Hello Valentin,
On 1/14/2025 11:21 PM, Valentin Schneider wrote:
[..snip..]
diff --git a/include/linux/context_tracking_work.h
b/include/linux/context_tracking_work.h
index c68245f8d77c5..931ade1dcbcc2 100644
--- a/include/linux/context_tracking_work.h
+++ b/include/linux/context_tracking_work.
On 17/01/25 09:15, Sean Christopherson wrote:
> On Fri, Jan 17, 2025, Valentin Schneider wrote:
>> On 14/01/25 13:13, Sean Christopherson wrote:
>> > On Tue, Jan 14, 2025, Valentin Schneider wrote:
>> >> +/**
>> >> + * is_kernel_noinstr_text - checks if the pointer address is located in
>> >> the
On Fri, Jan 17, 2025, Valentin Schneider wrote:
> On 14/01/25 13:13, Sean Christopherson wrote:
> > On Tue, Jan 14, 2025, Valentin Schneider wrote:
> >> +/**
> >> + * is_kernel_noinstr_text - checks if the pointer address is located in
> >> the
> >> + *.noinstr section
> >> + *
On 14/01/25 13:48, Sean Christopherson wrote:
> On Tue, Jan 14, 2025, Sean Christopherson wrote:
>> On Tue, Jan 14, 2025, Valentin Schneider wrote:
>> > +/**
>> > + * is_kernel_noinstr_text - checks if the pointer address is located in
>> > the
>> > + *.noinstr section
>> > + *
On 14/01/25 13:13, Sean Christopherson wrote:
> On Tue, Jan 14, 2025, Valentin Schneider wrote:
>> text_poke_bp_batch() sends IPIs to all online CPUs to synchronize
>> them vs the newly patched instruction. CPUs that are executing in userspace
>> do not need this synchronization to happen immediate
On Tue, Jan 14, 2025, Sean Christopherson wrote:
> On Tue, Jan 14, 2025, Valentin Schneider wrote:
> > +/**
> > + * is_kernel_noinstr_text - checks if the pointer address is located in the
> > + *.noinstr section
> > + *
> > + * @addr: address to check
> > + *
> > + * Returns: t
On Tue, Jan 14, 2025, Valentin Schneider wrote:
> static __always_inline void arch_context_tracking_work(enum ct_work work)
> {
> switch (work) {
> - case CT_WORK_n:
> - // Do work...
> + case CT_WORK_SYNC:
> + sync_core();
Not your bug, but serialize() need
On Tue, Jan 14, 2025, Valentin Schneider wrote:
> text_poke_bp_batch() sends IPIs to all online CPUs to synchronize
> them vs the newly patched instruction. CPUs that are executing in userspace
> do not need this synchronization to happen immediately, and this is
> actually harmful interference for
