Messages in this thread | | | Date | Sun, 06 Jun 2021 11:31:20 +0100 | From | Marc Zyngier <> | Subject | Re: [PATCH v2 4/7] KVM: arm64: Unify MMIO and mem host stage-2 pools |
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On 2021-06-02 10:43, Quentin Perret wrote: > We currently maintain two separate memory pools for the host stage-2, > one for pages used in the page-table when mapping memory regions, and > the other to map MMIO regions. The former is large enough to map all of > memory with page granularity and the latter can cover an arbitrary > portion of IPA space, but allows to 'recycle' pages. > > However, this split makes accounting difficult to manage as pages at > intermediate levels of the page-table may be used to map both memory > and > MMIO regions. Simplify the scheme by merging both pools into one. This > means we can now hit the -ENOMEM case in the memory abort path, but > we're still guaranteed forward-progress in the worst case by unmapping > MMIO regions. On the plus side this also means we can usually map a lot > more MMIO space at once if memory ranges happen to be mapped with block > mappings. > > Signed-off-by: Quentin Perret <qperret@google.com>
This patch fails to apply on top of -rc4. Did you use some more exotic base or, as I suspect, a development tree?
Please check and respin the series if necessary.
M. -- Jazz is not dead. It just smells funny...
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