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Mon, 7 Nov 2022 17:56:53 GMT Received: from smtpav02.dal12v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id CC5055805E; Mon, 7 Nov 2022 17:56:54 +0000 (GMT) Received: from smtpav02.dal12v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id B470A5805F; Mon, 7 Nov 2022 17:56:51 +0000 (GMT) Received: from li-479af74c-31f9-11b2-a85c-e4ddee11713b.ibm.com (unknown [9.65.225.56]) by smtpav02.dal12v.mail.ibm.com (Postfix) with ESMTP; Mon, 7 Nov 2022 17:56:51 +0000 (GMT) Message-ID: <5e44854b2781a0be6fae5c82645ac64ef9b5dccf.camel@linux.ibm.com> Subject: Re: [PATCH 04/44] KVM: Teardown VFIO ops earlier in kvm_exit() From: Eric Farman To: Sean Christopherson , Paolo Bonzini , Marc Zyngier , Huacai Chen , Aleksandar Markovic , Anup Patel , Paul Walmsley , Palmer Dabbelt , Albert Ou , Christian Borntraeger , Janosch Frank , Claudio Imbrenda , Matthew Rosato , Vitaly Kuznetsov Cc: James Morse , Alexandru Elisei , Suzuki K Poulose , Oliver Upton , Atish Patra , David Hildenbrand , kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev, kvmarm@lists.cs.columbia.edu, linux-mips@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, kvm-riscv@lists.infradead.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org, Isaku Yamahata , Fabiano Rosas , Michael Ellerman , Chao Gao , Thomas Gleixner , Yuan Yao Date: Mon, 07 Nov 2022 12:56:51 -0500 In-Reply-To: <20221102231911.3107438-5-seanjc@google.com> References: <20221102231911.3107438-1-seanjc@google.com> <20221102231911.3107438-5-seanjc@google.com> User-Agent: Evolution 3.44.4 (3.44.4-2.fc36) MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: lZlTwgd7mrqbECRxIjDdrL-RNnawny2B X-Proofpoint-GUID: bMDCUJB8k6cbTpkwMsak__06bTu4RXWC X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.219,Aquarius:18.0.895,Hydra:6.0.545,FMLib:17.11.122.1 definitions=2022-11-07_08,2022-11-07_02,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 lowpriorityscore=0 mlxscore=0 mlxlogscore=999 suspectscore=0 clxscore=1011 priorityscore=1501 malwarescore=0 impostorscore=0 phishscore=0 spamscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2210170000 definitions=main-2211070140 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20221107_095742_446085_CEBC9B13 X-CRM114-Status: GOOD ( 22.72 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org T24gV2VkLCAyMDIyLTExLTAyIGF0IDIzOjE4ICswMDAwLCBTZWFuIENocmlzdG9waGVyc29uIHdy b3RlOgo+IE1vdmUgdGhlIGNhbGwgdG8ga3ZtX3ZmaW9fb3BzX2V4aXQoKSBmdXJ0aGVyIHVwIGt2 bV9leGl0KCkgdG8gdHJ5IGFuZAo+IGJyaW5nIHNvbWUgYW1vdW50IG9mIHN5bW1ldHJ5IHRvIHRo ZSBzZXR1cCBvcmRlciBpbiBrdm1faW5pdCgpLCBhbmQKPiBtb3JlCj4gaW1wb3J0YW50bHkgc28g dGhhdCB0aGUgYXJjaCBob29rcyBhcmUgaW52b2tlZCBkZWFkIGxhc3QgYnkKPiBrdm1fZXhpdCgp Lgo+IFRoaXMgd2lsbCBhbGxvdyBhcmNoIGNvZGUgdG8gbW92ZSBhd2F5IGZyb20gdGhlIGFyY2gg aG9va3Mgd2l0aG91dAo+IGFueQo+IGNoYW5nZSBpbiBvcmRlcmluZyBiZXR3ZWVuIGFyY2ggY29k ZSBhbmQgY29tbW9uIGNvZGUgaW4ga3ZtX2V4aXQoKS4KPiAKPiBUaGF0IGt2bV92ZmlvX29wc19l eGl0KCkgaXMgY2FsbGVkIGxhc3QgYXBwZWFycyB0byBiZSAxMDAlCj4gYXJiaXRyYXJ5LsKgIEl0 Cj4gd2FzIGJvbHRlZCBvbiBhZnRlciB0aGUgZmFjdCBieSBjb21taXQgNTcxZWUxYjY4NTk4ICgi a3ZtOiB2ZmlvOiBmaXgKPiB1bnJlZ2lzdGVyIGt2bV9kZXZpY2Vfb3BzIG9mIHZmaW8iKS7CoCBU aGUgbnVsbGlmaWVkCj4ga3ZtX2RldmljZV9vcHNfdGFibGUKPiBpcyBhbHNvIGxvY2FsIHRvIGt2 bV9tYWluLmMgYW5kIGlzIHVzZWQgb25seSB3aGVuIHRoZXJlIGFyZSBhY3RpdmUKPiBWTXMsCj4g c28gdW5sZXNzIGFyY2ggY29kZSBpcyBkb2luZyBzb21ldGhpbmcgdHJ1bHkgYml6YXJyZSwgbnVs bGlmeWluZyB0aGUKPiB0YWJsZSBlYXJsaWVyIGluIGt2bV9leGl0KCkgaXMgbGl0dGxlIG1vcmUg dGhhbiBhIG5vcC4KPiAKPiBTaWduZWQtb2ZmLWJ5OiBTZWFuIENocmlzdG9waGVyc29uIDxzZWFu amNAZ29vZ2xlLmNvbT4KPiAtLS0KPiDCoHZpcnQva3ZtL2t2bV9tYWluLmMgfCAyICstCj4gwqAx IGZpbGUgY2hhbmdlZCwgMSBpbnNlcnRpb24oKyksIDEgZGVsZXRpb24oLSkKClJldmlld2VkLWJ5 OiBFcmljIEZhcm1hbiA8ZmFybWFuQGxpbnV4LmlibS5jb20+CgpfX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fXwpsaW51eC1hcm0ta2VybmVsIG1haWxpbmcgbGlz dApsaW51eC1hcm0ta2VybmVsQGxpc3RzLmluZnJhZGVhZC5vcmcKaHR0cDovL2xpc3RzLmluZnJh ZGVhZC5vcmcvbWFpbG1hbi9saXN0aW5mby9saW51eC1hcm0ta2VybmVsCg==