[PATCH v2 0/4] Move alloc/free_vcpu_struct() to common code

[Oleksii Kurochko <oleksii.kurochko@xxxxxxxxx>]

As it was suggested in [1] it would be better to allocate one page for struct
vcpu for all arch-es. To do that it is needed to align Arm code to allocate
one page (as there is a case(when CONFIG_NEW_VGIC=y) when Arm64 will require
to allocate two pages). As a result, the following patches for Arm have been
introduced:
 - [PATCH v2 1/4] xen/arm: optimize the size of struct vcpu
 - [PATCH v2 2/4] xen/arm: drop MAX_PAGES_PER_VCPU

This patches are dependency for:
 - [PATCH v2 3/4] xen: move alloc/free_vcpu_struct() to common code

Also, as a part of this patch series another clean up is done which makes
{alloc,free}_domain_struct() static.

[1] 
https://lore.kernel.org/xen-devel/f8a9be3a-a0c6-496a-806f-40760dca5aee@xxxxxxxx/T/#m275dfcbdccef0461fa9a8acef072403f18091768

---
Changes in v2:
 - Introduce new patches for Arm:
     - [PATCH v2 1/4] xen/arm: optimize the size of struct vcpu
     - [PATCH v2 2/4] xen/arm: drop MAX_PAGES_PER_VCPU
    to allocate one page for struct vcpu in common code for all the arch-es.
 - Introduce patch to clean up xen/domain.h a little bit:
     - [PATCH v2 4/4] xen/common: make {alloc,free}_domain_struct() static
 - Address the comments from v1:
     - [PATCH v2 3/4] xen: move alloc/free_vcpu_struct() to common code
---

Oleksii Kurochko (4):
  xen/arm: optimize the size of struct vcpu
  xen/arm: drop MAX_PAGES_PER_VCPU
  xen: move alloc/free_vcpu_struct() to common code
  xen/common: make {alloc,free}_domain_struct() static

 xen/arch/arm/domain.c             | 32 --------------
 xen/arch/arm/gic-vgic.c           | 48 ++++++++++-----------
 xen/arch/arm/include/asm/domain.h |  2 +-
 xen/arch/arm/vgic-v3.c            | 34 +++++++--------
 xen/arch/arm/vgic.c               | 72 +++++++++++++++++--------------
 xen/arch/arm/vgic/vgic-init.c     | 10 ++++-
 xen/arch/arm/vgic/vgic-v2.c       |  4 +-
 xen/arch/arm/vgic/vgic.c          | 50 ++++++++++-----------
 xen/arch/ppc/stubs.c              | 10 -----
 xen/arch/riscv/stubs.c            | 10 -----
 xen/arch/x86/domain.c             | 17 +-------
 xen/arch/x86/include/asm/domain.h |  3 ++
 xen/common/domain.c               | 26 ++++++++++-
 xen/include/xen/domain.h          |  8 ----
 14 files changed, 145 insertions(+), 181 deletions(-)

-- 
2.52.0