linux-user: Add support for big-endian aarch64
Enable big-endian mode for data accesses on aarch64 for big-endian linux user mode. Activate it for all exception levels as documented by ARM: Set the SCTLR EE bit for ELs 1 through 3. Additionally set bit E0E in EL1 to enable it in EL0 as well. Signed-off-by: NMichael Weiser <michael.weiser@gmx.de> Reviewed-by: NRichard Henderson <richard.henderson@linaro.org> Message-id: 20171220212308.12614-2-michael.weiser@gmx.de Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
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