OpenCloudOS-Kernel/arch/x86/xen
Juergen Gross 90fff3ea15 xen: introduce helper functions to do safe read and write accesses
Introduce two helper functions to safely read and write unsigned long
values from or to memory when the access may fault because the mapping
is non-present or read-only.

These helpers can be used instead of open coded uses of __get_user()
and __put_user() avoiding the need to do casts to fix sparse warnings.

Use the helpers in page.h and p2m.c. This will fix the sparse
warnings when doing "make C=1".

Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
2014-12-08 10:53:59 +00:00
..
Kconfig Support PCI devices with multiple MSIs, performance improvement for 2014-04-03 14:01:37 -07:00
Makefile arch/x86/xen: Silence compiler warnings 2014-07-18 21:24:03 +01:00
apic.c xen/apic/xenbus/swiotlb/pcifront/grant/tmem: Make functions or variables static. 2012-08-21 14:50:03 -04:00
debugfs.c debugfs: Add support to print u32 array in debugfs 2012-04-17 00:18:36 -04:00
debugfs.h debugfs: Add support to print u32 array in debugfs 2012-04-17 00:18:36 -04:00
efi.c xen/efi: Directly include needed headers 2014-09-23 13:36:20 +00:00
enlighten.c x86/xen: delay construction of mfn_list_list 2014-10-23 16:24:02 +01:00
grant-table.c x86/xen: use vmap() to map grant table pages in PVH guests 2014-08-11 11:59:35 +01:00
irq.c asmlinkage, x86: Add explicit __visible to arch/x86/* 2014-05-05 16:07:44 -07:00
mmu.c xen: switch to linear virtual mapped sparse p2m list 2014-12-04 14:09:15 +00:00
mmu.h xen: make a pile of mmu pvop functions static 2011-05-20 14:25:24 -07:00
multicalls.c x86: Replace __get_cpu_var uses 2014-08-26 13:45:49 -04:00
multicalls.h xen: use this_cpu_xxx replace percpu_xxx funcs 2012-01-24 12:20:24 -05:00
p2m.c xen: introduce helper functions to do safe read and write accesses 2014-12-08 10:53:59 +00:00
p2m.h xen/setup: Remap Xen Identity Mapped RAM 2014-09-23 13:36:18 +00:00
pci-swiotlb-xen.c pci-swiotlb-xen: call pci_request_acs only ifdef CONFIG_PCI 2013-11-08 15:21:44 -05:00
platform-pci-unplug.c xen/pvhvm: Remove the xen_platform_pci int. 2014-01-03 14:54:53 -05:00
setup.c xen: Delay invalidating extra memory 2014-12-04 14:08:59 +00:00
smp.c x86/core, x86/xen/smp: Use 'die_complete' completion when taking CPU down 2014-11-10 11:16:40 +01:00
smp.h x86/xen: Set EFER.NX and EFER.SCE in PVH guests 2014-10-06 10:27:47 +01:00
spinlock.c x86: Replace __get_cpu_var uses 2014-08-26 13:45:49 -04:00
suspend.c xen: refactor suspend pre/post hooks 2014-05-12 17:19:56 +01:00
time.c x86/xen: Fix incorrect per_cpu accessor in xen_clocksource_read() 2014-10-23 16:24:02 +01:00
trace.c xen/trace: Fix compile error when CONFIG_XEN_PRIVILEGED_GUEST is not set 2011-08-05 09:43:02 -04:00
vdso.h
vga.c xen/vga: add the xen EFI video mode support 2012-09-24 09:28:57 -04:00
xen-asm.S xen: correctly check for pending events when restoring irq flags 2012-04-27 16:04:21 -04:00
xen-asm.h xen: make direct versions of irq_enable/disable/save/restore to common code 2009-02-04 16:59:04 -08:00
xen-asm_32.S x86/xen: Fix 32-bit PV guests's usage of kernel_stack 2014-04-15 15:00:14 +01:00
xen-asm_64.S xen: use iret for return from 64b kernel to 32b usermode 2009-12-03 11:14:54 -08:00
xen-head.S x86/xen: Set EFER.NX and EFER.SCE in PVH guests 2014-10-06 10:27:47 +01:00
xen-ops.h xen: switch to linear virtual mapped sparse p2m list 2014-12-04 14:09:15 +00:00