The patch titled
x86_64 EFI runtime service support: document for EFI runtime services
has been added to the -mm tree. Its filename is
x86_64-efi-runtime-service-support-document-for-efi-runtime-services.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: x86_64 EFI runtime service support: document for EFI runtime services
From: "Huang, Ying" <ying.huang@xxxxxxxxx>
Add documentation for EFI x86_64 runtime services support. The boot
parameters added are documented in
Documentation/i386/zero-page.txt. The boot options added are
documented in Documentation/x86_64/boot-options.txt.
Signed-off-by: Chandramouli Narayanan <mouli@xxxxxxxxxxxxxxx>
Signed-off-by: Huang Ying <ying.huang@xxxxxxxxx>
Cc: Andi Kleen <ak@xxxxxxx>
Cc: Aaron Durbin <adurbin@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
Documentation/i386/zero-page.txt | 21 ++++++++++++++++-----
Documentation/x86_64/boot-options.txt | 10 +++++++++-
2 files changed, 25 insertions(+), 6 deletions(-)
diff -puN Documentation/i386/zero-page.txt~x86_64-efi-runtime-service-support-document-for-efi-runtime-services Documentation/i386/zero-page.txt
--- a/Documentation/i386/zero-page.txt~x86_64-efi-runtime-service-support-document-for-efi-runtime-services
+++ a/Documentation/i386/zero-page.txt
@@ -41,11 +41,11 @@ Offset Type Description
0xb0 - 0x13f Free. Add more parameters here if you really need them.
0x140- 0x1be EDID_INFO Video mode setup
-0x1c4 unsigned long EFI system table pointer
-0x1c8 unsigned long EFI memory descriptor size
-0x1cc unsigned long EFI memory descriptor version
-0x1d0 unsigned long EFI memory descriptor map pointer
-0x1d4 unsigned long EFI memory descriptor map size
+0x1c4 unsigned long EFI system table pointer*
+0x1c8 unsigned long EFI memory descriptor size*
+0x1cc unsigned long EFI memory descriptor version*
+0x1d0 unsigned long EFI memory descriptor map pointer*
+0x1d4 unsigned long EFI memory descriptor map size*
0x1e0 unsigned long ALT_MEM_K, alternative mem check, in Kb
0x1e4 unsigned long Scratch field for the kernel setup code
0x1e8 char number of entries in E820MAP (below)
@@ -97,3 +97,14 @@ Offset Type Description
0x2d0 - 0xd00 E820MAP
0xd00 - 0xeff EDDBUF (edd.S) for disk signature read sector
0xd00 - 0xeeb EDDBUF (edd.S) for edd data
+
+Changes for x86_64 implementation:
+---------------------------------
+For alignment purposes, the following parameters are rearranged.
+
+0x1c0 4 bytes EFI Loader signature, ="EFIL"
+0x1c4 unsigned long EFI memory descriptor size
+0x1c8 unsigned long EFI memory descriptor version
+0x1cc unsigned long EFI memory descriptor map size
+0x1d0 8 bytes EFI memory descriptor map pointer
+0x1d8 8 bytes EFI system table pointer
diff -puN Documentation/x86_64/boot-options.txt~x86_64-efi-runtime-service-support-document-for-efi-runtime-services Documentation/x86_64/boot-options.txt
--- a/Documentation/x86_64/boot-options.txt~x86_64-efi-runtime-service-support-document-for-efi-runtime-services
+++ a/Documentation/x86_64/boot-options.txt
@@ -110,12 +110,13 @@ Idle loop
Rebooting
- reboot=b[ios] | t[riple] | k[bd] | a[cpi] [, [w]arm | [c]old]
+ reboot=b[ios] | t[riple] | k[bd] | e[fi] | a[cpi] [, [w]arm | [c]old]
bios Use the CPU reboot vector for warm reset
warm Don't set the cold reboot flag
cold Set the cold reboot flag
triple Force a triple fault (init)
kbd Use the keyboard controller. cold reset (default)
+ efi Use efi reset_system runtime service. cold reset (default)
acpi Use the ACPI RESET_REG in the FADT. If ACPI is not configured or the
ACPI reset does not work, the reboot path attempts the reset using
the keyboard controller.
@@ -303,4 +304,11 @@ Debugging
newfallback: use new unwinder but fall back to old if it gets
stuck (default)
+EFI
+
+ noefi Disable EFI support
+
+ noefi_time Disable EFI time runtime service, programming CMOS
+ hardware directly
+
Miscellaneous
_
Patches currently in -mm which might be from ying.huang@xxxxxxxxx are
x86_64-efi-runtime-service-support-efi-basic-runtime-service-support.patch
x86_64-efi-runtime-service-support-efi-runtime-services.patch
x86_64-efi-runtime-service-support-document-for-efi-runtime-services.patch
x86_64-efi-boot-support-efi-frame-buffer-driver.patch
x86_64-efi-boot-support-efi-boot-document.patch
-
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