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92ceba94de6fb4cee2bf40b485979c342f44a492
linux/arch/riscv/include/asm
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Alexandre Ghiti 1ff95eb2be riscv: Fix RISCV_ALTERNATIVE_EARLY 
RISCV_ALTERNATIVE_EARLY will issue sbi_ecall() very early in the boot
process, before the first memory mapping is setup so we can't have any
instrumentation happening here.

In addition, when the kernel is relocatable, we must also not issue any
relocation this early since they would have been patched virtually only.

So, instead of disabling instrumentation for the whole kernel/sbi.c file
and compiling it with -fno-pie, simply move __sbi_ecall() and
__sbi_base_ecall() into their own file where this is fixed.

Reported-by: Conor Dooley <conor.dooley@microchip.com>
Closes: https://lore.kernel.org/linux-riscv/20240813-pony-truck-3e7a83e9759e@spud/
Reported-by: syzbot+cfbcb82adf6d7279fd35@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/linux-riscv/00000000000065062c061fcec37b@google.com/
Fixes: 1745cfafeb ("riscv: don't use global static vars to store alternative data")
Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Link: https://lore.kernel.org/r/20240829165048.49756-1-alexghiti@rivosinc.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2024-09-03 07:57:55 -07:00
..
vdso
riscv: Provide a definition for 'pause'
2024-07-12 03:16:39 -07:00
vendor_extensions
riscv: Extend cpufeature.c to detect vendor extensions
2024-07-22 15:36:54 -07:00
acenv.h
RISC-V: Add support to build the ACPI core
2023-06-01 08:45:01 -07:00
acpi.h
ACPI: RISCV: Add NUMA support based on SRAT and SLIT
2024-07-22 07:13:06 -07:00
alternative-macros.h
riscv: alternatives: fix a typo in comment
2023-08-02 13:49:07 -07:00
alternative.h
Merge patch series "Add non-coherent DMA support for AX45MP"
2023-09-08 11:24:34 -07:00
arch_hweight.h
riscv: lib: relax assembly constraints in hweight
2024-07-15 08:46:46 -07:00
archrandom.h
RISC-V: Implement archrandom when Zkr is available
2024-01-17 18:20:49 -08:00
asm-extable.h
riscv: select DCACHE_WORD_ACCESS for efficient unaligned access HW
2024-01-09 20:18:20 -08:00
asm-offsets.h
…
asm-prototypes.h
riscv: vector: allow kernel-mode Vector with preemption
2024-01-16 07:14:02 -08:00
asm.h
riscv: blacklist assembly symbols for kprobe
2024-01-24 15:59:42 -08:00
assembler.h
RISC-V: Add arch functions to support hibernation/suspend-to-disk
2023-04-29 11:25:13 -07:00
atomic.h
Merge patch series "Rework & improve riscv cmpxchg.h and atomic.h"
2024-04-28 14:50:33 -07:00
barrier.h
riscv: Add Zawrs support for spinlocks
2024-07-12 03:16:42 -07:00
bitops.h
riscv: Remove unnecessary int cast in variable_fls()
2024-07-10 14:30:35 -07:00
bug.h
bug: Use normal relative pointers in 'struct bug_entry'
2022-05-19 23:46:10 +02:00
cache.h
riscv: mm: still create swiotlb buffer for kmalloc() bouncing if required
2024-04-30 10:35:45 -07:00
cacheflush.h
riscv: Fix early ftrace nop patching
2024-05-23 08:22:17 -07:00
cacheinfo.h
…
cfi.h
bpf, riscv64/cfi: Support kCFI + BPF on riscv64
2024-03-06 15:18:16 -08:00
checksum.h
work around gcc bugs with 'asm goto' with outputs
2024-02-09 15:57:48 -08:00
clint.h
…
clocksource.h
…
cmpxchg.h
Merge tag 'riscv-for-linus-6.11-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
2024-07-20 09:11:27 -07:00
compat.h
riscv: Introduce set_compat_task() in asm/compat.h
2024-03-19 16:39:40 -07:00
cpu_ops_sbi.h
riscv: ensure cpu_ops_sbi is declared
2022-08-11 13:46:51 -07:00
cpu_ops.h
riscv: Use the same CPU operations for all CPUs
2024-01-04 15:03:07 -08:00
cpu.h
RISC-V: Add support to build the ACPI core
2023-06-01 08:45:01 -07:00
cpufeature.h
riscv: cpufeature: Extract common elements from extension checking
2024-07-22 15:36:57 -07:00
cpuidle.h
RISC-V: Enable CPU_IDLE drivers
2022-03-10 09:29:21 -08:00
crash_reserve.h
kexec: split crashkernel reservation code out from crash_core.c
2024-02-23 17:48:21 -08:00
csr.h
RISC-V: KVM: Add perf sampling support for guests
2024-04-26 13:13:50 +05:30
current.h
riscv: Rename "sp_in_global" to "current_stack_pointer"
2022-03-30 15:15:27 -07:00
delay.h
…
dma-noncoherent.h
riscv: mm: dma-noncoherent: nonstandard cache operations support
2023-09-01 09:08:57 -07:00
dmi.h
riscv: dmi: Add SMBIOS/DMI support
2024-06-26 08:02:33 -07:00
efi.h
Merge patch series "riscv: Introduce KASLR"
2023-09-08 11:25:13 -07:00
elf.h
riscv: Introduce set_compat_task() in asm/compat.h
2024-03-19 16:39:40 -07:00
entry-common.h
riscv: vector: do not pass task_struct into riscv_v_vstate_{save,restore}()
2024-01-16 07:13:59 -08:00
errata_list.h
Merge tag 'riscv-for-linus-6.10-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
2024-05-22 09:56:00 -07:00
extable.h
riscv: mm: stub extable related functions/macros for !MMU
2023-06-14 07:17:45 -07:00
fence.h
riscv/barrier: Consolidate fence definitions
2024-03-19 18:52:24 -07:00
fixmap.h
riscv: Move early dtb mapping into the fixmap region
2023-04-13 18:14:26 -07:00
fpu.h
riscv: add support for kernel-mode FPU
2024-05-19 14:36:19 -07:00
ftrace.h
function_graph: Everyone uses HAVE_FUNCTION_GRAPH_RET_ADDR_PTR, remove it
2024-06-11 11:18:24 -04:00
futex.h
riscv: extable: add a dedicated uaccess handler
2022-01-05 17:53:29 -08:00
gdb_xml.h
…
gpr-num.h
riscv: Add X register names to gpr-nums
2022-10-02 10:17:58 +05:30
hugetlb.h
mm: provide mm_struct and address to huge_ptep_get()
2024-07-12 15:52:15 -07:00
hwcap.h
riscv: Extend cpufeature.c to detect vendor extensions
2024-07-22 15:36:54 -07:00
hwprobe.h
RISC-V: hwprobe: Add MISALIGNED_PERF key
2024-08-14 13:13:23 -07:00
image.h
…
insn-def.h
riscv: Add Zawrs support for spinlocks
2024-07-12 03:16:42 -07:00
insn.h
RISC-V: fix vector insn load/store width mask
2024-06-25 08:47:10 -07:00
io.h
riscv/barrier: Consolidate fence definitions
2024-03-19 18:52:24 -07:00
irq_stack.h
riscv: Deduplicate IRQ stack switching
2023-10-27 14:43:06 -07:00
irq_work.h
arch: consolidate arch_irq_work_raise prototypes
2023-11-23 11:32:29 +01:00
irq.h
init: consolidate prototypes in linux/init.h
2023-06-09 17:44:16 -07:00
irqflags.h
riscv: Remove unnecessary irqflags processor.h include
2024-04-16 18:50:52 -07:00
jump_label.h
riscv: jump_label: Simplify assembly syntax
2024-06-26 07:36:28 -07:00
kasan.h
riscv: mm: Pre-allocate vmemmap/direct map/kasan PGD entries
2024-06-26 08:42:39 -07:00
Kbuild
riscv: convert to generic syscall table
2024-07-10 14:23:38 +02:00
kdebug.h
…
kexec.h
RISC-V: kexec: Fix memory leak of fdt buffer
2022-12-05 10:59:51 -08:00
kfence.h
riscv: Use accessors to page table entries instead of direct dereference
2023-12-20 10:48:15 -08:00
kgdb.h
…
kprobes.h
riscv: Only consider swbp/ss handlers for correct privileged mode
2023-09-20 06:45:27 -07:00
kvm_aia.h
RISC-V: KVM: Expose IMSIC registers as attributes of AIA irqchip
2023-06-19 22:27:58 +05:30
kvm_host.h
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
2024-07-20 12:41:03 -07:00
kvm_types.h
KVM: RISC-V: Use common KVM implementation of MMU memory caches
2022-01-06 14:38:50 +05:30
kvm_vcpu_fp.h
RISC-V: KVM: Improve ISA extension by using a bitmap
2022-07-29 17:14:11 +05:30
kvm_vcpu_insn.h
RISC-V: KVM: Add extensible CSR emulation framework
2022-07-29 17:14:53 +05:30
kvm_vcpu_pmu.h
RISC-V: KVM: Improve firmware counter read function
2024-04-26 13:13:54 +05:30
kvm_vcpu_sbi.h
RISC-V: KVM: Add support for SBI STA registers
2023-12-30 11:26:35 +05:30
kvm_vcpu_timer.h
RISC-V: KVM: Fix kvm_riscv_vcpu_timer_pending() for Sstc
2022-10-21 11:52:45 +05:30
kvm_vcpu_vector.h
RISC-V: KVM: Improve vector save/restore functions
2023-08-08 17:26:05 +05:30
linkage.h
…
membarrier.h
membarrier: riscv: Provide core serializing command
2024-02-15 08:04:14 -08:00
mmio.h
riscv/barrier: Consolidate fence definitions
2024-03-19 18:52:24 -07:00
mmiowb.h
riscv/barrier: Consolidate fence definitions
2024-03-19 18:52:24 -07:00
mmu_context.h
…
mmu.h
riscv: mm: Change attribute from __init to __meminit for page functions
2024-06-26 08:42:39 -07:00
mmzone.h
…
module.h
riscv: module: move find_section to module.h
2023-01-31 23:29:39 -08:00
module.lds.h
riscv module: remove (NOLOAD)
2022-03-29 14:31:07 -07:00
numa.h
…
page.h
riscv: Extend sv39 linear mapping max size to 128G
2024-07-26 05:50:50 -07:00
paravirt_api_clock.h
RISC-V: paravirt: Add skeleton for pv-time support
2023-12-30 11:25:03 +05:30
paravirt.h
RISC-V: paravirt: Add skeleton for pv-time support
2023-12-30 11:25:03 +05:30
patch.h
riscv: Pass patch_text() the length in bytes
2024-06-26 07:36:31 -07:00
pci.h
Merge tag 'riscv-for-linus-5.20-mw0' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
2022-08-06 15:04:48 -07:00
perf_event.h
riscv: perf: Fix callchain parse error with kernel tracepoint events
2023-06-01 10:09:22 -07:00
pgalloc.h
riscv: Use IPIs for remote cache/TLB flushes by default
2024-04-29 10:49:26 -07:00
pgtable-32.h
RISC-V: Provide pgtable_l5_enabled on rv32
2023-10-31 19:15:50 -07:00
pgtable-64.h
riscv: mm: Add support for ZONE_DEVICE
2024-06-26 08:42:46 -07:00
pgtable-bits.h
riscv: mm: Add support for ZONE_DEVICE
2024-06-26 08:42:46 -07:00
pgtable.h
Merge tag 'mm-stable-2024-07-21-14-50' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2024-07-21 17:15:46 -07:00
probes.h
…
processor.h
riscv: mm: Do not restrict mmap address based on hint
2024-08-29 06:03:29 -07:00
ptrace.h
riscv: entry: Convert to generic entry
2023-03-23 08:47:00 -07:00
sbi.h
riscv: Fix RISCV_ALTERNATIVE_EARLY
2024-09-03 07:57:55 -07:00
scs.h
riscv: Use separate IRQ shadow call stacks
2023-10-27 14:43:09 -07:00
seccomp.h
…
sections.h
riscv: Check if the code to patch lies in the exit section
2024-01-09 10:58:59 -08:00
semihost.h
riscv: Implement semihost.h for earlycon semihost driver
2023-01-19 14:58:19 +01:00
set_memory.h
riscv: Prepare EFI header for relocatable kernels
2023-04-19 07:46:28 -07:00
signal32.h
riscv: compat: signal: Add rt_frame implementation
2022-05-17 16:37:21 -07:00
simd.h
riscv: vector: Fix a typo of preempt_v
2024-03-15 10:17:38 -07:00
smp.h
riscv: Use IPIs for remote cache/TLB flushes by default
2024-04-29 10:49:26 -07:00
soc.h
…
sparsemem.h
riscv: Allow to dynamically define VA_BITS
2022-01-19 17:54:07 -08:00
stackprotector.h
stackprotector: actually use get_random_canary()
2022-11-18 02:18:10 +01:00
stacktrace.h
riscv: declare overflow_stack as exported from traps.c
2024-02-07 09:55:27 -08:00
string.h
RISC-V: add infrastructure to allow different str* implementations
2023-01-31 11:43:23 -08:00
suspend.h
riscv: Do not save the scratch CSR during suspend
2024-04-28 14:50:36 -07:00
switch_to.h
riscv: Include riscv_set_icache_flush_ctx prctl
2024-04-18 08:10:58 -07:00
sync_core.h
membarrier: riscv: Provide core serializing command
2024-02-15 08:04:14 -08:00
syscall_table.h
riscv: convert to generic syscall table
2024-07-10 14:23:38 +02:00
syscall_wrapper.h
riscv: Mark __se_sys_* functions __used
2024-03-26 14:11:03 -07:00
syscall.h
riscv: Implement syscall wrappers
2023-08-23 14:16:36 -07:00
thread_info.h
riscv: enable HAVE_ARCH_STACKLEAK
2024-07-26 05:50:47 -07:00
timex.h
init: consolidate prototypes in linux/init.h
2023-06-09 17:44:16 -07:00
tlb.h
Merge tag 'riscv-for-linus-6.9-mw2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
2024-03-22 10:41:13 -07:00
tlbbatch.h
riscv: Add support for BATCHED_UNMAP_TLB_FLUSH
2024-01-11 08:01:53 -08:00
tlbflush.h
riscv: mm: Use a fixed layout for the MM context ID
2024-04-29 10:49:33 -07:00
topology.h
sched/topology: Add a new arch_scale_freq_ref() method
2023-12-23 15:52:34 +01:00
trace.h
riscv: Add tracepoints for SBI calls and returns
2024-07-10 13:23:09 -07:00
uaccess.h
riscv: Fix spurious errors from __get/put_kernel_nofault
2024-03-26 08:34:48 -07:00
unistd.h
riscv: convert to generic syscall table
2024-07-10 14:23:38 +02:00
uprobes.h
riscv: Only consider swbp/ss handlers for correct privileged mode
2023-09-20 06:45:27 -07:00
vdso.h
riscv: alternative: patch alternatives in the vDSO
2023-01-31 23:29:42 -08:00
vector.h
riscv: vector: adjust minimum Vector requirement to ZVE32X
2024-05-30 14:33:10 -07:00
vendor_extensions.h
riscv: cpufeature: Extract common elements from extension checking
2024-07-22 15:36:57 -07:00
vendorid_list.h
riscv: errata: Rename defines for Andes
2024-03-12 07:13:12 -07:00
vermagic.h
…
vmalloc.h
Revert "riscv: mm: support Svnapot in huge vmap"
2024-02-29 10:21:22 -08:00
word-at-a-time.h
kernel.h: removed REPEAT_BYTE from kernel.h
2024-02-01 09:47:59 -08:00
xip_fixup.h
riscv: Fixed wrong register in XIP_FIXUP_FLASH_OFFSET macro
2024-01-09 19:33:21 -08:00
xor.h
riscv: Add vector extension XOR implementation
2024-01-16 07:13:55 -08:00