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Include the cluster number in the hash we use to look up TBs. This is important because a TB that is valid for one cluster at a given physical address and set of CPU flags is not necessarily valid for another: the two clusters may have different views of physical memory, or may have different CPU features (eg FPU present or absent). We put the cluster number in the high 8 bits of the TB cflags. This gives us up to 256 clusters, which should be enough for anybody. If we ever need more, or need more bits in cflags for other purposes, we could make tb_hash_func() take more data (and expand qemu_xxhash7() to qemu_xxhash8()). Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Message-id: 20190121152218.9592-4-peter.maydell@linaro.org |
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