From mboxrd@z Thu Jan 1 00:00:00 1970 From: christoffer.dall@linaro.org (Christoffer Dall) Date: Mon, 9 Mar 2015 20:31:44 +0100 Subject: [PATCH 5/6] target-arm/kvm64: fix save/restore of SPSR regs In-Reply-To: References: <1424880159-29348-1-git-send-email-alex.bennee@linaro.org> <1424880159-29348-7-git-send-email-alex.bennee@linaro.org> <20150302172212.GB10137@lvm> <874mq27222.fsf@linaro.org> <20150309125650.GA20559@cbox> Message-ID: <20150309193144.GG20559@cbox> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Mon, Mar 09, 2015 at 10:31:19PM +0900, Peter Maydell wrote: > On 9 March 2015 at 21:56, Christoffer Dall wrote: > > this function, however, is not used only when migration, but should > > generally cover the case where you want to synchronize QEMU's state into > > KVM's state, right? So while it may not be harmful in currently > > supported use cases, is there ever a situation where (is_a64(env) && el > > == 0) and env->spsr != banked_spsr[el], and where env->spsr is > > out-of-date? > > If EL == 0 then you can't access any SPSR, so env->spsr is by > definition out of date. > ok, never mind then. -Christoffer