[DOCS] Update for new Xen boot parameters.

Signed-off-by: Keir Fraser <keir@xensource.com>

diff --git a/docs/src/user.tex b/docs/src/user.tex
index 2528861a23e4add1f8c049aad4e23576ef17cfff..f71231d44ca839f2279664b689b90873f512cc5c 100644 (file)
--- a/docs/src/user.tex
+++ b/docs/src/user.tex
@@ -3240,6 +3240,11 @@ editing \path{grub.conf}.
   enabled by the BIOS.
 \item [ apic=bigsmp,default,es7000,summit ] Specify NUMA platform.
   This can usually be probed automatically.
+\item [ dma\_bits=xxx ] Specify width of DMA
+  addresses in bits. Default is 30 bits (addresses up to 1GB are DMAable).
+\item [ dma\_emergency\_pool=xxx ] Specify lower bound on size of DMA
+  pool below which ordinary allocations will fail rather than fall
+  back to allocating from the DMA pool.
 \end{description}
 
 In addition, the following options may be specified on the Xen command