1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3 * PowerPC ELF notes.
4 *
5 * Copyright 2019, IBM Corporation
6 */
7
8 #include <linux/elfnote.h>
9 #include <asm/elfnote.h>
10
11 /*
12 * Ultravisor-capable bit (PowerNV only).
13 *
14 * Bit 0 indicates that the powerpc kernel bin
15 * ultravisor-enabled system.
16 *
17 * In an ultravisor-enabled system, some machi
18 * by the ultravisor. If the kernel is not ult
19 * being run on a machine with ultravisor, the
20 * trying to access ultravisor resources. For
21 * boot trying to set the partition table entr
22 *
23 * In an ultravisor-enabled system, a bootload
24 * the kernel from being run if the PowerPC ul
25 * or the Ultravisor-capable bit is not set.
26 */
27 #ifdef CONFIG_PPC_POWERNV
28 #define PPCCAP_ULTRAVISOR_BIT (1 <<
29 #else
30 #define PPCCAP_ULTRAVISOR_BIT 0
31 #endif
32
33 /*
34 * Add the PowerPC Capabilities in the binary
35 * can be used to advertise kernel capabilitie
36 */
37 #define PPC_CAPABILITIES_BITMAP (PPCCAP_ULTRAV
38
39 ELFNOTE(PowerPC, PPC_ELFNOTE_CAPABILITIES,
40 .long PPC_CAPABILITIES_BITMAP)
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