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Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Wed, 10 Jul 2019 14:22:28 +0100 Received: from b03ledav003.gho.boulder.ibm.com (b03ledav003.gho.boulder.ibm.com [9.17.130.234]) by b03cxnp08025.gho.boulder.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id x6ADMQHe37355980 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 10 Jul 2019 13:22:26 GMT Received: from b03ledav003.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id B9DA06A047; Wed, 10 Jul 2019 13:22:26 +0000 (GMT) Received: from b03ledav003.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 5F6FF6A057; Wed, 10 Jul 2019 13:22:26 +0000 (GMT) Received: from ltc.linux.ibm.com (unknown [9.16.170.189]) by b03ledav003.gho.boulder.ibm.com (Postfix) with ESMTP; Wed, 10 Jul 2019 13:22:26 +0000 (GMT) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 7bit Date: Wed, 10 Jul 2019 08:24:56 -0500 From: janani To: Bharata B Rao Cc: linuxppc-dev@lists.ozlabs.org, linuxram@us.ibm.com, cclaudio@linux.ibm.com, kvm-ppc@vger.kernel.org, linux-mm@kvack.org, jglisse@redhat.com, aneesh.kumar@linux.vnet.ibm.com, paulus@au1.ibm.com, sukadev@linux.vnet.ibm.com, Anshuman Khandual , Linuxppc-dev Subject: Re: [PATCH v5 7/7] KVM: PPC: Ultravisor: Add PPC_UV config option Organization: IBM Reply-To: janani@linux.ibm.com Mail-Reply-To: janani@linux.ibm.com In-Reply-To: <20190709102545.9187-8-bharata@linux.ibm.com> References: <20190709102545.9187-1-bharata@linux.ibm.com> <20190709102545.9187-8-bharata@linux.ibm.com> X-Sender: janani@linux.ibm.com User-Agent: Roundcube Webmail/1.0.1 X-TM-AS-GCONF: 00 x-cbid: 19071013-0036-0000-0000-00000AD591AA X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00011404; HX=3.00000242; KW=3.00000007; PH=3.00000004; SC=3.00000286; SDB=6.01230167; UDB=6.00647931; IPR=6.01011436; MB=3.00027665; MTD=3.00000008; XFM=3.00000015; UTC=2019-07-10 13:22:30 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 19071013-0037-0000-0000-00004C890942 Message-Id: <6759c8a79b2962d07ed99f2b1cd05637@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2019-07-10_05:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1810050000 definitions=main-1907100155 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On 2019-07-09 05:25, Bharata B Rao wrote: > From: Anshuman Khandual > > CONFIG_PPC_UV adds support for ultravisor. > > Signed-off-by: Anshuman Khandual > Signed-off-by: Bharata B Rao > Signed-off-by: Ram Pai > [ Update config help and commit message ] > Signed-off-by: Claudio Carvalho Reviewed-by: Janani Janakiraman > --- > arch/powerpc/Kconfig | 20 ++++++++++++++++++++ > 1 file changed, 20 insertions(+) > > diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig > index f0e5b38d52e8..20c6c213d2be 100644 > --- a/arch/powerpc/Kconfig > +++ b/arch/powerpc/Kconfig > @@ -440,6 +440,26 @@ config PPC_TRANSACTIONAL_MEM > ---help--- > Support user-mode Transactional Memory on POWERPC. > > +config PPC_UV > + bool "Ultravisor support" > + depends on KVM_BOOK3S_HV_POSSIBLE > + select HMM_MIRROR > + select HMM > + select ZONE_DEVICE > + select MIGRATE_VMA_HELPER > + select DEV_PAGEMAP_OPS > + select DEVICE_PRIVATE > + select MEMORY_HOTPLUG > + select MEMORY_HOTREMOVE > + default n > + help > + This option paravirtualizes the kernel to run in POWER platforms > that > + supports the Protected Execution Facility (PEF). In such platforms, > + the ultravisor firmware runs at a privilege level above the > + hypervisor. > + > + If unsure, say "N". > + > config LD_HEAD_STUB_CATCH > bool "Reserve 256 bytes to cope with linker stubs in HEAD text" if > EXPERT > depends on PPC64