Marc Zyngier d334a67d3e KVM: arm64: Do not try to map PUDs when they are folded into PMD ... commit 3fb884ffe921c99483a84b0175f3c03f048e9069 upstream. For the obscure cases where PMD and PUD are the same size (64kB pages with 42bit VA, for example, which results in only two levels of page tables), we can't map anything as a PUD, because there is... erm... no PUD to speak of. Everything is either a PMD or a PTE. So let's only try and map a PUD when its size is different from that of a PMD. Cc: stable@vger.kernel.org Fixes: b8e0ba7c8b ("KVM: arm64: Add support for creating PUD hugepages at stage 2") Reported-by: Gavin Shan <gshan@redhat.com> Reported-by: Eric Auger <eric.auger@redhat.com> Reviewed-by: Alexandru Elisei <alexandru.elisei@arm.com> Reviewed-by: Gavin Shan <gshan@redhat.com> Tested-by: Gavin Shan <gshan@redhat.com> Tested-by: Eric Auger <eric.auger@redhat.com> Tested-by: Alexandru Elisei <alexandru.elisei@arm.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2020-09-17 13:47:54 +02:00
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kvm	KVM: arm64: Do not try to map PUDs when they are folded into PMD	2020-09-17 13:47:54 +02:00
lib	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	2019-06-19 17:09:55 +02:00
Makefile	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00