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94f8e6418d
linux/arch/arm/include/asm
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Christoffer Dall 94f8e6418d KVM: ARM: Handle guest faults in KVM 
Handles the guest faults in KVM by mapping in corresponding user pages
in the 2nd stage page tables.

We invalidate the instruction cache by MVA whenever we map a page to the
guest (no, we cannot only do it when we have an iabt because the guest
may happily read/write a page before hitting the icache) if the hardware
uses VIPT or PIPT.  In the latter case, we can invalidate only that
physical page.  In the first case, all bets are off and we simply must
invalidate the whole affair.  Not that VIVT icaches are tagged with
vmids, and we are out of the woods on that one.  Alexander Graf was nice
enough to remind us of this massive pain.

Reviewed-by: Will Deacon <will.deacon@arm.com>
Reviewed-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <c.dall@virtualopensystems.com>
2013-01-23 13:29:16 -05:00
..
hardware ARM: arm-soc: SoC updates for 3.8 2012-12-12 12:05:15 -08:00
mach ARM: arm-soc: SoC updates for 3.8 2012-12-12 12:05:15 -08:00
xen xen: arm: implement remap interfaces needed for privcmd mappings. 2012-11-29 14:00:19 +00:00
a.out-core.h ARM: 6798/1: aout-core: zero thread debug registers in a.out core dump 2011-03-10 15:16:29 +00:00
arch_timer.h ARM: 7538/1: delay: add registration mechanism for delay timer sources 2012-09-26 22:57:52 +01:00
asm-offsets.h kbuild: move asm-offsets.h to include/generated 2009-12-12 13:08:14 +01:00
assembler.h ARM: 7599/1: head: Remove boot-time HYP mode check for v5 and below 2012-12-11 00:19:29 +00:00
atomic.h ARM: fix warnings about atomic64_read 2012-07-05 13:06:32 +01:00
barrier.h ARM: kill off arch_is_coherent 2012-10-02 08:58:07 +02:00
bitops.h Disintegrate asm/system.h for ARM 2012-03-28 18:30:01 +01:00
bug.h Disintegrate asm/system.h for ARM 2012-03-28 18:30:01 +01:00
bugs.h
cache.h ARM: implement support for read-mostly sections 2010-12-05 08:39:36 +00:00
cacheflush.h ARM: mm: implement LoUIS API for cache maintenance ops 2012-09-25 11:20:25 +01:00
cachetype.h ARM: 7062/1: cache: detect PIPT I-cache using CTR 2011-10-17 09:13:41 +01:00
checksum.h
clkdev.h ARM: Consolidate the clkdev header files 2011-07-19 18:09:45 +02:00
cmpxchg.h ARM: 7404/1: cmpxchg64: use atomic64 and local64 routines for cmpxchg64 2012-04-28 17:32:44 +01:00
compiler.h Disintegrate asm/system.h for ARM 2012-03-28 18:30:01 +01:00
cp15.h Disintegrate asm/system.h for ARM 2012-03-28 18:30:01 +01:00
cpu.h ARM: kernel: add MIDR to per-CPU information data 2012-11-19 14:51:11 +00:00
cpuidle.h cpuidle: Add common time keeping and irq enabling 2012-03-21 01:59:40 -04:00
cputype.h ARM: Define CPU part numbers and implementors 2013-01-11 14:56:30 +00:00
cti.h ARM: cti: fix manipulation of debug lock registers 2012-11-15 21:39:34 +00:00
delay.h ARM: 7538/1: delay: add registration mechanism for delay timer sources 2012-09-26 22:57:52 +01:00
device.h ARM: dma-mapping: add support for IOMMU mapper 2012-05-21 15:06:23 +02:00
div64.h Disintegrate asm/system.h for ARM 2012-03-28 18:30:01 +01:00
dma-contiguous.h ARM: integrate CMA with DMA-mapping subsystem 2012-05-21 15:09:38 +02:00
dma-iommu.h ARM: dma-mapping: add support for IOMMU mapper 2012-05-21 15:06:23 +02:00
dma-mapping.h IOMMU Updates for Linux v3.8 2012-12-20 10:07:25 -08:00
dma.h Disintegrate asm/system.h for ARM 2012-03-28 18:30:01 +01:00
domain.h ARM: fix set_domain() macro 2012-07-05 09:50:55 +01:00
ecard.h ARM: io: ecard: move ioaddr() inside __ecard_address 2011-08-17 08:44:16 +01:00
edac.h ARM: 7201/1: add EDAC atomic_scrub function 2011-12-11 08:35:50 +00:00
elf.h ARM: 7294/1: vectors: use gate_vma for vectors user mapping 2012-03-24 09:38:51 +00:00
entry-macro-multi.S ARM: gic: consolidate PPI handling 2011-10-23 13:32:29 +01:00
exception.h ARM: 7115/4: move __exception and friends to asm/exception.h 2011-10-17 09:02:44 +01:00
fb.h
fiq.h ARM: 6940/1: fiq: Briefly document driver responsibilities for suspend/resume 2011-05-26 10:31:06 +01:00
fixmap.h [ARM] fixmap support 2009-03-15 21:01:20 -04:00
flat.h ARM: binfmt_flat: unused variable 'persistent' 2012-10-09 20:29:06 +02:00
floppy.h
fncpy.h ARM: 6640/1: Thumb-2: Symbol manipulation macros for function body copying 2011-01-27 11:48:58 +00:00
fpstate.h Fix common misspellings 2011-03-31 11:26:23 -03:00
ftrace.h ARM: 6319/1: ftrace: add Thumb-2 support to dynamic ftrace 2010-09-02 15:28:43 +01:00
futex.h ARM: 7425/1: extable: ensure fixup entries are 4-byte aligned 2012-06-16 16:30:25 +01:00
glue-cache.h Merge branch 'fixes' into for-linus 2012-10-11 10:55:04 +01:00
glue-df.h ARM: Remove support for ARMv3 ARM610 and ARM710 CPUs 2012-05-05 05:50:50 +01:00
glue-pf.h ARM: move cache/processor/fault glue to separate include files 2011-02-12 11:52:21 +00:00
glue-proc.h ARM: Remove support for ARMv3 ARM610 and ARM710 CPUs 2012-05-05 05:50:50 +01:00
glue.h Fix common misspellings 2011-03-31 11:26:23 -03:00
gpio.h ARM: make mach/gpio.h headers optional 2012-09-14 09:21:59 -05:00
hardirq.h ARM: 7536/1: smp: Formalize an IPI for wakeup 2012-09-19 21:52:08 +01:00
highmem.h highmem: kill all __kmap_atomic() 2012-03-20 21:48:30 +08:00
hw_breakpoint.h ARM: hw_breakpoint: use CRn as argument for debug reg accessor macros 2012-11-09 11:47:06 +00:00
hw_irq.h arm: dove: Use proper irq accessor functions 2011-03-29 14:47:57 +02:00
hwcap.h UAPI: (Scripted) Disintegrate arch/arm/include/asm 2012-10-12 13:05:52 +01:00
hypervisor.h arm: initial Xen support 2012-09-14 13:53:39 +00:00
ide.h
idmap.h ARM: Section based HYP idmap 2013-01-23 13:29:09 -05:00
io.h Merge 3.7-rc6 into char-misc-next 2012-11-16 18:21:36 -08:00
irq.h ARM: only include mach/irqs.h for !SPARSE_IRQ 2012-01-30 13:24:37 -06:00
irqflags.h Fix IRQ flag handling naming 2010-10-07 14:08:55 +01:00
jump_label.h ARM: 7386/1: jump_label: fixup for rename to static_key 2012-04-15 22:00:31 +01:00
Kbuild Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm 2012-12-12 11:30:02 -08:00
kexec.h [ARM] add machine-specific hook to machine_kexec 2011-03-03 16:26:55 -05:00
kgdb.h kgdb,arm: fix register dump 2010-10-29 13:14:40 -05:00
kmap_types.h arm: remove km_type definitions 2012-07-24 15:27:28 +08:00
kprobes.h Kernel: Audit Support For The ARM Platform 2012-01-17 16:17:01 -05:00
kvm_arm.h KVM: ARM: Emulation framework and CP15 emulation 2013-01-23 13:29:13 -05:00
kvm_asm.h KVM: ARM: Handle guest faults in KVM 2013-01-23 13:29:16 -05:00
kvm_coproc.h KVM: ARM: User space API for getting/setting co-proc registers 2013-01-23 13:29:14 -05:00
kvm_emulate.h KVM: ARM: Emulation framework and CP15 emulation 2013-01-23 13:29:13 -05:00
kvm_host.h KVM: ARM: User space API for getting/setting co-proc registers 2013-01-23 13:29:14 -05:00
kvm_mmu.h KVM: ARM: Handle guest faults in KVM 2013-01-23 13:29:16 -05:00
limits.h
linkage.h
localtimer.h ARM: local timers: make the runtime registration interface mandatory 2012-03-13 13:45:55 +00:00
mach-types.h arm: move mach-types to include/generated 2009-12-12 13:08:14 +01:00
mc146818rtc.h ARM: mc146818rtc: remove unnecessary include of mach/irqs.h 2012-01-25 20:37:45 -06:00
memblock.h ARM: Add arm_memblock_steal() to allocate memory away from the kernel 2012-01-13 15:02:35 +00:00
memory.h ARM: kill off arch_is_coherent 2012-10-02 08:58:07 +02:00
mmu_context.h ARM: 7582/2: rename kvm_seq to vmalloc_seq so to avoid confusion with KVM 2012-11-26 12:23:53 +00:00
mmu.h ARM: 7582/2: rename kvm_seq to vmalloc_seq so to avoid confusion with KVM 2012-11-26 12:23:53 +00:00
module.h Make most arch asm/module.h files use asm-generic/module.h 2012-09-28 14:31:03 +09:30
mtd-xip.h [ARM] move asm/xip.h's mach/hardware.h include to mach/xip.h 2008-12-14 13:22:51 +00:00
mutex.h ARM: 7495/1: mutex: use generic atomic_dec-based implementation for ARMv6+ 2012-08-25 09:22:31 +01:00
nwflash.h
opcodes-virt.h ARM: opcodes: add __ERET/__MSR_ELR_HYP instruction encoding 2012-09-19 08:32:49 +01:00
opcodes.h ARM: 7511/1: opcodes: Opcode definitions for the Virtualization Extensions 2012-09-15 21:26:00 +01:00
outercache.h ARM: 7114/1: cache-l2x0: add resume entry for l2 in secure mode 2011-10-17 09:11:51 +01:00
page-nommu.h nommu: Remove the memory_start/end variables from ARM page-nommu.h 2009-07-24 12:35:01 +01:00
page.h UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers 2012-10-02 18:01:25 +01:00
pci.h PCI: collapse pcibios_resource_to_bus 2012-02-23 20:19:04 -07:00
percpu.h ARM: 7587/1: implement optimized percpu variable access 2012-12-03 11:16:36 +00:00
perf_event.h ARM: 7584/1: perf: fix link error when CONFIG_HW_PERF_EVENTS is not selected 2012-11-23 13:01:30 +00:00
pgalloc.h ARM: LPAE: Page table maintenance for the 3-level format 2011-12-08 10:30:39 +00:00
pgtable-2level-hwdef.h ARM: 7077/1: LPAE: Use a mask for physical addresses in page table entries 2011-10-06 15:40:06 +01:00
pgtable-2level-types.h ARM: 7076/1: LPAE: Add (pte|pmd)val_t type definitions as u32 2011-10-06 15:40:05 +01:00
pgtable-2level.h ARM: mm: introduce present, faulting entries for PAGE_NONE 2012-11-09 14:13:20 +00:00
pgtable-3level-hwdef.h KVM: ARM: Hypervisor initialization 2013-01-23 13:29:10 -05:00
pgtable-3level-types.h ARM: LPAE: Introduce the 3-level page table format definitions 2011-12-08 10:30:39 +00:00
pgtable-3level.h ARM: Add page table and page defines needed by KVM 2013-01-23 13:29:08 -05:00
pgtable-hwdef.h ARM: LPAE: Introduce the 3-level page table format definitions 2011-12-08 10:30:39 +00:00
pgtable-nommu.h Remove remaining bits of io_remap_page_range() 2012-03-23 16:58:31 -07:00
pgtable.h ARM: Add page table and page defines needed by KVM 2013-01-23 13:29:08 -05:00
pmu.h ARM: perf: consistently use arm_pmu->name for PMU name 2012-11-09 11:37:26 +00:00
proc-fns.h ARM: LPAE: Page table maintenance for the 3-level format 2011-12-08 10:30:39 +00:00
processor.h arm: split ret_from_fork, simplify kernel_thread() [based on patch by rmk] 2012-09-30 22:21:36 -04:00
procinfo.h
prom.h Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm 2012-12-12 11:30:02 -08:00
ptrace.h UAPI: (Scripted) Disintegrate arch/arm/include/asm 2012-10-12 13:05:52 +01:00
scatterlist.h ARM: Allow SoCs to enable scatterlist chaining 2011-06-02 11:16:22 +01:00
sched_clock.h ARM: 7565/1: sched: stop sched_clock() during suspend 2012-10-29 10:02:49 +00:00
seccomp.h ARM: SECCOMP support 2010-10-01 22:32:18 -04:00
setup.h UAPI: (Scripted) Disintegrate arch/arm/include/asm 2012-10-12 13:05:52 +01:00
shmparam.h
signal.h unify default ptrace_signal_deliver 2012-11-29 00:01:23 -05:00
smp_plat.h ARM: kernel: add logical mappings look-up 2012-11-19 15:44:34 +00:00
smp_scu.h ARM: pm: add function to set WFI low-power mode for SMP CPUs 2011-02-11 12:29:18 +00:00
smp_twd.h ARM: smp_twd: remove old local timer interface 2012-03-13 13:45:54 +00:00
smp.h ARM: 7571/1: SMP: add function arch_send_wakeup_ipi_mask() 2012-11-13 11:47:40 +00:00
sparsemem.h
spinlock_types.h ARM: 7446/1: spinlock: use ticket algorithm for ARMv6+ locking implementation 2012-07-09 17:41:10 +01:00
spinlock.h ARM: 7447/1: rwlocks: remove unused branch labels from trylock routines 2012-07-09 17:41:10 +01:00
stackprotector.h ARM: initial stack protector (-fstack-protector) support 2010-06-14 21:31:00 -04:00
stacktrace.h [ARM] 5382/1: unwind: Reorganise the stacktrace support 2009-02-12 13:21:17 +00:00
string.h
suspend.h ARM: pm: preallocate a page table for suspend/resume 2011-09-20 23:33:36 +01:00
swab.h UAPI: (Scripted) Disintegrate arch/arm/include/asm 2012-10-12 13:05:52 +01:00
switch_to.h Disintegrate asm/system.h for ARM 2012-03-28 18:30:01 +01:00
sync_bitops.h xen/arm: sync_bitops 2012-08-08 16:34:01 +00:00
syscall.h ARM: 7577/1: arch/add syscall_get_arch 2012-11-19 14:14:17 +00:00
system_info.h Disintegrate asm/system.h for ARM 2012-03-28 18:30:01 +01:00
system_misc.h Disintegrate and delete asm/system.h 2012-03-28 15:58:21 -07:00
system.h the only place that needs to include asm/exec.h is linux/binfmts.h 2012-09-20 09:51:13 -04:00
tcm.h ARM: 6985/1: export functions to determine the presence of I/DTCM 2011-07-06 20:49:45 +01:00
therm.h
thread_info.h ARM: 7578/1: arch/move secure_computing into trace 2012-11-19 14:14:17 +00:00
thread_notify.h ARM: 6867/1: Introduce THREAD_NOTIFY_COPY for copy_thread() hooks 2011-04-10 21:13:36 +01:00
timex.h Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm 2012-10-07 21:20:57 +09:00
tlb.h ARM: 7503/1: mm: only flush both pmd entries for classic MMU 2012-08-25 09:15:57 +01:00
tlbflush.h ARM: Remove support for ARMv3 ARM610 and ARM710 CPUs 2012-05-05 05:50:50 +01:00
tls.h ARM: 7403/1: tls: remove covert channel via TPIDRURW 2012-04-28 11:01:30 +01:00
topology.h ARM: 7182/1: ARM cpu topology: fix warning 2011-11-30 23:55:21 +00:00
traps.h ARM: earlier initialization of vectors page 2012-01-23 10:24:11 +00:00
uaccess.h ARM: warnings in arch/arm/include/asm/uaccess.h 2012-10-09 20:29:07 +02:00
ucontext.h Fix common misspellings 2011-03-31 11:26:23 -03:00
unified.h ARM: make BSYM macro assembly only 2012-01-16 08:56:25 -06:00
unistd.h Bury the conditionals from kernel_thread/kernel_execve series 2012-12-19 18:07:38 -05:00
unwind.h ARM: 7187/1: fix unwinding for XIP kernels 2011-12-06 11:16:13 +00:00
user.h ARM: 6798/1: aout-core: zero thread debug registers in a.out core dump 2011-03-10 15:16:29 +00:00
vfp.h
vfpmacros.h ARM: 7566/1: vfp: fix save and restore when running on pre-VFPv3 and CONFIG_VFPv3 set 2012-10-29 10:04:05 +00:00
vga.h ARM: set vga memory base at run-time 2011-07-12 11:19:29 -05:00
virt.h ARM: virt: Add boot-time diagnostics 2012-09-19 08:32:52 +01:00
word-at-a-time.h ARM: 7450/1: dcache: select DCACHE_WORD_ACCESS for little-endian ARMv6+ CPUs 2012-07-09 17:41:11 +01:00
xor.h