Vivian Wang 2b29be967a riscv: cpu_ops_sbi: Use static array for boot_data ... Since commit 6b9f29b81b ("riscv: Enable pcpu page first chunk allocator"), if NUMA is enabled, the page percpu allocator may be used on very sparse configurations, or when requested on boot with percpu_alloc=page. In that case, percpu data gets put in the vmalloc area. However, sbi_hsm_hart_start() needs the physical address of a sbi_hart_boot_data, and simply assumes that __pa() would work. This causes the just started hart to immediately access an invalid address and hang. Fortunately, struct sbi_hart_boot_data is not too large, so we can simply allocate an array for boot_data statically, putting it in the kernel image. This fixes NUMA=y SMP boot on Sophgo SG2042. To reproduce on QEMU: Set CONFIG_NUMA=y and CONFIG_DEBUG_VIRTUAL=y, then run with: qemu-system-riscv64 -M virt -smp 2 -nographic \ -kernel arch/riscv/boot/Image \ -append "percpu_alloc=page" Kernel output: [ 0.000000] Booting Linux on hartid 0 [ 0.000000] Linux version 6.16.0-rc1 (dram@sakuya) (riscv64-unknown-linux-gnu-gcc (GCC) 14.2.1 20250322, GNU ld (GNU Binutils) 2.44) #11 SMP Tue Jun 24 14:56:22 CST 2025 ... [ 0.000000] percpu: 28 4K pages/cpu s85784 r8192 d20712 ... [ 0.083192] smp: Bringing up secondary CPUs ... [ 0.086722] ------------[ cut here ]------------ [ 0.086849] virt_to_phys used for non-linear address: (____ptrval____) (0xff2000000001d080) [ 0.088001] WARNING: CPU: 0 PID: 1 at arch/riscv/mm/physaddr.c:14 __virt_to_phys+0xae/0xe8 [ 0.088376] Modules linked in: [ 0.088656] CPU: 0 UID: 0 PID: 1 Comm: swapper/0 Not tainted 6.16.0-rc1 #11 NONE [ 0.088833] Hardware name: riscv-virtio,qemu (DT) [ 0.088948] epc : __virt_to_phys+0xae/0xe8 [ 0.089001] ra : __virt_to_phys+0xae/0xe8 [ 0.089037] epc : ffffffff80021eaa ra : ffffffff80021eaa sp : ff2000000004bbc0 [ 0.089057] gp : ffffffff817f49c0 tp : ff60000001d60000 t0 : 5f6f745f74726976 [ 0.089076] t1 : 0000000000000076 t2 : 705f6f745f747269 s0 : ff2000000004bbe0 [ 0.089095] s1 : ff2000000001d080 a0 : 0000000000000000 a1 : 0000000000000000 [ 0.089113] a2 : 0000000000000000 a3 : 0000000000000000 a4 : 0000000000000000 [ 0.089131] a5 : 0000000000000000 a6 : 0000000000000000 a7 : 0000000000000000 [ 0.089155] s2 : ffffffff8130dc00 s3 : 0000000000000001 s4 : 0000000000000001 [ 0.089174] s5 : ffffffff8185eff8 s6 : ff2000007f1eb000 s7 : ffffffff8002a2ec [ 0.089193] s8 : 0000000000000001 s9 : 0000000000000001 s10: 0000000000000000 [ 0.089211] s11: 0000000000000000 t3 : ffffffff8180a9f7 t4 : ffffffff8180a9f7 [ 0.089960] t5 : ffffffff8180a9f8 t6 : ff2000000004b9d8 [ 0.089984] status: 0000000200000120 badaddr: ffffffff80021eaa cause: 0000000000000003 [ 0.090101] [<ffffffff80021eaa>] __virt_to_phys+0xae/0xe8 [ 0.090228] [<ffffffff8001d796>] sbi_cpu_start+0x6e/0xe8 [ 0.090247] [<ffffffff8001a5da>] __cpu_up+0x1e/0x8c [ 0.090260] [<ffffffff8002a32e>] bringup_cpu+0x42/0x258 [ 0.090277] [<ffffffff8002914c>] cpuhp_invoke_callback+0xe0/0x40c [ 0.090292] [<ffffffff800294e0>] __cpuhp_invoke_callback_range+0x68/0xfc [ 0.090320] [<ffffffff8002a96a>] _cpu_up+0x11a/0x244 [ 0.090334] [<ffffffff8002aae6>] cpu_up+0x52/0x90 [ 0.090384] [<ffffffff80c09350>] bringup_nonboot_cpus+0x78/0x118 [ 0.090411] [<ffffffff80c11060>] smp_init+0x34/0xb8 [ 0.090425] [<ffffffff80c01220>] kernel_init_freeable+0x148/0x2e4 [ 0.090442] [<ffffffff80b83802>] kernel_init+0x1e/0x14c [ 0.090455] [<ffffffff800124ca>] ret_from_fork_kernel+0xe/0xf0 [ 0.090471] [<ffffffff80b8d9c2>] ret_from_fork_kernel_asm+0x16/0x18 [ 0.090560] ---[ end trace 0000000000000000 ]--- [ 1.179875] CPU1: failed to come online [ 1.190324] smp: Brought up 1 node, 1 CPU Cc: stable@vger.kernel.org Reported-by: Han Gao <rabenda.cn@gmail.com> Fixes: 6b9f29b81b ("riscv: Enable pcpu page first chunk allocator") Reviewed-by: Alexandre Ghiti <alexghiti@rivosinc.com> Tested-by: Alexandre Ghiti <alexghiti@rivosinc.com> Signed-off-by: Vivian Wang <wangruikang@iscas.ac.cn> Link: https://lore.kernel.org/r/20250624-riscv-hsm-boot-data-array-v1-1-50b5eeafbe61@iscas.ac.cn Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com>		2025-06-30 06:58:11 +00:00
..
compat_vdso	Makefile: remove redundant tool coverage variables	2024-05-14 23:35:48 +09:00
pi	riscv: Do not use fortify in early code	2024-10-25 06:18:36 -07:00
probes	riscv: uprobes: Add missing fence.i after building the XOL buffer	2025-04-24 13:20:02 -07:00
tests	treewide: replace or remove redundant def_bool in Kconfig files	2024-02-20 20:47:45 +09:00
vdso	riscv: vdso: Exclude .rodata from the PT_DYNAMIC segment	2025-06-10 13:06:48 -07:00
vendor_extensions	riscv: Fix sparse warning in vendor_extensions/sifive.c	2025-06-23 15:57:59 -07:00
.gitignore
acpi_numa.c	ACPI: NUMA: initialize all values of acpi_early_node_map to NUMA_NO_NODE	2024-09-20 01:31:26 -07:00
acpi.c	mm/ioremap: pass pgprot_t to ioremap_prot() instead of unsigned long	2025-03-16 22:06:23 -07:00
alternative.c	asm-generic: introduce text-patching.h	2024-11-07 14:25:15 -08:00
asm-offsets.c	riscv: uaccess: Only restore the CSR_STATUS SUM bit	2025-06-05 14:03:17 -07:00
bugs.c	riscv: Add ghostwrite vulnerability	2025-01-18 12:33:39 -08:00
cacheinfo.c	riscv: cacheinfo: Use of_property_present() for non-boolean properties	2025-02-14 13:04:20 -08:00
cfi.c	bpf, riscv64/cfi: Support kCFI + BPF on riscv64	2024-03-06 15:18:16 -08:00
compat_signal.c	riscv: compat: signal: Add rt_frame implementation	2022-05-17 16:37:21 -07:00
compat_syscall_table.c	riscv: convert to generic syscall table	2024-07-10 14:23:38 +02:00
copy-unaligned.h	RISC-V: Report vector unaligned access speed hwprobe	2024-10-18 12:38:34 -07:00
copy-unaligned.S	riscv: Use SYM_*() assembly macros instead of deprecated ones	2023-11-06 09:42:47 -08:00
cpu_ops_sbi.c	riscv: cpu_ops_sbi: Use static array for boot_data	2025-06-30 06:58:11 +00:00
cpu_ops_spinwait.c	riscv: prevent pt_regs corruption for secondary idle threads	2024-05-30 09:42:51 -07:00
cpu_ops.c	riscv: Use the same CPU operations for all CPUs	2024-01-04 15:03:07 -08:00
cpu-hotplug.c	riscv: Use '%u' to format the output of 'cpu'	2024-10-25 06:18:40 -07:00
cpu.c	riscv: Add vendor extensions to /proc/cpuinfo	2024-07-22 15:36:55 -07:00
cpufeature.c	riscv: Add support for Zicbop	2025-06-05 11:09:37 -07:00
crash_dump.c	vmcore: convert copy_oldmem_page() to take an iov_iter	2022-04-29 14:37:59 -07:00
crash_save_regs.S	RISC-V: Fixup get incorrect user mode PC for kernel mode regs	2022-08-11 08:54:40 -07:00
efi-header.S	include: pe.h: Fix PE definitions	2025-05-21 16:46:37 +02:00
efi.c	riscv: Use accessors to page table entries instead of direct dereference	2023-12-20 10:48:15 -08:00
entry.S	RISC-V Patches for the 6.16 Merge Window, Part 1	2025-06-06 18:05:18 -07:00
fpu.S	RISC-V: Replace RISCV_MISALIGNED with RISCV_SCALAR_MISALIGNED	2024-10-18 12:38:32 -07:00
ftrace.c	riscv: ftrace: support direct call using call_ops	2025-06-05 11:09:31 -07:00
head.h	riscv: entry: Convert to generic entry	2023-03-23 08:47:00 -07:00
head.S	RISC-V: KVM: Remove scounteren initialization	2025-05-21 09:34:55 +05:30
hibernate-asm.S	riscv: Use SYM_*() assembly macros instead of deprecated ones	2023-11-06 09:42:47 -08:00
hibernate.c	riscv: hibernate: remove WARN_ON in save_processor_state	2023-06-23 10:06:22 -07:00
image-vars.h	efi: move screen_info into efi init code	2023-10-17 16:33:39 +02:00
irq.c	Merge patch "drivers: perf: Do not broadcast to other cpus when starting a counter"	2023-11-09 06:44:13 -08:00
jump_label.c	riscv: Move nop definition to insn-def.h	2025-03-20 09:14:42 +00:00
kernel_mode_fpu.c	riscv: add support for kernel-mode FPU	2024-05-19 14:36:19 -07:00
kernel_mode_vector.c	riscv: vector: Support xtheadvector save/restore	2025-01-18 12:33:33 -08:00
kexec_elf.c	riscv: kexec_file: Split the loading of kernel and others	2025-06-05 11:09:33 -07:00
kexec_image.c	riscv: kexec_file: Support loading Image binary file	2025-06-05 11:09:34 -07:00
kexec_relocate.S	riscv: kexec: Cleanup riscv_kexec_relocate	2023-09-20 02:53:29 -07:00
kgdb.c	riscv: KGDB: Remove ".option norvc/.option rvc" for kgdb_compiled_break	2025-04-16 07:29:34 -07:00
machine_kexec_file.c	riscv: kexec_file: Support loading Image binary file	2025-06-05 11:09:34 -07:00
machine_kexec.c	kexec: Consolidate machine_kexec_mask_interrupts() implementation	2024-12-11 20:32:34 +01:00
Makefile	Kbuild updates for v6.16	2025-06-07 10:05:35 -07:00
Makefile.syscalls	syscalls: fix syscall macros for newfstat/newfstatat	2024-08-02 15:20:47 +02:00
mcount-dyn.S	riscv: ftrace: support direct call using call_ops	2025-06-05 11:09:31 -07:00
mcount.S	riscv: fgraph: Fix stack layout to match __arch_ftrace_regs argument of ftrace_return_to_handler	2025-03-19 12:03:25 +00:00
module-sections.c	riscv: module: Optimize PLT/GOT entry counting	2025-06-05 11:09:43 -07:00
module.c	riscv: module: Fix out-of-bounds relocation access	2025-04-14 13:07:07 +00:00
paravirt.c	RISC-V: KVM: Rename the SBI_STA_SHMEM_DISABLE to a generic name	2024-04-22 11:13:52 +05:30
patch.c	asm-generic: introduce text-patching.h	2024-11-07 14:25:15 -08:00
perf_callchain.c	The biggest change here is eliminating the awful idea that KVM had, of	2024-11-23 16:00:50 -08:00
perf_regs.c
process.c	RISC-V Patches for the 6.16 Merge Window, Part 1	2025-06-06 18:05:18 -07:00
ptrace.c	riscv: Allow ptrace control of the tagged address ABI	2024-10-24 14:12:57 -07:00
reset.c	riscv: Use do_kernel_power_off()	2022-05-19 19:30:30 +02:00
return_address.c	riscv: add CALLER_ADDRx support	2024-02-22 12:17:47 -08:00
riscv_ksyms.c	riscv: Omit optimized string routines when using KASAN	2024-09-19 01:10:00 -07:00
sbi_ecall.c	riscv: Fix RISCV_ALTERNATIVE_EARLY	2024-09-03 07:57:55 -07:00
sbi-ipi.c	RISC-V: Enable the IPI before workqueue_online_cpu()	2024-08-01 07:15:43 -07:00
sbi.c	riscv: sbi: add SBI FWFT extension calls	2025-06-04 15:11:02 -07:00
setup.c	riscv: export boot_cpu_hartid	2025-06-23 16:30:05 -07:00
signal.c	riscv: signal: fix signal frame size	2025-02-14 13:06:44 -08:00
smp.c	riscv: print hartid on bringup	2025-04-01 07:03:03 +00:00
smpboot.c	riscv: print hartid on bringup	2025-04-01 07:03:03 +00:00
soc.c
stacktrace.c	riscv: remove useless pc check in stacktrace handling	2025-03-18 09:06:21 +00:00
suspend_entry.S	riscv: Use SYM_*() assembly macros instead of deprecated ones	2023-11-06 09:42:47 -08:00
suspend.c	riscv: Add stimecmp save and restore	2025-03-18 12:59:03 +00:00
sys_hwprobe.c	Merge tag 'riscv-mw1-6.16-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/alexghiti/linux into for-next	2025-06-05 12:26:06 -07:00
sys_riscv.c	syscalls: mmap(): use unsigned offset type consistently	2024-06-25 15:57:38 +02:00
syscall_table.c	riscv: convert to generic syscall table	2024-07-10 14:23:38 +02:00
time.c	RISC-V: paravirt: Add skeleton for pv-time support	2023-12-30 11:25:03 +05:30
traps_misaligned.c	Revert "riscv: misaligned: fix sleeping function called during misaligned access handling"	2025-06-23 15:38:09 -07:00
traps.c	riscv: misaligned: enable IRQs while handling misaligned accesses	2025-05-08 12:00:36 +00:00
unaligned_access_speed.c	riscv: misaligned: request misaligned exception from SBI	2025-06-04 15:11:03 -07:00
vdso.c	riscv: enable mseal sysmap for RV64	2025-06-05 14:03:08 -07:00
vec-copy-unaligned.S	riscv: Fix the __riscv_copy_vec_words_unaligned implementation	2025-03-18 13:37:27 +00:00
vector.c	RISC-V Patches for the 6.14 Merge Window, Part 1	2025-01-31 15:13:25 -08:00
vendor_extensions.c	riscv: Add SiFive xsfvqmaccdod and xsfvqmaccqoq vendor extensions	2025-05-08 11:01:43 -07:00
vmcore_info.c	riscv: don't export va_kernel_pa_offset in vmcoreinfo for XIP kernel	2024-09-12 07:22:56 -07:00
vmlinux-xip.lds.S	riscv: remove limit on the size of read-only section for XIP kernel	2024-09-12 07:23:02 -07:00
vmlinux.lds.S	riscv: Add runtime constant support	2025-03-20 09:15:03 +00:00