AuxXxilium/linux_dsm_epyc7002
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b7dd0e350e
linux_dsm_epyc7002/arch/arm
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David Vrabel b7dd0e350e x86/xen: safely map and unmap grant frames when in atomic context 
arch_gnttab_map_frames() and arch_gnttab_unmap_frames() are called in
atomic context but were calling alloc_vm_area() which might sleep.

Also, if a driver attempts to allocate a grant ref from an interrupt
and the table needs expanding, then the CPU may already by in lazy MMU
mode and apply_to_page_range() will BUG when it tries to re-enable
lazy MMU mode.

These two functions are only used in PV guests.

Introduce arch_gnttab_init() to allocates the virtual address space in
advance.

Avoid the use of apply_to_page_range() by using saving and using the
array of PTE addresses from the alloc_vm_area() call (which ensures
that the required page tables are pre-allocated).

Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2014-07-30 14:22:47 +01:00
..
boot Shiraz has moved 2014-04-18 16:40:08 -07:00
common ARM: SoC: driver changes 2014-04-05 15:37:40 -07:00
configs Update bcm_defconfig with new pinctrl CONFIG 2014-04-14 09:39:33 +02:00
crypto
firmware ARM: trusted_foundations: implement prepare_idle() 2014-02-18 13:46:46 -07:00
include arm,arm64/xen: introduce HYPERVISOR_suspend() 2014-05-12 17:20:24 +01:00
kernel Merge branch 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm 2014-04-11 11:56:40 -07:00
kvm CPU hotplug notifiers registration fixes for 3.15-rc1 2014-04-07 14:55:46 -07:00
lib ARM: 7990/1: asm: rename logical shift macros push pull into lspush lspull 2014-02-25 11:33:57 +00:00
mach-at91 ARM: SoC: cleanups for 3.15 2014-04-05 13:51:19 -07:00
mach-bcm ARM: SoC specific changes 2014-04-05 14:19:54 -07:00
mach-berlin ARM: select HAVE_SMP for V7 multi-platform 2014-02-19 16:43:27 -06:00
mach-clps711x ARM: SoC specific changes 2014-04-05 14:19:54 -07:00
mach-cns3xxx ARM: SoC: cleanups for 3.15 2014-04-05 13:51:19 -07:00
mach-davinci ARM: SoC: driver changes 2014-04-05 15:37:40 -07:00
mach-dove ARM: SoC: driver changes 2014-04-05 15:37:40 -07:00
mach-ebsa110 ARM: SoC: cleanups for 3.15 2014-04-05 13:51:19 -07:00
mach-efm32 ARM: efm32: drop unused file <mach/timex.h> 2014-02-24 10:07:27 +01:00
mach-ep93xx ARM: SoC: cleanups for 3.15 2014-04-05 13:51:19 -07:00
mach-exynos ARM: SoC: late cleanups 2014-04-05 15:46:37 -07:00
mach-footbridge ARM: SoC: cleanups for 3.15 2014-04-05 13:51:19 -07:00
mach-gemini ARM: SoC: cleanups for 3.15 2014-04-05 13:51:19 -07:00
mach-highbank ARM: select HAVE_SMP for V7 multi-platform 2014-02-19 16:43:27 -06:00
mach-hisi ARM: SoC: cleanups for 3.15 2014-04-05 13:51:19 -07:00
mach-imx ARM: SoC specific changes 2014-04-05 14:19:54 -07:00
mach-integrator ARM: SoC: late cleanups 2014-04-05 15:46:37 -07:00
mach-iop13xx
mach-iop32x This cleanup series gets rid of <mach/timex.h> for platforms not using 2014-02-24 10:06:56 +01:00
mach-iop33x
mach-ixp4xx ARM: SoC: cleanups for 3.15 2014-04-05 13:51:19 -07:00
mach-keystone ARM: SoC: device tree changes 2014-04-05 15:29:04 -07:00
mach-kirkwood ARM: SoC: driver changes 2014-04-05 15:37:40 -07:00
mach-ks8695 ARM: SoC: cleanups for 3.15 2014-04-05 13:51:19 -07:00
mach-lpc32xx ARM: SoC: cleanups for 3.15 2014-04-05 13:51:19 -07:00
mach-mmp ARM: SoC: cleanups for 3.15 2014-04-05 13:51:19 -07:00
mach-moxart ARM: SoC: cleanups for 3.15 2014-04-05 13:51:19 -07:00
mach-msm ARM: SoC specific changes 2014-04-05 14:19:54 -07:00
mach-mv78xx0 ARM: SoC: driver changes 2014-04-05 15:37:40 -07:00
mach-mvebu ARM: SoC specific changes 2014-04-05 14:19:54 -07:00
mach-mxs ARM: SoC: device tree changes 2014-04-05 15:29:04 -07:00
mach-netx ARM: SoC: cleanups for 3.15 2014-04-05 13:51:19 -07:00
mach-nomadik ARM: centralize common multi-platform kconfig options 2014-02-19 16:38:18 -06:00
mach-nspire ARM: SoC: cleanups for 3.15 2014-04-05 13:51:19 -07:00
mach-omap1 ARM: SoC: cleanups for 3.15 2014-04-05 13:51:19 -07:00
mach-omap2 fbdev changes for 3.15 (OMAP) 2014-04-07 10:47:51 -07:00
mach-orion5x ARM: SoC: driver changes 2014-04-05 15:37:40 -07:00
mach-picoxcell Kconfig: rename HAS_IOPORT to HAS_IOPORT_MAP 2014-04-07 16:36:11 -07:00
mach-prima2 Kconfig: rename HAS_IOPORT to HAS_IOPORT_MAP 2014-04-07 16:36:11 -07:00
mach-pxa pwm: Changes for v3.15-rc1 2014-04-05 18:32:31 -07:00
mach-qcom ARM: qcom: Add SMP support for KPSSv2 2014-02-11 15:00:40 -06:00
mach-realview ARM: SoC: cleanups for 3.15 2014-04-05 13:51:19 -07:00
mach-rockchip i.MX SoC changes for 3.15: 2014-03-09 12:03:18 -07:00
mach-rpc ARM: SoC: cleanups for 3.15 2014-04-05 13:51:19 -07:00
mach-s3c24xx Kconfig: rename HAS_IOPORT to HAS_IOPORT_MAP 2014-04-07 16:36:11 -07:00
mach-s3c64xx ARM: SoC: late cleanups 2014-04-05 15:46:37 -07:00
mach-s5p64x0 ARM: SoC: late cleanups 2014-04-05 15:46:37 -07:00
mach-s5pc100 ARM: SoC: late cleanups 2014-04-05 15:46:37 -07:00
mach-s5pv210 ARM: SoC: late cleanups 2014-04-05 15:46:37 -07:00
mach-sa1100 ARM: SoC: cleanups for 3.15 2014-04-05 13:51:19 -07:00
mach-shmobile Kconfig: rename HAS_IOPORT to HAS_IOPORT_MAP 2014-04-07 16:36:11 -07:00
mach-socfpga The clock framework changes for 3.15 look similar to past pull requests. 2014-04-05 18:39:18 -07:00
mach-spear Shiraz has moved 2014-04-18 16:40:08 -07:00
mach-sti Merge branch 'cleanup/kconfig' into next/drivers 2014-03-18 16:25:47 +01:00
mach-sunxi ARM: SoC specific changes 2014-04-05 14:19:54 -07:00
mach-tegra ARM: SoC specific changes 2014-04-05 14:19:54 -07:00
mach-u300 ARM: SoC: cleanups for 3.15 2014-04-05 13:51:19 -07:00
mach-ux500 ARM: SoC: device tree changes 2014-04-05 15:29:04 -07:00
mach-versatile ARM: SoC: driver changes 2014-04-05 15:37:40 -07:00
mach-vexpress Merge branch 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm 2014-04-11 11:56:40 -07:00
mach-vt8500 ARM: vt8500: enable V6K instead of plain V6 2014-02-19 16:47:16 -06:00
mach-w90x900 ARM: SoC: cleanups for 3.15 2014-04-05 13:51:19 -07:00
mach-zynq ARM: SoC: late cleanups 2014-04-05 15:46:37 -07:00
mm Merge branch 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm 2014-04-11 11:56:40 -07:00
net net: filter: add jited flag to indicate jit compiled filters 2014-03-31 00:45:08 -04:00
nwfpe
oprofile
plat-iop ARM: 8000/1: misc: remove deprecated IRQF_DISABLED 2014-03-12 10:32:38 +00:00
plat-omap ARM: SoC: device tree changes 2014-04-05 15:29:04 -07:00
plat-orion ARM: SoC: driver changes 2014-04-05 15:37:40 -07:00
plat-pxa
plat-samsung Kconfig: rename HAS_IOPORT to HAS_IOPORT_MAP 2014-04-07 16:36:11 -07:00
plat-versatile
tools
vfp ARM: 8018/1: Add {inc,dec}_preempt_count asm macros 2014-04-09 13:08:08 +01:00
xen x86/xen: safely map and unmap grant frames when in atomic context 2014-07-30 14:22:47 +01:00
Kconfig Merge git://git.infradead.org/users/eparis/audit 2014-04-12 12:38:53 -07:00
Kconfig-nommu
Kconfig.debug ARM: SoC: late cleanups 2014-04-05 15:46:37 -07:00
Makefile ARM: SoC: cleanups for 3.15 2014-04-05 13:51:19 -07:00