From patchwork Thu Feb 28 04:13:12 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bharat Bhushan X-Patchwork-Id: 223769 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 62CA42C0085 for ; Thu, 28 Feb 2013 15:17:17 +1100 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752847Ab3B1ERM (ORCPT ); Wed, 27 Feb 2013 23:17:12 -0500 Received: from am1ehsobe003.messaging.microsoft.com ([213.199.154.206]:9075 "EHLO am1outboundpool.messaging.microsoft.com" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1752655Ab3B1ERL (ORCPT ); Wed, 27 Feb 2013 23:17:11 -0500 Received: from mail44-am1-R.bigfish.com (10.3.201.240) by AM1EHSOBE009.bigfish.com (10.3.204.29) with Microsoft SMTP Server id 14.1.225.23; Thu, 28 Feb 2013 04:16:49 +0000 Received: from mail44-am1 (localhost [127.0.0.1]) by mail44-am1-R.bigfish.com (Postfix) with ESMTP id 744DE1800C4; Thu, 28 Feb 2013 04:16:49 +0000 (UTC) X-Forefront-Antispam-Report: CIP:70.37.183.190; KIP:(null); UIP:(null); IPV:NLI; H:mail.freescale.net; RD:none; EFVD:NLI X-SpamScore: 3 X-BigFish: VS3(zzzz1f42h1ee6h1de0h1202h1e76h1d1ah1d2ah1082kzz8275bhz2dh2a8h668h839hd24he5bhf0ah107ah1288h12a5h12a9h12bdh12e5h137ah139eh13b6h1441h1504h1537h162dh1631h1758h1898h18e1h1946h19b5h1ad9h1155h) Received: from mail44-am1 (localhost.localdomain [127.0.0.1]) by mail44-am1 (MessageSwitch) id 1362025007735514_21678; Thu, 28 Feb 2013 04:16:47 +0000 (UTC) Received: from AM1EHSMHS021.bigfish.com (unknown [10.3.201.227]) by mail44-am1.bigfish.com (Postfix) with ESMTP id A75CD1A004C; Thu, 28 Feb 2013 04:16:47 +0000 (UTC) Received: from mail.freescale.net (70.37.183.190) by AM1EHSMHS021.bigfish.com (10.3.207.150) with Microsoft SMTP Server (TLS) id 14.1.225.23; Thu, 28 Feb 2013 04:16:47 +0000 Received: from tx30smr01.am.freescale.net (10.81.153.31) by 039-SN1MMR1-003.039d.mgd.msft.net (10.84.1.16) with Microsoft SMTP Server (TLS) id 14.2.328.11; Thu, 28 Feb 2013 04:16:58 +0000 Received: from freescale.com ([10.232.15.72]) by tx30smr01.am.freescale.net (8.14.3/8.14.0) with SMTP id r1S4GfrG002316; Wed, 27 Feb 2013 21:16:43 -0700 Received: by freescale.com (sSMTP sendmail emulation); Thu, 28 Feb 2013 09:43:31 +0530 From: Bharat Bhushan To: , , , CC: Bharat Bhushan Subject: [PATCH 3/7] KVM: PPC: debug stub interface parameter defined Date: Thu, 28 Feb 2013 09:43:12 +0530 Message-ID: <1362024796-4237-4-git-send-email-bharat.bhushan@freescale.com> X-Mailer: git-send-email 1.7.0.4 In-Reply-To: <1362024796-4237-1-git-send-email-bharat.bhushan@freescale.com> References: <1362024796-4237-1-git-send-email-bharat.bhushan@freescale.com> MIME-Version: 1.0 X-OriginatorOrg: freescale.com Sender: kvm-ppc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm-ppc@vger.kernel.org This patch defines the interface parameter for KVM_SET_GUEST_DEBUG ioctl support. Follow up patches will use this for setting up hardware breakpoints, watchpoints and software breakpoints. Also kvm_arch_vcpu_ioctl_set_guest_debug() is brought one level below. This is because I am not sure what is required for book3s. So this ioctl behaviour will not change for book3s. Signed-off-by: Bharat Bhushan --- arch/powerpc/include/uapi/asm/kvm.h | 23 +++++++++++++++++++++++ arch/powerpc/kvm/book3s.c | 6 ++++++ arch/powerpc/kvm/booke.c | 6 ++++++ arch/powerpc/kvm/powerpc.c | 6 ------ 4 files changed, 35 insertions(+), 6 deletions(-) diff --git a/arch/powerpc/include/uapi/asm/kvm.h b/arch/powerpc/include/uapi/asm/kvm.h index c2ff99c..15f9a00 100644 --- a/arch/powerpc/include/uapi/asm/kvm.h +++ b/arch/powerpc/include/uapi/asm/kvm.h @@ -272,8 +272,31 @@ struct kvm_debug_exit_arch { /* for KVM_SET_GUEST_DEBUG */ struct kvm_guest_debug_arch { + struct { + /* H/W breakpoint/watchpoint address */ + __u64 addr; + /* + * Type denotes h/w breakpoint, read watchpoint, write + * watchpoint or watchpoint (both read and write). + */ +#define KVMPPC_DEBUG_NOTYPE 0x0 +#define KVMPPC_DEBUG_BREAKPOINT (1UL << 1) +#define KVMPPC_DEBUG_WATCH_WRITE (1UL << 2) +#define KVMPPC_DEBUG_WATCH_READ (1UL << 3) + __u32 type; + __u32 reserved; + } bp[16]; }; +/* Debug related defines */ +/* + * kvm_guest_debug->control is a 32 bit field. The lower 16 bits are generic + * and upper 16 bits are architecture specific. Architecture specific defines + * that ioctl is for setting hardware breakpoint or software breakpoint. + */ +#define KVM_GUESTDBG_USE_SW_BP 0x00010000 +#define KVM_GUESTDBG_USE_HW_BP 0x00020000 + /* definition of registers in kvm_run */ struct kvm_sync_regs { }; diff --git a/arch/powerpc/kvm/book3s.c b/arch/powerpc/kvm/book3s.c index 975a401..cb85d73 100644 --- a/arch/powerpc/kvm/book3s.c +++ b/arch/powerpc/kvm/book3s.c @@ -613,6 +613,12 @@ int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu, return 0; } +int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu, + struct kvm_guest_debug *dbg) +{ + return -EINVAL; +} + void kvmppc_decrementer_func(unsigned long data) { struct kvm_vcpu *vcpu = (struct kvm_vcpu *)data; diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c index a41cd6d..1de93a8 100644 --- a/arch/powerpc/kvm/booke.c +++ b/arch/powerpc/kvm/booke.c @@ -1527,6 +1527,12 @@ int kvm_vcpu_ioctl_set_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg) return r; } +int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu, + struct kvm_guest_debug *dbg) +{ + return -EINVAL; +} + int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu) { return -ENOTSUPP; diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c index 934413c..4c94ca9 100644 --- a/arch/powerpc/kvm/powerpc.c +++ b/arch/powerpc/kvm/powerpc.c @@ -532,12 +532,6 @@ void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu) #endif } -int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu, - struct kvm_guest_debug *dbg) -{ - return -EINVAL; -} - static void kvmppc_complete_dcr_load(struct kvm_vcpu *vcpu, struct kvm_run *run) {