target/arm: Restrict semi-hosting to TCG
Per Peter Maydell: Semihosting hooks either SVC or HLT instructions, and inside KVM both of those go to EL1, ie to the guest, and can't be trapped to KVM. Let check_for_semihosting() return False when not running on TCG. Signed-off-by: NPhilippe Mathieu-Daudé <philmd@redhat.com> Message-id: 20190701194942.10092-3-philmd@redhat.com Reviewed-by: NPeter Maydell <peter.maydell@linaro.org> Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
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