From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pavel Fedin Subject: [PATCH v4 0/3] KVM: arm/arm64: Allow to use KVM without in-kernel irqchip Date: Mon, 17 Aug 2015 12:43:37 +0300 Message-ID: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: Marc Zyngier To: kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org Return-path: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: kvmarm-bounces@lists.cs.columbia.edu Sender: kvmarm-bounces@lists.cs.columbia.edu List-Id: kvm.vger.kernel.org This patch set brings back functionality which was broken in v4.0. Unfortunately because of restrictions of such a hardware is is impossible to take advantage of virtual architected timer, therefore guest, running in such restricted mode, has to use some memory-mapped timer. But it is still better than nothing. v3 => v4: - Revert back to using switch on kvm_vgic_hyp_init() return code. I decided to leave 'vgic_present = false' statement because it helps to understand the code. v2 => v3: - Improved commit messages, added references to commits where the respective functionality was broken - Explicitly specify that the solution currently affects only vGIC and has nothing to do with timer. - Fixed code style according to previous notes - Removed ARM64 save/restore patch introduced in v2 because it was already obsolete for linux-next - Modify KVM_CAP_IRQFD handling in correct place v1 => v2: - Do not use defensive approach in patch 0001. Use correct conditions in callers instead - Added ARM64-specific code, without which attempt to run a VM ends in a HYP crash because of unset vGIC save/restore function pointers Pavel Fedin (3): Fix NULL pointer dereference if KVM is used without in-kernel irqchip Detect vGIC presence at runtime Make KVM_CAP_IRQFD dependent on KVM_CAP_IRQCHIP arch/arm/kvm/arm.c | 24 +++++++++++++++++++++--- virt/kvm/kvm_main.c | 5 +++-- 2 files changed, 24 insertions(+), 5 deletions(-) -- 2.4.4