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Tue, 12 Dec 2023 07:28:55 -0800 (PST) Date: Tue, 12 Dec 2023 07:28:54 -0800 In-Reply-To: Mime-Version: 1.0 References: <20220921003201.1441511-11-seanjc@google.com> <20231207010302.2240506-1-jmattson@google.com> Message-ID: Subject: Re: [PATCH v4 10/12] KVM: x86: never write to memory from kvm_vcpu_check_block() From: Sean Christopherson To: Jim Mattson Cc: alexandru.elisei@arm.com, anup@brainfault.org, aou@eecs.berkeley.edu, atishp@atishpatra.org, borntraeger@linux.ibm.com, chenhuacai@kernel.org, david@redhat.com, frankja@linux.ibm.com, imbrenda@linux.ibm.com, james.morse@arm.com, kvm-riscv@lists.infradead.org, kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-mips@vger.kernel.org, linux-riscv@lists.infradead.org, linuxppc-dev@lists.ozlabs.org, maz@kernel.org, mlevitsk@redhat.com, oliver.upton@linux.dev, palmer@dabbelt.com, paul.walmsley@sifive.com, pbonzini@redhat.com, suzuki.poulose@arm.com X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20231212_072859_698619_BBEF9938 X-CRM114-Status: GOOD ( 14.20 ) X-BeenThere: linux-riscv@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-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org T24gU3VuLCBEZWMgMTAsIDIwMjMsIEppbSBNYXR0c29uIHdyb3RlOgo+IE9uIFRodSwgRGVjIDcs IDIwMjMgYXQgODoyMeKAr0FNIFNlYW4gQ2hyaXN0b3BoZXJzb24gPHNlYW5qY0Bnb29nbGUuY29t PiB3cm90ZToKPiA+IERvaC4gIFdlIGdvdCB0aGUgbGVzcyBvYnZpb3VzIGNhc2VzIGFuZCBtaXNz ZWQgdGhlIG9idmlvdXMgb25lLgo+ID4KPiA+IFVnaCwgYW5kIHdlIGFsc28gbWlzc2VkIGEgcmVs YXRlZCBtZXNzIGluIGt2bV9ndWVzdF9hcGljX2hhc19pbnRlcnJ1cHQoKS4gIFRoYXQKPiA+IHRo aW5nIHNob3VsZCByZWFsbHkgYmUgZm9sZGVkIGludG8gdm14X2hhc19uZXN0ZWRfZXZlbnRzKCku Cj4gPgo+ID4gR29vZCBncmF2eS4gIEFuZCB2bXhfaW50ZXJydXB0X2Jsb2NrZWQoKSBkb2VzIHRo ZSB3cm9uZyB0aGluZyBiZWNhdXNlIHRoYXQKPiA+IHNwZWNpZmljYWxseSBjaGVja3MgaWYgTDEg aW50ZXJydXB0cyBhcmUgYmxvY2tlZC4KPiA+Cj4gPiBDb21waWxlIHRlc3RlZCBvbmx5LCBhbmQg ZGVmaW5pdGVseSBuZWVkcyB0byBiZSBjaHVua2VkIGludG8gbXVsdGlwbGUgcGF0Y2hlcywKPiA+ IGJ1dCBJIHRoaW5rIHNvbWV0aGluZyBsaWtlIHRoaXMgbWVzcz8KPiAKPiBUaGUgcHJvcG9zZWQg cGF0Y2ggZG9lcyBub3QgZml4IHRoZSBwcm9ibGVtLiBJbiBmYWN0LCBpdCBtZXNzZXMgdGhpbmdz Cj4gdXAgc28gbXVjaCB0aGF0IEkgZG9uJ3QgZ2V0IGFueSB0ZXN0IHJlc3VsdHMgYmFjay4KCkRy YXQuCgo+IEdvb2dsZSBoYXMgYW4gaW50ZXJuYWwgSy1VLVQgdGVzdCB0aGF0IGRlbW9uc3RyYXRl cyB0aGUgcHJvYmxlbS4gSQo+IHdpbGwgcG9zdCBpdCBzb29uLgoKUmVjZWl2ZWQsIEknbGwgZGln IGluIHNvb25pc2gsIHRob3VnaCAic29vbmlzaCIgbWlnaHQgdW5mb3J0dW5hdGVseSBtaWdodCBt ZWFuCjIwMjQuCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f XwpsaW51eC1yaXNjdiBtYWlsaW5nIGxpc3QKbGludXgtcmlzY3ZAbGlzdHMuaW5mcmFkZWFkLm9y ZwpodHRwOi8vbGlzdHMuaW5mcmFkZWFkLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2xpbnV4LXJpc2N2 Cg==