From patchwork Thu Jan 11 04:34:05 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Benjamin Herrenschmidt X-Patchwork-Id: 858769 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=kvm-ppc-owner@vger.kernel.org; receiver=) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3zHCj018Xjz9t41 for ; Thu, 11 Jan 2018 15:35:00 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753646AbeAKEe7 (ORCPT ); Wed, 10 Jan 2018 23:34:59 -0500 Received: from gate.crashing.org ([63.228.1.57]:48408 "EHLO gate.crashing.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753619AbeAKEe5 (ORCPT ); Wed, 10 Jan 2018 23:34:57 -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 w0B4YYbr010800; Wed, 10 Jan 2018 22:34:47 -0600 From: Benjamin Herrenschmidt To: kvm-ppc@vger.kernel.org, kvm@vger.kernel.org Cc: Benjamin Herrenschmidt Subject: [PATCH v3 08/16] powerpc/kvm/xive: Make xive_pushed a byte, not a word Date: Thu, 11 Jan 2018 15:34:05 +1100 Message-Id: <20180111043413.22655-8-benh@kernel.crashing.org> X-Mailer: git-send-email 2.14.3 In-Reply-To: <20180111043413.22655-1-benh@kernel.crashing.org> References: <20180111043413.22655-1-benh@kernel.crashing.org> Sender: kvm-ppc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm-ppc@vger.kernel.org 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 bfe51356af5e..2cf2cc6b389a 100644 --- a/arch/powerpc/include/asm/kvm_host.h +++ b/arch/powerpc/include/asm/kvm_host.h @@ -739,7 +739,8 @@ 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 68a9b28dfd25..bc3fc39d482b 100644 --- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S +++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S @@ -1031,7 +1031,7 @@ 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 /* @@ -1436,7 +1436,7 @@ 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 @@ -1465,7 +1465,7 @@ 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