[v2] xen/x86: Change stub page freeing to fix smt=0

[PATCH v2 0/3] xen/x86: Change stub page freeing to fix smt=0

Jason Andryuk posted 3 patches 3 days, 7 hours ago

Diff against v1
Download series mbox

Patches applied successfully (tree, apply log)
git fetch https://gitlab.com/xen-project/patchew/xen tags/patchew/20260604231837.804560-1-jason.andryuk@amd.com

xen/arch/x86/include/asm/mm.h |  1 +
xen/arch/x86/smpboot.c        | 32 ++++++++++++++++++++------------
xen/arch/x86/x86_64/mm.c      | 31 +++++++++++++++++++++----------
3 files changed, 42 insertions(+), 22 deletions(-)

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[PATCH v2 0/3] xen/x86: Change stub page freeing to fix smt=0

Posted by Jason Andryuk 3 days, 7 hours ago

This is a different approach to fixing the stub page handling that is
broken with !CONFIG_PV and smt=0.

Jason Andryuk (3):
  xen/x86: Remove unneeded stub_page setting
  xen/x86: Split out page_walk_mfn() helper
  xen/x86: Change stub page allocation/free logic

 xen/arch/x86/include/asm/mm.h |  1 +
 xen/arch/x86/smpboot.c        | 32 ++++++++++++++++++++------------
 xen/arch/x86/x86_64/mm.c      | 31 +++++++++++++++++++++----------
 3 files changed, 42 insertions(+), 22 deletions(-)

-- 
2.54.0

Re: [PATCH v2 0/3] xen/x86: Change stub page freeing to fix smt=0

Posted by Roger Pau Monné 2 days, 23 hours ago

You want to Cc Oleksii for those, as we would like to get them into
4.22.  I've added him to the cover letter so he is aware.

Regards, Roger.

On Thu, Jun 04, 2026 at 07:18:34PM -0400, Jason Andryuk wrote:
> This is a different approach to fixing the stub page handling that is
> broken with !CONFIG_PV and smt=0.
> 
> Jason Andryuk (3):
>   xen/x86: Remove unneeded stub_page setting
>   xen/x86: Split out page_walk_mfn() helper
>   xen/x86: Change stub page allocation/free logic
> 
>  xen/arch/x86/include/asm/mm.h |  1 +
>  xen/arch/x86/smpboot.c        | 32 ++++++++++++++++++++------------
>  xen/arch/x86/x86_64/mm.c      | 31 +++++++++++++++++++++----------
>  3 files changed, 42 insertions(+), 22 deletions(-)
> 
> -- 
> 2.54.0
>