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| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2019-11-26 12:31:02 +0300 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2019-11-26 12:31:02 +0300 |
| commit | 782b59711e1561ee0da06bc478ca5e8249aa8d09 (patch) | |
| tree | a03ba1d7b9212480e707045619ae493d3be7a084 /Documentation | |
| parent | 995e2ef08280dab8de6c517acd836613678fe2a3 (diff) | |
| parent | 0f1839d0888700389e3062b4787046d61780d6d9 (diff) | |
| download | linux-782b59711e1561ee0da06bc478ca5e8249aa8d09.tar.xz | |
Merge branch 'acpi-mm'
* acpi-mm:
ACPI: HMAT: use %u instead of %d to print u32 values
ACPI: NUMA: HMAT: fix a section mismatch
ACPI: HMAT: don't mix pxm and nid when setting memory target processor_pxm
ACPI: NUMA: HMAT: Register "soft reserved" memory as an "hmem" device
ACPI: NUMA: HMAT: Register HMAT at device_initcall level
device-dax: Add a driver for "hmem" devices
dax: Fix alloc_dax_region() compile warning
lib: Uplevel the pmem "region" ida to a global allocator
x86/efi: Add efi_fake_mem support for EFI_MEMORY_SP
arm/efi: EFI soft reservation to memblock
x86/efi: EFI soft reservation to E820 enumeration
efi: Common enable/disable infrastructure for EFI soft reservation
x86/efi: Push EFI_MEMMAP check into leaf routines
efi: Enumerate EFI_MEMORY_SP
ACPI: NUMA: Establish a new drivers/acpi/numa/ directory
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/admin-guide/kernel-parameters.txt | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index a84a83f8881e..5eee3ea05ac5 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -1168,7 +1168,8 @@ Format: {"off" | "on" | "skip[mbr]"} efi= [EFI] - Format: { "old_map", "nochunk", "noruntime", "debug" } + Format: { "old_map", "nochunk", "noruntime", "debug", + "nosoftreserve" } old_map [X86-64]: switch to the old ioremap-based EFI runtime services mapping. 32-bit still uses this one by default. @@ -1177,6 +1178,12 @@ firmware implementations. noruntime : disable EFI runtime services support debug: enable misc debug output + nosoftreserve: The EFI_MEMORY_SP (Specific Purpose) + attribute may cause the kernel to reserve the + memory range for a memory mapping driver to + claim. Specify efi=nosoftreserve to disable this + reservation and treat the memory by its base type + (i.e. EFI_CONVENTIONAL_MEMORY / "System RAM"). efi_no_storage_paranoia [EFI; X86] Using this parameter you can use more than 50% of @@ -1189,15 +1196,21 @@ updating original EFI memory map. Region of memory which aa attribute is added to is from ss to ss+nn. + If efi_fake_mem=2G@4G:0x10000,2G@0x10a0000000:0x10000 is specified, EFI_MEMORY_MORE_RELIABLE(0x10000) attribute is added to range 0x100000000-0x180000000 and 0x10a0000000-0x1120000000. + If efi_fake_mem=8G@9G:0x40000 is specified, the + EFI_MEMORY_SP(0x40000) attribute is added to + range 0x240000000-0x43fffffff. + Using this parameter you can do debugging of EFI memmap - related feature. For example, you can do debugging of + related features. For example, you can do debugging of Address Range Mirroring feature even if your box - doesn't support it. + doesn't support it, or mark specific memory as + "soft reserved". efivar_ssdt= [EFI; X86] Name of an EFI variable that contains an SSDT that is to be dynamically loaded by Linux. If there are |