From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Google-Smtp-Source: AG47ELvrmnH3SVSBk2ondv2xFyUOJGG74EjAuC9h6rCT+/DsRHAflPURfEZjNKZk2NLJHwQEB0c2 ARC-Seal: i=1; a=rsa-sha256; t=1519925096; cv=none; d=google.com; s=arc-20160816; b=iiohMfT6BboPcT1Ih6nWh4zowvllu2oftIrcf4C4QMKN+oRhRbOQltvg2C5D3alhSX FMDFue7SgyqcvcdS78HQUhcLfcgJx/2yk2/4rII4W6fHAbzsuJoeKvkTpKcv3VQc18wB MDtOu6eSSG2DzfCvDpDBG/9R3GnnQ+Z8gNySqyl6Hj2eK5KVBl8r/8vVnFyvKNsuPwUu mn8lQF0DGKbY8YAByMC6iGH8Ub/G+QELPz/7F+UspeUK1+x/FiPYEw2W9FnUE4DDHM09 oqwrBfAQjx1XwfaW/tv4eZe/rx5KNuaYX+CXPmat6r0TpXibjoKrdL6fCOvKROpsJdoy mHAQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=content-language:content-transfer-encoding:in-reply-to:mime-version :user-agent:date:message-id:organization:from:references:cc:to :subject:dkim-signature:arc-authentication-results; bh=KDTByvykgIzLopDKSD3p/gLtM9eVq4FuxScUTESVnkc=; b=Y9d7W2mOlSkVK3b1s7x2UwPeUZnhh/s6b25DZlj1CxrIM+KZVM0YVsa74tv5C32/SV PLjoXOP9e9x5RxTZUoUMSTncqEjCFgWZQrWgbVZK6KqR23OEM1ljujw3+OIt5TXaft/O khvHV6pTy+d6jdTrjzPcgjQFO7XBFY0lpSN8yV9dDCljDizISuI6G9kt99kBrPIsSlYI ylGthslwNVfLRuIrsFN8C9KZu4pDBsudbQM2eJdkkO7SstjyHHytiEyw3veL5Dyglvf3 1yyW1TH3x6jLdWyxgEgCfXhokr/JCms5g04N1EKijDzPoL7QdDGS3XsR0HhKpdejFC4r Wiuw== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@oracle.com header.s=corp-2017-10-26 header.b=rrO+rgA+; spf=pass (google.com: domain of maran.wilson@oracle.com designates 156.151.31.85 as permitted sender) smtp.mailfrom=maran.wilson@oracle.com; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=oracle.com Authentication-Results: mx.google.com; dkim=pass header.i=@oracle.com header.s=corp-2017-10-26 header.b=rrO+rgA+; spf=pass (google.com: domain of maran.wilson@oracle.com designates 156.151.31.85 as permitted sender) smtp.mailfrom=maran.wilson@oracle.com; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=oracle.com Subject: Re: [RFC PATCH v4 1/7] xen/pvh: Split CONFIG_XEN_PVH into CONFIG_PVH and CONFIG_XEN_PVH To: Paolo Bonzini , Boris Ostrovsky , jgross@suse.com, roger.pau@citrix.com, andrew.cooper3@citrix.com, hch@infradead.org, JBeulich@suse.com, x86@kernel.org, xen-devel@lists.xenproject.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org Cc: tglx@linutronix.de, mingo@redhat.com, hpa@zytor.com, rkrcmar@redhat.com, jpoimboe@redhat.com, bp@suse.de, kirill.shutemov@linux.intel.com, thomas.lendacky@amd.com, luto@kernel.org, dave.hansen@linux.intel.com, davem@davemloft.net, gregkh@linuxfoundation.org, mchehab@kernel.org, linus.walleij@linaro.org, rdunlap@infradead.org References: <1519842483-8887-1-git-send-email-maran.wilson@oracle.com> <1519842483-8887-2-git-send-email-maran.wilson@oracle.com> <5be04d96-aa10-a022-2597-f7f40138f8f8@oracle.com> <8cdb96db-0771-f062-e0ea-54b4171d6a98@redhat.com> From: Maran Wilson Organization: Oracle Corporation Message-ID: Date: Thu, 1 Mar 2018 09:24:13 -0800 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.6.0 MIME-Version: 1.0 In-Reply-To: <8cdb96db-0771-f062-e0ea-54b4171d6a98@redhat.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Content-Language: en-US X-Proofpoint-Virus-Version: vendor=nai engine=5900 definitions=8819 signatures=668682 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=0 malwarescore=0 phishscore=0 bulkscore=0 spamscore=0 mlxscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1711220000 definitions=main-1803010215 X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: =?utf-8?q?1593670432609567761?= X-GMAIL-MSGID: =?utf-8?q?1593756978254213138?= X-Mailing-List: linux-kernel@vger.kernel.org List-ID: On 3/1/2018 7:17 AM, Paolo Bonzini wrote: > On 01/03/2018 16:02, Boris Ostrovsky wrote: >> On 02/28/2018 01:27 PM, Maran Wilson wrote: >>> diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig >>> index eb7f43f23521..fa7cd0305125 100644 >>> --- a/arch/x86/Kconfig >>> +++ b/arch/x86/Kconfig >>> @@ -791,6 +791,14 @@ config KVM_GUEST >>> underlying device model, the host provides the guest with >>> timing infrastructure such as time of day, and system time >>> >>> +config PVH >>> + bool "Support for running PVH guests" >>> + depends on KVM_GUEST || XEN >> >> Not sure about XEN part. PVH is selected by XEN_PVH for Xen. >> >> What about introducing KVM_GUEST_PVH that will select PVH and then drop >> dependency here? > That is, "config KVM_GUEST_PVH" "depends on KVM_GUEST" "select PVH". > Sounds good to me. OK, will do. Thanks, -Maran > Paolo > >> -boris >> >>> + def_bool n >>> + ---help--- >>> + This option enables the PVH entry point for guest virtual machines >>> + as specified in the x86/HVM direct boot ABI. >>> + >>> >> >>> diff --git a/arch/x86/xen/Kconfig b/arch/x86/xen/Kconfig >>> index f605825a04ab..021c8591c3c0 100644 >>> --- a/arch/x86/xen/Kconfig >>> +++ b/arch/x86/xen/Kconfig >>> @@ -77,8 +77,9 @@ config XEN_DEBUG_FS >>> Enabling this option may incur a significant performance overhead. >>> >>> config XEN_PVH >>> - bool "Support for running as a PVH guest" >>> + bool "Support for running as a Xen PVH guest" >>> depends on XEN && XEN_PVHVM && ACPI >>> # Pre-built page tables are not ready to handle 5-level paging. >>> depends on !X86_5LEVEL >>> + select PVH >>> def_bool n