nbd/client: Add meta contexts to nbd_receive_export_list()

[thirdparty/qemu.git] / qemu-doc.texi

diff --git a/qemu-doc.texi b/qemu-doc.texi
index 7bd449f3984ba26c7a4d100ba8928761fe7fcc60..16b955cbf9852e8b7ec7ac31e4f6ea7af58a7d23 100644 (file)
--- a/qemu-doc.texi
+++ b/qemu-doc.texi
@@ -37,6 +37,7 @@
 * QEMU System emulator for non PC targets::
 * QEMU Guest Agent::
 * QEMU User space emulator::
+* System requirements::
 * Implementation notes::
 * Deprecated features::
 * Supported build platforms::
@@ -943,7 +944,7 @@ for details
 Bulk-only transport storage device, see
 @url{https://git.qemu.org/?p=qemu.git;a=blob_plain;f=docs/usb-storage.txt,usb-storage.txt}
 for details here, too
-@item usb-mtp,x-root=@var{dir}
+@item usb-mtp,rootdir=@var{dir}
 Media transfer protocol device, using @var{dir} as root of the file tree
 that is presented to the guest.
 @item usb-host,hostbus=@var{bus},hostaddr=@var{addr}
@@ -2813,6 +2814,18 @@ Act as if the host page size was 'pagesize' bytes
 Run the emulation in single step mode.
 @end table
 
+@node System requirements
+@chapter System requirements
+
+@section KVM kernel module
+
+On x86_64 hosts, the default set of CPU features enabled by the KVM accelerator
+require the host to be running Linux v4.5 or newer.
+
+The OpteronG[345] CPU models require KVM support for RDTSCP, which was
+added with Linux 4.5 which is supported by the major distros. And even
+if RHEL7 has kernel 3.10, KVM there has the required functionality there
+to make it close to a 4.5 or newer kernel.
 
 @include qemu-tech.texi