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| author | Heinrich Schuchardt <xypron.glpk@gmx.de> | 2020-06-16 12:40:12 +0200 |
|---|---|---|
| committer | Jonathan Corbet <corbet@lwn.net> | 2020-06-19 13:15:35 -0600 |
| commit | c03f739fd023ecfe4615988f4f70b016df4b6d4e (patch) | |
| tree | 05f400eae2f669801a54b64900e89ed6b1aa2708 | |
| parent | 7ca8e63c8ed352e7ed10e9cc4d229823dded6fa2 (diff) | |
| download | linux-c03f739fd023ecfe4615988f4f70b016df4b6d4e.tar.bz2 | |
doc: add novamap to efi kernel command line parameters
Document the efi=novamap kernel command line parameter.
Put the efi parameters into alphabetic order.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Link: https://lore.kernel.org/r/20200616104012.4780-1-xypron.glpk@gmx.de
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
| -rw-r--r-- | Documentation/admin-guide/kernel-parameters.txt | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index fb95fad81c79..b5beb1fe78cf 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -1207,26 +1207,28 @@ Format: {"off" | "on" | "skip[mbr]"} efi= [EFI] - Format: { "old_map", "nochunk", "noruntime", "debug", - "nosoftreserve", "disable_early_pci_dma", - "no_disable_early_pci_dma" } - old_map [X86-64]: switch to the old ioremap-based EFI - runtime services mapping. [Needs CONFIG_X86_UV=y] + Format: { "debug", "disable_early_pci_dma", + "nochunk", "noruntime", "nosoftreserve", + "novamap", "no_disable_early_pci_dma", + "old_map" } + debug: enable misc debug output. + disable_early_pci_dma: disable the busmaster bit on all + PCI bridges while in the EFI boot stub. nochunk: disable reading files in "chunks" in the EFI boot stub, as chunking can cause problems with some 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"). - disable_early_pci_dma: Disable the busmaster bit on all - PCI bridges while in the EFI boot stub + novamap: do not call SetVirtualAddressMap(). no_disable_early_pci_dma: Leave the busmaster bit set on all PCI bridges while in the EFI boot stub + old_map [X86-64]: switch to the old ioremap-based EFI + runtime services mapping. [Needs CONFIG_X86_UV=y] efi_no_storage_paranoia [EFI; X86] Using this parameter you can use more than 50% of |