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arm64: remove x86_64 specific x2apic kernel features

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Xi Ruoyao 2022-08-26 17:53:26 +08:00
parent 3d13efb7cd
commit 2f098e4344
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1 changed files with 4 additions and 27 deletions
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31
chapter10/kernel.xml
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@ -150,22 +150,11 @@ File systems --->
Pseudo filesystems --->
[*] 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>
<para>Disable a feature which is security compromised in this kernel
release:</para>
<screen role="nodump">Processor type and features ---&gt;
[*] Support x2apic [CONFIG_X86_X2APIC]
Memory Management options ---&gt;
[ ] Enable userfaultfd() system call [CONFIG_USERFAULTFD]
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>
<screen role="nodump">Memory Management options ---&gt;
[ ] Enable userfaultfd() system call [CONFIG_USERFAULTFD]</screen>
</note>
<note revision="systemd">
@ -242,18 +231,6 @@ Device Drivers ---&gt;
</listitem>
</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>
<varlistentry>
<term><parameter>Enable userfaultfd() system call</parameter></term>
<listitem>