1ccf87165e
This adds support for new RISCV_EFI_BOOT_PROTOCOL to communicate the boot hart ID to bootloader/kernel on RISC-V UEFI platforms. The specification of the protocol is hosted at: https://github.com/riscv-non-isa/riscv-uefi Signed-off-by: Sunil V L <sunilvl@ventanamicro.com> Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
25 lines
588 B
C
25 lines
588 B
C
/* SPDX-License-Identifier: GPL-2.0+ */
|
|
/*
|
|
* RISCV_EFI_BOOT_PROTOCOL
|
|
*
|
|
* Copyright (c) 2022 Ventana Micro Systems Inc
|
|
*/
|
|
|
|
#include <efi_api.h>
|
|
|
|
#define RISCV_EFI_BOOT_PROTOCOL_REVISION 0x00010000
|
|
|
|
/**
|
|
* struct riscv_efi_boot_protocol - RISCV_EFI_BOOT_PROTOCOL
|
|
* @revision: Version of the protocol implemented
|
|
* @get_boot_hartid: Get the boot hart ID
|
|
*/
|
|
struct riscv_efi_boot_protocol {
|
|
u64 revision;
|
|
|
|
efi_status_t (EFIAPI * get_boot_hartid) (struct riscv_efi_boot_protocol *this,
|
|
efi_uintn_t *boot_hartid);
|
|
};
|
|
|
|
extern struct riscv_efi_boot_protocol riscv_efi_boot_prot;
|