diff options
Diffstat (limited to 'include/linux/psp.h')
| -rw-r--r-- | include/linux/psp.h | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/include/linux/psp.h b/include/linux/psp.h new file mode 100644 index 000000000000..92e60aeef21e --- /dev/null +++ b/include/linux/psp.h @@ -0,0 +1,29 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#ifndef __PSP_H +#define __PSP_H + +#ifdef CONFIG_X86 +#include <linux/mem_encrypt.h> + +#define __psp_pa(x) __sme_pa(x) +#else +#define __psp_pa(x) __pa(x) +#endif + +/* + * Fields and bits used by most PSP mailboxes + * + * Note: Some mailboxes (such as SEV) have extra bits or different meanings + * and should include an appropriate local definition in their source file. + */ +#define PSP_CMDRESP_STS GENMASK(15, 0) +#define PSP_CMDRESP_CMD GENMASK(23, 16) +#define PSP_CMDRESP_RESERVED GENMASK(29, 24) +#define PSP_CMDRESP_RECOVERY BIT(30) +#define PSP_CMDRESP_RESP BIT(31) + +#define PSP_DRBL_MSG PSP_CMDRESP_CMD +#define PSP_DRBL_RING BIT(0) + +#endif /* __PSP_H */ |