linux/arch/arm64
Ard Biesheuvel 020d044f66 arm64: mm: treat memstart_addr as a signed quantity
Commit c031a4213c ("arm64: kaslr: randomize the linear region")
implements randomization of the linear region, by subtracting a random
multiple of PUD_SIZE from memstart_addr. This causes the virtual mapping
of system RAM to move upwards in the linear region, and at the same time
causes memstart_addr to assume a value which may be negative if the offset
of system RAM in the physical space is smaller than its offset relative to
PAGE_OFFSET in the virtual space.

Since memstart_addr is effectively an offset now, redefine its type as s64
so that expressions involving shifting or division preserve its sign.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2016-02-29 18:31:03 +00:00
..
boot ARM: SoC fixes for v4.5-rc 2016-02-07 15:23:20 -08:00
configs arm64: defconfig: updates for 4.5 2016-01-26 11:24:41 +00:00
crypto arm64: crypto: reduce priority of core AES cipher 2015-11-18 12:09:08 +00:00
include arm64: mm: treat memstart_addr as a signed quantity 2016-02-29 18:31:03 +00:00
kernel arm64: kernel: acpi: fix ioremap in ACPI parking protocol cpu_postboot 2016-02-26 15:39:52 +00:00
kvm arm64: Rename cpuid_feature field extract routines 2016-02-25 10:33:08 +00:00
lib arm64: lse: deal with clobbered IP registers after branch via PLT 2016-02-26 18:35:02 +00:00
mm arm64: mm: treat memstart_addr as a signed quantity 2016-02-29 18:31:03 +00:00
net arm64: bpf: add extra pass to handle faulty codegen 2016-01-17 19:15:26 -05:00
xen xen/arm: introduce HYPERVISOR_platform_op on arm and arm64 2015-12-21 14:40:56 +00:00
Kconfig arm64: kconfig: add submenu for 8.2 architectural features 2016-02-26 18:12:35 +00:00
Kconfig.debug arch: consolidate CONFIG_STRICT_DEVM in lib/Kconfig.debug 2016-01-09 06:30:49 -08:00
Kconfig.platforms ARM: SoC support for Tegra platforms for v4.5 2016-01-22 17:30:52 -08:00
Makefile arm64: add support for building vmlinux as a relocatable PIE binary 2016-02-24 14:57:27 +00:00