From f1428044084cf04e545cd4f5d67ad68adf3f7873 Mon Sep 17 00:00:00 2001 From: Sunil V L Date: Fri, 28 Jan 2022 20:48:44 +0530 Subject: efi_loader: Enable RISCV_EFI_BOOT_PROTOCOL support 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 Reviewed-by: Heinrich Schuchardt --- include/efi_api.h | 25 +++++++++++++++++++++++++ include/efi_loader.h | 4 ++++ include/efi_riscv.h | 24 ++++++++++++++++++++++++ 3 files changed, 53 insertions(+) create mode 100644 include/efi_riscv.h (limited to 'include') diff --git a/include/efi_api.h b/include/efi_api.h index c8f959bb72..4b9b8112e1 100644 --- a/include/efi_api.h +++ b/include/efi_api.h @@ -417,6 +417,31 @@ struct efi_runtime_services { EFI_GUID(0x1e2ed096, 0x30e2, 0x4254, 0xbd, \ 0x89, 0x86, 0x3b, 0xbe, 0xf8, 0x23, 0x25) +#define EFI_RNG_PROTOCOL_GUID \ + EFI_GUID(0x3152bca5, 0xeade, 0x433d, 0x86, 0x2e, \ + 0xc0, 0x1c, 0xdc, 0x29, 0x1f, 0x44) + +#define EFI_DT_FIXUP_PROTOCOL_GUID \ + EFI_GUID(0xe617d64c, 0xfe08, 0x46da, 0xf4, 0xdc, \ + 0xbb, 0xd5, 0x87, 0x0c, 0x73, 0x00) + +#define EFI_TCG2_PROTOCOL_GUID \ + EFI_GUID(0x607f766c, 0x7455, 0x42be, 0x93, \ + 0x0b, 0xe4, 0xd7, 0x6d, 0xb2, 0x72, 0x0f) + +#define RISCV_EFI_BOOT_PROTOCOL_GUID \ + EFI_GUID(0xccd15fec, 0x6f73, 0x4eec, 0x83, \ + 0x95, 0x3e, 0x69, 0xe4, 0xb9, 0x40, 0xbf) + +/** + * struct efi_configuration_table - EFI Configuration Table + * + * This table contains a set of GUID/pointer pairs. + * The EFI Configuration Table may contain at most one instance of each table type. + * + * @guid: GUID that uniquely identifies the system configuration table + * @table: A pointer to the table associated with guid + */ struct efi_configuration_table { efi_guid_t guid; void *table; diff --git a/include/efi_loader.h b/include/efi_loader.h index c440962fe5..432a57e7ea 100644 --- a/include/efi_loader.h +++ b/include/efi_loader.h @@ -523,6 +523,10 @@ efi_status_t efi_disk_register(void); efi_status_t efi_rng_register(void); /* Called by efi_init_obj_list() to install EFI_TCG2_PROTOCOL */ efi_status_t efi_tcg2_register(void); +/* Called by efi_init_obj_list() to install RISCV_EFI_BOOT_PROTOCOL */ +efi_status_t efi_riscv_register(void); +/* Called by efi_init_obj_list() to do initial measurement */ +efi_status_t efi_tcg2_do_initial_measurement(void); /* measure the pe-coff image, extend PCR and add Event Log */ efi_status_t tcg2_measure_pe_image(void *efi, u64 efi_size, struct efi_loaded_image_obj *handle, diff --git a/include/efi_riscv.h b/include/efi_riscv.h new file mode 100644 index 0000000000..4bd39c4366 --- /dev/null +++ b/include/efi_riscv.h @@ -0,0 +1,24 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * RISCV_EFI_BOOT_PROTOCOL + * + * Copyright (c) 2022 Ventana Micro Systems Inc + */ + +#include + +#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; -- cgit v1.2.3