[PATCH v2 0/2] A couple of EL2 refcounts fixes

[Quentin Perret]

Hi all,

This is v2 of the series previously posted here:

https://lore.kernel.org/kvmarm/20211004090328.540941-1-qperret@xxxxxxxxxx/

This addresses a couple of issues Will has found with the refcounting of
page-tables at EL2. Patch 01 fixes a nasty bug, and probably wants to go
in -stable. Patch 02 fixes a small inconsistency which made it harder to
find refcount-related bugs at EL2.

Changes since v1:
 - applied Acked-by from Will;
 - better comment + commit message for patch 01 (Marc).

Thanks!
Quentin

Quentin Perret (2):
  KVM: arm64: Fix host stage-2 PGD refcount
  KVM: arm64: Report corrupted refcount at EL2

 arch/arm64/kvm/hyp/include/nvhe/gfp.h |  1 +
 arch/arm64/kvm/hyp/nvhe/mem_protect.c | 13 ++++++++++++-
 arch/arm64/kvm/hyp/nvhe/page_alloc.c  | 15 +++++++++++++++
 3 files changed, 28 insertions(+), 1 deletion(-)

-- 
2.33.0.800.g4c38ced690-goog