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Peter Anvin" Subject: [PATCH 2/2] x86/mtrr: make message for disabled MTRRs more descriptive Date: Mon, 5 Dec 2022 09:04:33 +0100 Message-Id: <20221205080433.16643-3-jgross@suse.com> X-Mailer: git-send-email 2.35.3 In-Reply-To: <20221205080433.16643-1-jgross@suse.com> References: <20221205080433.16643-1-jgross@suse.com> MIME-Version: 1.0 X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED,SPF_HELO_NONE, SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1751360698472546887?= X-GMAIL-MSGID: =?utf-8?q?1751360698472546887?= Instead of just saying "Disabled" when MTRRs are disabled for any reason, tell what is disabled and why. Signed-off-by: Juergen Gross Acked-by: Kirill A. Shutemov --- arch/x86/kernel/cpu/mtrr/mtrr.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) 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); } /**