[v2,0/2] xen/swiotlb: two fixes

Message

Juergen Gross Feb. 13, 2025, 8:55 a.m. UTC

Patch 1 removes an unneeded alignment requirement, which resulted in
exhausting the SWIOTLB with normal use cases.

Patch 2 allows to allocate larger continuous regions by reallocating
the frame list if needed.

Changes in V2:
- drop former patch 2 for now in order to avoid more lengthy discussion
- new patch 2

Juergen Gross (2):
  xen/swiotlb: relax alignment requirements
  x86/xen: allow larger contiguous memory regions in PV guests

 arch/x86/xen/mmu_pv.c     | 71 ++++++++++++++++++++++++++++++++++-----
 drivers/xen/swiotlb-xen.c | 20 ++++++-----
 2 files changed, 74 insertions(+), 17 deletions(-)