From mboxrd@z Thu Jan 1 00:00:00 1970 From: Feng Wu Subject: [v2 14/25] KVM: Get Posted-Interrupts descriptor address from struct kvm_vcpu Date: Wed, 3 Dec 2014 15:39:43 +0800 Message-ID: <1417592394-24343-15-git-send-email-feng.wu@intel.com> References: <1417592394-24343-1-git-send-email-feng.wu@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1417592394-24343-1-git-send-email-feng.wu-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org Errors-To: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org To: tglx-hfZtesqFncYOwBW4kG4KsQ@public.gmane.org, mingo-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, hpa-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org, x86-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, gleb-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, pbonzini-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, dwmw2-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org, joro-zLv9SwRftAIdnm+yROfE0A@public.gmane.org, alex.williamson-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, jiang.liu-VuQAYsv1563Yd54FQh9/CA@public.gmane.org Cc: iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, kvm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: iommu@lists.linux-foundation.org Define a interface to get PI descriptor address from the vCPU structure. Signed-off-by: Feng Wu --- arch/x86/include/asm/kvm_host.h | 1 + arch/x86/kvm/vmx.c | 12 ++++++++++++ 2 files changed, 13 insertions(+), 0 deletions(-) diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index 7a41808..9b45b78 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -772,6 +772,7 @@ struct kvm_x86_ops { int (*check_nested_events)(struct kvm_vcpu *vcpu, bool external_intr); void (*sched_in)(struct kvm_vcpu *kvm, int cpu); + u64 (*get_pi_desc_addr)(struct kvm_vcpu *vcpu); }; struct kvm_arch_async_pf { diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 66ca275..81f239b 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -562,6 +562,11 @@ static inline struct vcpu_vmx *to_vmx(struct kvm_vcpu *vcpu) return container_of(vcpu, struct vcpu_vmx, vcpu); } +struct pi_desc *vcpu_to_pi_desc(struct kvm_vcpu *vcpu) +{ + return &(to_vmx(vcpu)->pi_desc); +} + #define VMCS12_OFFSET(x) offsetof(struct vmcs12, x) #define FIELD(number, name) [number] = VMCS12_OFFSET(name) #define FIELD64(number, name) [number] = VMCS12_OFFSET(name), \ @@ -4298,6 +4303,11 @@ static void vmx_sync_pir_to_irr_dummy(struct kvm_vcpu *vcpu) return; } +static u64 vmx_get_pi_desc_addr(struct kvm_vcpu *vcpu) +{ + return __pa((u64)vcpu_to_pi_desc(vcpu)); +} + /* * Set up the vmcs's constant host-state fields, i.e., host-state fields that * will not change in the lifetime of the guest. @@ -9244,6 +9254,8 @@ static struct kvm_x86_ops vmx_x86_ops = { .check_nested_events = vmx_check_nested_events, .sched_in = vmx_sched_in, + + .get_pi_desc_addr = vmx_get_pi_desc_addr, }; static int __init vmx_init(void) -- 1.7.1