lkml.org 
[lkml]   [2021]   [Jun]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v2 4/7] KVM: arm64: Unify MMIO and mem host stage-2 pools
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...

\
 
 \ /
  Last update: 2021-06-06 12:34    [W:0.061 / U:0.768 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site