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pmb.qemu: add --no-kvm to disable KVM even when available (!1886)

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To test QEMU's CPU emulation it is useful to have a switch to disable
KVM, even when it is available (and potentially working fine).

Add --no-kvm for that purpose.
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Minecrell 2020-03-10 16:06:56 +01:00 • committed by Oliver Smith
parent 903491f518
commit 76dcf8aa0b
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2 changed files with 5 additions and 1 deletions
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4
pmb/parse/arguments.py
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@ -123,6 +123,10 @@ def arguments_qemu(subparser):
ret.add_argument("--flavor", help="name of the kernel flavor (run 'pmbootstrap flasher list_flavors'" ret.add_argument("--flavor", help="name of the kernel flavor (run 'pmbootstrap flasher list_flavors'"
" to get a list of all installed flavors") " to get a list of all installed flavors")
ret.add_argument("--no-kvm", dest="qemu_kvm", default=True, action='store_false',
help="Avoid using hardware-assisted virtualization with KVM "
"even when available (SLOW!)")
ret.add_argument("--tablet", dest="qemu_tablet", action='store_true', ret.add_argument("--tablet", dest="qemu_tablet", action='store_true',
default=False, help="Use 'tablet' instead of 'mouse' input " default=False, help="Use 'tablet' instead of 'mouse' input "
"for QEMU. The tablet input device automatically grabs/releases " "for QEMU. The tablet input device automatically grabs/releases "

2
pmb/qemu/run.py
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@ -144,7 +144,7 @@ def command_qemu(args, arch, img_path):
# Kernel Virtual Machine (KVM) support # Kernel Virtual Machine (KVM) support
native = args.arch_native == args.deviceinfo["arch"] native = args.arch_native == args.deviceinfo["arch"]
if native and os.path.exists("/dev/kvm"): if args.qemu_kvm and native and os.path.exists("/dev/kvm"):
command += ["-enable-kvm"] command += ["-enable-kvm"]
else: else:
logging.info("WARNING: QEMU is not using KVM and will run slower!") logging.info("WARNING: QEMU is not using KVM and will run slower!")