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AJvYcCXX2eBHrpm/tpKcZKwePmAs9gWVHge2jBVK2gtPKgSpqkN1OmzQh+oCOKyvVGJ8/LWE9xXHBY4ZE5u0LM0=@vger.kernel.org X-Gm-Message-State: AOJu0YzhKarA+YN0wpWUGQwPAluQf3Nb7J06eZPsjb6dwyhTe8YpN3cn LNj/gXM9ubY91dkqlpNeu4X0H/lHT0RDwgcgIfeSkmWzgRXkKXdu2FKpxSun+2+TA0wmlBAvTa3 CdORBrtUt0ig60n1lJ6lf0g== X-Google-Smtp-Source: AGHT+IGRuVATub0VagSwSO594ph7F/RA6BsWrOduHNPJT0NSOVEpTFRu1SVjCYkpWfQ84SvEpdSv99cmJKRK2o6P X-Received: from plbka7.prod.google.com ([2002:a17:903:3347:b0:22e:4bf7:1cb7]) (user=jthoughton job=prod-delivery.src-stubby-dispatcher) by 2002:a17:902:cf0e:b0:234:d7b2:2aa9 with SMTP id d9443c01a7336-2366b1221femr249131655ad.29.1750220682173; Tue, 17 Jun 2025 21:24:42 -0700 (PDT) Date: Wed, 18 Jun 2025 04:24:19 +0000 In-Reply-To: <20250618042424.330664-1-jthoughton@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20250618042424.330664-1-jthoughton@google.com> X-Mailer: git-send-email 2.50.0.rc2.696.g1fc2a0284f-goog Message-ID: <20250618042424.330664-11-jthoughton@google.com> Subject: [PATCH v3 10/15] KVM: selftests: Add va_start/end into uffd_desc From: James Houghton To: Paolo Bonzini , Sean Christopherson , Oliver Upton Cc: Jonathan Corbet , Marc Zyngier , Yan Zhao , James Houghton , Nikita Kalyazin , Anish Moorthy , Peter Gonda , Peter Xu , David Matlack , wei.w.wang@intel.com, kvm@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" This will be used for the selftest to look up which userfaultfd we should be using when handling a KVM Userfault (in the event KVM Userfault and userfaultfd are being used together). Signed-off-by: James Houghton --- tools/testing/selftests/kvm/include/userfaultfd_util.h | 2 ++ tools/testing/selftests/kvm/lib/userfaultfd_util.c | 2 ++ 2 files changed, 4 insertions(+) diff --git a/tools/testing/selftests/kvm/include/userfaultfd_util.h b/tools= /testing/selftests/kvm/include/userfaultfd_util.h index 60f7f9d435dc2..b62fecdfe745c 100644 --- a/tools/testing/selftests/kvm/include/userfaultfd_util.h +++ b/tools/testing/selftests/kvm/include/userfaultfd_util.h @@ -30,6 +30,8 @@ struct uffd_desc { int *pipefds; pthread_t *readers; struct uffd_reader_args *reader_args; + void *va_start; + void *va_end; }; =20 struct uffd_desc *uffd_setup_demand_paging(int uffd_mode, useconds_t delay, diff --git a/tools/testing/selftests/kvm/lib/userfaultfd_util.c b/tools/tes= ting/selftests/kvm/lib/userfaultfd_util.c index 5bde176cedd59..31d38b3a9d127 100644 --- a/tools/testing/selftests/kvm/lib/userfaultfd_util.c +++ b/tools/testing/selftests/kvm/lib/userfaultfd_util.c @@ -152,6 +152,8 @@ struct uffd_desc *uffd_setup_demand_paging(int uffd_mod= e, useconds_t delay, expected_ioctls, "missing userfaultfd ioctls"); =20 uffd_desc->uffd =3D uffd; + uffd_desc->va_start =3D hva; + uffd_desc->va_end =3D (char *)hva + len; for (i =3D 0; i < uffd_desc->num_readers; ++i) { int pipes[2]; =20 --=20 2.50.0.rc2.692.g299adb8693-goog