From mboxrd@z Thu Jan 1 00:00:00 1970 From: Paolo Bonzini Subject: Re: [PATCH v1] kvm/x86: Hyper-V tsc page setup Date: Wed, 20 Jan 2016 15:05:13 +0100 Message-ID: <569F9419.4000601@redhat.com> References: <1450949580-25759-1-git-send-email-asmetanin@virtuozzo.com> <569DEA3B.2040107@openvz.org> Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Cc: Gleb Natapov , Roman Kagan , qemu-devel@nongnu.org To: "Denis V. Lunev" , Andrey Smetanin , kvm@vger.kernel.org Return-path: Received: from mail-wm0-f65.google.com ([74.125.82.65]:33692 "EHLO mail-wm0-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932261AbcATOFQ (ORCPT ); Wed, 20 Jan 2016 09:05:16 -0500 Received: by mail-wm0-f65.google.com with SMTP id u188so4352663wmu.0 for ; Wed, 20 Jan 2016 06:05:15 -0800 (PST) In-Reply-To: <569DEA3B.2040107@openvz.org> Sender: kvm-owner@vger.kernel.org List-ID: On 19/01/2016 08:48, Denis V. Lunev wrote: >> >> diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h >> index 6877b4d7e..93c9e25 100644 >> --- a/include/linux/kvm_host.h >> +++ b/include/linux/kvm_host.h >> @@ -145,6 +145,7 @@ static inline bool is_error_page(struct page *page) >> #define KVM_REQ_HV_RESET 29 >> #define KVM_REQ_HV_EXIT 30 >> #define KVM_REQ_HV_STIMER 31 >> +#define KVM_REQ_HV_TSC_PAGE 32 >> #define KVM_REQ_MAX 64 >> > ping Applied with this change: diff --git a/arch/x86/kvm/hyperv.c b/arch/x86/kvm/hyperv.c index d7716c6e2752..047c275717d3 100644 --- a/arch/x86/kvm/hyperv.c +++ b/arch/x86/kvm/hyperv.c @@ -842,7 +842,7 @@ int kvm_hv_setup_tsc_page(struct kvm_vcpu *vcpu) tsc_khz, tsc, tsc_scale, tsc_offset); tsc_ref.tsc_sequence++; - if (tsc_ref.tsc_sequence == 0) + if (tsc_ref.tsc_sequence == 0xFFFFFFFF tsc_ref.tsc_sequence == 0) tsc_ref.tsc_sequence = 1; tsc_ref.tsc_scale = tsc_scale; and renumbering KVM_REQ_HV_TSC_PAGE from 32 to 31. Paolo