From patchwork Thu Nov 23 04:36:13 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Benjamin Herrenschmidt X-Patchwork-Id: 10072315 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 44094601D5 for ; Thu, 23 Nov 2017 04:40:17 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 358422878F for ; Thu, 23 Nov 2017 04:40:17 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 2A51229DA1; Thu, 23 Nov 2017 04:40:17 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C5CEF29777 for ; Thu, 23 Nov 2017 04:40:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752616AbdKWEkO (ORCPT ); Wed, 22 Nov 2017 23:40:14 -0500 Received: from gate.crashing.org ([63.228.1.57]:55493 "EHLO gate.crashing.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752581AbdKWEkJ (ORCPT ); Wed, 22 Nov 2017 23:40:09 -0500 Received: from pasglop.ozlabs.ibm.com (localhost.localdomain [127.0.0.1]) by gate.crashing.org (8.14.1/8.14.1) with ESMTP id vAN4aMBF027724; Wed, 22 Nov 2017 22:36:33 -0600 From: Benjamin Herrenschmidt To: Paul Mackerras Cc: kvm@vger.kernel.org, kvm-ppc@vger.kernel.org, Benjamin Herrenschmidt Subject: [PATCH v2 05/11] powerpc/kvm/xive: Make xive_pushed a byte, not a word Date: Thu, 23 Nov 2017 15:36:13 +1100 Message-Id: <20171123043619.15301-5-benh@kernel.crashing.org> X-Mailer: git-send-email 2.14.3 In-Reply-To: <20171123043619.15301-1-benh@kernel.crashing.org> References: <20171123043619.15301-1-benh@kernel.crashing.org> Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/include/asm/kvm_host.h | 3 ++- arch/powerpc/kvm/book3s_hv_rmhandlers.S | 6 +++--- 2 files changed, 5 insertions(+), 4 deletions(-) diff --git a/arch/powerpc/include/asm/kvm_host.h b/arch/powerpc/include/asm/kvm_host.h index ba915ee24825..8a4e77273b07 100644 --- a/arch/powerpc/include/asm/kvm_host.h +++ b/arch/powerpc/include/asm/kvm_host.h @@ -741,7 +741,8 @@ struct kvm_vcpu_arch { struct kvmppc_icp *icp; /* XICS presentation controller */ struct kvmppc_xive_vcpu *xive_vcpu; /* XIVE virtual CPU data */ __be32 xive_cam_word; /* Cooked W2 in proper endian with valid bit */ - u32 xive_pushed; /* Is the VP pushed on the physical CPU ? */ + u8 xive_pushed; /* Is the VP pushed on the physical CPU ? */ + u8 xive_esc_on; /* Is the escalation irq enabled ? */ union xive_tma_w01 xive_saved_state; /* W0..1 of XIVE thread state */ #endif diff --git a/arch/powerpc/kvm/book3s_hv_rmhandlers.S b/arch/powerpc/kvm/book3s_hv_rmhandlers.S index 39908e60401f..286bcc4a73c2 100644 --- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S +++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S @@ -995,7 +995,7 @@ ALT_FTR_SECTION_END_IFCLR(CPU_FTR_ARCH_300) li r9, TM_QW1_OS + TM_WORD2 stwcix r11,r9,r10 li r9, 1 - stw r9, VCPU_XIVE_PUSHED(r4) + stb r9, VCPU_XIVE_PUSHED(r4) eieio /* @@ -1400,7 +1400,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_300) guest_exit_cont: /* r9 = vcpu, r12 = trap, r13 = paca */ #ifdef CONFIG_KVM_XICS /* We are exiting, pull the VP from the XIVE */ - lwz r0, VCPU_XIVE_PUSHED(r9) + lbz r0, VCPU_XIVE_PUSHED(r9) cmpwi cr0, r0, 0 beq 1f li r7, TM_SPC_PULL_OS_CTX @@ -1429,7 +1429,7 @@ guest_exit_cont: /* r9 = vcpu, r12 = trap, r13 = paca */ /* Fixup some of the state for the next load */ li r10, 0 li r0, 0xff - stw r10, VCPU_XIVE_PUSHED(r9) + stb r10, VCPU_XIVE_PUSHED(r9) stb r10, (VCPU_XIVE_SAVED_STATE+3)(r9) stb r0, (VCPU_XIVE_SAVED_STATE+4)(r9) eieio