[PATCH RFC 5/5] Docs: document notemppt option
From: Baskov Evgeniy <hidden>
Date: 2021-11-10 10:56:53
Also in:
linux-efi, lkml
Subsystem:
documentation, the rest · Maintainers:
Jonathan Corbet, Linus Torvalds
This option allows to disable building temporary page tables when booting via efistub with CONFIG_EFI_STRICT_PGTABLE enabled. Signed-off-by: Baskov Evgeniy <redacted> --- Documentation/admin-guide/kernel-parameters.txt | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 43dc35fe5bc0..0c4ed43cd13c 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt@@ -1294,7 +1294,8 @@ efi= [EFI] Format: { "debug", "disable_early_pci_dma", "nochunk", "noruntime", "nosoftreserve", - "novamap", "no_disable_early_pci_dma" } + "novamap", "no_disable_early_pci_dma", + "notemppt" } debug: enable misc debug output. disable_early_pci_dma: disable the busmaster bit on all PCI bridges while in the EFI boot stub.
@@ -1311,6 +1312,10 @@ 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 + notemppt: disable temporary page table creation in EFISTUB + for CONFIG_EFI_STRICT_PGTABLE on x86_64. Can very slightly + increase boot speed. Page copying is not required by most + EFI implementations. efi_no_storage_paranoia [EFI; X86] Using this parameter you can use more than 50% of
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