diff options
Diffstat (limited to 'Documentation/x86')
| -rw-r--r-- | Documentation/x86/boot.txt | 3 | ||||
| -rw-r--r-- | Documentation/x86/x86_64/boot-options.txt | 23 | ||||
| -rw-r--r-- | Documentation/x86/x86_64/mm.txt | 7 |
3 files changed, 10 insertions, 23 deletions
diff --git a/Documentation/x86/boot.txt b/Documentation/x86/boot.txt index f4f268c2b82..cb81741d3b0 100644 --- a/Documentation/x86/boot.txt +++ b/Documentation/x86/boot.txt @@ -608,6 +608,9 @@ Protocol: 2.12+ - If 1, the kernel supports the 64-bit EFI handoff entry point given at handover_offset + 0x200. + Bit 4 (read): XLF_EFI_KEXEC + - If 1, the kernel supports kexec EFI boot with EFI runtime support. + Field name: cmdline_size Type: read Offset/size: 0x238/4 diff --git a/Documentation/x86/x86_64/boot-options.txt b/Documentation/x86/x86_64/boot-options.txt index 1228b22e142..5223479291a 100644 --- a/Documentation/x86/x86_64/boot-options.txt +++ b/Documentation/x86/x86_64/boot-options.txt @@ -78,14 +78,6 @@ APICs no_timer_check Don't check the IO-APIC timer. This can work around problems with incorrect timer initialization on some boards. - - apicmaintimer Run time keeping from the local APIC timer instead - of using the PIT/HPET interrupt for this. This is useful - when the PIT/HPET interrupts are unreliable. - - noapicmaintimer Don't do time keeping using the APIC timer. - Useful when this option was auto selected, but doesn't work. - apicpmtimer Do APIC timer calibration using the pmtimer. Implies apicmaintimer. Useful when your PIT timer is totally @@ -144,11 +136,6 @@ Non Executable Mappings on Enable(default) off Disable -SMP - - additional_cpus=NUM Allow NUM more CPUs for hotplug - (defaults are specified by the BIOS, see Documentation/x86/x86_64/cpu-hotplug-spec) - NUMA numa=off Only set up a single NUMA node spanning all memory. @@ -289,16 +276,6 @@ Debugging kstack=N Print N words from the kernel stack in oops dumps. - pagefaulttrace Dump all page faults. Only useful for extreme debugging - and will create a lot of output. - - call_trace=[old|both|newfallback|new] - old: use old inexact backtracer - new: use new exact dwarf2 unwinder - both: print entries from both - newfallback: use new unwinder but fall back to old if it gets - stuck (default) - Miscellaneous nogbpages diff --git a/Documentation/x86/x86_64/mm.txt b/Documentation/x86/x86_64/mm.txt index 881582f75c9..c584a51add1 100644 --- a/Documentation/x86/x86_64/mm.txt +++ b/Documentation/x86/x86_64/mm.txt @@ -28,4 +28,11 @@ reference. Current X86-64 implementations only support 40 bits of address space, but we support up to 46 bits. This expands into MBZ space in the page tables. +->trampoline_pgd: + +We map EFI runtime services in the aforementioned PGD in the virtual +range of 64Gb (arbitrarily set, can be raised if needed) + +0xffffffef00000000 - 0xffffffff00000000 + -Andi Kleen, Jul 2004 |