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Date:   Sat, 22 Aug 2020 13:38:57 -0000
From:   "tip-bot2 for Ard Biesheuvel" <>
Cc:     Jonathan Corbet <>,,
        Ard Biesheuvel <>, x86 <>,
        LKML <>
Subject: [tip: efi/urgent] Documentation: efi: remove description of efi=old_map

The following commit has been merged into the efi/urgent branch of tip:

Commit-ID:     fb1201aececc59990b75ef59fca93ae4aa1e1444
Author:        Ard Biesheuvel <>
AuthorDate:    Mon, 17 Aug 2020 12:00:17 +02:00
Committer:     Ard Biesheuvel <>
CommitterDate: Thu, 20 Aug 2020 11:18:36 +02:00

Documentation: efi: remove description of efi=old_map

The old EFI runtime region mapping logic that was kept around for some
time has finally been removed entirely, along with the SGI UV1 support
code that was its last remaining user. So remove any mention of the
efi=old_map command line parameter from the docs.

Cc: Jonathan Corbet <>
Signed-off-by: Ard Biesheuvel <>
 Documentation/admin-guide/kernel-parameters.txt | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index bdc1f33..a106874 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -1233,8 +1233,7 @@
 	efi=		[EFI]
 			Format: { "debug", "disable_early_pci_dma",
 				  "nochunk", "noruntime", "nosoftreserve",
-				  "novamap", "no_disable_early_pci_dma",
-				  "old_map" }
+				  "novamap", "no_disable_early_pci_dma" }
 			debug: enable misc debug output.
 			disable_early_pci_dma: disable the busmaster bit on all
 			PCI bridges while in the EFI boot stub.
@@ -1251,8 +1250,6 @@
 			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

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