dcavalca / rpms / grub2

Forked from rpms/grub2 3 years ago
Clone

Blame SOURCES/0194-lsefimmap-support-persistent-memory-and-other-UEFI-2.patch

23d2ea
From b09105154fff8679d6ec5790d6486619a62331ea Mon Sep 17 00:00:00 2001
23d2ea
From: Robert Elliott <elliott@hpe.com>
23d2ea
Date: Thu, 17 Dec 2015 10:53:32 -0600
23d2ea
Subject: [PATCH 194/198] lsefimmap: support persistent memory and other UEFI
23d2ea
 2.5 features
23d2ea
23d2ea
This should accompany
23d2ea
	76ce1de740 Translate UEFI persistent memory type
23d2ea
23d2ea
1. Add a string for the EfiPersistentMemory type 14 that was
23d2ea
added in UEFI 2.5.
23d2ea
23d2ea
2. Decode the memory attributes that were added in UEFI 2.5:
23d2ea
* NV (non-volatile)
23d2ea
* MORE_RELIABLE (higher reliable, e.g., mirrored memory in a system
23d2ea
  with partial memory mirroring)
23d2ea
* RO (read-only)
23d2ea
23d2ea
3. Use proper IEC binary units (KiB, MiB, etc.) for power-of-two
23d2ea
values rather than misusing SI power-of-ten units (KB, MB, etc.)
23d2ea
23d2ea
4. The lsmmap command only decodes memory ranges sizes up to GiB scale
23d2ea
units.  Persistent memory ranges will reach into the TiB scale.
23d2ea
Since 64-bit size field supports TiB, PiB, and EiB, decode all of
23d2ea
them for completeness.
23d2ea
23d2ea
5. In the lsefimmap command, rewrite the print statements to
23d2ea
* avoid rounding
23d2ea
* avoid a big nested if/else tree.
23d2ea
23d2ea
For example: In the sixth entry below, the value of 309MB implies
23d2ea
316416KB but is really reporting 316436KB.
23d2ea
23d2ea
Widen the size column to 6 digits to accommodate typical cases.
23d2ea
The worst case value would require 14 digits; if that happens,
23d2ea
let the columns get out of sync.
23d2ea
23d2ea
Old format:
23d2ea
Type      Physical start  - end             #Pages     Size Attributes
23d2ea
conv-mem  0000000000000000-0000000000092fff 00000093  588KB UC WC WT WB
23d2ea
reserved  0000000000093000-0000000000093fff 00000001    4KB UC WC WT WB
23d2ea
conv-mem  0000000000094000-000000000009ffff 0000000c   48KB UC WC WT WB
23d2ea
conv-mem  0000000000100000-000000000fffffff 0000ff00  255MB UC WC WT WB
23d2ea
BS-code   0000000010000000-0000000010048fff 00000049  292KB UC WC WT WB
23d2ea
conv-mem  0000000010049000-000000002354dfff 00013505  309MB UC WC WT WB
23d2ea
ldr-data  000000002354e000-000000003ecfffff 0001b7b2  439MB UC WC WT WB
23d2ea
BS-data   000000003ed00000-000000003ed7ffff 00000080  512KB UC WC WT WB
23d2ea
conv-mem  000000003ed80000-000000006af5ffff 0002c1e0  705MB UC WC WT WB
23d2ea
reserved  000000006af60000-000000006b55ffff 00000600    6MB UC WC WT WB
23d2ea
BS-data   000000006b560000-000000006b560fff 00000001    4KB UC WC WT WB
23d2ea
RT-data   000000006b561000-000000006b5e1fff 00000081  516KB RT UC WC WT WB
23d2ea
BS-data   000000006b5e2000-000000006ecfafff 00003719   55MB UC WC WT WB
23d2ea
BS-code   000000006ecfb000-000000006ecfbfff 00000001    4KB UC WC WT WB
23d2ea
conv-mem  000000006ecfc000-00000000711fafff 000024ff   36MB UC WC WT WB
23d2ea
BS-data   00000000711fb000-000000007128dfff 00000093  588KB UC WC WT WB
23d2ea
Unk 0d    0000000880000000-0000000e7fffffff 00600000   24GB UC WC WT WB NV
23d2ea
reserved  0000001680000000-0000001c7fffffff 00600000   24GB UC WC WT WB NV
23d2ea
23d2ea
New format:
23d2ea
Type      Physical start  - end             #Pages        Size Attributes
23d2ea
conv-mem  0000000000000000-0000000000092fff 00000093    588KiB UC WC WT WB
23d2ea
reserved  0000000000093000-0000000000093fff 00000001      4KiB UC WC WT WB
23d2ea
conv-mem  0000000000094000-000000000009ffff 0000000c     48KiB UC WC WT WB
23d2ea
conv-mem  0000000000100000-000000000fffffff 0000ff00    255MiB UC WC WT WB
23d2ea
BS-code   0000000010000000-0000000010048fff 00000049    292KiB UC WC WT WB
23d2ea
conv-mem  0000000010049000-000000002354dfff 00013505 316436KiB UC WC WT WB
23d2ea
ldr-data  000000002354e000-000000003ecfffff 0001b7b2 450248KiB UC WC WT WB
23d2ea
BS-data   000000003ed00000-000000003ed7ffff 00000080    512KiB UC WC WT WB
23d2ea
conv-mem  000000003ed80000-000000006af5ffff 0002c1e0 722816KiB UC WC WT WB
23d2ea
reserved  000000006af60000-000000006b55ffff 00000600      6MiB UC WC WT WB
23d2ea
BS-data   000000006b560000-000000006b560fff 00000001      4KiB UC WC WT WB
23d2ea
RT-data   000000006b561000-000000006b5e1fff 00000081    516KiB RT UC WC WT WB
23d2ea
BS-data   000000006b5e2000-000000006ecfafff 00003719  56420KiB UC WC WT WB
23d2ea
BS-code   000000006ecfb000-000000006ecfbfff 00000001      4KiB UC WC WT WB
23d2ea
conv-mem  000000006ecfc000-0000000071222fff 00002527  38044KiB UC WC WT WB
23d2ea
BS-data   0000000071223000-00000000712ddfff 000000bb    748KiB UC WC WT WB
23d2ea
persist   0000000880000000-0000000e7fffffff 00600000     24GiB UC WC WT WB NV
23d2ea
reserved  0000001680000000-0000001c7fffffff 00600000     24GiB UC WC WT WB NV
23d2ea
23d2ea
(cherry picked from commit c79c59f1295df8ea660f8a858f9532d76a5f67b7)
23d2ea
23d2ea
Resolves: rhbz#1288608
23d2ea
---
23d2ea
 grub-core/commands/efi/lsefimmap.c | 47 +++++++++++++++++++++++++-------------
23d2ea
 include/grub/efi/api.h             |  3 +++
23d2ea
 2 files changed, 34 insertions(+), 16 deletions(-)
23d2ea
23d2ea
diff --git a/grub-core/commands/efi/lsefimmap.c b/grub-core/commands/efi/lsefimmap.c
23d2ea
index 215b45b..c85ff7f 100644
23d2ea
--- a/grub-core/commands/efi/lsefimmap.c
23d2ea
+++ b/grub-core/commands/efi/lsefimmap.c
23d2ea
@@ -51,7 +51,7 @@ grub_cmd_lsefimmap (grub_command_t cmd __attribute__ ((unused)),
23d2ea
 
23d2ea
   grub_printf
23d2ea
     ("Type      Physical start  - end             #Pages   "
23d2ea
-     "  Size Attributes\n");
23d2ea
+     "     Size Attributes\n");
23d2ea
   memory_map_end = ADD_MEMORY_DESCRIPTOR (memory_map, map_size);
23d2ea
   for (desc = memory_map;
23d2ea
        desc < memory_map_end;
23d2ea
@@ -74,7 +74,8 @@ grub_cmd_lsefimmap (grub_command_t cmd __attribute__ ((unused)),
23d2ea
 	  "ACPI-nvs",
23d2ea
 	  "MMIO    ",
23d2ea
 	  "IO-ports",
23d2ea
-	  "PAL-code"
23d2ea
+	  "PAL-code",
23d2ea
+	  "persist ",
23d2ea
 	};
23d2ea
       if (desc->type < ARRAY_SIZE (types_str))
23d2ea
 	grub_printf ("%s ", types_str[desc->type]);
23d2ea
@@ -87,21 +88,29 @@ grub_cmd_lsefimmap (grub_command_t cmd __attribute__ ((unused)),
23d2ea
 		   desc->physical_start + (desc->num_pages << 12) - 1,
23d2ea
 		   desc->num_pages);
23d2ea
 
23d2ea
-      size = desc->num_pages;
23d2ea
-      size <<= (12 - 10);
23d2ea
-      if (size < 1024)
23d2ea
-	grub_printf (" %4" PRIuGRUB_UINT64_T "KB", size);
23d2ea
+      size = desc->num_pages << 12;	/* 4 KiB page size */
23d2ea
+      /*
23d2ea
+       * Since size is a multiple of 4 KiB, no need to handle units
23d2ea
+       * of just Bytes (which would use a mask of 0x3ff).
23d2ea
+       *
23d2ea
+       * 14 characters would support the largest possible number of 4 KiB
23d2ea
+       * pages that are not a multiple of larger units (e.g., MiB):
23d2ea
+       * 17592186044415 (0xffffff_fffff000), but that uses a lot of
23d2ea
+       * whitespace for a rare case.  6 characters usually suffices;
23d2ea
+       * columns will be off if not, but this is preferable to rounding.
23d2ea
+       */
23d2ea
+      if (size & 0xfffff)
23d2ea
+	grub_printf (" %6" PRIuGRUB_UINT64_T "KiB", size >> 10);
23d2ea
+      else if (size & 0x3fffffff)
23d2ea
+	grub_printf (" %6" PRIuGRUB_UINT64_T "MiB", size >> 20);
23d2ea
+      else if (size & 0xffffffffff)
23d2ea
+	grub_printf (" %6" PRIuGRUB_UINT64_T "GiB", size >> 30);
23d2ea
+      else if (size & 0x3ffffffffffff)
23d2ea
+	grub_printf (" %6" PRIuGRUB_UINT64_T "TiB", size >> 40);
23d2ea
+      else if (size & 0xfffffffffffffff)
23d2ea
+	grub_printf (" %6" PRIuGRUB_UINT64_T "PiB", size >> 50);
23d2ea
       else
23d2ea
-	{
23d2ea
-	  size /= 1024;
23d2ea
-	  if (size < 1024)
23d2ea
-	    grub_printf (" %4" PRIuGRUB_UINT64_T "MB", size);
23d2ea
-	  else
23d2ea
-	    {
23d2ea
-	      size /= 1024;
23d2ea
-	      grub_printf (" %4" PRIuGRUB_UINT64_T "GB", size);
23d2ea
-	    }
23d2ea
-	}
23d2ea
+	grub_printf (" %6" PRIuGRUB_UINT64_T "EiB", size >> 60);
23d2ea
 
23d2ea
       attr = desc->attribute;
23d2ea
       if (attr & GRUB_EFI_MEMORY_RUNTIME)
23d2ea
@@ -122,6 +131,12 @@ grub_cmd_lsefimmap (grub_command_t cmd __attribute__ ((unused)),
23d2ea
 	grub_printf (" RP");
23d2ea
       if (attr & GRUB_EFI_MEMORY_XP)
23d2ea
 	grub_printf (" XP");
23d2ea
+      if (attr & GRUB_EFI_MEMORY_NV)
23d2ea
+	grub_printf (" NV");
23d2ea
+      if (attr & GRUB_EFI_MEMORY_MORE_RELIABLE)
23d2ea
+	grub_printf (" MR");
23d2ea
+      if (attr & GRUB_EFI_MEMORY_RO)
23d2ea
+	grub_printf (" RO");
23d2ea
 
23d2ea
       grub_printf ("\n");
23d2ea
     }
23d2ea
diff --git a/include/grub/efi/api.h b/include/grub/efi/api.h
23d2ea
index e481c26..79b4869 100644
23d2ea
--- a/include/grub/efi/api.h
23d2ea
+++ b/include/grub/efi/api.h
23d2ea
@@ -49,6 +49,9 @@
23d2ea
 #define GRUB_EFI_MEMORY_WP	0x0000000000001000LL
23d2ea
 #define GRUB_EFI_MEMORY_RP	0x0000000000002000LL
23d2ea
 #define GRUB_EFI_MEMORY_XP	0x0000000000004000LL
23d2ea
+#define GRUB_EFI_MEMORY_NV	0x0000000000008000LL
23d2ea
+#define GRUB_EFI_MEMORY_MORE_RELIABLE	0x0000000000010000LL
23d2ea
+#define GRUB_EFI_MEMORY_RO	0x0000000000020000LL
23d2ea
 #define GRUB_EFI_MEMORY_RUNTIME	0x8000000000000000LL
23d2ea
 
23d2ea
 #define GRUB_EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL	0x00000001
23d2ea
-- 
23d2ea
2.7.4
23d2ea