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[v2,0/5] spapr: Fix and cleanups for sPAPR CPU core

Message ID 160279669833.1808373.9524145092720289601.stgit@bahia.lan (mailing list archive)
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Series spapr: Fix and cleanups for sPAPR CPU core | expand

Message

Greg Kurz Oct. 15, 2020, 9:18 p.m. UTC
While reading the code _again_ I spotted a memory leak and I realized
that the realize/unrealize paths are uselessly complex and not really
symmetrical.

This series fixes the leak and re-shuffles the code to make it cleaner.

Tested with 'make check', travis-ci and manual hotplug/unplug of CPU
cores. Also tested error paths by simulating failures when creating
interrupt presenters or when setting the vCPU id.

v2: - enforce symmetry between realize and unrealize
    - unrealize vCPUs with qdev_unrealize()
    - one loop to create/realize and to unrealize/delete vCPUs

---

Greg Kurz (5):
      spapr: Fix leak of CPU machine specific data
      spapr: Unrealize vCPUs with qdev_unrealize()
      spapr: Drop spapr_delete_vcpu() unused argument
      spapr: Make spapr_cpu_core_unrealize() idempotent
      spapr: Simplify spapr_cpu_core_realize() and spapr_cpu_core_unrealize()


 accel/tcg/user-exec-stub.c      |    4 ++
 hw/ppc/spapr_cpu_core.c         |   69 ++++++++++++++++++---------------------
 target/ppc/translate_init.c.inc |    2 +
 3 files changed, 37 insertions(+), 38 deletions(-)

--
Greg

Comments

David Gibson Oct. 22, 2020, 4:02 a.m. UTC | #1
On Thu, Oct 15, 2020 at 11:18:18PM +0200, Greg Kurz wrote:
> While reading the code _again_ I spotted a memory leak and I realized
> that the realize/unrealize paths are uselessly complex and not really
> symmetrical.
> 
> This series fixes the leak and re-shuffles the code to make it cleaner.
> 
> Tested with 'make check', travis-ci and manual hotplug/unplug of CPU
> cores. Also tested error paths by simulating failures when creating
> interrupt presenters or when setting the vCPU id.
> 
> v2: - enforce symmetry between realize and unrealize
>     - unrealize vCPUs with qdev_unrealize()
>     - one loop to create/realize and to unrealize/delete vCPUs

Applied to ppc-for-5.2.

> 
> ---
> 
> Greg Kurz (5):
>       spapr: Fix leak of CPU machine specific data
>       spapr: Unrealize vCPUs with qdev_unrealize()
>       spapr: Drop spapr_delete_vcpu() unused argument
>       spapr: Make spapr_cpu_core_unrealize() idempotent
>       spapr: Simplify spapr_cpu_core_realize() and spapr_cpu_core_unrealize()
> 
> 
>  accel/tcg/user-exec-stub.c      |    4 ++
>  hw/ppc/spapr_cpu_core.c         |   69 ++++++++++++++++++---------------------
>  target/ppc/translate_init.c.inc |    2 +
>  3 files changed, 37 insertions(+), 38 deletions(-)
>