Re: [PATCH v5 4/6] arm64: mte: Enable async tag check fault
From: Vincenzo Frascino <vincenzo.frascino@arm.com>
Date: 2021-01-22 11:29:59
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On 1/21/21 5:38 PM, Andrey Konovalov wrote:
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+ if (unlikely(tfsr_el1 & SYS_TFSR_EL1_TF1)) { + /* + * Note: isb() is not required after this direct write + * because there is no indirect read subsequent to it + * (per ARM DDI 0487F.c table D13-1). + */ + write_sysreg_s(0, SYS_TFSR_EL1); + + kasan_report_async();Do we need a static bool reported like in do_tag_recovery() here?
I would say not because async mode does not get disabled after the first fault. -- Regards, Vincenzo _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel