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| author | Quentin Perret <qperret@google.com> | 2022-11-10 19:02:53 +0000 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2022-11-11 17:18:58 +0000 |
| commit | f41dff4efb918db68923a826e966ca62c7c8e929 (patch) | |
| tree | 066dfafdfe64e20b689809729de4d34b69da317d /arch/x86/mm/pkeys.c | |
| parent | 60dfe093ec13b056856c672e1daa35134be38283 (diff) | |
| download | linux-f41dff4efb918db68923a826e966ca62c7c8e929.tar.bz2 | |
KVM: arm64: Return guest memory from EL2 via dedicated teardown memcache
Rather than relying on the host to free the previously-donated pKVM
hypervisor VM pages explicitly on teardown, introduce a dedicated
teardown memcache which allows the host to reclaim guest memory
resources without having to keep track of all of the allocations made by
the pKVM hypervisor at EL2.
Tested-by: Vincent Donnefort <vdonnefort@google.com>
Co-developed-by: Fuad Tabba <tabba@google.com>
Signed-off-by: Fuad Tabba <tabba@google.com>
Signed-off-by: Quentin Perret <qperret@google.com>
Signed-off-by: Will Deacon <will@kernel.org>
[maz: dropped __maybe_unused from unmap_donated_memory_noclear()]
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20221110190259.26861-21-will@kernel.org
Diffstat (limited to 'arch/x86/mm/pkeys.c')
0 files changed, 0 insertions, 0 deletions