In the simplest case, "runqemu qemux86 <some-image> qcow2 ovmf" for an EFI-enabled image in the qcow2 format will locate the OVMF firmware file, override the graphics hardware with "-vga std" because that is all that OVMF supports, and boot with UEFI enabled. This depends on "bitbake ovmf" deploying a "ovmf.qcow2" firmware file in the image deploy directory.
The firmware file is activated as a flash drive instead of using the qemu BIOS parameters, because that is the recommended method (https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=764918#47) as it allows storing UEFI variables in the file. Instead of just "ovmf", a full path to an existing file can also be used, just as with the rootfs. That may be useful when making a permanent copy of the virtual machine data files. Signed-off-by: Patrick Ohly <patrick.o...@intel.com> --- scripts/runqemu | 37 ++++++++++++++++++++++++++++++++++++- 1 file changed, 36 insertions(+), 1 deletion(-) diff --git a/scripts/runqemu b/scripts/runqemu index 203992a..257dcec 100755 --- a/scripts/runqemu +++ b/scripts/runqemu @@ -74,6 +74,7 @@ of the following environment variables (in any order): kvm-vhost - enable KVM with vhost when running x86/x86_64 (VT-capable CPU required) publicvnc - enable a VNC server open to all hosts audio - enable audio + [*/]ovmf* - OVMF BIOS file or base name for booting with UEFI tcpserial=<port> - specify tcp serial port number biosdir=<dir> - specify custom bios dir biosfilename=<filename> - specify bios filename @@ -162,6 +163,12 @@ class BaseConfig(object): self.clean_nfs_dir = False self.nfs_server = '' self.rootfs = '' + # File name of a OVMF BIOS file, to be added with -drive if=pflash. + # Found in the same places as the rootfs, with or without one of + # these suffices: qcow2, bin. + # Setting one also adds "-vga std" because that is all that + # OVMF supports. + self.ovmf_bios = '' self.qemuboot = '' self.qbconfload = False self.kernel = '' @@ -369,6 +376,8 @@ class BaseConfig(object): self.qemu_opt_script += ' %s' % arg[len('qemuparams='):] elif arg.startswith('bootparams='): self.kernel_cmdline_script += ' %s' % arg[len('bootparams='):] + elif os.path.basename(arg).startswith('ovmf'): + self.ovmf_bios = arg elif os.path.exists(arg) or (re.search(':', arg) and re.search('/', arg)): self.check_arg_path(os.path.abspath(arg)) elif re.search('-image-', arg): @@ -472,6 +481,20 @@ class BaseConfig(object): if not os.path.exists(self.rootfs): raise Exception("Can't find rootfs: %s" % self.rootfs) + def check_ovmf(self): + """Check and set full path for OVMF BIOS file.""" + + if self.ovmf_bios is None or os.path.exists(self.ovmf_bios): + return + + for suffix in ('qcow2', 'bin'): + ovmf_bios = '%s/%s.%s' % (self.get('DEPLOY_DIR_IMAGE'), self.ovmf_bios, suffix) + if os.path.exists(ovmf_bios): + self.ovmf_bios = ovmf_bios + return + + raise Exception("Can't find OVMF BIOS: %s" % self.ovmf_bios) + def check_kernel(self): """Check and set kernel, dtb""" # The vm image doesn't need a kernel @@ -562,6 +585,7 @@ class BaseConfig(object): self.check_kvm() self.check_fstype() self.check_rootfs() + self.check_ovmf() self.check_kernel() self.check_biosdir() self.check_mem() @@ -670,6 +694,8 @@ class BaseConfig(object): print('NFS_DIR: [%s]' % self.nfs_dir) else: print('ROOTFS: [%s]' % self.rootfs) + if self.ovmf_bios: + print('OVMF: [%s]' % self.ovmf_bios) print('CONFFILE: [%s]' % self.qemuboot) print('') @@ -926,7 +952,16 @@ class BaseConfig(object): check_libgl(qemu_bin) - self.qemu_opt = "%s %s %s %s %s" % (qemu_bin, self.get('NETWORK_CMD'), self.get('ROOTFS_OPTIONS'), self.get('QB_OPT_APPEND'), self.qemu_opt_script) + self.qemu_opt = "%s %s %s %s" % (qemu_bin, self.get('NETWORK_CMD'), self.get('ROOTFS_OPTIONS'), self.get('QB_OPT_APPEND')) + + if self.ovmf_bios: + format = self.ovmf_bios.rsplit('.', 1)[-1] + self.qemu_opt += ' -drive if=pflash,format=%s,file=%s' % (format, self.ovmf_bios) + # OVMF only supports normal VGA, i.e. we need to override a -vga vmware + # that gets added for example for normal qemux86. + self.qemu_opt += ' -vga std' + + self.qemu_opt += ' ' + self.qemu_opt_script if self.snapshot: self.qemu_opt += " -snapshot" -- 2.1.4 -- _______________________________________________ Openembedded-core mailing list Openembedded-core@lists.openembedded.org http://lists.openembedded.org/mailman/listinfo/openembedded-core
