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Tue, 10 Mar 2020 14:55:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1583852128; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=MAp8RdDEyAKvxcS3g2UpeYtP12iSpRle1qI8h18ScZY=; b=OhqzRouPNhrhjV/eOGWV10qD44lLE/yMRhdxh8sViESmbqDKWzHFgzSaqzANanrzxbT87q LIi1PaTaoFtytImPlPgMWMjCPsbwpNMezKU68km5JML2n9tizJqvHbKsaf3Jxe9nAiuq22 yM4jyTHq8MdIaGfthfA6nII6/3TO1AA= X-MC-Unique: Q_qcSjMWMwmfTyooyI3Q5w-1 From: Eric Auger To: eric.auger.pro@gmail.com, eric.auger@redhat.com, maz@kernel.org, kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org, qemu-devel@nongnu.org, qemu-arm@nongnu.org Subject: [kvm-unit-tests PATCH v5 12/13] arm/arm64: ITS: migration tests Date: Tue, 10 Mar 2020 15:54:09 +0100 Message-Id: <20200310145410.26308-13-eric.auger@redhat.com> In-Reply-To: <20200310145410.26308-1-eric.auger@redhat.com> References: <20200310145410.26308-1-eric.auger@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 205.139.110.61 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: peter.maydell@linaro.org, drjones@redhat.com, andre.przywara@arm.com, thuth@redhat.com, yuzenghui@huawei.com, alexandru.elisei@arm.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" This test maps LPIs (populates the device table, the collection table, interrupt translation tables, configuration table), migrates and make sure the translation is correct on the destination. Signed-off-by: Eric Auger --- v4 -> v5: - move stub from header to arm/gic.c v3 -> v4: - assert in its_get_device/collection if the id is not found --- arm/gic.c | 59 ++++++++++++++++++++++++++++++++++---- arm/unittests.cfg | 8 ++++++ lib/arm64/asm/gic-v3-its.h | 3 ++ lib/arm64/gic-v3-its.c | 22 ++++++++++++++ 4 files changed, 86 insertions(+), 6 deletions(-) diff --git a/arm/gic.c b/arm/gic.c index 32b709e..b8fbc13 100644 --- a/arm/gic.c +++ b/arm/gic.c @@ -590,6 +590,7 @@ static void gic_test_mmio(void) =20 static void test_its_introspection(void) {} static void test_its_trigger(void) {} +static void test_its_migration(void) {} =20 #else /* __aarch64__ */ =20 @@ -658,13 +659,19 @@ static int its_prerequisites(int nb_cpus) return 0; } =20 -static void test_its_trigger(void) +/* + * Setup the configuration for those mappings: + * dev_id=3D2 event=3D20 -> vcpu 3, intid=3D8195 + * dev_id=3D7 event=3D255 -> vcpu 2, intid=3D8196 + * LPIs ready to hit + */ +static int its_setup1(void) { struct its_collection *col3, *col2; struct its_device *dev2, *dev7; =20 if (its_prerequisites(4)) - return; + return -1; =20 dev2 =3D its_create_device(2 /* dev id */, 8 /* nb_ites */); dev7 =3D its_create_device(7 /* dev id */, 8 /* nb_ites */); @@ -678,14 +685,10 @@ static void test_its_trigger(void) its_send_invall(col2); its_send_invall(col3); =20 - report_prefix_push("int"); /* * dev=3D2, eventid=3D20 -> lpi=3D 8195, col=3D3 * dev=3D7, eventid=3D255 -> lpi=3D 8196, col=3D2 - * Trigger dev2, eventid=3D20 and dev7, eventid=3D255 - * Check both LPIs hit */ - its_send_mapd(dev2, true); its_send_mapd(dev7, true); =20 @@ -694,6 +697,23 @@ static void test_its_trigger(void) =20 its_send_mapti(dev2, 8195 /* lpi id */, 20 /* event id */, col3); its_send_mapti(dev7, 8196 /* lpi id */, 255 /* event id */, col2); + return 0; +} + +static void test_its_trigger(void) +{ + struct its_collection *col3, *col2; + struct its_device *dev2, *dev7; + + if (its_setup1()) + return; + + col3 =3D its_get_collection(3); + col2 =3D its_get_collection(2); + dev2 =3D its_get_device(2); + dev7 =3D its_get_device(7); + + report_prefix_push("int"); =20 lpi_stats_expect(3, 8195); its_send_int(dev2, 20); @@ -756,6 +776,29 @@ static void test_its_trigger(void) check_lpi_stats("no LPI after collection unmap"); report_prefix_pop(); } + +static void test_its_migration(void) +{ + struct its_device *dev2, *dev7; + + if (its_setup1()) + return; + + dev2 =3D its_get_device(2); + dev7 =3D its_get_device(7); + + puts("Now migrate the VM, then press a key to continue...\n"); + (void)getchar(); + report_info("Migration complete"); + + lpi_stats_expect(3, 8195); + its_send_int(dev2, 20); + check_lpi_stats("dev2/eventid=3D20 triggers LPI 8195 en PE #3 after migra= tion"); + + lpi_stats_expect(2, 8196); + its_send_int(dev7, 255); + check_lpi_stats("dev7/eventid=3D255 triggers LPI 8196 on PE #2 after migr= ation"); +} #endif =20 int main(int argc, char **argv) @@ -793,6 +836,10 @@ int main(int argc, char **argv) report_prefix_push(argv[1]); test_its_trigger(); report_prefix_pop(); + } else if (!strcmp(argv[1], "its-migration")) { + report_prefix_push(argv[1]); + test_its_migration(); + report_prefix_pop(); } else if (strcmp(argv[1], "its-introspection") =3D=3D 0) { report_prefix_push(argv[1]); test_its_introspection(); diff --git a/arm/unittests.cfg b/arm/unittests.cfg index b9a7a2c..480adec 100644 --- a/arm/unittests.cfg +++ b/arm/unittests.cfg @@ -136,6 +136,14 @@ extra_params =3D -machine gic-version=3D3 -append 'its= -trigger' groups =3D its arch =3D arm64 =20 +[its-migration] +file =3D gic.flat +smp =3D $MAX_SMP +accel =3D kvm +extra_params =3D -machine gic-version=3D3 -append 'its-migration' +groups =3D its migration +arch =3D arm64 + # Test PSCI emulation [psci] file =3D psci.flat diff --git a/lib/arm64/asm/gic-v3-its.h b/lib/arm64/asm/gic-v3-its.h index 889d6ce..e9f89c1 100644 --- a/lib/arm64/asm/gic-v3-its.h +++ b/lib/arm64/asm/gic-v3-its.h @@ -166,4 +166,7 @@ extern void __its_send_sync(struct its_collection *col,= bool verbose); #define its_send_movi_nv(dev, col, id) __its_send_movi(dev, col, id, fal= se) #define its_send_sync_nv(col) __its_send_sync(col, false) =20 +extern struct its_device *its_get_device(u32 id); +extern struct its_collection *its_get_collection(u32 id); + #endif /* _ASMARM64_GIC_V3_ITS_H_ */ diff --git a/lib/arm64/gic-v3-its.c b/lib/arm64/gic-v3-its.c index 442dcf0..9c9fa60 100644 --- a/lib/arm64/gic-v3-its.c +++ b/lib/arm64/gic-v3-its.c @@ -148,3 +148,25 @@ struct its_collection *its_create_collection(u32 col_i= d, u32 pe) its_data.nr_collections++; return new; } + +struct its_device *its_get_device(u32 id) +{ + int i; + + for (i =3D 0; i < GITS_MAX_DEVICES; i++) { + if (its_data.devices[i].device_id =3D=3D id) + return &its_data.devices[i]; + } + assert(0); +} + +struct its_collection *its_get_collection(u32 id) +{ + int i; + + for (i =3D 0; i < GITS_MAX_COLLECTIONS; i++) { + if (its_data.collections[i].col_id =3D=3D id) + return &its_data.collections[i]; + } + assert(0); +} --=20 2.20.1