x86: guard more stack pages
authorJan Beulich <jbeulich@suse.com>
Fri, 2 Mar 2018 14:19:28 +0000 (15:19 +0100)
committerJan Beulich <jbeulich@suse.com>
Fri, 2 Mar 2018 14:19:28 +0000 (15:19 +0100)
commit1772d89c08edce9c9ec0779bcb57d05410aa8851
tree10cc6fd29b93e1c839c7137011c22f31dbd53d74
parent2d9078954279e943d976ca2154c16b986dd25799
x86: guard more stack pages

There's no reason to keep the unused pages (of which there are actually
two; respective commentary also gets adjusted) mapped.

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Reviewed-by: Andrew Cooper <andrew.cooper3@citrix.com>
xen/arch/x86/mm.c
xen/arch/x86/x86_64/traps.c
xen/include/asm-x86/current.h