linux-kernel - [PATCH v2 01/22] arm64: Make the CPU information more clear

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <1444064531-25607-2-git-send-email-suzuki.poulose@arm.com>
Date:	Mon,  5 Oct 2015 18:01:50 +0100
From:	"Suzuki K. Poulose" <suzuki.poulose@....com>
To:	linux-arm-kernel@...ts.infradead.org
Cc:	marc.zyngier@....com, will.deacon@....com, mark.rutland@....com,
	catalin.marinas@....com, steve.capper@...aro.org,
	linux-kernel@...r.kernel.org, andre.przywara@....com,
	dave.martin@....com, Vladimir.Murzin@....com, james.morse@....com,
	ard.biesheuvel@...aro.org, edward.nevill@...aro.org,
	aph@...hat.com, "Suzuki K. Poulose" <suzuki.poulose@....com>
Subject: [PATCH v2 01/22] arm64: Make the CPU information more clear

At early boot, we print the CPU version/revision. On a heterogeneous
system, we could have different types of CPUs. Print the CPU info for
all active cpus.

Also, remove the redundant 'revision' information which doesn't
make any sense without the 'variant' field.

Signed-off-by: Suzuki K. Poulose <suzuki.poulose@....com>
---
 arch/arm64/kernel/setup.c |    3 +--
 arch/arm64/kernel/smp.c   |    3 ++-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c
index 6bab21f..60fc9a9 100644
--- a/arch/arm64/kernel/setup.c
+++ b/arch/arm64/kernel/setup.c
@@ -202,8 +202,7 @@ static void __init setup_processor(void)
 	u32 cwg;
 	int cls;
 
-	printk("CPU: AArch64 Processor [%08x] revision %d\n",
-	       read_cpuid_id(), read_cpuid_id() & 15);
+	pr_info("Boot CPU: AArch64 Processor [%08x]\n", read_cpuid_id());
 
 	sprintf(init_utsname()->machine, ELF_PLATFORM);
 	elf_hwcap = 0;
diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c
index dbdaacd..641f529 100644
--- a/arch/arm64/kernel/smp.c
+++ b/arch/arm64/kernel/smp.c
@@ -145,7 +145,8 @@ asmlinkage void secondary_start_kernel(void)
 	cpumask_set_cpu(cpu, mm_cpumask(mm));
 
 	set_my_cpu_offset(per_cpu_offset(smp_processor_id()));
-	printk("CPU%u: Booted secondary processor\n", cpu);
+	pr_info("CPU%u: Booted secondary processor [%08x]\n",
+					 cpu, read_cpuid_id());
 
 	/*
 	 * TTBR0 is only used for the identity mapping at this stage. Make it
-- 
1.7.9.5

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/