Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64...
[linux-2.6-microblaze.git] / Documentation / admin-guide / kernel-parameters.txt
index 309e68a..82c9321 100644 (file)
                        feature (tagged TLBs) on capable Intel chips.
                        Default is 1 (enabled)
 
+       l1d_flush=      [X86,INTEL]
+                       Control mitigation for L1D based snooping vulnerability.
+
+                       Certain CPUs are vulnerable to an exploit against CPU
+                       internal buffers which can forward information to a
+                       disclosure gadget under certain conditions.
+
+                       In vulnerable processors, the speculatively
+                       forwarded data can be used in a cache side channel
+                       attack, to access data to which the attacker does
+                       not have direct access.
+
+                       This parameter controls the mitigation. The
+                       options are:
+
+                       on         - enable the interface for the mitigation
+
        l1tf=           [X86] Control mitigation of the L1TF vulnerability on
                              affected CPUs
 
 
        reboot=         [KNL]
                        Format (x86 or x86_64):
-                               [w[arm] | c[old] | h[ard] | s[oft] | g[pio]] \
+                               [w[arm] | c[old] | h[ard] | s[oft] | g[pio]] | d[efault] \
                                [[,]s[mp]#### \
                                [[,]b[ios] | a[cpi] | k[bd] | t[riple] | e[fi] | p[ci]] \
                                [[,]f[orce]
        sa1100ir        [NET]
                        See drivers/net/irda/sa1100_ir.c.
 
-       sbni=           [NET] Granch SBNI12 leased line adapter
-
        sched_verbose   [KNL] Enables verbose scheduler debug messages.
 
        schedstats=     [KNL,X86] Enable or disable scheduled statistics.