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    SubjectRe: [PATCH v1 1/2] KVM: arm64: handle single-stepping trapped instructions
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    On 06/10/17 12:39, Alex Bennée wrote:
    > If we are using guest debug to single-step the guest we need to ensure
    > we exit after emulating the instruction. This only affects
    > instructions completely emulated by the kernel. For userspace emulated
    > instructions we need to exit and return to complete the emulation.
    >
    > We fake debug.arch.hsr to contain ESR_ELx_EC_SOFTSTP_LOW so QEMU knows
    > it was a single-step event (and without altering the userspace ABI).
    >
    > Signed-off-by: Alex Bennée <alex.bennee@linaro.org>

    Reviewed-by: Julien Thierry <julien.thierry@arm.com>

    Thanks,

    --
    Julien Thierry

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