Messages in this thread Patch in this message | | | From | Terry Bowman <> | Subject | [PATCH 3/3] tools/x86/kcpuid: Dump the CPUID function in detailed view | Date | Mon, 6 Feb 2023 08:18:32 -0600 |
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From: "Borislav Petkov (AMD)" <bp@alien8.de>
Sometimes it is useful to know which CPUID leaf contains the fields so add it to -d output so that it looks like this:
CPUID_0x8000001e_ECX[0x0]: extended_apic_id : 0x8 - Extended APIC ID core_id : 0x4 - Identifies the logical core ID threads_per_core : 0x1 - The number of threads per core is threads_per_core + 1 node_id : 0x0 - Node ID nodes_per_processor : 0x0 - Nodes per processor { 0: 1 node, else reserved }
CPUID_0x8000001f_ECX[0x0]: sme - Secure Memory Encryption
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Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de> Signed-off-by: Terry Bowman <terry.bowman@amd.com> --- tools/arch/x86/kcpuid/kcpuid.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/tools/arch/x86/kcpuid/kcpuid.c b/tools/arch/x86/kcpuid/kcpuid.c index dae75511fef7..3bab3398cec3 100644 --- a/tools/arch/x86/kcpuid/kcpuid.c +++ b/tools/arch/x86/kcpuid/kcpuid.c @@ -468,13 +468,21 @@ static void show_leaf(struct subleaf *leaf) if (!leaf) return; - if (show_raw) + if (show_raw) { leaf_print_raw(leaf); + } else { + if (show_details) + printf("CPUID_0x%x_ECX[0x%x]:\n", + leaf->index, leaf->sub); + } decode_bits(leaf->eax, &leaf->info[R_EAX]); decode_bits(leaf->ebx, &leaf->info[R_EBX]); decode_bits(leaf->ecx, &leaf->info[R_ECX]); decode_bits(leaf->edx, &leaf->info[R_EDX]); + + if (!show_raw && show_details) + printf("\n"); } static void show_func(struct cpuid_func *func) -- 2.34.1
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