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Groups > linux.kernel > #1323555
| From | Matt Fleming <matt@codeblueprint.co.uk> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH 12/14] efi: Add NV memory attribute |
| Date | 2016-02-01 23:10 +0100 |
| Message-ID | <qXuPx-WW-5@gated-at.bofh.it> (permalink) |
| References | <qXuPx-WW-3@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
From: Robert Elliott <elliott@hpe.com>
Add the NV memory attribute introduced in UEFI 2.5 and add a column
for it in the types and attributes string used when printing the UEFI
memory map.
old:
efi: mem61: [type=14 | | | | | | | |WB|WT|WC|UC] range=[0x0000000880000000-0x0000000c7fffffff) (16384MB)
new:
efi: mem61: [type=14 | | |NV| | | | | |WB|WT|WC|UC] range=[0x0000000880000000-0x0000000c7fffffff) (16384MB)
Signed-off-by: Robert Elliott <elliott@hpe.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Taku Izumi <izumi.taku@jp.fujitsu.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Matt Fleming <matt@codeblueprint.co.uk>
---
drivers/firmware/efi/efi.c | 5 ++++-
include/linux/efi.h | 1 +
2 files changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/firmware/efi/efi.c b/drivers/firmware/efi/efi.c
index 0cd8f039602e..9c8c0747c8cd 100644
--- a/drivers/firmware/efi/efi.c
+++ b/drivers/firmware/efi/efi.c
@@ -580,13 +580,16 @@ char * __init efi_md_typeattr_format(char *buf, size_t size,
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_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|%3s|%2s|%2s|%2s|%2s]",
+ snprintf(pos, size,
+ "|%3s|%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_NV ? "NV" : "",
attr & EFI_MEMORY_XP ? "XP" : "",
attr & EFI_MEMORY_RP ? "RP" : "",
attr & EFI_MEMORY_WP ? "WP" : "",
diff --git a/include/linux/efi.h b/include/linux/efi.h
index f468f7c53236..99b88c5a6770 100644
--- a/include/linux/efi.h
+++ b/include/linux/efi.h
@@ -97,6 +97,7 @@ typedef struct {
#define EFI_MEMORY_WP ((u64)0x0000000000001000ULL) /* write-protect */
#define EFI_MEMORY_RP ((u64)0x0000000000002000ULL) /* read-protect */
#define EFI_MEMORY_XP ((u64)0x0000000000004000ULL) /* execute-protect */
+#define EFI_MEMORY_NV ((u64)0x0000000000008000ULL) /* non-volatile */
#define EFI_MEMORY_MORE_RELIABLE \
((u64)0x0000000000010000ULL) /* higher reliability */
#define EFI_MEMORY_RO ((u64)0x0000000000020000ULL) /* read-only */
--
2.6.2
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[PATCH 12/14] efi: Add NV memory attribute Matt Fleming <matt@codeblueprint.co.uk> - 2016-02-01 23:10 +0100 Re: [PATCH 12/14] efi: Add NV memory attribute Laszlo Ersek <lersek@redhat.com> - 2016-02-02 10:00 +0100 [tip:efi/core] efi: Add NV memory attribute tip-bot for Robert Elliott <tipbot@zytor.com> - 2016-02-03 12:40 +0100
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