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[2/2] x86/mtrr: make message for disabled MTRRs more descriptive

Message ID 20221205080433.16643-3-jgross@suse.com
State New
Headers
Series x86: fixes for MTRR/PAT decoupling |

Commit Message

Juergen Gross Dec. 5, 2022, 8:04 a.m. UTC 
  Instead of just saying "Disabled" when MTRRs are disabled for any
reason, tell what is disabled and why.

Signed-off-by: Juergen Gross <jgross@suse.com>
---
 arch/x86/kernel/cpu/mtrr/mtrr.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

Comments

Kirill A. Shutemov Dec. 5, 2022, 12:26 p.m. UTC | #1 
On Mon, Dec 05, 2022 at 09:04:33AM +0100, Juergen Gross wrote:
> Instead of just saying "Disabled" when MTRRs are disabled for any
> reason, tell what is disabled and why.
> 
> Signed-off-by: Juergen Gross <jgross@suse.com>

Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
diff mbox series

Patch

diff --git a/arch/x86/kernel/cpu/mtrr/mtrr.c b/arch/x86/kernel/cpu/mtrr/mtrr.c
index 6432abccbf56..94d5739758ba 100644
--- a/arch/x86/kernel/cpu/mtrr/mtrr.c
+++ b/arch/x86/kernel/cpu/mtrr/mtrr.c
@@ -630,6 +630,7 @@  int __initdata changed_by_mtrr_cleanup;
 void __init mtrr_bp_init(void)
 {
 	u32 phys_addr;
+	const char *why = "(not available)";
 
 	phys_addr = 32;
 
@@ -705,12 +706,13 @@  void __init mtrr_bp_init(void)
 				changed_by_mtrr_cleanup = mtrr_cleanup(phys_addr);
 			} else {
 				mtrr_if = NULL;
+				why = "by BIOS";
 			}
 		}
 	}
 
 	if (!mtrr_enabled())
-		pr_info("Disabled\n");
+		pr_info("MTRRs disabled %s\n", why);
 }
 
 /**