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Thu, 02 Mar 2023 04:32:36 -0800 (PST) X-Google-Smtp-Source: AK7set8Qqh8DuUylGvaMSEhRmjQ6NXyusIY5snskLG4JsbQlJW0Iv/hfUzS6S6JfBC5yWfTSewMT/A== X-Received: by 2002:adf:d0cb:0:b0:2c5:76bd:c0f3 with SMTP id z11-20020adfd0cb000000b002c576bdc0f3mr7551648wrh.6.1677760356195; Thu, 02 Mar 2023 04:32:36 -0800 (PST) From: Paolo Bonzini To: qemu-devel@nongnu.org Cc: David Woodhouse , Paul Durrant Subject: [PULL 42/62] kvm/i386: Add xen-gnttab-max-frames property Date: Thu, 2 Mar 2023 13:30:09 +0100 Message-Id: <20230302123029.153265-43-pbonzini@redhat.com> X-Mailer: git-send-email 2.39.1 In-Reply-To: <20230302123029.153265-1-pbonzini@redhat.com> References: <20230302123029.153265-1-pbonzini@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.133.124; envelope-from=pbonzini@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1677760649498100003 Content-Type: text/plain; charset="utf-8" From: David Woodhouse Signed-off-by: David Woodhouse Reviewed-by: Paul Durrant --- accel/kvm/kvm-all.c | 1 + include/sysemu/kvm_int.h | 1 + include/sysemu/kvm_xen.h | 1 + target/i386/kvm/kvm.c | 34 ++++++++++++++++++++++++++++++++++ target/i386/kvm/xen-emu.c | 6 ++++++ 5 files changed, 43 insertions(+) diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c index 511d3eb9a0da..3d8e400bbf86 100644 --- a/accel/kvm/kvm-all.c +++ b/accel/kvm/kvm-all.c @@ -3704,6 +3704,7 @@ static void kvm_accel_instance_init(Object *obj) s->notify_vmexit =3D NOTIFY_VMEXIT_OPTION_RUN; s->notify_window =3D 0; s->xen_version =3D 0; + s->xen_gnttab_max_frames =3D 64; } =20 /** diff --git a/include/sysemu/kvm_int.h b/include/sysemu/kvm_int.h index 7f945bc7633e..39ce4d36f684 100644 --- a/include/sysemu/kvm_int.h +++ b/include/sysemu/kvm_int.h @@ -120,6 +120,7 @@ struct KVMState uint32_t notify_window; uint32_t xen_version; uint32_t xen_caps; + uint16_t xen_gnttab_max_frames; }; =20 void kvm_memory_listener_register(KVMState *s, KVMMemoryListener *kml, diff --git a/include/sysemu/kvm_xen.h b/include/sysemu/kvm_xen.h index 2b200302810b..49afa0eb9e43 100644 --- a/include/sysemu/kvm_xen.h +++ b/include/sysemu/kvm_xen.h @@ -25,6 +25,7 @@ void *kvm_xen_get_vcpu_info_hva(uint32_t vcpu_id); void kvm_xen_inject_vcpu_callback_vector(uint32_t vcpu_id, int type); void kvm_xen_set_callback_asserted(void); int kvm_xen_set_vcpu_virq(uint32_t vcpu_id, uint16_t virq, uint16_t port); +uint16_t kvm_xen_get_gnttab_max_frames(void); =20 #define kvm_xen_has_cap(cap) (!!(kvm_xen_get_caps() & \ KVM_XEN_HVM_CONFIG_ ## cap)) diff --git a/target/i386/kvm/kvm.c b/target/i386/kvm/kvm.c index 3c3795506dbe..a73c49aabba5 100644 --- a/target/i386/kvm/kvm.c +++ b/target/i386/kvm/kvm.c @@ -5880,6 +5880,33 @@ static void kvm_arch_set_xen_version(Object *obj, Vi= sitor *v, } } =20 +static void kvm_arch_get_xen_gnttab_max_frames(Object *obj, Visitor *v, + const char *name, void *opa= que, + Error **errp) +{ + KVMState *s =3D KVM_STATE(obj); + uint16_t value =3D s->xen_gnttab_max_frames; + + visit_type_uint16(v, name, &value, errp); +} + +static void kvm_arch_set_xen_gnttab_max_frames(Object *obj, Visitor *v, + const char *name, void *opa= que, + Error **errp) +{ + KVMState *s =3D KVM_STATE(obj); + Error *error =3D NULL; + uint16_t value; + + visit_type_uint16(v, name, &value, &error); + if (error) { + error_propagate(errp, error); + return; + } + + s->xen_gnttab_max_frames =3D value; +} + void kvm_arch_accel_class_init(ObjectClass *oc) { object_class_property_add_enum(oc, "notify-vmexit", "NotifyVMexitOptio= n", @@ -5905,6 +5932,13 @@ void kvm_arch_accel_class_init(ObjectClass *oc) "Xen version to be emulated " "(in XENVER_version form " "e.g. 0x4000a for 4.10)"); + + object_class_property_add(oc, "xen-gnttab-max-frames", "uint16", + kvm_arch_get_xen_gnttab_max_frames, + kvm_arch_set_xen_gnttab_max_frames, + NULL, NULL); + object_class_property_set_description(oc, "xen-gnttab-max-frames", + "Maximum number of grant table f= rames"); } =20 void kvm_set_max_apic_id(uint32_t max_apic_id) diff --git a/target/i386/kvm/xen-emu.c b/target/i386/kvm/xen-emu.c index 9e22c9fa025f..46be63172686 100644 --- a/target/i386/kvm/xen-emu.c +++ b/target/i386/kvm/xen-emu.c @@ -1238,6 +1238,12 @@ int kvm_xen_handle_exit(X86CPU *cpu, struct kvm_xen_= exit *exit) return 0; } =20 +uint16_t kvm_xen_get_gnttab_max_frames(void) +{ + KVMState *s =3D KVM_STATE(current_accel()); + return s->xen_gnttab_max_frames; +} + int kvm_put_xen_state(CPUState *cs) { X86CPU *cpu =3D X86_CPU(cs); --=20 2.39.1