aboutsummaryrefslogtreecommitdiffstats
path: root/Documentation/x86_64
diff options
context:
space:
mode:
authorHuang, Ying <ying.huang@intel.com>2008-01-30 07:31:19 -0500
committerIngo Molnar <mingo@elte.hu>2008-01-30 07:31:19 -0500
commit9ad65e4748f55e3159283d7fa9d54fb30c086113 (patch)
treec562b13be18497327cc772d52739cddcf369845d /Documentation/x86_64
parentde18c850af701ac9512b7239e88fa45e4c168771 (diff)
x86: EFI runtime service support: document for EFI runtime services
This patch adds document for EFI x86_64 runtime services support. Signed-off-by: Chandramouli Narayanan <mouli@linux.intel.com> Signed-off-by: Huang Ying <ying.huang@intel.com> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'Documentation/x86_64')
-rw-r--r--Documentation/x86_64/boot-options.txt9
-rw-r--r--Documentation/x86_64/uefi.txt9
2 files changed, 17 insertions, 1 deletions
diff --git a/Documentation/x86_64/boot-options.txt b/Documentation/x86_64/boot-options.txt
index d7a333258682..638bf46ca059 100644
--- a/Documentation/x86_64/boot-options.txt
+++ b/Documentation/x86_64/boot-options.txt
@@ -110,7 +110,7 @@ Idle loop
110 110
111Rebooting 111Rebooting
112 112
113 reboot=b[ios] | t[riple] | k[bd] | a[cpi] [, [w]arm | [c]old] 113 reboot=b[ios] | t[riple] | k[bd] | a[cpi] | e[fi] [, [w]arm | [c]old]
114 bios Use the CPU reboot vector for warm reset 114 bios Use the CPU reboot vector for warm reset
115 warm Don't set the cold reboot flag 115 warm Don't set the cold reboot flag
116 cold Set the cold reboot flag 116 cold Set the cold reboot flag
@@ -119,6 +119,9 @@ Rebooting
119 acpi Use the ACPI RESET_REG in the FADT. If ACPI is not configured or the 119 acpi Use the ACPI RESET_REG in the FADT. If ACPI is not configured or the
120 ACPI reset does not work, the reboot path attempts the reset using 120 ACPI reset does not work, the reboot path attempts the reset using
121 the keyboard controller. 121 the keyboard controller.
122 efi Use efi reset_system runtime service. If EFI is not configured or the
123 EFI reset does not work, the reboot path attempts the reset using
124 the keyboard controller.
122 125
123 Using warm reset will be much faster especially on big memory 126 Using warm reset will be much faster especially on big memory
124 systems because the BIOS will not go through the memory check. 127 systems because the BIOS will not go through the memory check.
@@ -303,4 +306,8 @@ Debugging
303 newfallback: use new unwinder but fall back to old if it gets 306 newfallback: use new unwinder but fall back to old if it gets
304 stuck (default) 307 stuck (default)
305 308
309EFI
310
311 noefi Disable EFI support
312
306Miscellaneous 313Miscellaneous
diff --git a/Documentation/x86_64/uefi.txt b/Documentation/x86_64/uefi.txt
index 91a98edfb588..7d77120a5184 100644
--- a/Documentation/x86_64/uefi.txt
+++ b/Documentation/x86_64/uefi.txt
@@ -19,6 +19,10 @@ Mechanics:
19- Build the kernel with the following configuration. 19- Build the kernel with the following configuration.
20 CONFIG_FB_EFI=y 20 CONFIG_FB_EFI=y
21 CONFIG_FRAMEBUFFER_CONSOLE=y 21 CONFIG_FRAMEBUFFER_CONSOLE=y
22 If EFI runtime services are expected, the following configuration should
23 be selected.
24 CONFIG_EFI=y
25 CONFIG_EFI_VARS=y or m # optional
22- Create a VFAT partition on the disk 26- Create a VFAT partition on the disk
23- Copy the following to the VFAT partition: 27- Copy the following to the VFAT partition:
24 elilo bootloader with x86_64 support, elilo configuration file, 28 elilo bootloader with x86_64 support, elilo configuration file,
@@ -27,3 +31,8 @@ Mechanics:
27 can be found in the elilo sourceforge project. 31 can be found in the elilo sourceforge project.
28- Boot to EFI shell and invoke elilo choosing the kernel image built 32- Boot to EFI shell and invoke elilo choosing the kernel image built
29 in first step. 33 in first step.
34- If some or all EFI runtime services don't work, you can try following
35 kernel command line parameters to turn off some or all EFI runtime
36 services.
37 noefi turn off all EFI runtime services
38 reboot_type=k turn off EFI reboot runtime service