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The current two-stage lookup detection in riscv_cpu_do_interrupt falls short of its purpose, as all it checks is whether two-stage address translation either via the hypervisor-load store instructions or the MPRV feature would be allowed. What we really need instead is whether two-stage address translation was active when the exception was raised. However, in riscv_cpu_do_interrupt we do not have the information to reliably detect this. Therefore, when we raise a memory fault exception we have to record whether two-stage address translation is active. Signed-off-by: Georg Kotheimer <georg.kotheimer@kernkonzept.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20210319141459.1196741-1-georg.kotheimer@kernkonzept.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com> |
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