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riscv: dump register and pfn [2/3]

Browse Source 
PD#SWPL-94239

Problem:
dump register and pfn

Solution:
dump register and pfn

Verify:
on PXP

Signed-off-by: Lei Zhang <lei.zhang@amlogic.com>
Change-Id: I9acbabb63e4647b8619c29f822d54ade9abcb1ba
This commit is contained in:
Lei Zhang
2022-09-28 11:29:44 +08:00
committed by Dongjin Kim
parent fd04310eaf
commit 512585a440
4 changed files with 26 additions and 0 deletions
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1
arch/riscv/Kconfig
View File

@@ -31,6 +31,7 @@ config RISCV
select ARCH_HAS_STRICT_MODULE_RWX if MMU && !XIP_KERNEL
select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
select ARCH_HAS_UBSAN_SANITIZE_ALL
select ARCH_KEEP_MEMBLOCK if AMLOGIC_MEM_DEBUG
select ARCH_OPTIONAL_KERNEL_RWX if ARCH_HAS_STRICT_KERNEL_RWX
select ARCH_OPTIONAL_KERNEL_RWX_DEFAULT
select ARCH_STACKWALK

11
arch/riscv/kernel/process.c
View File

@@ -24,6 +24,10 @@
#include <asm/switch_to.h>
#include <asm/thread_info.h>
#ifdef CONFIG_AMLOGIC_USER_FAULT
#include <linux/amlogic/user_fault.h>
#endif
register unsigned long gp_in_global __asm__("gp");
#if defined(CONFIG_STACKPROTECTOR) && !defined(CONFIG_STACKPROTECTOR_PER_TASK)
@@ -43,6 +47,9 @@ void arch_cpu_idle(void)
void __show_regs(struct pt_regs *regs)
{
#ifdef CONFIG_AMLOGIC_USER_FAULT
show_user_fault_info(regs, regs->ra, regs->sp);
#endif
show_regs_print_info(KERN_DEFAULT);
if (!user_mode(regs)) {
@@ -75,6 +82,10 @@ void __show_regs(struct pt_regs *regs)
pr_cont("status: " REG_FMT " badaddr: " REG_FMT " cause: " REG_FMT "\n",
regs->status, regs->badaddr, regs->cause);
#ifdef CONFIG_AMLOGIC_USER_FAULT
show_extra_reg_data(regs);
#endif
}
void show_regs(struct pt_regs *regs)
{

7
arch/riscv/kernel/traps.c
View File

@@ -25,6 +25,10 @@
#include <asm/ptrace.h>
#include <asm/thread_info.h>
#ifdef CONFIG_AMLOGIC_USER_FAULT
#include <linux/amlogic/user_fault.h>
#endif
int show_unhandled_signals = 1;
static DEFINE_SPINLOCK(die_lock);
@@ -77,6 +81,9 @@ void do_trap(struct pt_regs *regs, int signo, int code, unsigned long addr)
print_vma_addr(KERN_CONT " in ", instruction_pointer(regs));
pr_cont("\n");
__show_regs(regs);
#ifdef CONFIG_AMLOGIC_USER_FAULT
show_all_pfn(current, regs);
#endif
}
force_sig_fault(signo, code, (void __user *)addr);

7
arch/riscv/mm/init.c
View File

@@ -31,6 +31,10 @@
#include "../kernel/head.h"
#ifdef CONFIG_AMLOGIC_MEM_DEBUG
#include <linux/amlogic/mem_debug.h>
#endif
struct kernel_mapping kernel_map __ro_after_init;
EXPORT_SYMBOL(kernel_map);
#ifdef CONFIG_XIP_KERNEL
@@ -130,6 +134,9 @@ void __init mem_init(void)
high_memory = (void *)(__va(PFN_PHYS(max_low_pfn)));
memblock_free_all();
#ifdef CONFIG_AMLOGIC_MEM_DEBUG
dump_mem_layout_boot_phase();
#endif
print_vm_layout();
}