From mboxrd@z Thu Jan 1 00:00:00 1970 From: alex.bennee@linaro.org (Alex =?utf-8?Q?Benn=C3=A9e?=) Date: Thu, 09 Apr 2015 15:18:03 +0100 Subject: [PATCH v2 05/10] KVM: arm: introduce kvm_arch_setup/clear_debug() In-Reply-To: <20150409125607.GD3212@hawk.usersys.redhat.com> References: <1427814488-28467-1-git-send-email-alex.bennee@linaro.org> <1427814488-28467-6-git-send-email-alex.bennee@linaro.org> <20150401182855.4650b14a@thinkpad-w530> <20150409125607.GD3212@hawk.usersys.redhat.com> Message-ID: <874mop1j38.fsf@linaro.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Andrew Jones writes: > On Wed, Apr 01, 2015 at 06:28:55PM +0200, David Hildenbrand wrote: >> > This is a precursor for later patches which will need to do more to >> > setup debug state before entering the hyp.S switch code. The existing >> > functionality for setting mdcr_el2 has been moved out of hyp.S and now >> > uses the value kept in vcpu->arch.mdcr_el2. >> > >> > This also moves the conditional setting of the TDA bit from the hyp code >> > into the C code. >> > >> > Signed-off-by: Alex Benn?e >> > >> > create mode 100644 arch/arm64/kvm/debug.c >> > >> > diff --git a/arch/arm/include/asm/kvm_host.h b/arch/arm/include/asm/kvm_host.h >> > index 41008cd..8c01c97 100644 >> > --- a/arch/arm/include/asm/kvm_host.h >> > +++ b/arch/arm/include/asm/kvm_host.h >> > @@ -242,5 +242,7 @@ static inline void kvm_arch_hardware_unsetup(void) {} >> > static inline void kvm_arch_sync_events(struct kvm *kvm) {} >> > static inline void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu) {} >> > static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {} >> > +static inline void kvm_arch_setup_debug(struct kvm_vcpu *vcpu) {} >> > +static inline void kvm_arch_clear_debug(struct kvm_vcpu *vcpu) {} >> >> Do you really want to call these functions "kvm_arch.." although they are not >> defined for other arch and not triggered by common code? >> > > Agreed. If other arches want something similar we can rename/refactor > later. If these are arm-only functions, then we don't need the generic > prefix, which is actually even a bit confusing. They are arm only but I was keeping in mind the need to add guest debug to ARMv7 at some point. > > drew -- Alex Benn?e