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6928bcc84b
linux/arch/arm64/include/asm
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Kalesh Singh 6928bcc84b KVM: arm64: Allocate shared pKVM hyp stacktrace buffers 
In protected nVHE mode the host cannot directly access
hypervisor memory, so we will dump the hypervisor stacktrace
to a shared buffer with the host.

The minimum size for the buffer required, assuming the min frame
size of [x29, x30] (2 * sizeof(long)), is half the combined size of
the hypervisor and overflow stacks plus an additional entry to
delimit the end of the stacktrace.

The stacktrace buffers are used later in the series to dump the
nVHE hypervisor stacktrace when using protected-mode.

Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Reviewed-by: Fuad Tabba <tabba@google.com>
Tested-by: Fuad Tabba <tabba@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20220726073750.3219117-14-kaleshsingh@google.com
2022-07-26 10:50:12 +01:00
..
stacktrace KVM: arm64: Introduce hyp_dump_backtrace() 2022-07-26 10:49:50 +01:00
vdso arm64: vdso32: drop test for -march=armv8-a 2021-10-21 10:31:38 +01:00
xen arm/xen: Introduce xen_setup_dma_ops() 2022-06-06 08:54:33 +02:00
acenv.h
acpi.h Revert "ACPI: Add memory semantics to acpi_os_map_memory()" 2021-09-23 20:39:36 +02:00
alternative-macros.h Merge branch 'for-next/insn' into for-next/core 2021-06-24 14:03:24 +01:00
alternative.h arm64: alternatives: Split up alternative.h 2020-11-09 21:49:34 +00:00
apple_m1_pmu.h drivers/perf: Add Apple icestorm/firestorm CPU PMU driver 2022-03-08 13:32:48 +00:00
arch_gicv3.h irqchip/gic-v3: Refactor ISB + EOIR at ack time 2022-05-15 16:38:25 +01:00
arch_timer.h arm64: Add CNT{P,V}CTSS_EL0 alternatives to cnt{p,v}ct_el0 2021-10-19 10:56:20 +01:00
archrandom.h arm64/sysreg: Standardise ID_AA64ISAR0_EL1 macro names 2022-05-04 15:30:28 +01:00
arm_dsu_pmu.h
arm-cci.h
asm_pointer_auth.h arm64: Add support of PAuth QARMA3 architected algorithm 2022-02-25 13:38:52 +00:00
asm-bug.h bug: Use normal relative pointers in 'struct bug_entry' 2022-05-19 23:46:10 +02:00
asm-extable.h arm64: extable: add load_unaligned_zeropad() handler 2021-10-21 10:45:22 +01:00
asm-offsets.h
asm-prototypes.h kasan: arm64: support specialized outlined tag mismatch checks 2021-05-26 23:31:26 +01:00
asm-uaccess.h arm64: extable: consolidate definitions 2021-10-21 10:45:22 +01:00
assembler.h Merge branch 'for-next/spectre-bhb' into for-next/core 2022-03-14 19:08:31 +00:00
atomic_ll_sc.h arm64: atomics: format whitespace consistently 2021-12-14 13:00:23 +00:00
atomic_lse.h arm64: atomics: lse: Dereference matching size 2022-01-20 09:13:48 +00:00
atomic.h locking/atomic: make ARCH_ATOMIC a Kconfig symbol 2021-05-26 13:20:49 +02:00
barrier.h arm64: Add wfet()/wfit() helpers 2022-04-20 13:24:44 +01:00
bitops.h include: move find.h from asm_generic to linux 2022-01-15 08:47:31 -08:00
bitrev.h
boot.h arm64: get rid of TEXT_OFFSET 2020-09-07 15:00:52 +01:00
brk-imm.h arm64: kprobes: Use BRK instead of single-step when executing instructions out-of-line 2020-11-03 14:03:38 +00:00
bug.h
cache.h mm: make minimum slab alignment a runtime property 2022-05-13 07:20:07 -07:00
cacheflush.h set_memory: allow querying whether set_direct_map_*() is actually enabled 2021-07-08 11:48:20 -07:00
checksum.h arm64: csum: cast to the proper type 2021-03-15 10:57:21 +00:00
clocksource.h
cmpxchg.h arm64: atomics: lse: Dereference matching size 2022-01-20 09:13:48 +00:00
compat.h asm-generic: compat: Cleanup duplicate definitions 2022-04-26 13:35:54 -07:00
compiler.h cfi: Use __builtin_function_start 2022-04-13 12:16:00 -07:00
cpu_ops.h arm64: fix some spelling mistakes in the comments by codespell 2020-09-07 14:18:50 +01:00
cpu.h arm64/sme: Identify supported SME vector lengths at boot 2022-04-22 18:50:51 +01:00
cpufeature.h arm64/sme: Implement support for TPIDR2 2022-04-22 18:50:56 +01:00
cpuidle.h arm64: Add cpuidle context save/restore helpers 2021-06-17 18:00:39 +01:00
cputype.h S390: 2022-05-26 14:20:14 -07:00
current.h
daifflags.h arm64: entry: always set GIC_PRIO_PSR_I_SET during entry 2021-05-05 18:13:58 +01:00
dcc.h
debug-monitors.h arm64: Treat ESR_ELx as a 64-bit register 2022-04-29 19:26:27 +01:00
device.h arm64: Remove dev->archdata.iommu pointer 2020-06-30 11:59:49 +02:00
dmi.h
efi.h efi: Move efifb_setup_from_dmi() prototype from arch headers 2021-12-13 15:07:16 +01:00
el2_setup.h arm64/sme: Drop SYS_ from SMIDR_EL1 defines 2022-05-16 19:50:20 +01:00
elf.h arm64: exec: Adjust affinity for compat tasks with mismatched 32-bit EL0 2021-08-20 12:33:06 +02:00
esr.h S390: 2022-05-26 14:20:14 -07:00
exception.h Merge branch 'for-next/esr-elx-64-bit' into for-next/core 2022-05-20 18:51:54 +01:00
exec.h arm64: uaccess: remove set_fs() 2020-12-02 19:49:11 +00:00
extable.h arm64/bpf: Remove 128MB limit for BPF JIT programs 2021-11-08 22:16:26 +01:00
fb.h
fixmap.h arm64: entry: Allow the trampoline text to occupy multiple pages 2022-02-15 17:40:28 +00:00
fpsimd.h arm64/sme: Remove _EL0 from name of SVCR - FIXME sysreg.h 2022-05-16 19:50:20 +01:00
fpsimdmacros.h arm64/sme: Implement ZA context switching 2022-04-22 18:51:02 +01:00
ftrace.h arm64/ftrace: Make function graph use ftrace directly 2022-04-29 19:21:12 +01:00
futex.h arm64: extable: add a dedicated uaccess handler 2021-10-21 10:45:22 +01:00
gpr-num.h arm64: gpr-num: support W registers 2021-10-21 10:45:22 +01:00
hardirq.h arm64: irqstat: Get rid of duplicated declaration 2020-11-23 10:31:05 +01:00
hugetlb.h Yang Shi has improved the behaviour of khugepaged collapsing of readonly 2022-05-26 12:32:41 -07:00
hw_breakpoint.h
hwcap.h Merge branch kvm-arm64/wfxt into kvmarm-master/next 2022-05-04 09:42:16 +01:00
hyp_image.h KVM: arm64: Allow using kvm_nvhe_sym() in hyp code 2021-03-19 12:01:20 +00:00
hyperv-tlfs.h PCI: hv: Add arm64 Hyper-V vPCI support 2022-01-12 08:24:29 -06:00
hypervisor.h arm/arm64: Probe for the presence of KVM hypervisor 2021-03-31 09:16:55 +01:00
image.h
insn-def.h arm64: move AARCH64_BREAK_FAULT into insn-def.h 2022-02-22 21:25:48 +00:00
insn.h arm64, insn: Add ldr/str with immediate offset 2022-04-01 00:27:29 +02:00
io.h arm[64]/memremap: don't abuse pfn_valid() to ensure presence of linear map 2022-05-09 17:34:28 -07:00
irq_work.h arm64: smp: Add missing prototype for some smp.c functions 2021-03-29 10:41:42 +01:00
irq.h arm64: irq: allow FIQs to be handled 2021-03-24 20:19:30 +00:00
irqflags.h arm64: Always keep DAIF.[IF] in sync 2021-03-24 20:19:30 +00:00
jump_label.h
kasan.h arm64: kasan: simplify and inline MTE functions 2021-02-26 09:41:03 -08:00
Kbuild arm64/sysreg: Enable automatic generation of system register definitions 2022-05-04 15:30:28 +01:00
kernel-pgtable.h arm64: head: avoid over-mapping in map_memory 2021-08-24 16:44:23 +01:00
kexec.h arm64: kexec: remove cpu-reset.h 2021-10-01 13:31:00 +01:00
kfence.h set_memory: allow querying whether set_direct_map_*() is actually enabled 2021-07-08 11:48:20 -07:00
kgdb.h
kprobes.h kprobes: treewide: Make it harder to refer kretprobe_trampoline directly 2021-09-30 21:24:06 -04:00
kvm_arm.h Merge branch kvm-arm64/aarch32-idreg-trap into kvmarm-master/next 2022-05-04 09:42:45 +01:00
kvm_asm.h KVM: arm64: Prepare non-protected nVHE hypervisor stacktrace 2022-07-26 10:49:27 +01:00
kvm_emulate.h S390: 2022-05-26 14:20:14 -07:00
kvm_host.h KVM: arm64: Drop stale comment 2022-06-09 13:24:02 +01:00
kvm_hyp.h arm64: Add support of PAuth QARMA3 architected algorithm 2022-02-25 13:38:52 +00:00
kvm_mmu.h KVM: arm64: Add guard pages for KVM nVHE hypervisor stack 2022-04-28 20:53:13 +01:00
kvm_mte.h KVM: arm64: Save/restore MTE registers 2021-06-22 14:08:05 +01:00
kvm_pgtable.h Merge branch kvm-arm64/misc-5.17 into kvmarm-master/next 2022-01-04 17:16:15 +00:00
kvm_pkvm.h KVM: arm64: Move host EL1 code out of hyp/ directory 2021-12-06 08:37:03 +00:00
kvm_ptrauth.h KVM: arm64: Update context references from host to hyp 2020-09-15 18:39:02 +01:00
kvm_ras.h KVM: arm64: Treat ESR_EL2 as a 64-bit register 2022-04-29 19:26:27 +01:00
kvm_types.h KVM: arm64: Use common KVM implementation of MMU memory caches 2020-07-09 13:29:43 -04:00
linkage.h arm64: clean up symbol aliasing 2022-02-22 16:21:34 +00:00
lse.h arm64: atomics: remove redundant static branch 2022-02-15 17:54:08 +00:00
memory.h KVM: arm64: Allocate shared pKVM hyp stacktrace buffers 2022-07-26 10:50:12 +01:00
mman.h arm64/mm: enable ARCH_HAS_VM_GET_PAGE_PROT 2022-04-28 23:16:13 -07:00
mmu_context.h arm64: hibernate: abstract ttrb0 setup function 2021-10-01 13:30:59 +01:00
mmu.h arm64: Add missing include of asm/cpufeature.h to asm/mmu.h 2021-12-06 08:37:03 +00:00
mmzone.h
module.h
module.lds.h arm64: module: remove (NOLOAD) from linker script 2022-02-25 14:06:50 +00:00
mshyperv.h arm64: hyperv: Add Hyper-V hypercall and register access utilities 2021-08-04 16:54:36 +00:00
mte-def.h arm64: mte: Define the number of bytes for storing the tags in a page 2022-02-15 22:53:29 +00:00
mte-kasan.h printk: stop including cache.h from printk.h 2022-05-13 07:20:07 -07:00
mte.h arm64: Add support for user sub-page fault probing 2022-04-25 10:25:43 +01:00
neon-intrinsics.h
neon.h
numa.h numa: Move numa implementation to common code 2021-01-14 15:08:55 -08:00
page-def.h arm64/mm: Unify CONT_PTE_SHIFT 2020-09-11 16:33:43 +01:00
page.h arm64/mm: drop HAVE_ARCH_PFN_VALID 2021-10-01 14:54:45 +01:00
paravirt_api_clock.h sched/headers: Add initial new headers as identity mappings 2022-02-23 10:58:28 +01:00
paravirt.h x86/paravirt: Switch time pvops functions to use static_call() 2021-03-11 16:17:52 +01:00
patching.h arm64: insn: decouple patching from insn code 2021-06-11 11:19:27 +01:00
pci.h arm64: Enable PCI write-combine resources under sysfs 2020-09-18 14:05:13 +01:00
percpu.h printk: stop including cache.h from printk.h 2022-05-13 07:20:07 -07:00
perf_event.h arm64: perf: Consistently make all event numbers as 16-bits 2022-03-08 11:41:03 +00:00
pgalloc.h arm64: mm: Fix VM_BUG_ON(mm != &init_mm) for trans_pgd 2021-11-16 10:12:57 +00:00
pgtable-hwdef.h arm64/mm: Compute PTRS_PER_[PMD|PUD] independently of PTRS_PER_PTE 2022-04-22 14:45:58 +01:00
pgtable-prot.h arm64/pgtable: support __HAVE_ARCH_PTE_SWP_EXCLUSIVE 2022-05-09 18:20:46 -07:00
pgtable-types.h arm64: add support for folded p4d page tables 2020-06-04 19:06:21 -07:00
pgtable.h Yang Shi has improved the behaviour of khugepaged collapsing of readonly 2022-05-26 12:32:41 -07:00
pointer_auth.h arm64: move preemption disablement to prctl handlers 2021-07-28 18:33:49 +01:00
preempt.h arm64: Support PREEMPT_DYNAMIC 2022-02-19 11:11:09 +01:00
probes.h arm64/fpsimd: add <asm/insn.h> to <asm/kprobes.h> to fix fpsimd build 2020-11-23 10:59:00 +00:00
proc-fns.h
processor.h powerpc updates for 5.19 2022-05-28 11:27:17 -07:00
ptdump.h arm64: Add __init section marker to some functions 2021-04-08 17:45:10 +01:00
ptrace.h arm64: fix compat syscall return truncation 2021-08-03 10:35:03 +01:00
pvclock-abi.h
rwonce.h arm64: Do not include __READ_ONCE() block in assembly files 2022-03-09 21:56:50 +00:00
scs.h arm64: scs: Drop unused 'tmp' argument to scs_{load, save} asm macros 2021-05-27 17:55:33 +01:00
sdei.h Merge branch 'for-next/entry' into for-next/core 2021-06-24 14:01:55 +01:00
seccomp.h arm64: Enable seccomp architecture tracking 2020-11-20 11:16:34 -08:00
sections.h arm64: entry: Allow the trampoline text to occupy multiple pages 2022-02-15 17:40:28 +00:00
set_memory.h set_memory: allow querying whether set_direct_map_*() is actually enabled 2021-07-08 11:48:20 -07:00
setup.h arm64: asm: setup.h: export common variables 2021-10-12 09:22:33 +01:00
shmparam.h
signal32.h
signal.h arm64: expose FAR_EL1 tag bits in siginfo 2020-11-23 18:17:39 +00:00
simd.h arm64: replace in_irq() with in_hardirq() 2021-08-20 19:49:38 +01:00
smp_plat.h arm64: Add missing header <asm/smp.h> in two files 2021-07-12 13:37:34 +01:00
smp.h arm64: smp: remove stack from secondary_data 2021-05-26 22:45:46 +01:00
sparsemem.h arm64: Force SPARSEMEM_VMEMMAP as the only memory management model 2021-04-23 14:18:21 +01:00
spectre.h Merge branch 'for-next/spectre-bhb' into for-next/core 2022-03-14 19:08:31 +00:00
spinlock_types.h locking: Allow to include asm/spinlock_types.h from linux/spinlock_types_raw.h 2021-12-07 15:14:12 +01:00
spinlock.h locking/arch: Move qrwlock.h include after qspinlock.h 2021-02-11 07:59:54 -05:00
stack_pointer.h
stackprotector.h arm64: Defer enabling pointer authentication on boot core 2021-02-09 13:50:57 +00:00
stacktrace.h arm64: stacktrace: Factor out common unwind() 2022-07-26 10:48:43 +01:00
stage2_pgtable.h KVM: arm64: Remove unused page-table code 2020-09-11 15:51:15 +01:00
stat.h
string.h Revert "arm64: Mitigate MTE issues with str{n}cmp()" 2022-03-07 21:57:02 +00:00
suspend.h
sync_bitops.h
syscall_wrapper.h
syscall.h arch: remove unused function syscall_set_arguments() 2021-09-14 16:06:20 +02:00
sysreg.h arm64/sme: Fix tests for 0b1111 value ID registers 2022-06-08 18:38:00 +01:00
system_misc.h arm64: Treat ESR_ELx as a 64-bit register 2022-04-29 19:26:27 +01:00
thread_info.h arm64/sme: Implement SVCR context switching 2022-04-22 18:50:58 +01:00
timex.h
tlb.h arm64: tlb: fix the TTL value of tlb_get_level 2021-06-23 14:52:57 +01:00
tlbflush.h arm64: mm: Fix TLBI vs ASID rollover 2021-08-06 13:52:03 +01:00
topology.h arm64, topology: enable use of init_cpu_capacity_cppc() 2022-03-10 20:21:58 +01:00
trans_pgd.h arm64: trans_pgd: remove trans_pgd_map_page() 2021-10-01 13:31:01 +01:00
traps.h arm64: Treat ESR_ELx as a 64-bit register 2022-04-29 19:26:27 +01:00
uaccess.h arm64: Add support for user sub-page fault probing 2022-04-25 10:25:43 +01:00
unistd32.h mm/mempolicy: wire up syscall set_mempolicy_home_node 2022-01-15 16:30:30 +02:00
unistd.h fs: stat: compat: Add __ARCH_WANT_COMPAT_STAT 2022-04-26 13:35:45 -07:00
uprobes.h
vdso.h arm64/vdso: Add time namespace page 2020-07-24 13:15:20 +01:00
vectors.h arm64: fix clang warning about TRAMP_VALIAS 2022-03-18 13:48:28 +00:00
vermagic.h
virt.h KVM: arm64: Extend comment in has_vhe() 2022-06-09 13:24:02 +01:00
vmalloc.h kasan, vmalloc, arm64: mark vmalloc mappings as pgprot_tagged 2022-03-24 19:06:47 -07:00
vmap_stack.h kasan, arm64: reset pointer tags of vmapped stacks 2022-03-24 19:06:47 -07:00
word-at-a-time.h arm64: extable: add load_unaligned_zeropad() handler 2021-10-21 10:45:22 +01:00
xor.h lib/xor: make xor prototypes more friendly to compiler vectorization 2022-02-11 20:39:39 +11:00