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From: | Richard Henderson |
Subject: | Re: [PATCH v2 06/11] cputlb: ensure we save the IOTLB data in case of reset |
Date: | Mon, 13 Jul 2020 14:58:17 -0700 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 |
On 7/13/20 1:04 PM, Alex Bennée wrote: > Any write to a device might cause a re-arrangement of memory > triggering a TLB flush and potential re-size of the TLB invalidating > previous entries. This would cause users of qemu_plugin_get_hwaddr() > to see the warning: > > invalid use of qemu_plugin_get_hwaddr > > because of the failed tlb_lookup which should always succeed. To > prevent this we save the IOTLB data in case it is later needed by a > plugin doing a lookup. > > Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> r~
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