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Sat, 15 Feb 2020 11:56:26 +0000 Date: Sat, 15 Feb 2020 11:56:24 +0000 From: Marc Zyngier To: Mark Brown Subject: Re: [PATCH v6 10/11] KVM: arm64: BTI: Reset BTYPE when skipping emulated instructions Message-ID: <20200215115624.2afbf55c@why> In-Reply-To: <20200212192906.53366-11-broonie@kernel.org> References: <20200212192906.53366-1-broonie@kernel.org> <20200212192906.53366-11-broonie@kernel.org> Organization: Approximate X-Mailer: Claws Mail 3.17.4 (GTK+ 2.24.32; x86_64-pc-linux-gnu) MIME-Version: 1.0 X-SA-Exim-Connect-IP: 62.31.163.78 X-SA-Exim-Rcpt-To: broonie@kernel.org, catalin.marinas@arm.com, will@kernel.org, viro@zeniv.linux.org.uk, paul.elliott@arm.com, peterz@infradead.org, yu-cheng.yu@intel.com, amit.kachhap@arm.com, vincenzo.frascino@arm.com, esyr@redhat.com, szabolcs.nagy@arm.com, hjl.tools@gmail.com, drjones@redhat.com, keescook@chromium.org, arnd@arndb.de, jannh@google.com, richard.henderson@linaro.org, kristina.martsenko@arm.com, tglx@linutronix.de, fweimer@redhat.com, sudi.das@arm.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, linux-fsdevel@vger.kernel.org, Dave.Martin@arm.com X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200215_035631_298095_2FE9F307 X-CRM114-Status: UNSURE ( 9.70 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Paul Elliott , Peter Zijlstra , Catalin Marinas , Andrew Jones , Amit Kachhap , Vincenzo Frascino , Will Deacon , linux-arch@vger.kernel.org, Eugene Syromiatnikov , Szabolcs Nagy , Dave Martin , "H . J . Lu " , Yu-cheng Yu , Kees Cook , Arnd Bergmann , Jann Horn , Richard Henderson , Kristina =?UTF-8?Q?Mart=C5=A1enko?= , Alexander Viro , Thomas Gleixner , linux-arm-kernel@lists.infradead.org, Florian Weimer , linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, Sudakshina Das Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Wed, 12 Feb 2020 19:29:05 +0000 Mark Brown wrote: > From: Dave Martin > > Since normal execution of any non-branch instruction resets the > PSTATE BTYPE field to 0, so do the same thing when emulating a > trapped instruction. > > Branches don't trap directly, so we should never need to assign a > non-zero value to BTYPE here. > > Signed-off-by: Dave Martin > Signed-off-by: Mark Brown Acked-by: Marc Zyngier M. -- Jazz is not dead. It just smells funny... _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel