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* [Bug 1914748] [NEW] Confuse error message when KVM can not start requested CPU
@ 2021-02-05 10:21 Philippe Mathieu-Daudé
  2021-02-05 10:29 ` [Bug 1914748] " Alex Bennée
  2021-05-09 15:48 ` Philippe Mathieu-Daudé
  0 siblings, 2 replies; 3+ messages in thread
From: Philippe Mathieu-Daudé @ 2021-02-05 10:21 UTC (permalink / raw)
  To: qemu-devel

Public bug reported:

As of commit 1ba089f2255, on Cavium CN8890 (ThunderX cores):

$ qemu-system-aarch64 -display none -accel kvm -M virt,gic-version=3 -accel kvm -cpu cortex-a57 --trace \*kvm_vcpu\*      
kvm_vcpu_ioctl cpu_index 0, type 0x4020aeae, arg 0xffff9b7f9b18 
qemu-system-aarch64: kvm_init_vcpu: kvm_arch_init_vcpu failed (0): Invalid argument

(same using "-cpu cortex-a53" or cortex-a72).

Explanation from Peter Maydell on IRC:
> using a specific cpu type will only work with KVM if the host CPU really is that
> exact CPU type, otherwise, use "-cpu host" or "-cpu max"

Having a better error description would help to understand the reason.

** Affects: qemu
     Importance: Undecided
         Status: New


** Tags: arm ui

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https://bugs.launchpad.net/bugs/1914748

Title:
  Confuse error message when KVM can not start requested CPU

Status in QEMU:
  New

Bug description:
  As of commit 1ba089f2255, on Cavium CN8890 (ThunderX cores):

  $ qemu-system-aarch64 -display none -accel kvm -M virt,gic-version=3 -accel kvm -cpu cortex-a57 --trace \*kvm_vcpu\*      
  kvm_vcpu_ioctl cpu_index 0, type 0x4020aeae, arg 0xffff9b7f9b18 
  qemu-system-aarch64: kvm_init_vcpu: kvm_arch_init_vcpu failed (0): Invalid argument

  (same using "-cpu cortex-a53" or cortex-a72).

  Explanation from Peter Maydell on IRC:
  > using a specific cpu type will only work with KVM if the host CPU really is that
  > exact CPU type, otherwise, use "-cpu host" or "-cpu max"

  Having a better error description would help to understand the reason.

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1914748/+subscriptions


^ permalink raw reply	[flat|nested] 3+ messages in thread

* [Bug 1914748] Re: Confuse error message when KVM can not start requested CPU
  2021-02-05 10:21 [Bug 1914748] [NEW] Confuse error message when KVM can not start requested CPU Philippe Mathieu-Daudé
@ 2021-02-05 10:29 ` Alex Bennée
  2021-05-09 15:48 ` Philippe Mathieu-Daudé
  1 sibling, 0 replies; 3+ messages in thread
From: Alex Bennée @ 2021-02-05 10:29 UTC (permalink / raw)
  To: qemu-devel

** Tags added: ui

-- 
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1914748

Title:
  Confuse error message when KVM can not start requested CPU

Status in QEMU:
  New

Bug description:
  As of commit 1ba089f2255, on Cavium CN8890 (ThunderX cores):

  $ qemu-system-aarch64 -display none -accel kvm -M virt,gic-version=3 -accel kvm -cpu cortex-a57 --trace \*kvm_vcpu\*      
  kvm_vcpu_ioctl cpu_index 0, type 0x4020aeae, arg 0xffff9b7f9b18 
  qemu-system-aarch64: kvm_init_vcpu: kvm_arch_init_vcpu failed (0): Invalid argument

  (same using "-cpu cortex-a53" or cortex-a72).

  Explanation from Peter Maydell on IRC:
  > using a specific cpu type will only work with KVM if the host CPU really is that
  > exact CPU type, otherwise, use "-cpu host" or "-cpu max"

  Having a better error description would help to understand the reason.

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1914748/+subscriptions


^ permalink raw reply	[flat|nested] 3+ messages in thread

* [Bug 1914748] Re: Confuse error message when KVM can not start requested CPU
  2021-02-05 10:21 [Bug 1914748] [NEW] Confuse error message when KVM can not start requested CPU Philippe Mathieu-Daudé
  2021-02-05 10:29 ` [Bug 1914748] " Alex Bennée
@ 2021-05-09 15:48 ` Philippe Mathieu-Daudé
  1 sibling, 0 replies; 3+ messages in thread
From: Philippe Mathieu-Daudé @ 2021-05-09 15:48 UTC (permalink / raw)
  To: qemu-devel

This is an automated cleanup. This bug report has been moved to QEMU's
new bug tracker on gitlab.com and thus gets marked as 'invalid' now.
Please continue with the discussion here:

 https://gitlab.com/qemu-project/qemu/-/issues/239


** Changed in: qemu
       Status: New => Invalid

** Bug watch added: gitlab.com/qemu-project/qemu/-/issues #239
   https://gitlab.com/qemu-project/qemu/-/issues/239

-- 
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1914748

Title:
  Confuse error message when KVM can not start requested CPU

Status in QEMU:
  Invalid

Bug description:
  As of commit 1ba089f2255, on Cavium CN8890 (ThunderX cores):

  $ qemu-system-aarch64 -display none -accel kvm -M virt,gic-version=3 -accel kvm -cpu cortex-a57 --trace \*kvm_vcpu\*      
  kvm_vcpu_ioctl cpu_index 0, type 0x4020aeae, arg 0xffff9b7f9b18 
  qemu-system-aarch64: kvm_init_vcpu: kvm_arch_init_vcpu failed (0): Invalid argument

  (same using "-cpu cortex-a53" or cortex-a72).

  Explanation from Peter Maydell on IRC:
  > using a specific cpu type will only work with KVM if the host CPU really is that
  > exact CPU type, otherwise, use "-cpu host" or "-cpu max"

  Having a better error description would help to understand the reason.

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1914748/+subscriptions


^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2021-05-09 15:56 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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2021-02-05 10:21 [Bug 1914748] [NEW] Confuse error message when KVM can not start requested CPU Philippe Mathieu-Daudé
2021-02-05 10:29 ` [Bug 1914748] " Alex Bennée
2021-05-09 15:48 ` Philippe Mathieu-Daudé

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