[Xen-devel] [PATCH v6 0/3] Set SMMU s2 input-size based on p2m tables

["Edgar E. Iglesias" <edgar.iglesias@xxxxxxxxx>]

From: "Edgar E. Iglesias" <edgar.iglesias@xxxxxxxxxx>

Hi,

This is a fix for the issue I'm seeing on ZynqMP with missmatched
setup of the SMMU and the shared p2m page-tables with the CPU.

This implements a global p2m_ipa_bits cap for S2 input-size as
discussed in the previous RFC.

Best regards,
Edgar

Changelog:
v5 -> v6:
* Remove const from ARM32 to fix the build.
* Reuse p2m_ipa_bits in info print

v4 -> v5:
* Make p2m_ipa_bits __read_mostly.
* Make p2m_ipa_bits const for ARM32.

v3 -> v4:
* Replace ASSERT on supported IPA sizes with returnig error.
* Remove redundant 'addresses' after IPA.

v2 -> v3:
* pfn -> ipa.
* Fix typos in commit msg for 3/3.

v1 -> v2:
* Use a global pfn bitsize instead of a per-domain one.

Edgar E. Iglesias (3):
  xen/arm: Re-order iommu_setup to after setup_virt_paging
  xen/arm: Add p2m_ipa_bits
  xen/iommu: arm: Use p2m_ipa_bits as stage2 input size

 xen/arch/arm/p2m.c                 |  6 +++++-
 xen/arch/arm/setup.c               |  4 ++--
 xen/drivers/passthrough/arm/smmu.c | 10 ++++++++--
 xen/include/asm-arm/p2m.h          |  3 +++
 4 files changed, 18 insertions(+), 5 deletions(-)

-- 
1.9.1


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