This is pure refactoring, no change to functionality. --- v2v/convert_linux.ml | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/v2v/convert_linux.ml b/v2v/convert_linux.ml index 50e013a3a..c768902cc 100644 --- a/v2v/convert_linux.ml +++ b/v2v/convert_linux.ml @@ -424,9 +424,6 @@ let rec convert (g : G.guestfs) inspect source output rcaps = if best_kernel <> List.hd bootloader_kernels then bootloader#set_default_kernel best_kernel.ki_vmlinuz; - (* Does the best/bootable kernel support virtio? *) - let virtio = best_kernel.ki_supports_virtio in - (* Update /etc/sysconfig/kernel DEFAULTKERNEL (RHBZ#1176801). *) if g#is_file ~followsymlinks:true "/etc/sysconfig/kernel" then ( let entries = @@ -438,7 +435,7 @@ let rec convert (g : G.guestfs) inspect source output rcaps = ) ); - best_kernel, virtio + best_kernel (* Even though the kernel was already installed (this version of * virt-v2v does not install new kernels), it could have an @@ -1004,7 +1001,8 @@ let rec convert (g : G.guestfs) inspect source output rcaps = unconfigure_kudzu (); unconfigure_prltools (); - let kernel, virtio = configure_kernel () in + let kernel = configure_kernel () in + let virtio = kernel.ki_supports_virtio in if output#keep_serial_console then ( configure_console (); -- 2.12.0

On Wed, Apr 05, 2017 at 03:40:28PM +0100, Richard W.M. Jones wrote: This patch is wrong. Every recent distro kernel is detected as a Xen kernel, because they all ship this driver. I think the existing test probably only worked by accident because the "xennet" driver was renamed, so the test accidentally failed to detect any recent kernel. Back to the drawing board on this one ... Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming and virtualization blog: http://rwmj.wordpress.com virt-p2v converts physical machines to virtual machines. Boot with a live CD or over the network (PXE) and turn machines into KVM guests. http://libguestfs.org/virt-v2v

Extend the guestcaps structure so it records whether a guest supports (or drivers were added) for virtio-rng, the virtio memory balloon, and the ISA pvpanic device. --- v2v/convert_linux.ml | 3 +++ v2v/convert_windows.ml | 6 +++++- v2v/linux_kernels.ml | 12 ++++++++++++ v2v/linux_kernels.mli | 3 +++ v2v/types.ml | 3 +++ v2v/types.mli | 4 ++++ v2v/windows_virtio.ml | 10 ++++++++-- v2v/windows_virtio.mli | 5 +++-- 8 files changed, 41 insertions(+), 5 deletions(-) diff --git a/v2v/convert_linux.ml b/v2v/convert_linux.ml index 77270a629..cff132a7a 100644 --- a/v2v/convert_linux.ml +++ b/v2v/convert_linux.ml @@ -1043,6 +1043,9 @@ let rec convert (g : G.guestfs) inspect source output rcaps = gcaps_block_bus = block_type; gcaps_net_bus = net_type; gcaps_video = video; + gcaps_virtio_rng = kernel.ki_supports_virtio_rng; + gcaps_virtio_balloon = kernel.ki_supports_virtio_balloon; + gcaps_isa_pvpanic = kernel.ki_supports_isa_pvpanic; gcaps_arch = Utils.kvm_arch inspect.i_arch; gcaps_acpi = acpi; } in diff --git a/v2v/convert_windows.ml b/v2v/convert_windows.ml index 4fe671fab..dfb90d079 100644 --- a/v2v/convert_windows.ml +++ b/v2v/convert_windows.ml @@ -600,7 +600,8 @@ if errorlevel 3010 exit /b 0 configure_firstboot (); (* Open the system hive for writes and update it. *) - let block_driver, net_driver, video_driver = + let block_driver, net_driver, video_driver, + virtio_rng_supported, virtio_ballon_supported, isa_pvpanic_supported = Registry.with_hive_write g inspect.i_windows_system_hive update_system_hive in @@ -628,6 +629,9 @@ if errorlevel 3010 exit /b 0 gcaps_block_bus = block_driver; gcaps_net_bus = net_driver; gcaps_video = video_driver; + gcaps_virtio_rng = virtio_rng_supported; + gcaps_virtio_balloon = virtio_ballon_supported; + gcaps_isa_pvpanic = isa_pvpanic_supported; gcaps_arch = Utils.kvm_arch inspect.i_arch; gcaps_acpi = true; } in diff --git a/v2v/linux_kernels.ml b/v2v/linux_kernels.ml index 7a253fa04..2debab637 100644 --- a/v2v/linux_kernels.ml +++ b/v2v/linux_kernels.ml @@ -40,6 +40,9 @@ type kernel_info = { ki_modules : string list; ki_supports_virtio_blk : bool; ki_supports_virtio_net : bool; + ki_supports_virtio_rng : bool; + ki_supports_virtio_balloon : bool; + ki_supports_isa_pvpanic : bool; ki_is_xen_kernel : bool; ki_is_debug : bool; ki_config_file : string option; @@ -187,6 +190,12 @@ let detect_kernels (g : G.guestfs) inspect family bootloader = = kernel_supports "virtio_blk" "VIRTIO_BLK" in let supports_virtio_net = kernel_supports "virtio_net" "VIRTIO_NET" in + let supports_virtio_rng + = kernel_supports "virtio-rng" "HW_RANDOM_VIRTIO" in + let supports_virtio_balloon + = kernel_supports "virtio_balloon" "VIRTIO_BALLOON" in + let supports_isa_pvpanic + = kernel_supports "pvpanic" "PVPANIC" in let is_xen_kernel = kernel_supports "xennet" "XEN_NETDEV_FRONTEND" in @@ -209,6 +218,9 @@ let detect_kernels (g : G.guestfs) inspect family bootloader = ki_modules = modules; ki_supports_virtio_blk = supports_virtio_blk; ki_supports_virtio_net = supports_virtio_net; + ki_supports_virtio_rng = supports_virtio_rng; + ki_supports_virtio_balloon = supports_virtio_balloon; + ki_supports_isa_pvpanic = supports_isa_pvpanic; ki_is_xen_kernel = is_xen_kernel; ki_is_debug = is_debug; ki_config_file = config_file; diff --git a/v2v/linux_kernels.mli b/v2v/linux_kernels.mli index 85ef0ee95..c48be0cd5 100644 --- a/v2v/linux_kernels.mli +++ b/v2v/linux_kernels.mli @@ -30,6 +30,9 @@ type kernel_info = { ki_modules : string list; (** The list of module names. *) ki_supports_virtio_blk : bool; (** Kernel supports virtio-blk? *) ki_supports_virtio_net : bool; (** Kernel supports virtio-net? *) + ki_supports_virtio_rng : bool; (** Kernel supports virtio-rng? *) + ki_supports_virtio_balloon : bool; (** Kernel supports memory balloon? *) + ki_supports_isa_pvpanic : bool; (** Kernel supports ISA pvpanic device? *) ki_is_xen_kernel : bool; (** Is a Xen paravirt kernel? *) ki_is_debug : bool; (** Is debug kernel? *) ki_config_file : string option; (** Path of config file, if found. *) diff --git a/v2v/types.ml b/v2v/types.ml index 31cbbd2a8..a46c90439 100644 --- a/v2v/types.ml +++ b/v2v/types.ml @@ -396,6 +396,9 @@ type guestcaps = { gcaps_block_bus : guestcaps_block_type; gcaps_net_bus : guestcaps_net_type; gcaps_video : guestcaps_video_type; + gcaps_virtio_rng : bool; + gcaps_virtio_balloon : bool; + gcaps_isa_pvpanic : bool; gcaps_arch : string; gcaps_acpi : bool; } diff --git a/v2v/types.mli b/v2v/types.mli index c902b7abf..ca3697694 100644 --- a/v2v/types.mli +++ b/v2v/types.mli @@ -264,6 +264,10 @@ type guestcaps = { installing drivers). Thus this is not known until after conversion. *) + gcaps_virtio_rng : bool; (** Guest supports virtio-rng. *) + gcaps_virtio_balloon : bool; (** Guest supports virtio balloon. *) + gcaps_isa_pvpanic : bool; (** Guest supports ISA pvpanic device. *) + gcaps_arch : string; (** Architecture that KVM must emulate. *) gcaps_acpi : bool; (** True if guest supports acpi. *) } diff --git a/v2v/windows_virtio.ml b/v2v/windows_virtio.ml index 965d6ac8b..84a16e34e 100644 --- a/v2v/windows_virtio.ml +++ b/v2v/windows_virtio.ml @@ -61,7 +61,7 @@ let rec install_drivers ((g, _) as reg) inspect rcaps = match net_type with | Some model -> model | None -> RTL8139 in - (IDE, net_type, Cirrus) + (IDE, net_type, Cirrus, false, false, false) ) else ( (* Can we install the block driver? *) @@ -165,7 +165,13 @@ let rec install_drivers ((g, _) as reg) inspect rcaps = | Some Cirrus, _ -> Cirrus in - (block, net, video) + (* Did we install the miscellaneous drivers? *) + let virtio_rng_supported = g#exists (driverdir // "viorng.inf") in + let virtio_ballon_supported = g#exists (driverdir // "balloon.inf") in + let isa_pvpanic_supported = g#exists (driverdir // "pvpanic.inf") in + + (block, net, video, + virtio_rng_supported, virtio_ballon_supported, isa_pvpanic_supported) ) and add_guestor_to_registry ((g, root) as reg) inspect drv_name drv_pciid = diff --git a/v2v/windows_virtio.mli b/v2v/windows_virtio.mli index 0bc6faaa2..166e9ecfa 100644 --- a/v2v/windows_virtio.mli +++ b/v2v/windows_virtio.mli @@ -20,7 +20,7 @@ val install_drivers : Registry.t -> Types.inspect -> Types.requested_guestcaps -> - Types.guestcaps_block_type * Types.guestcaps_net_type * Types.guestcaps_video_type + Types.guestcaps_block_type * Types.guestcaps_net_type * Types.guestcaps_video_type * bool * bool * bool (** [install_drivers reg inspect rcaps] installs virtio drivers from the driver directory or driver ISO into the guest driver directory and updates the registry @@ -34,7 +34,8 @@ val install_drivers install_drivers will adjust its choices based on that information, and abort if the requested driver wasn't found. - This returns the tuple [(block_driver, net_driver, video_driver)] + This returns the tuple [(block_driver, net_driver, video_driver, + virtio_rng_supported, virtio_ballon_supported, isa_pvpanic_supported)] reflecting what devices are now required by the guest, either virtio devices if we managed to install those, or legacy devices if we didn't. *) -- 2.12.0

Only virtio-rng is supported at the time. --- v2v/output_glance.ml | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/v2v/output_glance.ml b/v2v/output_glance.ml index 04a284337..b712d6801 100644 --- a/v2v/output_glance.ml +++ b/v2v/output_glance.ml @@ -138,6 +138,11 @@ object | x, 0 -> push_back properties ("os_version", string_of_int x) | x, y -> push_back properties ("os_version", sprintf "%d.%d" x y) ); + if guestcaps.gcaps_virtio_rng then + push_back properties ("hw_rng_model", "virtio"); + (* XXX Neither memory balloon nor pvpanic are supported by + * Glance at this time. + *) let properties = List.flatten ( -- 2.12.0

The exploded tree has many missing drivers (eg. virtio-rng). The ISO contains the complete set, so prefer it. --- v2v/virt-v2v.pod | 34 +++++++++++++++++++++++++--------- v2v/windows_virtio.ml | 4 +++- 2 files changed, 28 insertions(+), 10 deletions(-) diff --git a/v2v/virt-v2v.pod b/v2v/virt-v2v.pod index 5d6628d65..ff6e020a6 100644 --- a/v2v/virt-v2v.pod +++ b/v2v/virt-v2v.pod @@ -607,10 +607,10 @@ the named root device does not exist or was not detected as a root device, then virt-v2v will fail. Note that there is a bug in grub which prevents it from successfully -booting a multiboot system if VirtIO is enabled. Grub is only able to -boot an operating system from the first VirtIO disk. Specifically, -F</boot> must be on the first VirtIO disk, and it cannot chainload an -OS which is not in the first VirtIO disk. +booting a multiboot system if virtio is enabled. Grub is only able to +boot an operating system from the first virtio disk. Specifically, +F</boot> must be on the first virtio disk, and it cannot chainload an +OS which is not in the first virtio disk. =item B<--vdsm-compat=0.10> @@ -766,9 +766,8 @@ below. Ubuntu 10.04+ All versions support virtio - Windows Drivers are installed from the directory pointed to by - "VIRTIO_WIN" environment variable - (/usr/share/virtio-win by default) if present + Windows Drivers are installed from the ISO or directory pointed + to by "VIRTIO_WIN" environment variable if present =head1 RHEL 4 @@ -2014,8 +2013,25 @@ distributed with virt-v2v. =item C<VIRTIO_WIN> -This is where VirtIO drivers for Windows are searched for -(F</usr/share/virtio-win> if unset). It can be a directory I<or> +This is where virtio drivers for Windows are searched for. + +If unset, then we look for drivers in whichever of these paths +is found first: + +=over 4 + +=item F</usr/share/virtio-win/virtio-win.iso> + +The ISO containing virtio drivers for Windows. + +=item F</usr/share/virtio-win> + +The exploded tree of virtio drivers for Windows. This is +usually incomplete, hence the ISO is preferred. + +=back + +(F<> if unset). It can be a directory I<or> point to F<virtio-win.iso> (CD ROM image containing drivers). See L<ENABLING VIRTIO>. diff --git a/v2v/windows_virtio.ml b/v2v/windows_virtio.ml index 84a16e34e..6c9708c03 100644 --- a/v2v/windows_virtio.ml +++ b/v2v/windows_virtio.ml @@ -31,7 +31,9 @@ let virtio_win = with Not_found -> try Sys.getenv "VIRTIO_WIN_DIR" (* old name for VIRTIO_WIN *) with Not_found -> - Guestfs_config.datadir // "virtio-win" + let iso = Guestfs_config.datadir // "virtio-win" // "virtio-win.iso" in + if Sys.file_exists iso then iso + else Guestfs_config.datadir // "virtio-win" let scsi_class_guid = "{4D36E97B-E325-11CE-BFC1-08002BE10318}" let viostor_pciid = "VEN_1AF4&DEV_1001&SUBSYS_00021AF4&REV_00" -- 2.12.0