Konstantin Khlebnikov 2e926a6b96 ARM: 8115/1: LPAE: reduce damage caused by idmap to virtual memory layout ... commit 811a2407a3 upstream. On LPAE, each level 1 (pgd) page table entry maps 1GiB, and the level 2 (pmd) entries map 2MiB. When the identity mapping is created on LPAE, the pgd pointers are copied from the swapper_pg_dir. If we find that we need to modify the contents of a pmd, we allocate a new empty pmd table and insert it into the appropriate 1GB slot, before then filling it with the identity mapping. However, if the 1GB slot covers the kernel lowmem mappings, we obliterate those mappings. When replacing a PMD, first copy the old PMD contents to the new PMD, so that we preserve the existing mappings, particularly the mappings of the kernel itself. [rewrote commit message and added code comment -- rmk] Fixes: ae2de10173 ("ARM: LPAE: Add identity mapping support for the 3-level page table format") Signed-off-by: Konstantin Khlebnikov <k.khlebnikov@samsung.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2014-08-07 12:00:10 -07:00
..
boot	ARM: 7743/1: compressed/head.S: work around new binutils warning	2014-04-14 06:44:20 -07:00
common	ARM: 7377/1: vic: re-read status register before dispatching each IRQ handler	2012-04-10 09:27:42 +01:00
configs	mmc: at91/avr32/atmel-mci: fix DMA-channel leak on module unload	2013-05-07 19:51:57 -07:00
include/asm	ARM: 8051/1: put_user: fix possible data corruption in put_user	2014-06-11 12:04:11 -07:00
kernel	ARM: stacktrace: avoid listing stacktrace functions in stacktrace	2014-06-30 20:01:33 -07:00
lib	ARM: 7670/1: fix the memset fix	2013-11-20 10:43:19 -08:00
mach-at91	ARM: at91: smc: bug fix in sam9_smc_cs_read()	2014-02-06 11:05:47 -08:00
mach-bcmring	ARM: bcmring: fix UART declarations	2012-04-18 21:21:45 -07:00
mach-clps711x
mach-cns3xxx	ARM: cns3xxx: fix mapping of private memory region	2013-04-05 10:04:35 -07:00
mach-davinci
mach-dove	ARM: Orion: Set eth packet size csum offload limit	2014-04-14 06:44:20 -07:00
mach-ebsa110
mach-ep93xx
mach-exynos	Revert: ARM: SAMSUNG: Add naming of s3c64xx-spi devices	2012-11-05 09:50:42 +01:00
mach-footbridge	ARM: footbridge: fix VGA initialisation	2014-04-14 06:44:20 -07:00
mach-gemini
mach-h720x
mach-highbank
mach-imx	ARM: imx6: spin the cpu until hardware takes it down	2012-09-14 10:00:05 -07:00
mach-integrator	ARM: integrator_cp: Set LCD{0,1} enable lines when turning on CLCD	2013-12-04 10:50:13 -08:00
mach-iop13xx
mach-iop32x
mach-iop33x
mach-ixp4xx	ixp4xx: fix compilation by adding gpiolib support	2012-06-10 00:36:08 +09:00
mach-ixp23xx
mach-ixp2000
mach-kirkwood	ARM: Orion: Set eth packet size csum offload limit	2014-04-14 06:44:20 -07:00
mach-ks8695
mach-l7200/include/mach
mach-lpc32xx
mach-mmp
mach-msm	ARM: msm: Fix gic irqdomain support	2012-04-23 16:13:27 -07:00
mach-mv78xx0	ARM: Orion: Set eth packet size csum offload limit	2014-04-14 06:44:20 -07:00
mach-mxs
mach-netx
mach-nomadik
mach-omap1	ARM: OMAP1: Amstrad Delta: Fix wrong IRQ base in FIQ handler	2012-05-04 09:53:09 -07:00
mach-omap2	ARM: OMAP2+: Fix parser-bug in platform muxing code	2014-07-09 10:51:20 -07:00
mach-orion5x	ARM: Orion: Set eth packet size csum offload limit	2014-04-14 06:44:20 -07:00
mach-picoxcell
mach-pnx4008
mach-prima2	ARM: PRIMA2: fix irq domain size and IRQ mask of internal interrupt controller	2012-05-16 21:52:13 -07:00
mach-pxa	ARM: pxa: prevent PXA270 occasional reboot freezes	2014-04-14 06:44:20 -07:00
mach-realview	ARM: 7607/1: realview: fix private peripheral memory base for EB rev. B boards	2013-01-11 09:07:16 -08:00
mach-rpc
mach-s3c24xx	ARM: samsung: fix assembly syntax for new gas	2013-02-28 06:59:04 -08:00
mach-s3c64xx
mach-s3c2410
mach-s3c2412
mach-s3c2440
mach-s5p64x0	Revert: ARM: SAMSUNG: Add naming of s3c64xx-spi devices	2012-11-05 09:50:42 +01:00
mach-s5pc100	Revert: ARM: SAMSUNG: Add naming of s3c64xx-spi devices	2012-11-05 09:50:42 +01:00
mach-s5pv210	Revert: ARM: SAMSUNG: Add naming of s3c64xx-spi devices	2012-11-05 09:50:42 +01:00
mach-sa1100	ARM: 7991/1: sa1100: fix compile problem on Collie	2014-03-23 21:37:05 -07:00
mach-shark
mach-shmobile	ARM: shmobile: mackerel: Fix coherent DMA mask	2014-01-15 15:27:11 -08:00
mach-spear3xx
mach-spear6xx
mach-tegra	ARM: tegra: make tegra_cpu_reset_handler_enable() __init	2012-07-16 09:03:20 -07:00
mach-u300	ARM: u300: fix ages old copy/paste bug	2014-04-14 06:44:20 -07:00
mach-ux500	arch/arm/mach-ux500/mbox-db5500.c: world-writable sysfs fifo file	2012-04-25 21:26:34 -07:00
mach-versatile	ARM: PCI: versatile: Fix SMAP register offsets	2013-09-26 17:15:30 -07:00
mach-vexpress
mach-vt8500
mach-w90x900	ARM: w90x900: fix legacy assembly syntax	2014-04-14 06:44:20 -07:00
mach-zynq
mm	ARM: 8115/1: LPAE: reduce damage caused by idmap to virtual memory layout	2014-08-07 12:00:10 -07:00
net
nwfpe
oprofile
plat-iop
plat-mxc
plat-nomadik
plat-omap	ARM: OMAP: counter: add locking to read_persistent_clock	2012-12-03 11:47:23 -08:00
plat-orion	ARM: Orion: Set eth packet size csum offload limit	2014-04-14 06:44:20 -07:00
plat-pxa
plat-s3c24xx	ARM: S3C24XX: Fix s3c2410_dma_enqueue parameters	2012-09-14 10:00:04 -07:00
plat-s5p	ARM: SAMSUNG: Update default rate for xusbxti clock	2012-07-29 08:04:21 -07:00
plat-samsung	ARM: samsung: fix assembly syntax for new gas	2013-02-28 06:59:04 -08:00
plat-spear
plat-versatile
tools
vfp	ARM: VFP: fix emulation of second VFP instruction	2013-03-14 11:29:41 -07:00
Kconfig	ARM: 7791/1: a.out: remove partial a.out support	2014-04-14 06:44:21 -07:00
Kconfig-nommu
Kconfig.debug
Makefile	ARM: 7513/1: Make sure dtc is built before running it	2012-10-02 10:29:51 -07:00