Currently, 'mach' command displays only basic system properties for RISC-V-based vmcores. This commit enhances the mach command by adding additional system details, including virtual memory addresses, IRQ stacks, and overflow stacks. (before) crash> mach MACHINE TYPE: riscv64 MEMORY SIZE: 4 GB CPUS: 4 PROCESSOR SPEED: (unknown) HZ: 100 PAGE SIZE: 4096 KERNEL STACK SIZE: 16384 (after) crash> mach MACHINE TYPE: riscv64 MEMORY SIZE: 4 GB CPUS: 4 PROCESSOR SPEED: (unknown) HZ: 100 PAGE SIZE: 4096 KERNEL VIRTUAL BASE: ffffffd800000000 KERNEL MODULES BASE: ffffffff01d08000 KERNEL VMALLOC BASE: ffffffc800000000 KERNEL VMEMMAP BASE: ffffffc700000000 KERNEL STACK SIZE: 16384 IRQ STACK SIZE: 16384 IRQ STACKS: CPU 0: ffffffc800000000 CPU 1: ffffffc800008000 CPU 2: ffffffc800010000 CPU 3: ffffffc800018000 OVERFLOW STACK SIZE: 4096 OVERFLOW STACKS: CPU 0: ffffffd8fc7433c0 CPU 1: ffffffd8fc75f3c0 CPU 2: ffffffd8fc77b3c0 CPU 3: ffffffd8fc7973c0 Signed-off-by: Austin Kim <austindh.kim(a)gmail.com&gt; --- riscv64.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) diff --git a/riscv64.c b/riscv64.c index 98bf02a..d934b22 100644 --- a/riscv64.c +++ b/riscv64.c @@ -135,6 +135,7 @@ static void riscv64_get_struct_page_size(struct machine_specific *ms) static void riscv64_display_machine_stats(void) { + int i, pad; struct new_utsname *uts; char buf[BUFSIZE]; ulong mhz; @@ -151,7 +152,31 @@ riscv64_display_machine_stats(void) fprintf(fp, "(unknown)\n"); fprintf(fp, " HZ: %d\n", machdep->hz); fprintf(fp, " PAGE SIZE: %d\n", PAGESIZE()); + fprintf(fp, "KERNEL VIRTUAL BASE: %lx\n", machdep->machspec->page_offset); + fprintf(fp, "KERNEL MODULES BASE: %lx\n", machdep->machspec->modules_vaddr); + fprintf(fp, "KERNEL VMALLOC BASE: %lx\n", machdep->machspec->vmalloc_start_addr); + fprintf(fp, "KERNEL VMEMMAP BASE: %lx\n", machdep->machspec->vmemmap_vaddr); fprintf(fp, " KERNEL STACK SIZE: %ld\n", STACKSIZE()); + if (machdep->machspec->irq_stack_size) { + fprintf(fp, " IRQ STACK SIZE: %ld\n", + machdep->machspec->irq_stack_size); + fprintf(fp, " IRQ STACKS:\n"); + for (i = 0; i < kt->cpus; i++) { + pad = (i < 10) ? 3 : (i < 100) ? 2 : (i < 1000) ? 1 : 0; + fprintf(fp, "%s CPU %d: %lx\n", space(pad), i, + machdep->machspec->irq_stacks[i]); + } + } + if (machdep->machspec->overflow_stack_size) { + fprintf(fp, "OVERFLOW STACK SIZE: %ld\n", + machdep->machspec->overflow_stack_size); + fprintf(fp, " OVERFLOW STACKS:\n"); + for (i = 0; i < kt->cpus; i++) { + pad = (i < 10) ? 3 : (i < 100) ? 2 : (i < 1000) ? 1 : 0; + fprintf(fp, "%s CPU %d: %lx\n", space(pad), i, + machdep->machspec->overflow_stacks[i]); + } + } } static void -- 2.34.1