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doc: add novamap to efi kernel command line parameters

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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>
This commit is contained in:
Heinrich Schuchardt
2020-06-16 12:40:12 +02:00
committed by Jonathan Corbet
parent 7ca8e63c8e
commit c03f739fd0
1 changed files with 10 additions and 8 deletions
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18
Documentation/admin-guide/kernel-parameters.txt
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@@ -1207,26 +1207,28 @@
Format: {"off" | "on" | "skip[mbr]"} Format: {"off" | "on" | "skip[mbr]"}
efi= [EFI] efi= [EFI]
Format: { "old_map", "nochunk", "noruntime", "debug", Format: { "debug", "disable_early_pci_dma",
"nosoftreserve", "disable_early_pci_dma", "nochunk", "noruntime", "nosoftreserve",
"no_disable_early_pci_dma" } "novamap", "no_disable_early_pci_dma",
old_map [X86-64]: switch to the old ioremap-based EFI "old_map" }
runtime services mapping. [Needs CONFIG_X86_UV=y] 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 nochunk: disable reading files in "chunks" in the EFI
boot stub, as chunking can cause problems with some boot stub, as chunking can cause problems with some
firmware implementations. firmware implementations.
noruntime : disable EFI runtime services support noruntime : disable EFI runtime services support
debug: enable misc debug output
nosoftreserve: The EFI_MEMORY_SP (Specific Purpose) nosoftreserve: The EFI_MEMORY_SP (Specific Purpose)
attribute may cause the kernel to reserve the attribute may cause the kernel to reserve the
memory range for a memory mapping driver to memory range for a memory mapping driver to
claim. Specify efi=nosoftreserve to disable this claim. Specify efi=nosoftreserve to disable this
reservation and treat the memory by its base type reservation and treat the memory by its base type
(i.e. EFI_CONVENTIONAL_MEMORY / "System RAM"). (i.e. EFI_CONVENTIONAL_MEMORY / "System RAM").
disable_early_pci_dma: Disable the busmaster bit on all novamap: do not call SetVirtualAddressMap().
PCI bridges while in the EFI boot stub
no_disable_early_pci_dma: Leave the busmaster bit set no_disable_early_pci_dma: Leave the busmaster bit set
on all PCI bridges while in the EFI boot stub 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] efi_no_storage_paranoia [EFI; X86]
Using this parameter you can use more than 50% of Using this parameter you can use more than 50% of