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authorSuzuki K Poulose <suzuki.poulose@arm.com>2018-07-18 12:18:44 +0300
committerMichael S. Tsirkin <mst@redhat.com>2018-08-22 00:56:56 +0300
commit3fc92a96c2b7efdb7fc4f856713e2ab7439757f6 (patch)
treef3e5cfc2cd07fb8ac3745c26d3583fc38bf79a63 /crypto/rmd128.c
parent71994620bb25a8b109388fefa9e99a28e355255a (diff)
downloadlinux-3fc92a96c2b7efdb7fc4f856713e2ab7439757f6.tar.xz
virtio: mmio-v1: Validate queue PFN
virtio-mmio with virtio-v1 uses a 32bit PFN for the queue. If the queue pfn is too large to fit in 32bits, which we could hit on arm64 systems with 52bit physical addresses (even with 64K page size), we simply miss out a proper link to the other side of the queue. Add a check to validate the PFN, rather than silently breaking the devices. Cc: "Michael S. Tsirkin" <mst@redhat.com> Cc: Jason Wang <jasowang@redhat.com> Cc: Marc Zyngier <marc.zyngier@arm.com> Cc: Christoffer Dall <cdall@kernel.org> Cc: Peter Maydel <peter.maydell@linaro.org> Cc: Jean-Philippe Brucker <jean-philippe.brucker@arm.com> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'crypto/rmd128.c')
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