• Thomas Garnier's avatar
    x86/mm/KASLR: Fix physical memory calculation on KASLR memory randomization · c7d2361f
    Thomas Garnier authored
    Initialize KASLR memory randomization after max_pfn is initialized. Also
    ensure the size is rounded up. It could create problems on machines
    with more than 1Tb of memory on certain random addresses.
    Signed-off-by: default avatarThomas Garnier <thgarnie@google.com>
    Cc: Aleksey Makarov <aleksey.makarov@linaro.org>
    Cc: Andrew Morton <akpm@linux-foundation.org>
    Cc: Andy Lutomirski <luto@kernel.org>
    Cc: Baoquan He <bhe@redhat.com>
    Cc: Borislav Petkov <bp@alien8.de>
    Cc: Borislav Petkov <bp@suse.de>
    Cc: Brian Gerst <brgerst@gmail.com>
    Cc: Christian Borntraeger <borntraeger@de.ibm.com>
    Cc: Dan Williams <dan.j.williams@intel.com>
    Cc: Dave Hansen <dave.hansen@linux.intel.com>
    Cc: Dave Young <dyoung@redhat.com>
    Cc: Denys Vlasenko <dvlasenk@redhat.com>
    Cc: Fabian Frederick <fabf@skynet.be>
    Cc: H. Peter Anvin <hpa@zytor.com>
    Cc: Joerg Roedel <jroedel@suse.de>
    Cc: Josh Poimboeuf <jpoimboe@redhat.com>
    Cc: Kees Cook <keescook@chromium.org>
    Cc: Linus Torvalds <torvalds@linux-foundation.org>
    Cc: Lv Zheng <lv.zheng@intel.com>
    Cc: Mark Salter <msalter@redhat.com>
    Cc: Peter Zijlstra <peterz@infradead.org>
    Cc: Rafael J . Wysocki <rafael.j.wysocki@intel.com>
    Cc: Thomas Gleixner <tglx@linutronix.de>
    Cc: Toshi Kani <toshi.kani@hp.com>
    Cc: kernel-hardening@lists.openwall.com
    Fixes: 021182e5 ("Enable KASLR for physical mapping memory regions")
    Link: http://lkml.kernel.org/r/1470762665-88032-1-git-send-email-thgarnie@google.comSigned-off-by: default avatarIngo Molnar <mingo@kernel.org>
    c7d2361f
setup.c 31.5 KB