Re: [PATCH 0/5] i386: simplify Hyper-V enlightenments enablement

[Vitaly Kuznetsov]

Claudio Fontana <cfontana@suse.de> writes:

> Hi Vitaly, I just wanted to raise awareness of
>
> https://lists.gnu.org/archive/html/qemu-devel/2020-11/msg04597.html
>
> because if that series work is completed, you would have already the
> right hook to put your code in, when it comes to your hyperv-specific
> code for the realizefn.

Hi Claudio,

thanks for letting me know! I'll take a look but at first glance it
would just be a code movement. Hope your series gets merged soon, at
least before my bug 'i386: KVM: expand Hyper-V features early"' is
coming (will be submitting it after 5.11-rc1 kernel upstream) so we
minimize the code churn.

>
> Ciao ciao,
>
> Claudio
>
> On 11/19/20 11:32 AM, Vitaly Kuznetsov wrote:
>> This series is a part of the previously sent "[PATCH RFC v3 00/23] i386:
>> KVM: expand Hyper-V features early":
>> https://lists.gnu.org/archive/html/qemu-devel/2020-10/msg02443.html
>> 
>> We're not ready to merge the full patch set yet because the required
>> KVM capability is only queued for 5.11. We can, however, extract the
>> part providing 'hyperv=on' option to x86 machine types which is valuable
>> on its own. Picking up four other patches from the original RFC to
>> minimize the code churn in future (x86_cpu_realizefn()).
>> 
>> Changes since RFCv3:
>> - Rename 'hyperv_features' to 'default_hyperv_features' in X86MachineClass
>>   [Eduardo]
>> - Move x86_cpu_hyperv_realize() invocation after x86_cpu_expand_features()/
>>   x86_cpu_filter_features() as we need to reference cpu_has_vmx().
>> 
>> Vitaly Kuznetsov (5):
>>   i386: move hyperv_vendor_id initialization to x86_cpu_realizefn()
>>   i386: move hyperv_interface_id initialization to x86_cpu_realizefn()
>>   i386: move hyperv_version_id initialization to x86_cpu_realizefn()
>>   i386: move hyperv_limits initialization to x86_cpu_realizefn()
>>   i386: provide simple 'hyperv=on' option to x86 machine types
>> 
>>  docs/hyperv.txt       |  8 +++++
>>  hw/i386/x86.c         | 30 +++++++++++++++++++
>>  include/hw/i386/x86.h |  7 +++++
>>  target/i386/cpu.c     | 52 +++++++++++++++++++++++++++++++-
>>  target/i386/cpu.h     |  6 +++-
>>  target/i386/kvm.c     | 70 ++++++++++++++++++++++++++++---------------
>>  6 files changed, 147 insertions(+), 26 deletions(-)
>> 
>

-- 
Vitaly