Changes in chapter10/kernel.xml [58962f7:f976691]

File:

• chapter10/kernel.xml (modified) (7 diffs)

chapter10/kernel.xml

@@ -142 +142 @@
    [*]   Strong Stack Protector [CONFIG_STACKPROTECTOR_STRONG]
 Device Drivers  --->
-  Firmware Drivers   --->
-   EFI (Extensible Firmware Interface) Support  --->
-     [*] Enable the generic EFI decompressor [CONFIG_EFI_ZBOOT]
   Graphics support --->
    Frame buffer Devices --->
@@ -167 +164 @@
    [*] Control Group support [CONFIG_CGROUPS]   --->
       [*] Memory controller [CONFIG_MEMCG]
-   [ ] Enable deprecated sysfs features to support old userspace tools [CONFIG_SYSFS_DEPRECATED]
    [ ] Configure standard kernel features (expert users) [CONFIG_EXPERT]
 General architecture-dependent options  --->
@@ -186 +182 @@
    Firmware Drivers   --->
       [*] Export DMI identification via sysfs to userspace [CONFIG_DMIID]
-      EFI (Extensible Firmware Interface) Support  --->
-         [*] Enable the generic EFI decompressor [CONFIG_EFI_ZBOOT]
    Graphics support --->
       Frame buffer Devices --->
@@ -198 +192 @@
         [*] Tmpfs POSIX Access Control Lists [CONFIG_TMPFS_POSIX_ACL]</screen>
 
+      <para>Enable some additional features if you are building a 64-bit
+      system.  If you are using menuconfig, enable them in the order of
+      <parameter>CONFIG_PCI_MSI</parameter> first, then
+      <parameter>CONFIG_IRQ_REMAP</parameter>, at last
+      <parameter>CONFIG_X86_X2APIC</parameter> because an option only
+      shows up after its dependencies are selected.</para>
+
+      <screen role="nodump">Processor type and features ---&gt;
+  [*] Support x2apic [CONFIG_X86_X2APIC]
+Device Drivers ---&gt;
+  [*] PCI Support ---&gt; [CONFIG_PCI]
+    [*] Message Signaled Interrupts (MSI and MSI-X) [CONFIG_PCI_MSI]
+  [*] IOMMU Hardware Support ---&gt; [CONFIG_IOMMU_SUPPORT]
+    [*] Support for Interrupt Remapping [CONFIG_IRQ_REMAP]</screen>
+
+      <para>If you are building a 32-bit system running on a hardware
+      with RAM more than 4GB, adjust the configuration so the kernel will
+      be able to use up to 64GB physical RAM:</para>
+
+      <screen role="nodump">Processor type and features ---&gt;
+  High Memory Support ---&gt;
+    (X) 64GB [CONFIG_HIGHMEM64G]</screen>
+
       <para>If the partition for the LFS system is in a NVME SSD (i. e. the
       device node for the partition is <filename>/dev/nvme*</filename>
@@ -310 +327 @@
           upon switching to root filesystem just before starting
           init.</para>
-        </listitem>
-      </varlistentry>
-
-      <varlistentry>
-        <term><parameter>Enable the generic EFI decompressor</parameter></term>
-        <listitem>
-          <para>Create the bootable image as an EFI application that carries
-          the actual kernel image in compressed form.  It can make the
-          bootable image 50% smaller.</para>
         </listitem>
       </varlistentry>
@@ -336 +344 @@
       </varlistentry>
 
+      <varlistentry>
+        <term><parameter>Support x2apic</parameter></term>
+        <listitem>
+          <para>Support running the interrupt controller of 64-bit x86
+          processors in x2APIC mode.  x2APIC may be enabled by firmware on
+          64-bit x86 systems, and a kernel without this option enabled will
+          panic on boot if x2APIC is enabled by firmware.  This option has
+          has no effect, but also does no harm if x2APIC is disabled by the
+          firmware.</para>
+        </listitem>
+      </varlistentry>
+
     </variablelist>
 
@@ -390 +410 @@
     the filename should be <emphasis>vmlinuz</emphasis> to be compatible with
     the automatic setup of the boot process described in the next section.  The
-    following command assumes a LoongArch platform with an EFI boot loader
-    (for example, GRUB built in &ch-final;):</para>
-
-<screen><userinput remap="install">cp -iv arch/loongarch/boot/vmlinuz.efi /boot/vmlinuz-&linux-version;-lfs-&version;</userinput></screen>
+    following command assumes an x86 architecture:</para>
+
+<screen><userinput remap="install">cp -iv arch/x86/boot/bzImage /boot/vmlinuz-&linux-version;-lfs-&version;</userinput></screen>
 
     <para><filename>System.map</filename> is a symbol file for the kernel.