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[efi] Provide a multiprocessor API for EFI

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Provide an implementation of the iPXE multiprocessor API for EFI,
based on using EFI_MP_SERVICES to start up a wrapper function on all
application processors.

Note that the processor numbers used by EFI_MP_SERVICES are opaque
integers that bear no relation to the underlying CPU identity
(e.g. the APIC ID), and so we must rely on our own (architecture-
specific) implementation to determine the relevant CPU identifiers.

Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2024-03-13 15:16:47 +00:00
parent 1ab4d3079d
commit 89bb926a04
6 changed files with 821 additions and 1 deletions
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src/config/defaults/efi.h
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@@ -25,7 +25,7 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
#define REBOOT_EFI
#define ACPI_EFI
#define FDT_EFI
#define MPAPI_NULL
#define MPAPI_EFI
#define NET_PROTO_IPV6 /* IPv6 protocol */
#define NET_PROTO_LLDP /* Link Layer Discovery protocol */