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9da5ac236d
linux_dsm_epyc7002/arch/arm/include/asm
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Russell King 9da5ac236d ARM: soft-reboot into same mode that we entered the kernel 
When we soft-reboot (eg, kexec) from one kernel into the next, we need
to ensure that we enter the new kernel in the same processor mode as
when we were entered, so that (eg) the new kernel can install its own
hypervisor - the old kernel's hypervisor will have been overwritten.

In order to do this, we need to pass a flag to cpu_reset() so it knows
what to do, and we need to modify the kernel's own hypervisor stub to
allow it to handle a soft-reboot.

As we are always guaranteed to install our own hypervisor if we're
entered in HYP32 mode, and KVM will have moved itself out of the way
on kexec/normal reboot, we can assume that our hypervisor is in place
when we want to kexec, so changing our hypervisor API should not be a
problem.

Tested-by: Keerthy <j-keerthy@ti.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <cdall@linaro.org>
2017-04-09 07:49:24 -07:00
..
hardware ARM: 8651/1: cache-uniphier: include <linux/errno.h> instead of <linux/types.h> 2017-02-28 11:06:16 +00:00
mach scripts/spelling.txt: add "partiton" pattern and fix typo instances 2017-02-27 18:43:46 -08:00
xen arm/arm64: xen: Move shared architecture headers to include/xen/arm 2016-12-02 11:49:55 -08:00
arch_gicv3.h ARM: gic-v3-its: Add 32bit support to GICv3 ITS 2016-11-29 09:14:48 +00:00
arch_timer.h clocksource: arch_timer: Fix code to use physical timers when requested 2014-12-04 23:30:26 -08:00
arm-cci.h arm-cci: Get rid of secure transactions for PMU driver 2015-03-27 13:44:35 +00:00
asm-offsets.h
assembler.h ARM: 8605/1: V7M: fix notrace variant of save_and_disable_irqs 2016-09-06 15:51:07 +01:00
atomic.h locking/atomic: Remove linux/atomic.h:atomic_fetch_or() 2016-06-16 10:48:32 +02:00
auxvec.h ARM: 8329/1: miscellaneous vdso infrastructure, preparation 2015-03-27 22:20:45 +00:00
barrier.h ARM: 8582/1: remove unused CONFIG_ARCH_HAS_BARRIERS 2016-07-02 11:01:08 +01:00
bitops.h ARM: 8417/1: refactor bitops functions with BIT_MASK() and BIT_WORD() 2015-08-18 14:00:30 +01:00
bitrev.h ARM: 8287/1: add bitrev.h file to support rbit instruction 2015-01-16 14:06:18 +00:00
bL_switcher.h
bug.h ARM: 8455/1: define __BUG as asm(BUG_INSTR) without CONFIG_BUG 2015-12-03 00:02:29 +00:00
bugs.h
cache.h
cacheflush.h arch: Rename CONFIG_DEBUG_RODATA and CONFIG_DEBUG_MODULE_RONX 2017-02-07 12:32:52 -08:00
cachetype.h ARM: 8604/1: V7M: Add support for reading the CTR with read_cpuid_cachetype() 2016-09-06 15:51:07 +01:00
checksum.h ipv6: Pass proto to csum_ipv6_magic as __u8 instead of unsigned short 2016-03-13 23:55:13 -04:00
clocksource.h arm/arm64: arch_timer: Use archdata to indicate vdso suitability 2016-09-23 17:19:25 +01:00
cmpxchg.h ARM: 8443/1: Adding support for atomic half word exchange 2015-10-09 16:22:54 +01:00
compiler.h ARM: 8300/1: teach __asmeq that r11 == fp and r12 == ip 2015-02-10 10:23:11 +00:00
cp15.h ARM: Move system register accessors to asm/cp15.h 2016-09-22 13:22:10 +02:00
cpu.h
cpuidle.h ARM: cpuidle: add const qualifier to cpuidle_ops member in structures 2016-04-20 06:59:10 +02:00
cputype.h ARM: 8634/1: hw_breakpoint: blacklist Scorpion CPUs 2017-01-10 23:32:26 +00:00
cti.h
dcc.h
delay.h ARM: 8619/1: udelay: document the various constants 2016-10-19 10:52:36 +01:00
device.h treewide: Move dma_ops from struct dev_archdata into struct device 2017-01-24 12:23:35 -05:00
div64.h ARM: 8504/1: __arch_xprod_64(): small optimization 2016-02-11 15:33:37 +00:00
dma-contiguous.h
dma-iommu.h ARM: 8347/1: dma-mapping: fix off-by-one check in arm_setup_iommu_dma_ops 2015-05-03 23:21:55 +01:00
dma-mapping.h treewide: Consolidate get_dma_ops() implementations 2017-01-24 12:23:35 -05:00
dma.h remove <asm/scatterlist.h> 2015-05-05 13:35:39 -06:00
domain.h ARM: 8573/1: domain: move {set,get}_domain under config guard 2016-05-05 19:03:02 +01:00
ecard.h
edac.h EDAC: Cleanup atomic_scrub mess 2015-05-28 15:31:53 +02:00
efi.h arm/efi: Allow invocation of arbitrary runtime services 2017-02-07 10:42:09 +01:00
elf.h Merge branch 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm 2015-04-14 21:03:26 -07:00
entry-macro-multi.S ARM: replace BSYM() with badr assembly macro 2015-05-08 17:33:50 +01:00
exception.h arch, ftrace: for KASAN put hard/soft IRQ entries into separate sections 2016-03-25 16:37:42 -07:00
fb.h
fiq.h
firmware.h ARM: EXYNOS: add exynos_get_boot_addr() helper 2015-06-06 02:17:56 +09:00
fixmap.h ARM: add support for generic early_ioremap/early_memremap 2015-12-13 19:18:28 +01:00
flat.h ARM: 8594/1: enable binfmt_flat on systems with an MMU 2016-08-12 16:47:05 +01:00
floppy.h ARM: 8584/1: floppy: avoid gcc-6 warning 2016-07-02 11:02:13 +01:00
fncpy.h
fpstate.h
ftrace.h ARM: 8632/1: ftrace: fix syscall name matching 2017-01-10 23:32:25 +00:00
futex.h ARM: uaccess: provide uaccess_save_and_enable() and uaccess_restore() 2015-08-25 16:14:43 +01:00
glue-cache.h ARM: 8607/1: V7M: Wire up caches for V7M processors with cache support. 2016-09-06 15:51:08 +01:00
glue-df.h
glue-pf.h
glue-proc.h
glue.h
gpio.h
hardirq.h ARM: 8487/1: Remove IPI_CALL_FUNC_SINGLE 2015-12-22 12:09:43 +00:00
highmem.h kmap_atomic_to_page() has no users, remove it 2015-11-09 15:11:24 -08:00
hugetlb-3level.h
hugetlb.h mm/hugetlb: remove arch_prepare/release_hugepage from arch headers 2015-06-25 17:00:35 -07:00
hw_breakpoint.h ARM: 8598/1: remove traces of perf_ops_bp 2016-08-23 10:09:23 +01:00
hw_irq.h ARM: Remove ununsed set_irq_flags 2015-09-16 16:53:39 +02:00
hwcap.h
hypervisor.h
ide.h
idmap.h
insn.h ARM: kprobes: enable OPTPROBES for ARM 32 2015-01-13 16:10:17 +00:00
io.h arm, arm64: don't include blk_types.h in <asm/io.h> 2016-11-01 09:43:26 -06:00
irq_work.h arm: Tell irq work about self IPI support 2014-09-13 18:38:39 +02:00
irq.h nmi_backtrace: add more trigger_*_cpu_backtrace() methods 2016-10-07 18:46:30 -07:00
irqflags.h ARM: 8422/1: enable imprecise aborts during early kernel startup 2015-09-22 08:13:56 +01:00
jump_label.h locking/static_keys: Add a new static_key interface 2015-08-03 11:34:15 +02:00
Kbuild sched/cputime: Remove generic asm headers 2017-02-01 09:14:07 +01:00
kexec.h ARM: kexec: fix kexec for Keystone 2 2016-08-02 19:35:29 -04:00
kgdb.h
kmap_types.h
kprobes.h kprobes: move kprobe declarations to asm-generic/kprobes.h 2017-02-27 18:43:45 -08:00
kvm_arm.h arm: KVM: Survive unknown traps from guests 2017-03-07 14:50:45 +00:00
kvm_asm.h KVM: arm/arm64: vgic: Defer touching GICH_VMCR to vcpu_load/put 2017-04-09 07:45:22 -07:00
kvm_coproc.h
kvm_emulate.h arm: KVM: Add Virtual Abort injection helper 2016-09-08 12:53:00 +02:00
kvm_host.h KVM: arm/arm64: Remove KVM_PRIVATE_MEM_SLOTS definition that are unused 2017-03-09 09:13:45 +00:00
kvm_hyp.h arm/arm64: KVM: Perform local TLB invalidation when multiplexing vcpus on a single CPU 2016-11-04 17:56:28 +00:00
kvm_mmio.h KVM: arm/arm64: Export mmio_read/write_bus 2016-05-20 15:39:42 +02:00
kvm_mmu.h arm/arm64: KVM: Stop propagating cacheability status of a faulted page 2017-01-30 13:47:38 +00:00
kvm_psci.h
limits.h
linkage.h
mc146818rtc.h
mcpm.h ARM: MCPM: remove residency argument from mcpm_cpu_suspend() 2015-05-06 11:47:10 -04:00
mcs_spinlock.h
memblock.h
memory.h ARM: 8648/2: nommu: display vectors base 2017-02-28 11:06:14 +00:00
mmu_context.h sched/headers: Prepare to remove the <linux/mm_types.h> dependency from <linux/sched.h> 2017-03-02 08:42:37 +01:00
mmu.h ARM: 8329/1: miscellaneous vdso infrastructure, preparation 2015-03-27 22:20:45 +00:00
module.h ARM: kernel: merge core and init PLTs 2016-08-30 17:45:34 +01:00
mpu.h
mtd-xip.h
neon.h
nwflash.h
opcodes-sec.h
opcodes-virt.h
opcodes.h
outercache.h ARM: move heavy barrier support out of line 2015-07-25 15:28:05 +01:00
page-nommu.h asm-generic: page.h: Remove useless get_user_page and free_user_page 2016-02-26 15:24:55 +01:00
page.h
paravirt.h arm: introduce CONFIG_PARAVIRT, PARAVIRT_TIME_ACCOUNTING and pv_time_ops 2015-12-21 14:40:54 +00:00
patch.h ARM: probes: move all probe code to dedicate directory 2015-01-09 09:36:50 +00:00
pci.h PCI: Move pci_dma_* helpers to common code 2016-03-07 10:40:02 -06:00
percpu.h ARM: 8174/1: Use global stack register variable for percpu 2014-11-13 23:58:06 +00:00
perf_event.h arm: perf: Fix callchain parse error with kernel tracepoint events 2015-05-27 16:12:05 +01:00
pgalloc.h arm: get rid of superfluous __GFP_REPEAT 2016-07-26 16:19:19 -07:00
pgtable-2level-hwdef.h ARM: 8612/1: LPAE: initialize cache policy correctly 2016-09-12 12:12:30 +01:00
pgtable-2level-types.h
pgtable-2level.h ARM: 8578/1: mm: ensure pmd_present only checks the valid bit 2016-06-09 17:51:47 +01:00
pgtable-3level-hwdef.h ARM: 8612/1: LPAE: initialize cache policy correctly 2016-09-12 12:12:30 +01:00
pgtable-3level-types.h
pgtable-3level.h ARM: 8579/1: mm: Fix definition of pmd_mknotpresent 2016-06-09 17:51:47 +01:00
pgtable-hwdef.h
pgtable-nommu.h ARM: 8655/1: improve NOMMU definition of pgprot_*() 2017-02-28 11:06:19 +00:00
pgtable.h arch, mm: convert all architectures to use 5level-fixup.h 2017-03-09 11:48:47 -08:00
probes.h ARM: optprobes: execute instruction during restoring if possible. 2015-01-14 12:24:52 +00:00
proc-fns.h ARM: soft-reboot into same mode that we entered the kernel 2017-04-09 07:49:24 -07:00
processor.h locking/core: Provide common cpu_relax_yield() definition 2016-11-17 08:17:36 +01:00
procinfo.h
prom.h
psci.h ARM: SoC cleanups for v4.5 2016-01-20 17:55:20 -08:00
ptrace.h ARM: save and reset the address limit when entering an exception 2016-07-07 16:01:01 +01:00
sections.h ARM: 8518/1: Use correct symbols for XIP_KERNEL 2016-02-11 15:43:14 +00:00
setup.h ARM: 8495/1: ATAGS: move save_atags() to arch/arm/include/asm/setup.h 2016-01-04 11:26:00 +00:00
shmparam.h
signal.h
smp_plat.h ARM: 8392/3: smp: Only expose /sys/.../cpuX/online if hotpluggable 2015-07-31 18:58:30 +01:00
smp_scu.h
smp_twd.h
smp.h ARM: 8423/1: add const qualifier to smp_operations member in structures 2015-09-22 08:13:57 +01:00
sparsemem.h ARM: 8411/1: Add default SPARSEMEM settings 2016-02-16 16:35:21 +00:00
spinlock_types.h
spinlock.h locking/spinlock, arch: Update and fix spin_unlock_wait() implementations 2016-06-14 11:55:15 +02:00
stackprotector.h
stacktrace.h
stage2_pgtable.h kvm-arm: arm32: Introduce stage2 page table helpers 2016-04-21 14:57:26 +02:00
string.h
suspend.h ARM: 8389/1: Add cpu_resume_arm() for firmwares that resume in ARM state 2015-06-12 21:17:17 +01:00
swab.h
switch_to.h sched, arm: Remove finish_arch_switch() 2015-08-04 09:37:52 +02:00
sync_bitops.h
syscall.h ARM: 8152/1: Convert pr_warning to pr_warn 2014-09-26 14:39:53 +01:00
system_info.h ARM: 8355/1: arch: Show the serial number from devicetree in cpuinfo 2015-05-08 10:42:35 +01:00
system_misc.h
tcm.h
therm.h
thread_info.h Merge branch 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm 2015-09-14 12:24:10 -07:00
thread_notify.h
timex.h
tlb.h mm: remove the page size change check in tlb_remove_page 2016-12-12 18:55:07 -08:00
tlbflush.h sched/headers: Prepare to remove the <linux/mm_types.h> dependency from <linux/sched.h> 2017-03-02 08:42:37 +01:00
tls.h ARM: 8178/1: fix set_tls for !CONFIG_KUSER_HELPERS 2014-09-30 16:55:23 +01:00
topology.h sched/topology: Rename topology_thread_cpumask() to topology_sibling_cpumask() 2015-05-27 15:22:15 +02:00
traps.h
trusted_foundations.h treewide: remove redundant #include <linux/kconfig.h> 2016-10-11 15:06:33 -07:00
uaccess.h ARM: 8657/1: uaccess: consistently check object sizes 2017-02-16 15:58:31 +00:00
ucontext.h
unified.h ARM: replace BSYM() with badr assembly macro 2015-05-08 17:33:50 +01:00
unistd.h ARM: wire up new pkey syscalls 2016-10-19 10:18:47 +01:00
unwind.h
uprobes.h
user.h
v7m.h ARM: 8603/1: V7M: Add addresses for mem-mapped V7M cache operations 2016-09-06 15:51:06 +01:00
vdso_datapage.h ARM: 8329/1: miscellaneous vdso infrastructure, preparation 2015-03-27 22:20:45 +00:00
vdso.h ARM: 8329/1: miscellaneous vdso infrastructure, preparation 2015-03-27 22:20:45 +00:00
vfp.h ARM: vfp: Add vfp_disable for problematic platforms 2015-05-20 15:07:00 -07:00
vfpmacros.h
vga.h
virt.h KVM: arm64: Access CNTHCTL_EL2 bit fields correctly on VHE systems 2017-01-13 11:19:25 +00:00
word-at-a-time.h ARM: 8322/1: keep .text and .fixup regions closer together 2015-03-29 23:11:56 +01:00
xor.h