Samuel Holland f40cab8e18 riscv: Fix SMP when shadow call stacks are enabled ... This fixes two bugs in SCS initialization for secondary CPUs. First, the SCS was not initialized at all in the spinwait boot path. Second, the code for the SBI HSM path attempted to initialize the SCS before enabling the MMU. However, that involves dereferencing the thread pointer, which requires the MMU to be enabled. Fix both issues by setting up the SCS in the common secondary entry path, after enabling the MMU. Fixes: d1584d791a ("riscv: Implement Shadow Call Stack") Signed-off-by: Samuel Holland <samuel.holland@sifive.com> Reviewed-by: Sami Tolvanen <samitolvanen@google.com> Link: https://lore.kernel.org/r/20231121211958.3158576-1-samuel.holland@sifive.com Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>		2023-12-06 07:15:19 -08:00
..
compat_vdso	kbuild: unify vdso_install rules	2023-10-28 21:09:02 +09:00
pi	riscv: Introduce virtual kernel mapping KASLR	2023-09-05 19:49:27 -07:00
probes	riscv: Use SYM_*() assembly macros instead of deprecated ones	2023-11-06 09:42:47 -08:00
tests	Support rv32 ULEB128 test	2023-12-06 04:08:39 -08:00
vdso	RISC-V Patches for the 6.7 Merge Window, Part 2	2023-11-10 09:23:17 -08:00
.gitignore
acpi.c	RISC-V: ACPI: Enhance acpi_os_ioremap with MMIO remapping	2023-10-26 09:40:31 -07:00
alternative.c	Merge patch series "Add non-coherent DMA support for AX45MP"	2023-09-08 11:24:34 -07:00
asm-offsets.c	riscv: Implement Shadow Call Stack	2023-10-27 14:43:08 -07:00
cacheinfo.c	RISC-V Patches for the 6.4 Merge Window, Part 1	2023-04-28 16:55:39 -07:00
cfi.c	riscv: Add CFI error handling	2023-08-23 14:16:39 -07:00
compat_signal.c
compat_syscall_table.c	riscv: Implement syscall wrappers	2023-08-23 14:16:36 -07:00
copy-unaligned.h	RISC-V: Probe for unaligned access speed	2023-09-01 09:06:25 -07:00
copy-unaligned.S	riscv: Use SYM_*() assembly macros instead of deprecated ones	2023-11-06 09:42:47 -08:00
cpu-hotplug.c	riscv: Switch to hotplug core state synchronization	2023-05-15 13:44:59 +02:00
cpu.c	Merge patch series "Linux RISC-V AIA Preparatory Series"	2023-11-08 18:57:17 -08:00
cpu_ops.c	RISC-V: Align SBI probe implementation with spec	2023-04-29 13:04:50 -07:00
cpu_ops_sbi.c
cpu_ops_spinwait.c
cpufeature.c	RISC-V Patches for the 6.7 Merge Window, Part 2	2023-11-10 09:23:17 -08:00
crash_core.c	riscv: Export va_kernel_pa_offset in vmcoreinfo	2023-08-02 13:50:31 -07:00
crash_dump.c
crash_save_regs.S
efi-header.S	riscv: Prepare EFI header for relocatable kernels	2023-04-19 07:46:28 -07:00
efi.c
elf_kexec.c	Merge patch series "riscv: kexec: cleanup and fixups"	2023-10-31 19:15:41 -07:00
entry.S	riscv: kernel: Use correct SYM_DATA_*() macro for data	2023-11-06 09:42:48 -08:00
fpu.S	riscv: Use SYM_*() assembly macros instead of deprecated ones	2023-11-06 09:42:47 -08:00
ftrace.c
head.h
head.S	riscv: Fix SMP when shadow call stacks are enabled	2023-12-06 07:15:19 -08:00
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
kexec_relocate.S	riscv: kexec: Cleanup riscv_kexec_relocate	2023-09-20 02:53:29 -07:00
kgdb.c
machine_kexec.c
machine_kexec_file.c
Makefile	Merge patch series "riscv: Add remaining module relocations and tests"	2023-11-07 14:59:35 -08:00
mcount-dyn.S	riscv: Use SYM_*() assembly macros instead of deprecated ones	2023-11-06 09:42:47 -08:00
mcount.S	riscv: Use SYM_*() assembly macros instead of deprecated ones	2023-11-06 09:42:47 -08:00
module-sections.c
module.c	riscv: Correct type casting in module loading	2023-12-04 11:02:38 -08:00
patch.c	riscv: implement a memset like function for text	2023-09-06 06:26:06 -07:00
perf_callchain.c
perf_regs.c
process.c	riscv: add support for PR_SET_UNALIGN and PR_GET_UNALIGN	2023-11-01 08:34:59 -07:00
ptrace.c	RISC-V: Add ptrace support for vectors	2023-09-01 13:05:38 -07:00
reset.c
riscv_ksyms.c
sbi-ipi.c
sbi.c	riscv: Make __flush_tlb_range() loop over pte instead of flushing the whole tlb	2023-11-06 07:20:51 -08:00
setup.c	Merge patch "drivers: perf: Do not broadcast to other cpus when starting a counter"	2023-11-09 06:44:13 -08:00
signal.c	Merge patch "drivers: perf: Do not broadcast to other cpus when starting a counter"	2023-11-09 06:44:13 -08:00
smp.c	riscv: Fix CPU feature detection with SMP disabled	2023-08-08 15:28:25 -07:00
smpboot.c	RISC-V: Probe misaligned access speed in parallel	2023-11-07 15:13:47 -08:00
soc.c
stacktrace.c
suspend.c	RISC-V: Change suspend_save_csrs and suspend_restore_csrs to public function	2023-04-29 11:25:10 -07:00
suspend_entry.S	riscv: Use SYM_*() assembly macros instead of deprecated ones	2023-11-06 09:42:47 -08:00
sys_riscv.c	RISC-V: hwprobe: Always use u64 for extension bits	2023-12-06 05:28:08 -08:00
syscall_table.c	riscv: Implement syscall wrappers	2023-08-23 14:16:36 -07:00
time.c	RISC-V: time.c: Add ACPI support for time_init()	2023-06-01 08:45:13 -07:00
traps.c	Merge patch "drivers: perf: Do not broadcast to other cpus when starting a counter"	2023-11-09 06:44:13 -08:00
traps_misaligned.c	riscv: fix misaligned access handling of C.SWSP and C.SDSP	2023-12-06 06:18:02 -08:00
vdso.c	riscv: vdso: include vdso/vsyscall.h for vdso_data	2023-07-04 07:54:41 -07:00
vector.c	riscv: Remove now superfluous sentinel element from ctl_table array	2023-10-10 15:22:02 -07:00
vmlinux-xip.lds.S	riscv: vmlinux-xip.lds.S: remove .alternative section	2023-06-25 16:24:03 -07:00
vmlinux.lds.S	riscv: enable HAVE_LD_DEAD_CODE_DATA_ELIMINATION	2023-06-25 16:24:05 -07:00