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Straight-line Speculation is a SPECTRE-like attack on Armv8-A, further details can be found in the white paper here: https://developer.arm.com/support/arm-security-updates/speculative-processor-vulnerability/downloads/straight-line-speculation Backport the GCC patches to mitigate the attack. CVE: CVE-2020-13844 (From OE-Core rev: 406a1636e1111729e3bb0fe804ef28c8a51c22e3) Signed-off-by: Ross Burton <ross.burton@arm.com> Signed-off-by: Steve Sakoman <steve@sakoman.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
QEMU Emulation Targets ====================== To simplify development, the build system supports building images to work with the QEMU emulator in system emulation mode. Several architectures are currently supported in 32 and 64 bit variants: * ARM (qemuarm + qemuarm64) * x86 (qemux86 + qemux86-64) * PowerPC (qemuppc only) * MIPS (qemumips + qemumips64) Use of the QEMU images is covered in the Yocto Project Reference Manual. The appropriate MACHINE variable value corresponding to the target is given in brackets.