined accessors ioread8() and iowrite8() to read and write 16550 UART registers, to allow the decision between using MMIO and port I/O to be made at runtime. Minimise the increase in code size for x86 by ignoring the register shift, since this is essentially used only for non-x86 SoCs. Signed-off-by: Michael Brown

[uart] Allow for dynamically registered 16550 UARTs

2025-06-21T22:34:32+00:00

Use the generic UART driver-private data pointer, rather than embedding the generic UART within the 16550 UART structure. Signed-off-by: Michael Brown

[uart] Allow for the existence of non-16550 UARTs

2025-06-20T11:52:04+00:00

Remove the assumption that all platforms use a fixed number of 16550 UARTs identifiable by a simple numeric index. Create an abstraction allowing for dynamic instantiation and registration of any number of arbitrary UART models. The common case of the serial console on x86 uses a single fixed UART specified at compile time. Avoid unnecessarily dragging in the dynamic instantiation code in this use case by allowing COMCONSOLE to refer to a single static UART object representing the relevant port. When selecting a UART by command-line argument (as used in the "gdbstub serial " command), allow the UART to be specified as either a numeric index (to retain backwards compatiblity) or a case-insensitive port name such as "COM2". Signed-off-by: Michael Brown

[initrd] Move initrd reshuffling to be architecture-independent code

2025-05-21T11:12:16+00:00

There is nothing x86-specific in initrd.c, and a variant of the reshuffling logic will be required for executing bare-metal kernels on RISC-V and AArch64. Signed-off-by: Michael Brown