[linux] 02/02: [arm64] restrict virtual address size to 48 bit

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zumbi pushed a commit to branch master
in repository linux.

commit 259c7457747fc27f974f96bc405dce17a28121ff
Author: Héctor Orón Martínez <zumbi at debian.org>
Date:   Mon Sep 12 13:19:33 2016 +0200

    [arm64] restrict virtual address size to 48 bit
    
    For ACPI boot on ARM64, initramfs must be contained in the first
    32 GB of the virtual address space.
    
    Initramfs relocation code seems to place it out of bounds, restricting
    size of the virtual address space seems to workaround the issue.
    
    (Closes: #834505)
    
    Signed-off-by: Héctor Orón Martínez <zumbi at debian.org>
---
 debian/config/arm64/config | 1 +
 1 file changed, 1 insertion(+)

diff --git a/debian/config/arm64/config b/debian/config/arm64/config
index 4e26c0a..dd151e3 100644
--- a/debian/config/arm64/config
+++ b/debian/config/arm64/config
@@ -3,6 +3,7 @@
 ##
 CONFIG_PCI=y
 CONFIG_ARM64_ERRATUM_834220=y
+CONFIG_ARM64_VA_BITS_48=y
 #. Until we decide how/whether to handle this in userland as well
 # CONFIG_ARM64_ERRATUM_843419 is not set
 CONFIG_SCHED_MC=y

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