[PATCH V4 7/9] RISCV64: Add 'help -m/M' command support

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Add riscv64_dump_machdep_table() implementation, display machdep_table.

crash> help -m
              flags: 80 ()
             kvbase: ff60000000000000
  identity_map_base: ff60000000000000
           pagesize: 4096
          pageshift: 12
           pagemask: fffffffffffff000
         pageoffset: fff
        pgdir_shift: 48
       ptrs_per_pgd: 512
       ptrs_per_pte: 512
          stacksize: 16384
                 hz: 250
            memsize: 1071644672 (0x3fe00000)
               bits: 64
         back_trace: riscv64_back_trace_cmd()
    processor_speed: riscv64_processor_speed()
              uvtop: riscv64_uvtop()
              kvtop: riscv64_kvtop()
    get_stack_frame: riscv64_get_stack_frame()
      get_stackbase: generic_get_stackbase()
       get_stacktop: generic_get_stacktop()
      translate_pte: riscv64_translate_pte()
        memory_size: generic_memory_size()
      vmalloc_start: riscv64_vmalloc_start()
       is_task_addr: riscv64_is_task_addr()
      verify_symbol: riscv64_verify_symbol()
         dis_filter: generic_dis_filter()
           dump_irq: generic_dump_irq()
    show_interrupts: generic_show_interrupts()
   get_irq_affinity: generic_get_irq_affinity()
           cmd_mach: riscv64_cmd_mach()
       get_smp_cpus: riscv64_get_smp_cpus()
          is_kvaddr: riscv64_is_kvaddr()
          is_uvaddr: riscv64_is_uvaddr()
       verify_paddr: generic_verify_paddr()
    init_kernel_pgd: NULL
    value_to_symbol: generic_machdep_value_to_symbol()
  line_number_hooks: NULL
      last_pgd_read: ffffffff810e9000
      last_p4d_read: 81410000
      last_pud_read: 81411000
      last_pmd_read: 81412000
     last_ptbl_read: 81415000
                pgd: 560d586f3ab0
                p4d: 560d586f4ac0
                pud: 560d586f5ad0
                pmd: 560d586f6ae0
               ptbl: 560d586f7af0
  section_size_bits: 27
   max_physmem_bits: 56
  sections_per_root: 0
           machspec: 560d57d204a0

Signed-off-by: Xianting Tian <xianting.tian@xxxxxxxxxxxxxxxxx>
---
 riscv64.c | 60 ++++++++++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 59 insertions(+), 1 deletion(-)

diff --git a/riscv64.c b/riscv64.c
index ddd801c..68eff5d 100644
--- a/riscv64.c
+++ b/riscv64.c
@@ -132,7 +132,65 @@ riscv64_verify_symbol(const char *name, ulong value, char type)
 void
 riscv64_dump_machdep_table(ulong arg)
 {
-	/* TODO: */
+	int others = 0;
+
+	fprintf(fp, "              flags: %lx (", machdep->flags);
+	if (machdep->flags & KSYMS_START)
+		fprintf(fp, "%sKSYMS_START", others++ ? "|" : "");
+	fprintf(fp, ")\n");
+
+	fprintf(fp, "             kvbase: %lx\n", machdep->kvbase);
+	fprintf(fp, "  identity_map_base: %lx\n", machdep->identity_map_base);
+	fprintf(fp, "           pagesize: %d\n", machdep->pagesize);
+	fprintf(fp, "          pageshift: %d\n", machdep->pageshift);
+	fprintf(fp, "           pagemask: %llx\n", machdep->pagemask);
+	fprintf(fp, "         pageoffset: %lx\n", machdep->pageoffset);
+	fprintf(fp, "        pgdir_shift: %ld\n", machdep->machspec->va_bits - 9);
+	fprintf(fp, "       ptrs_per_pgd: %u\n", PTRS_PER_PGD);
+	fprintf(fp, "       ptrs_per_pte: %d\n", PTRS_PER_PTE);
+	fprintf(fp, "          stacksize: %ld\n", machdep->stacksize);
+	fprintf(fp, "                 hz: %d\n", machdep->hz);
+	fprintf(fp, "            memsize: %ld (0x%lx)\n",
+		machdep->memsize, machdep->memsize);
+	fprintf(fp, "               bits: %d\n", machdep->bits);
+	fprintf(fp, "         back_trace: riscv64_back_trace_cmd()\n");
+	fprintf(fp, "    processor_speed: riscv64_processor_speed()\n");
+	fprintf(fp, "              uvtop: riscv64_uvtop()\n");
+	fprintf(fp, "              kvtop: riscv64_kvtop()\n");
+	fprintf(fp, "    get_stack_frame: riscv64_get_stack_frame()\n");
+	fprintf(fp, "      get_stackbase: generic_get_stackbase()\n");
+	fprintf(fp, "       get_stacktop: generic_get_stacktop()\n");
+	fprintf(fp, "      translate_pte: riscv64_translate_pte()\n");
+	fprintf(fp, "        memory_size: generic_memory_size()\n");
+	fprintf(fp, "      vmalloc_start: riscv64_vmalloc_start()\n");
+	fprintf(fp, "       is_task_addr: riscv64_is_task_addr()\n");
+	fprintf(fp, "      verify_symbol: riscv64_verify_symbol()\n");
+	fprintf(fp, "         dis_filter: generic_dis_filter()\n");
+	fprintf(fp, "           dump_irq: generic_dump_irq()\n");
+	fprintf(fp, "    show_interrupts: generic_show_interrupts()\n");
+	fprintf(fp, "   get_irq_affinity: generic_get_irq_affinity()\n");
+	fprintf(fp, "           cmd_mach: riscv64_cmd_mach()\n");
+	fprintf(fp, "       get_smp_cpus: riscv64_get_smp_cpus()\n");
+	fprintf(fp, "          is_kvaddr: riscv64_is_kvaddr()\n");
+	fprintf(fp, "          is_uvaddr: riscv64_is_uvaddr()\n");
+	fprintf(fp, "       verify_paddr: generic_verify_paddr()\n");
+	fprintf(fp, "    init_kernel_pgd: NULL\n");
+	fprintf(fp, "    value_to_symbol: generic_machdep_value_to_symbol()\n");
+	fprintf(fp, "  line_number_hooks: NULL\n");
+	fprintf(fp, "      last_pgd_read: %lx\n", machdep->last_pgd_read);
+	fprintf(fp, "      last_p4d_read: %lx\n", machdep->machspec->last_p4d_read);
+	fprintf(fp, "      last_pud_read: %lx\n", machdep->last_pud_read);
+	fprintf(fp, "      last_pmd_read: %lx\n", machdep->last_pmd_read);
+	fprintf(fp, "     last_ptbl_read: %lx\n", machdep->last_ptbl_read);
+	fprintf(fp, "                pgd: %lx\n", (ulong)machdep->pgd);
+	fprintf(fp, "                p4d: %lx\n", (ulong)machdep->machspec->p4d);
+	fprintf(fp, "                pud: %lx\n", (ulong)machdep->pud);
+	fprintf(fp, "                pmd: %lx\n", (ulong)machdep->pmd);
+	fprintf(fp, "               ptbl: %lx\n", (ulong)machdep->ptbl);
+	fprintf(fp, "  section_size_bits: %ld\n", machdep->section_size_bits);
+	fprintf(fp, "   max_physmem_bits: %ld\n", machdep->max_physmem_bits);
+	fprintf(fp, "  sections_per_root: %ld\n", machdep->sections_per_root);
+	fprintf(fp, "           machspec: %lx\n", (ulong)machdep->machspec);
 }
 
 static ulong
-- 
2.17.1

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