linux_dsm_epyc7002/arch/arm64
Ard Biesheuvel 0e63ea48b4 arm64/efi: add missing call to early_ioremap_reset()
The early ioremap support introduced by patch bf4b558eba
("arm64: add early_ioremap support") failed to add a call to
early_ioremap_reset() at an appropriate time. Without this call,
invocations of early_ioremap etc. that are done too late will go
unnoticed and may cause corruption.

This is exactly what happened when the first user of this feature
was added in patch f84d02755f ("arm64: add EFI runtime services").
The early mapping of the EFI memory map is unmapped during an early
initcall, at which time the early ioremap support is long gone.

Fix by adding the missing call to early_ioremap_reset() to
setup_arch(), and move the offending early_memunmap() to right after
the point where the early mapping of the EFI memory map is last used.

Fixes: f84d02755f ("arm64: add EFI runtime services")
Cc: <stable@vger.kernel.org>
Signed-off-by: Leif Lindholm <leif.lindholm@linaro.org>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2015-01-08 11:57:04 +00:00
..
boot ARM64: SoC changes for 3.19 2014-12-09 17:17:47 -08:00
configs arm64: defconfig: defconfig update for 3.19 2014-12-23 16:39:17 +00:00
crypto Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2014-12-13 13:33:26 -08:00
include arm64: fix missing linux/bug.h include in asm/arch_timer.h 2015-01-07 11:40:59 +00:00
kernel arm64/efi: add missing call to early_ioremap_reset() 2015-01-08 11:57:04 +00:00
kvm 3.19 changes for KVM: 2014-12-18 16:05:28 -08:00
lib arm64: __clear_user: handle exceptions on strb 2014-11-13 15:21:26 +00:00
mm arm64: mm: dump: don't skip final region 2014-12-11 12:08:07 +00:00
net arm64: bpf: lift restriction on last instruction 2014-12-03 18:04:09 +00:00
xen arm: xen: implement multicall hypercall support. 2014-04-24 13:09:46 +01:00
Kconfig Merge branch 'irq-irqdomain-arm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-12-15 17:30:09 -08:00
Kconfig.debug arm64: add support to dump the kernel page tables 2014-11-26 17:19:18 +00:00
Makefile dts, arm/arm64: Remove dtbs build rules in sub-makes 2014-10-21 18:06:58 +02:00