KVM support in 4.4.202 Debian-Desktop seems to be missing for Pinebook Pro

[DoktorCranium]

Hi,

checked the latest kernel 4.4.202 for Debian-Desktop on the Pinebook Pro today
Testing qemu-system-aarch64 -cpu host -M virt,accel=kvm bails: No accelerator found

[mrfixit2001]

That may be because you're trying to use aarch64? Did you setup multiarch? The debian desktop release has a 64-bit kernel with a 32-bit userspace. So it can run both architectures, but 64-bit isn't enabled out of the box. You'll have to set it up.

Just for reference, here's an excerpt of the relevant kernel's config after compile:
...
CONFIG_HAVE_KVM_IRQFD=y
CONFIG_HAVE_KVM_EVENTFD=y
CONFIG_KVM_MMIO=y
CONFIG_HAVE_KVM_CPU_RELAX_INTERCEPT=y
CONFIG_KVM_VFIO=y
CONFIG_HAVE_KVM_ARCH_TLB_FLUSH_ALL=y
CONFIG_KVM_GENERIC_DIRTYLOG_READ_PROTECT=y
CONFIG_KVM_COMPAT=y
CONFIG_VIRTUALIZATION=y
CONFIG_KVM_ARM_VGIC_V3=y
CONFIG_KVM=y
CONFIG_KVM_ARM_HOST=y
...

If there are any other configs you'd like me to enable in the future, please let me know :)

[DoktorCranium]

So I can use KVM only for qemu-system-arm ? not for aarch64 on the Debian-Desktop in the default setup ?

…

On Sun, Dec 1, 2019 at 3:53 AM mrfixit2001 ***@***.***> wrote: That may be because you're trying to use aarch64? Did you setup multiarch? The debian desktop release has a 64-bit kernel with a 32-bit userspace. So it can run both architectures, but 64-bit isn't enabled out of the box. You'll have to set it up. Just for reference, here's an excerpt of the relevant kernel's config after compile: ... CONFIG_HAVE_KVM_IRQFD=y CONFIG_HAVE_KVM_EVENTFD=y CONFIG_KVM_MMIO=y CONFIG_HAVE_KVM_CPU_RELAX_INTERCEPT=y CONFIG_KVM_VFIO=y CONFIG_HAVE_KVM_ARCH_TLB_FLUSH_ALL=y CONFIG_KVM_GENERIC_DIRTYLOG_READ_PROTECT=y CONFIG_KVM_COMPAT=y CONFIG_VIRTUALIZATION=y CONFIG_KVM_ARM_VGIC_V3=y CONFIG_KVM=y CONFIG_KVM_ARM_HOST=y ... If there are any other configs you'd like me to enable in the future, please let me know :) — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#2?email_source=notifications&email_token=AFYTCKGGUX26LIUMYKCN4GTQWMRLTA5CNFSM4JTCFQUKYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOEFQZUCQ#issuecomment-560044554>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AFYTCKAIYPSTHOO6NTCDSOTQWMRLTANCNFSM4JTCFQUA> .