x86/boot/e820: Improve e820_print_type() messages

For E820_TYPE_RESERVED, print:

  'reserved'  -> 'device reserved'

For E820_TYPE_PRAM and E820_TYPE_PMEM:

  'persistent' -> 'persistent RAM'

Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Andy Shevchenko <andy@kernel.org>
Cc: Arnd Bergmann <arnd@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Juergen Gross <jgross@suse.com>
Cc: "H . Peter Anvin" <hpa@zytor.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Paul Menzel <pmenzel@molgen.mpg.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: David Woodhouse <dwmw@amazon.co.uk>
Link: https://patch.msgid.link/20250515120549.2820541-14-mingo@kernel.org

diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c
index 0316a186b42be4b0a985f54b83837daf0c14b4ef..0c3f12fcf2b14896472f8740637399fbd6cdd9bb 100644 (file)
--- a/arch/x86/kernel/e820.c
+++ b/arch/x86/kernel/e820.c
@@ -188,15 +188,15 @@ void __init e820__range_add(u64 start, u64 size, enum e820_type type)
 static void __init e820_print_type(enum e820_type type)
 {
        switch (type) {
-       case E820_TYPE_RAM:             pr_cont(" System RAM");                 break;
-       case E820_TYPE_RESERVED:        pr_cont(" reserved");                   break;
-       case E820_TYPE_SOFT_RESERVED:   pr_cont(" soft reserved");              break;
-       case E820_TYPE_ACPI:            pr_cont(" ACPI data");                  break;
-       case E820_TYPE_NVS:             pr_cont(" ACPI NVS");                   break;
-       case E820_TYPE_UNUSABLE:        pr_cont(" unusable");                   break;
+       case E820_TYPE_RAM:             pr_cont(" System RAM");                         break;
+       case E820_TYPE_RESERVED:        pr_cont(" device reserved");                    break;
+       case E820_TYPE_SOFT_RESERVED:   pr_cont(" soft reserved");                      break;
+       case E820_TYPE_ACPI:            pr_cont(" ACPI data");                          break;
+       case E820_TYPE_NVS:             pr_cont(" ACPI NVS");                           break;
+       case E820_TYPE_UNUSABLE:        pr_cont(" unusable");                           break;
        case E820_TYPE_PMEM:            /* Fall through: */
-       case E820_TYPE_PRAM:            pr_cont(" persistent (type %u)", type); break;
-       default:                        pr_cont(" type %u", type);              break;
+       case E820_TYPE_PRAM:            pr_cont(" persistent RAM (type %u)", type);     break;
+       default:                        pr_cont(" type %u", type);                      break;
        }
 }