path: root/virt/kvm/vfio.c
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authorMarc Zyngier <marc.zyngier@arm.com>2016-07-17 11:48:47 +0100
committerMarc Zyngier <marc.zyngier@arm.com>2016-07-18 18:15:18 +0100
commitd6c7f865f00adf98ca79712167fb0f1b9dccb272 (patch)
treeeba4cdf8b80f67d46212e425b335214aafdeb1cf /virt/kvm/vfio.c
parent333a53ff7fb9d836ff4a2b7f266ac9b2bb85e873 (diff)
KVM: arm64: vgic-its: Fix L2 entry validation for indirect tables
When checking that the storage address of a device entry is valid, it is critical to compute the actual address of the entry, rather than relying on the beginning of the page to match a CPU page of the same size: for example, if the guest places the table at the last 64kB boundary of RAM, but RAM size isn't a multiple of 64kB... Fix this by computing the actual offset of the device ID in the L2 page, and check the corresponding GFN. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Diffstat (limited to 'virt/kvm/vfio.c')
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