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c4b000c392
linux/arch/arm64/include/asm
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Andrew Scull c4b000c392 KVM: arm64: Fix nVHE hyp panic host context restore 
When panicking from the nVHE hyp and restoring the host context, x29 is
expected to hold a pointer to the host context. This wasn't being done
so fix it to make sure there's a valid pointer the host context being
used.

Rather than passing a boolean indicating whether or not the host context
should be restored, instead pass the pointer to the host context. NULL
is passed to indicate that no context should be restored.

Fixes: a2e102e20f ("KVM: arm64: nVHE: Handle hyp panics")
Cc: stable@vger.kernel.org
Signed-off-by: Andrew Scull <ascull@google.com>
[maz: partial rewrite to fit 5.12-rc1]
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20210219122406.1337626-1-ascull@google.com
Message-Id: <20210305185254.3730990-4-maz@kernel.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-03-06 04:18:40 -05:00
..
vdso vdso/treewide: Add vdso_data pointer argument to __arch_get_hw_counter() 2020-08-06 10:57:30 +02:00
xen xen/arm: do not setup the runstate info page if kpti is enabled 2020-10-04 18:41:33 -05:00
acenv.h
acpi.h arm64/acpi: disallow AML memory opregions to access kernel memory 2020-07-14 18:02:03 +01:00
alternative-macros.h arm64: alternatives: Split up alternative.h 2020-11-09 21:49:34 +00:00
alternative.h arm64: alternatives: Split up alternative.h 2020-11-09 21:49:34 +00:00
arch_gicv3.h irqchip/gic-v3: Support pseudo-NMIs when SCR_EL3.FIQ == 0 2020-09-13 17:52:04 +01:00
arch_timer.h arm64: arch_timer: Allow an workaround descriptor to disable compat vdso 2020-07-08 21:57:51 +01:00
archrandom.h arm64: random: Remove no longer needed prototypes 2020-10-07 14:17:20 +01:00
arm_dsu_pmu.h
arm-cci.h
asm_pointer_auth.h
asm-bug.h
asm-offsets.h
asm-prototypes.h
asm-uaccess.h Merge branch 'for-next/misc' into for-next/core 2020-12-09 18:04:48 +00:00
assembler.h kasan, arm64: expand CONFIG_KASAN checks 2020-12-22 12:55:08 -08:00
atomic_ll_sc.h
atomic_lse.h
atomic.h arm64: make atomic helpers __always_inline 2021-01-13 15:09:06 +00:00
barrier.h iommu/arm-smmu-v3: Ensure queue is read after updating prod pointer 2020-09-28 22:57:43 +01:00
bitops.h
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 arm64: kasan: align allocations for HW_TAGS 2020-12-22 12:55:08 -08:00
cacheflush.h arch, mm: make kernel_page_present() always available 2020-12-15 12:13:43 -08:00
checksum.h arm64: csum: Fix handling of bad packets 2020-07-30 17:01:38 +01:00
clocksource.h
cmpxchg.h
compat.h compat: lift compat_s64 and compat_u64 to <asm-generic/compat.h> 2020-09-17 13:00:46 -04:00
compiler.h arm64: use a common .arch preamble for inline assembly 2020-08-28 11:15:15 +01:00
cpu_ops.h arm64: fix some spelling mistakes in the comments by codespell 2020-09-07 14:18:50 +01:00
cpu.h Revert "arm64: initialize per-cpu offsets earlier" 2020-10-09 11:24:17 +01:00
cpucaps.h Merge remote-tracking branch 'origin/kvm-arm64/psci-relay' into kvmarm-master/next 2020-12-09 10:00:24 +00:00
cpufeature.h ARM: 2020-12-20 10:44:05 -08:00
cpuidle.h
cputype.h arm64: Add MIDR value for KRYO2XX gold/silver CPU cores 2020-11-13 09:47:08 +00:00
current.h
daifflags.h arm64: entry: fix non-NMI kernel<->kernel transitions 2020-11-30 12:11:38 +00:00
dcc.h
debug-monitors.h arm64: kprobes: Use BRK instead of single-step when executing instructions out-of-line 2020-11-03 14:03:38 +00:00
device.h arm64: Remove dev->archdata.iommu pointer 2020-06-30 11:59:49 +02:00
dmi.h
efi.h efi: stub: get rid of efi_get_max_fdt_addr() 2020-12-09 08:37:27 +01:00
el2_setup.h arm64: Extract parts of el2_setup into a macro 2020-12-04 10:07:12 +00:00
elf.h Split the old READ_IMPLIES_EXEC workaround from executable PT_GNU_STACK 2020-06-05 13:45:21 -07:00
esr.h arm64: mte: add in-kernel MTE helpers 2020-12-22 12:55:07 -08:00
exception.h arm64: entry: suppress W=1 prototype warnings 2020-12-15 12:38:02 +00:00
exec.h arm64: uaccess: remove set_fs() 2020-12-02 19:49:11 +00:00
extable.h arm64: Improve diagnostics when trapping BRK with FAULT_BRK_IMM 2020-09-18 16:35:54 +01:00
fb.h
fixmap.h arm64/fixmap: make notes of fixed_addresses more precisely 2020-08-08 19:25:04 +01:00
fpsimd.h arm64/sve: Implement a helper to load SVE registers from FPSIMD state 2020-09-21 18:06:33 +01:00
fpsimdmacros.h arm64/sve: Implement a helper to flush SVE registers 2020-09-21 18:06:33 +01:00
ftrace.h
futex.h arm64: uaccess: rename privileged uaccess routines 2020-12-02 19:49:10 +00:00
hardirq.h arm64: irqstat: Get rid of duplicated declaration 2020-11-23 10:31:05 +01:00
hugetlb.h arm64/hugetlb: Reserve CMA areas for gigantic pages on 16K and 64K configs 2020-07-15 13:38:03 +01:00
hw_breakpoint.h
hwcap.h Merge branch 'for-next/mte' into for-next/core 2020-10-02 12:16:11 +01:00
hyp_image.h KVM: arm64: Add symbol at the beginning of each hyp section 2021-01-23 14:00:57 +00:00
hypervisor.h
image.h
insn.h arm64: alternatives: Split up alternative.h 2020-11-09 21:49:34 +00:00
io.h Add and use a generic version of devmem_is_allowed() 2020-12-11 12:30:26 -08:00
irq_work.h arm64: Kill __smp_cross_call and co 2020-09-17 16:37:28 +01:00
irq.h
irqflags.h arm64: Implement arch_irqs_disabled() 2020-08-26 12:41:55 +02:00
jump_label.h
kasan.h kasan, arm64: move initialization message 2020-12-22 12:55:07 -08:00
Kbuild local64.h: make <asm/local64.h> mandatory 2020-12-29 15:36:49 -08:00
kernel-pgtable.h arm64: consistently use reserved_pg_dir 2020-11-10 17:30:40 +00:00
kexec.h
kgdb.h
kprobes.h arm64: kprobes: Remove redundant kprobe_step_ctx 2020-11-10 17:12:30 +00:00
kvm_arm.h KVM: arm64: Trap host SMCs in protected mode 2020-12-04 10:08:36 +00:00
kvm_asm.h KVM: arm64: Remove hyp_symbol_addr 2021-01-23 14:01:00 +00:00
kvm_emulate.h Merge branch 'kvm-master' into kvm-next 2021-01-07 18:06:52 -05:00
kvm_host.h KVM/arm64 updates for Linux 5.12 2021-02-12 11:23:44 -05:00
kvm_hyp.h KVM: arm64: Fix nVHE hyp panic host context restore 2021-03-06 04:18:40 -05:00
kvm_mmu.h KVM: arm64: Remove patching of fn pointers in hyp 2021-01-23 14:01:00 +00:00
kvm_pgtable.h KVM: arm64: Filter out the case of only changing permissions from stage-2 map path 2021-01-25 16:30:20 +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_types.h KVM: arm64: Use common KVM implementation of MMU memory caches 2020-07-09 13:29:43 -04:00
linkage.h arm64: Don't insert a BTI instruction at inner labels 2020-06-24 14:24:29 +01:00
lse.h
memory.h kasan, arm64: implement HW_TAGS runtime 2020-12-22 12:55:08 -08:00
mman.h arm64: mte: Validate the PROT_MTE request via arch_validate_flags() 2020-09-04 12:46:07 +01:00
mmu_context.h asm-generic: mmu-context cleanup 2020-12-15 23:58:04 -08:00
mmu.h KVM: arm64: Move BP hardening helpers into spectre.h 2020-11-16 10:40:18 +00:00
mmzone.h
module.h
module.lds.h kbuild: preprocess module linker script 2020-09-25 00:36:41 +09:00
mte-def.h arm64: mte: switch GCR_EL1 in kernel entry and exit 2020-12-22 12:55:07 -08:00
mte-kasan.h arm64: mte: switch GCR_EL1 in kernel entry and exit 2020-12-22 12:55:07 -08:00
mte.h arm64: mte: switch GCR_EL1 in kernel entry and exit 2020-12-22 12:55:07 -08:00
neon-intrinsics.h
neon.h
numa.h arm64/mm: return cpu_all_mask when node is NUMA_NO_NODE 2020-09-21 22:05:01 +01:00
page-def.h arm64/mm: Unify CONT_PTE_SHIFT 2020-09-11 16:33:43 +01:00
page.h arm64: mte: Add PROT_MTE support to mmap() and mprotect() 2020-09-04 12:46:07 +01:00
paravirt.h
pci.h arm64: Enable PCI write-combine resources under sysfs 2020-09-18 14:05:13 +01:00
percpu.h KVM: arm64: Support per_cpu_ptr in nVHE hyp code 2020-12-04 10:08:34 +00:00
perf_event.h arm64: perf: Add support caps under sysfs 2020-09-28 14:53:45 +01:00
pgalloc.h asm-generic: pgalloc: provide generic pgd_free() 2020-08-07 11:33:26 -07:00
pgtable-hwdef.h kasan: arm64: set TCR_EL1.TBID1 when enabled 2020-11-25 16:53:19 +00:00
pgtable-prot.h ARM: 2020-10-23 11:17:56 -07:00
pgtable-types.h arm64: add support for folded p4d page tables 2020-06-04 19:06:21 -07:00
pgtable.h Merge branch 'akpm' (patches from Andrew) 2020-12-15 12:53:37 -08:00
pointer_auth.h
preempt.h
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 arm64: Remove arm64_dma32_phys_limit and its uses 2021-01-12 17:49:25 +00:00
ptdump.h
ptrace.h Merge branch 'kvm-master' into kvm-next 2021-01-07 18:06:52 -05:00
pvclock-abi.h
rwonce.h arm64: lto: Strengthen READ_ONCE() to acquire when CONFIG_LTO=y 2020-11-09 21:49:34 +00:00
scs.h scs: Move scs_overflow_check() out of architecture code 2020-05-18 17:47:40 +01:00
sdei.h
seccomp.h arm64: Enable seccomp architecture tracking 2020-11-20 11:16:34 -08:00
sections.h KVM: arm64: Apply hyp relocations at runtime 2021-01-23 14:01:00 +00:00
shmparam.h
signal32.h
signal.h arm64: expose FAR_EL1 tag bits in siginfo 2020-11-23 18:17:39 +00:00
simd.h
smp_plat.h
smp.h arm64: Make cpu_logical_map() take unsigned int 2020-12-04 08:44:24 +00:00
sparsemem.h
spectre.h Merge remote-tracking branch 'origin/kvm-arm64/csv3' into kvmarm-master/queue 2020-12-03 19:12:24 +00:00
spinlock_types.h
spinlock.h locking/arch: Move qrwlock.h include after qspinlock.h 2021-02-11 07:59:54 -05:00
stack_pointer.h
stackprotector.h
stacktrace.h arm64: stacktrace: Make stack walk callback consistent with generic code 2020-09-18 14:24:16 +01:00
stage2_pgtable.h KVM: arm64: Remove unused page-table code 2020-09-11 15:51:15 +01:00
stat.h
string.h kasan, arm64: expand CONFIG_KASAN checks 2020-12-22 12:55:08 -08:00
suspend.h
sync_bitops.h
syscall_wrapper.h
syscall.h arm64: compat: Ensure upper 32 bits of x0 are zero on syscall return 2020-07-16 11:41:31 +01:00
sysreg.h KVM: arm64: Upgrade PMU support to ARMv8.4 2021-02-03 11:00:22 +00:00
system_misc.h arm64: expose FAR_EL1 tag bits in siginfo 2020-11-23 18:17:39 +00:00
thread_info.h arm64: make _TIF_WORK_MASK bits contiguous 2020-12-16 14:08:47 -08:00
timex.h
tlb.h arm64: tlb: Set the TTL field in flush_tlb_range 2020-07-07 11:23:47 +01:00
tlbflush.h arm64: use a common .arch preamble for inline assembly 2020-08-28 11:15:15 +01:00
topology.h arm64: wrap and generalise counter read functions 2020-11-13 20:05:10 +00:00
traps.h arm64: expose FAR_EL1 tag bits in siginfo 2020-11-23 18:17:39 +00:00
uaccess.h arm64: Move PSTATE.TCO setting to separate functions 2021-01-07 11:39:01 +00:00
unistd32.h epoll: fix compat syscall wire up of epoll_pwait2 2020-12-20 10:01:38 -08:00
unistd.h epoll: wire up syscall epoll_pwait2 2020-12-19 11:18:38 -08:00
uprobes.h
vdso.h arm64/vdso: Add time namespace page 2020-07-24 13:15:20 +01:00
vermagic.h
virt.h KVM: arm64: Fix EL2 mode availability checks 2020-12-04 10:08:36 +00:00
vmalloc.h
vmap_stack.h mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00
word-at-a-time.h
xor.h