Re: [PATCH for-10.1] target/arm/kvm: Drop support for kernels without KVM_ARM_PREFERRED_TARGET

[Richard Henderson <richard.henderson@linaro.org>]

On 3/18/25 04:42, Peter Maydell wrote:
> Our KVM code includes backwards compatibility support for ancient
> kernels which don't support the KVM_ARM_PREFERRED_TARGET ioctl.  This
> ioctl was introduced in kernel commit 42c4e0c77ac91 in September
> 2013 and is in v3.12, so it's reasonable to assume it's present.
> 
> (We already dropped support for kernels without KVM_CAP_DEVICE_CTRL,
> a feature added to the kernel in April 2013, in our commit
> 84f298ea3e; so there are only about six months' worth of kernels,
> from v3.9 to v3.11, that we don't already fail to run on and that
> this commit is dropping handling for.)
> 
> Signed-off-by: Peter Maydell<peter.maydell@linaro.org>
> ---
>   target/arm/kvm_arm.h      |  7 +----
>   target/arm/arm-qmp-cmds.c |  2 +-
>   target/arm/kvm.c          | 55 ++++++---------------------------------
>   3 files changed, 10 insertions(+), 54 deletions(-)

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

r~