Message ID | 20200717144831.309167-1-sjg@chromium.org |
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Headers | show
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[73.14.175.90]) by smtp.gmail.com with ESMTPSA id u15sm4437845iog.18.2020.07.17.07.48.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 17 Jul 2020 07:48:34 -0700 (PDT) From: Simon Glass <sjg@chromium.org> To: U-Boot Mailing List <u-boot@lists.denx.de> Cc: Bin Meng <bmeng.cn@gmail.com>, Wolfgang Wallner <wolfgang.wallner@br-automation.com>, Andy Shevchenko <andriy.shevchenko@linux.intel.com>, Simon Glass <sjg@chromium.org> Subject: [PATCH v6 00/25] x86: Enhance MTRR functionality to support multiple CPUs Date: Fri, 17 Jul 2020 08:48:06 -0600 Message-Id: <20200717144831.309167-1-sjg@chromium.org> X-Mailer: git-send-email 2.28.0.rc0.105.gf9edc3c819-goog MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.34 Precedence: list List-Id: U-Boot discussion <u-boot.lists.denx.de> List-Unsubscribe: <https://lists.denx.de/options/u-boot>, <mailto:u-boot-request@lists.denx.de?subject=unsubscribe> List-Archive: <https://lists.denx.de/pipermail/u-boot/> List-Post: <mailto:u-boot@lists.denx.de> List-Help: <mailto:u-boot-request@lists.denx.de?subject=help> List-Subscribe: <https://lists.denx.de/listinfo/u-boot>, <mailto:u-boot-request@lists.denx.de?subject=subscribe> Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" <u-boot-bounces@lists.denx.de> X-Virus-Scanned: clamav-milter 0.102.3 at phobos.denx.de X-Virus-Status: Clean |
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x86: Enhance MTRR functionality to support multiple CPUs
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On Fri, Jul 17, 2020 at 10:48 PM Simon Glass <sjg@chromium.org> wrote: > > At present MTRRs are mirrored to the secondary CPUs only once, as those > CPUs are started up. But U-Boot may add more MTRRs later, e.g. if it > decides that a video console must be set up. > > This series enhances the x86 multi-processor support to allow MTRRs to > be updated at any time. It also updates the 'mtrr' command to support > setting the MTRRs on CPUs other than the boot CPU. > > Changes in v6: > - Rebase to x86/master > > Changes in v5: > - Drop timing in mp_park_aps() > series applied to u-boot-x86, thanks!