Merge remote-tracking branch 'jc_docs/docs-next'

[deliverable/linux.git] / Documentation / kernel-parameters.txt

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 861f57514fbdddd7fbbefe5b24c4d5280a4cc2f1..73191f4fe5b6a41b9bee5ff08b336feea1f36817 100644 (file)
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -460,6 +460,15 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
                        driver will print ACPI tables for AMD IOMMU during
                        IOMMU initialization.
 
+       amd_iommu_intr= [HW,X86-64]
+                       Specifies one of the following AMD IOMMU interrupt
+                       remapping modes:
+                       legacy     - Use legacy interrupt remapping mode.
+                       vapic      - Use virtual APIC mode, which allows IOMMU
+                                    to inject interrupts directly into guest.
+                                    This mode requires kvm-amd.avic=1.
+                                    (Default when IOMMU HW support is present.)
+
        amijoy.map=     [HW,JOY] Amiga joystick support
                        Map of devices attached to JOY0DAT and JOY1DAT
                        Format: <a>,<b>
@@ -3036,6 +3045,10 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
                                PAGE_SIZE is used as alignment.
                                PCI-PCI bridge can be specified, if resource
                                windows need to be expanded.
+                               To specify the alignment for several
+                               instances of a device, the PCI vendor,
+                               device, subvendor, and subdevice may be
+                               specified, e.g., 4096@pci:8086:9c22:103c:198f
                ecrc=           Enable/disable PCIe ECRC (transaction layer
                                end-to-end CRC checking).
                                bios: Use BIOS/firmware settings. This is the
@@ -3249,6 +3262,11 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
        raid=           [HW,RAID]
                        See Documentation/md.txt.
 
+       ram_latent_entropy
+                       Enable a very simple form of latent entropy extraction
+                       from the first 4GB of memory as the bootmem allocator
+                       passes the memory pages to the buddy allocator.
+
        ramdisk_size=   [RAM] Sizes of RAM disks in kilobytes
                        See Documentation/blockdev/ramdisk.txt.