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Mark Salter e8c827bae7 arm: KVM: fix possible misalignment of PGDs and bounce page 
commit 5d4e08c45a upstream.

The kvm/mmu code shared by arm and arm64 uses kalloc() to allocate
a bounce page (if hypervisor init code crosses page boundary) and
hypervisor PGDs. The problem is that kalloc() does not guarantee
the proper alignment. In the case of the bounce page, the page sized
buffer allocated may also cross a page boundary negating the purpose
and leading to a hang during kvm initialization. Likewise the PGDs
allocated may not meet the minimum alignment requirements of the
underlying MMU. This patch uses __get_free_page() to guarantee the
worst case alignment needs of the bounce page and PGDs on both arm
and arm64.

Signed-off-by: Mark Salter <msalter@redhat.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 		2014-05-13 13:32:47 +02:00
..
boot ARM: dts: am335x: update USB DT references 2014-05-06 07:59:38 -07:00
common ARM: SoC platform changes for 3.14 2014-01-23 18:40:49 -08:00
configs ARM: tegra: add LED options back into tegra_defconfig 2014-02-28 21:35:58 +01:00
crypto CRYPTO: Fix more AES build errors 2014-01-05 13:59:56 +00:00
firmware
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include ARM: 8027/1: fix do_div() bug in big-endian systems 2014-05-06 07:59:22 -07:00
kernel ARM: 8030/1: ARM : kdump : add arch_crash_save_vmcoreinfo 2014-05-06 07:59:22 -07:00
kvm arm: KVM: fix possible misalignment of PGDs and bounce page 2014-05-13 13:32:47 +02:00
lib
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mach-at91 ARM: SoC platform changes for 3.14 2014-01-23 18:40:49 -08:00
mach-bcm ARM: pinctrl: Add Broadcom Capri pinctrl driver 2014-01-16 14:25:38 +01:00
mach-bcm2835 ARM: bcm2835: Fix grammar in help message 2014-01-02 12:07:52 -08:00
mach-berlin
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mach-clps711x ARM: SoC platform changes for 3.14 2014-01-23 18:40:49 -08:00
mach-cns3xxx
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mach-davinci ARM: driver updates for 3.14 2014-01-23 18:49:36 -08:00
mach-dove
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mach-ebsa110
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mach-efm32
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mach-ep93xx
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mach-exynos ACPI and power management updates for 3.14-rc1 2014-01-24 15:51:02 -08:00
mach-footbridge Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2014-01-24 17:17:30 -08:00
mach-gemini
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mach-highbank Merge branches 'amba', 'fixes', 'kees', 'misc' and 'unstable/sa11x0' into for-next 2014-01-21 21:26:33 +00:00
mach-hisi ARM: hisi: fix kconfig warning on HAVE_ARM_TWD 2014-02-02 19:52:42 -08:00
mach-imx ARM: imx6: build pm-imx6q.c independently of CONFIG_PM 2014-02-18 16:03:43 -08:00
mach-integrator ARM: integrator: restore static map on the CP 2014-01-31 14:58:52 -08:00
mach-iop13xx
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mach-iop32x ARM: iop32x: fix power off handling for the EM7210 board 2014-01-31 14:58:53 -08:00
mach-iop33x
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mach-ixp4xx ARM: SoC platform changes for 3.14 2014-01-23 18:40:49 -08:00
mach-keystone ARM: keystone: config: fix build warning when CONFIG_DMADEVICES is not set 2014-01-31 15:03:53 -08:00
mach-kirkwood mvebu fixes for v3.13 (incremental #2) 2014-01-31 14:59:28 -08:00
mach-ks8695
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mach-lpc32xx
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mach-mmp ARM: SoC platform changes for 3.14 2014-01-23 18:40:49 -08:00
mach-moxart ARM: moxart: move DMA_OF selection to driver 2014-02-02 19:52:45 -08:00
mach-msm ARM: driver updates for 3.14 2014-01-23 18:49:36 -08:00
mach-mv78xx0
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mach-mvebu mvebu fixes for v3.13 (incremental #2) 2014-01-31 14:59:28 -08:00
mach-mxs
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mach-netx
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mach-nomadik
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mach-nspire
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mach-omap1 ARM: OMAP1: nokia770: enable tahvo-usb 2014-02-13 15:20:14 -08:00
mach-omap2 ARM: OMAP3: hwmod data: Correct clock domains for USB modules 2014-05-06 07:59:21 -07:00
mach-orion5x
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mach-picoxcell
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mach-prima2
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mach-pxa ARM: pxa: hx4700.h: include "irqs.h" for PXA_NR_BUILTIN_GPIO 2014-05-06 07:59:23 -07:00
mach-realview
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mach-rockchip
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mach-rpc
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mach-s3c24xx ARM: SoC cleanups for 3.14 2014-01-23 18:36:55 -08:00
mach-s3c64xx ARM: SoC cleanups for 3.14 2014-01-23 18:36:55 -08:00
mach-s5p64x0
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mach-s5pc100
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mach-s5pv210
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mach-sa1100 ARM: 7991/1: sa1100: fix compile problem on Collie 2014-03-07 22:04:08 +00:00
mach-shmobile ARM: fix HAVE_ARM_TWD selection for OMAP and shmobile 2014-02-02 19:52:53 -08:00
mach-socfpga
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mach-spear
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mach-sti
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mach-sunxi ARM: SoC platform changes for 3.14 2014-01-23 18:40:49 -08:00
mach-tegra ARM: SoC fixes for 3.14-rc 2014-02-23 17:38:04 -08:00
mach-u300 ARM: SoC platform changes for 3.14 2014-01-23 18:40:49 -08:00
mach-ux500 ARM: SoC DT updates for 3.14 2014-01-23 18:45:38 -08:00
mach-versatile
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mach-vexpress
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mach-virt
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mach-vt8500
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mach-w90x900
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mach-zynq ARM: zynq: Reserve not DMAable space in front of the kernel 2014-02-10 10:45:42 -08:00
mm ARM: 7954/1: mm: remove remaining domain support from ARMv6 2014-05-06 07:59:22 -07:00
net bpf: do not use reciprocal divide 2014-01-15 17:02:08 -08:00
nwfpe
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oprofile
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plat-iop
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plat-omap
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plat-orion mvebu fixes for v3.13 (incremental #2) 2014-01-31 14:59:28 -08:00
plat-pxa
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plat-samsung MTD updates for 3.14: 2014-01-28 18:56:37 -08:00
plat-versatile ARM: SoC platform changes for 3.14 2014-01-23 18:40:49 -08:00
tools
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vfp
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xen xen/gnttab: Use phys_addr_t to describe the grant frame base address 2014-01-30 12:56:34 +00:00
Kconfig ARM: Fix default CPU selection for ARCH_MULTI_V5 2014-05-06 07:59:22 -07:00
Kconfig-nommu
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Kconfig.debug ARM: SoC platform changes for 3.14 2014-01-23 18:40:49 -08:00
Makefile Merge branches 'fixes' and 'misc' into for-linus 2014-01-28 21:38:48 +00:00