Re: [PATCH v4 2/2] target/loongarch: Implement lbt registers save/restore function

[maobibo]

On 2024/9/9 下午9:13, gaosong wrote:
> 在 2024/9/9 下午7:52, gaosong 写道:
> > 在 2024/9/4 下午2:18, Bibo Mao 写道:
> > > Six registers scr0 - scr3, eflags and ftop are added in percpu vmstate.
> > > And two functions kvm_loongarch_get_lbt/kvm_loongarch_put_lbt are added
> > > to save/restore lbt registers.
> > >
> > > Signed-off-by: Bibo Mao <maobibo@loongson.cn>
> > > ---
> > >   target/loongarch/cpu.h     | 12 ++++++++
> > >   target/loongarch/kvm/kvm.c | 60 ++++++++++++++++++++++++++++++++++++++
> > >   target/loongarch/machine.c | 24 +++++++++++++++
> > >   3 files changed, 96 insertions(+)
> >
> > Reviewed-by: Song Gao <gaosong@loongson.cn>
> >
> > Thanks
> > Song Gao
> Hi,  this patch need rebase.
>
> Applying: target/loongarch: Implement lbt registers save/restore function
> error: sha1 information is lacking or useless (target/loongarch/kvm/kvm.c).
> error: could not build fake ancestor
> Patch failed at 0001 target/loongarch: Implement lbt registers 
> save/restore function

Hi Song,

It can apply with the latest qemu version on my side, only that it fails 
to compile since kvm uapi header files need be updated.

LBT patch on qemu side can be skipped here since it depends on LBT patch 
merged on kernel side firstly.

Regards
Bibo Mao
> Thanks.
> Song Gao.