From: Ard Biesheuvel <ardb@kernel.org>
Date: Thu, 24 Sep 2020 13:52:24 +0200
Subject: efi: Add definition of EFI_MEMORY_CPU_CRYPTO and ability to report it
Patch-mainline: v5.10-rc1
Git-commit: 6277e374b0b07c1a93c829f0a27e38739b3b7a1b
References: jsc#SLE-16407
Incorporate the definition of EFI_MEMORY_CPU_CRYPTO from the UEFI
specification v2.8, and wire it into our memory map dumping routine
as well.
To make a bit of space in the output buffer, which is provided by
the various callers, shorten the descriptive names of the memory
types.
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Acked-by: Lee, Chun-Yi <jlee@suse.com>
---
drivers/firmware/efi/efi.c | 47 ++++++++++++++++++++++-----------------------
include/linux/efi.h | 1
2 files changed, 25 insertions(+), 23 deletions(-)
--- a/drivers/firmware/efi/efi.c
+++ b/drivers/firmware/efi/efi.c
@@ -721,7 +721,7 @@ void __init efi_systab_report_header(con
vendor);
}
-static __initdata char memory_type_name[][20] = {
+static __initdata char memory_type_name[][13] = {
"Reserved",
"Loader Code",
"Loader Data",
@@ -729,14 +729,14 @@ static __initdata char memory_type_name[
"Boot Data",
"Runtime Code",
"Runtime Data",
- "Conventional Memory",
- "Unusable Memory",
- "ACPI Reclaim Memory",
- "ACPI Memory NVS",
- "Memory Mapped I/O",
- "MMIO Port Space",
+ "Conventional",
+ "Unusable",
+ "ACPI Reclaim",
+ "ACPI Mem NVS",
+ "MMIO",
+ "MMIO Port",
"PAL Code",
- "Persistent Memory",
+ "Persistent",
};
char * __init efi_md_typeattr_format(char *buf, size_t size,
@@ -763,26 +763,27 @@ char * __init efi_md_typeattr_format(cha
if (attr & ~(EFI_MEMORY_UC | EFI_MEMORY_WC | EFI_MEMORY_WT |
EFI_MEMORY_WB | EFI_MEMORY_UCE | EFI_MEMORY_RO |
EFI_MEMORY_WP | EFI_MEMORY_RP | EFI_MEMORY_XP |
- EFI_MEMORY_NV | EFI_MEMORY_SP |
+ EFI_MEMORY_NV | EFI_MEMORY_SP | EFI_MEMORY_CPU_CRYPTO |
EFI_MEMORY_RUNTIME | EFI_MEMORY_MORE_RELIABLE))
snprintf(pos, size, "|attr=0x%016llx]",
(unsigned long long)attr);
else
snprintf(pos, size,
- "|%3s|%2s|%2s|%2s|%2s|%2s|%2s|%2s|%3s|%2s|%2s|%2s|%2s]",
- attr & EFI_MEMORY_RUNTIME ? "RUN" : "",
- attr & EFI_MEMORY_MORE_RELIABLE ? "MR" : "",
- attr & EFI_MEMORY_SP ? "SP" : "",
- attr & EFI_MEMORY_NV ? "NV" : "",
- attr & EFI_MEMORY_XP ? "XP" : "",
- attr & EFI_MEMORY_RP ? "RP" : "",
- attr & EFI_MEMORY_WP ? "WP" : "",
- attr & EFI_MEMORY_RO ? "RO" : "",
- attr & EFI_MEMORY_UCE ? "UCE" : "",
- attr & EFI_MEMORY_WB ? "WB" : "",
- attr & EFI_MEMORY_WT ? "WT" : "",
- attr & EFI_MEMORY_WC ? "WC" : "",
- attr & EFI_MEMORY_UC ? "UC" : "");
+ "|%3s|%2s|%2s|%2s|%2s|%2s|%2s|%2s|%2s|%3s|%2s|%2s|%2s|%2s]",
+ attr & EFI_MEMORY_RUNTIME ? "RUN" : "",
+ attr & EFI_MEMORY_MORE_RELIABLE ? "MR" : "",
+ attr & EFI_MEMORY_CPU_CRYPTO ? "CC" : "",
+ attr & EFI_MEMORY_SP ? "SP" : "",
+ attr & EFI_MEMORY_NV ? "NV" : "",
+ attr & EFI_MEMORY_XP ? "XP" : "",
+ attr & EFI_MEMORY_RP ? "RP" : "",
+ attr & EFI_MEMORY_WP ? "WP" : "",
+ attr & EFI_MEMORY_RO ? "RO" : "",
+ attr & EFI_MEMORY_UCE ? "UCE" : "",
+ attr & EFI_MEMORY_WB ? "WB" : "",
+ attr & EFI_MEMORY_WT ? "WT" : "",
+ attr & EFI_MEMORY_WC ? "WC" : "",
+ attr & EFI_MEMORY_UC ? "UC" : "");
return buf;
}
--- a/include/linux/efi.h
+++ b/include/linux/efi.h
@@ -122,6 +122,7 @@ typedef struct {
((u64)0x0000000000010000ULL) /* higher reliability */
#define EFI_MEMORY_RO ((u64)0x0000000000020000ULL) /* read-only */
#define EFI_MEMORY_SP ((u64)0x0000000000040000ULL) /* soft reserved */
+#define EFI_MEMORY_CPU_CRYPTO ((u64)0x0000000000080000ULL) /* supports encryption */
#define EFI_MEMORY_RUNTIME ((u64)0x8000000000000000ULL) /* range requires runtime mapping */
#define EFI_MEMORY_DESCRIPTOR_VERSION 1