| Message ID | 20200110145412.14937-17-eric.auger@redhat.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | arm/arm64: Add ITS tests | expand |
On Fri, Jan 10, 2020 at 03:54:12PM +0100, Eric Auger wrote: > Add two new migration tests. One testing the migration of > a topology where collection were unmapped. The second test > checks the migration of the pending table. > > Signed-off-by: Eric Auger <eric.auger@redhat.com> > --- > arm/gic.c | 148 ++++++++++++++++++++++++++++++++++++++++++++++ > arm/unittests.cfg | 16 ++++- > 2 files changed, 163 insertions(+), 1 deletion(-) > > diff --git a/arm/gic.c b/arm/gic.c > index bf4b5ba..cb976c3 100644 > --- a/arm/gic.c > +++ b/arm/gic.c > @@ -170,6 +170,7 @@ static void lpi_handler(struct pt_regs *regs __unused) > smp_rmb(); /* pairs with wmb in lpi_stats_expect */ > lpi_stats.observed.cpu_id = smp_processor_id(); > lpi_stats.observed.lpi_id = irqnr; > + acked[lpi_stats.observed.cpu_id]++; > smp_wmb(); /* pairs with rmb in check_lpi_stats */ > } > > @@ -207,6 +208,18 @@ static void check_lpi_stats(void) > } > } > > +static void check_lpi_hits(int *expected) > +{ > + int i; > + > + for (i = 0; i < nr_cpus; i++) { > + if (acked[i] != expected[i]) > + report(false, "expected %d LPIs on PE #%d, %d observed", > + expected[i], i, acked[i]); > + } > + report(true, "check LPI on all vcpus"); > +} > + > static void gicv2_ipi_send_self(void) > { > writel(2 << 24 | IPI_IRQ, gicv2_dist_base() + GICD_SGIR); > @@ -641,6 +654,18 @@ static int its_prerequisites(int nb_cpus) > return 0; > } > > +static void set_lpi(struct its_device *dev, u32 eventid, u32 physid, > + struct its_collection *col) > +{ > + if (!dev || !col) > + report_abort("wrong device or collection"); > + > + its_send_mapti(dev, physid, eventid, col); > + > + set_lpi_config(physid, LPI_PROP_DEFAULT); > + its_send_invall(col); > +} > + > /* > * Setup the configuration for those mappings: > * dev_id=2 event=20 -> vcpu 3, intid=8195 > @@ -765,6 +790,121 @@ static void test_its_migration(void) > check_lpi_stats(); > } > > +static void test_migrate_unmapped_collection(void) > +{ > + struct its_collection *col; > + struct its_device *dev2, *dev7; > + u8 config; > + > + if (its_setup1()) > + return; > + > + col = its_create_collection(nr_cpus - 1, nr_cpus - 1); > + dev2 = its_get_device(2); > + dev7 = its_get_device(7); > + > + /* MAPTI with the collection unmapped */ > + set_lpi(dev2, 0, 8192, col); > + > + puts("Now migrate the VM, then press a key to continue...\n"); > + (void)getchar(); > + report(true, "Migration complete"); > + > + /* on the destination, map the collection */ > + its_send_mapc(col, true); > + > + lpi_stats_expect(2, 8196); > + its_send_int(dev7, 255); > + check_lpi_stats(); > + > + config = get_lpi_config(8192); > + report(config == LPI_PROP_DEFAULT, > + "Config of LPI 8192 was properly migrated"); > + > + lpi_stats_expect(nr_cpus - 1, 8192); > + its_send_int(dev2, 0); > + check_lpi_stats(); > + > + /* unmap the collection */ > + its_send_mapc(col, false); > + > + lpi_stats_expect(-1, -1); > + its_send_int(dev2, 0); > + check_lpi_stats(); > + > + /* remap event 0 onto lpiid 8193 */ > + set_lpi(dev2, 0, 8193, col); > + lpi_stats_expect(-1, -1); > + its_send_int(dev2, 0); > + check_lpi_stats(); > + > + /* remap the collection */ > + its_send_mapc(col, true); > + lpi_stats_expect(nr_cpus - 1, 8193); > +} > + > +static void test_its_pending_migration(void) > +{ > + struct its_device *dev; > + struct its_collection *collection[2]; > + int expected[NR_CPUS]; > + u64 pendbaser; > + void *ptr; > + int i; > + > + if (its_prerequisites(4)) > + return; > + > + dev = its_create_device(2 /* dev id */, 8 /* nb_ites */); > + its_send_mapd(dev, true); > + > + collection[0] = its_create_collection(nr_cpus - 1, nr_cpus - 1); > + collection[1] = its_create_collection(nr_cpus - 2, nr_cpus - 2); > + its_send_mapc(collection[0], true); > + its_send_mapc(collection[1], true); > + > + /* disable lpi at redist level */ > + gicv3_rdist_ctrl_lpi(nr_cpus - 1, false); > + gicv3_rdist_ctrl_lpi(nr_cpus - 2, false); > + > + /* even lpis are assigned to even cpu */ > + for (i = 0; i < 256; i++) { > + struct its_collection *col = i % 2 ? collection[0] : > + collection[1]; > + int vcpu = col->target_address >> 16; > + > + its_send_mapti(dev, 8192 + i, i, col); > + set_lpi_config(8192 + i, LPI_PROP_DEFAULT); > + set_pending_table_bit(vcpu, 8192 + i, true); > + } > + its_send_invall(collection[0]); > + its_send_invall(collection[1]); > + > + /* Set the PTZ bit on each pendbaser */ > + > + expected[nr_cpus - 1] = 128; > + expected[nr_cpus - 2] = 128; > + > + ptr = gicv3_data.redist_base[nr_cpus - 1] + GICR_PENDBASER; > + pendbaser = readq(ptr); > + writeq(pendbaser & ~GICR_PENDBASER_PTZ, ptr); > + > + ptr = gicv3_data.redist_base[nr_cpus - 2] + GICR_PENDBASER; > + pendbaser = readq(ptr); > + writeq(pendbaser & ~GICR_PENDBASER_PTZ, ptr); > + > + gicv3_rdist_ctrl_lpi(nr_cpus - 1, true); > + gicv3_rdist_ctrl_lpi(nr_cpus - 2, true); > + > + puts("Now migrate the VM, then press a key to continue...\n"); > + (void)getchar(); > + report(true, "Migration complete"); > + > + mdelay(1000); > + > + check_lpi_hits(expected); > +} > + > int main(int argc, char **argv) > { > if (!gic_init()) { > @@ -803,6 +943,14 @@ int main(int argc, char **argv) > report_prefix_push(argv[1]); > test_its_migration(); > report_prefix_pop(); > + } else if (!strcmp(argv[1], "its-pending-migration")) { > + report_prefix_push(argv[1]); > + test_its_pending_migration(); > + report_prefix_pop(); > + } else if (!strcmp(argv[1], "its-migrate-unmapped-collection")) { > + report_prefix_push(argv[1]); > + test_migrate_unmapped_collection(); > + report_prefix_pop(); > } else if (strcmp(argv[1], "its-introspection") == 0) { > report_prefix_push(argv[1]); > test_its_introspection(); > diff --git a/arm/unittests.cfg b/arm/unittests.cfg > index 29e2efc..911f0b7 100644 > --- a/arm/unittests.cfg > +++ b/arm/unittests.cfg > @@ -145,7 +145,21 @@ file = gic.flat > smp = $MAX_SMP > accel = kvm > extra_params = -machine gic-version=3 -append 'its-migration' > -groups = its migration > +groups = migration > + > +[its-pending-migration] > +file = gic.flat > +smp = $MAX_SMP > +accel = kvm > +extra_params = -machine gic-version=3 -append 'its-pending-migration' > +groups = migration > + > +[its-migrate-unmapped-collection] > +file = gic.flat > +smp = $MAX_SMP > +accel = kvm > +extra_params = -machine gic-version=3 -append 'its-migrate-unmapped-collection' > +groups = migration Why drop the 'its' group? Thanks, drew > > # Test PSCI emulation > [psci] > -- > 2.20.1 >
Hi Drew, On 1/13/20 7:45 PM, Andrew Jones wrote: > On Fri, Jan 10, 2020 at 03:54:12PM +0100, Eric Auger wrote: >> Add two new migration tests. One testing the migration of >> a topology where collection were unmapped. The second test >> checks the migration of the pending table. >> >> Signed-off-by: Eric Auger <eric.auger@redhat.com> >> --- >> arm/gic.c | 148 ++++++++++++++++++++++++++++++++++++++++++++++ >> arm/unittests.cfg | 16 ++++- >> 2 files changed, 163 insertions(+), 1 deletion(-) >> >> diff --git a/arm/gic.c b/arm/gic.c >> index bf4b5ba..cb976c3 100644 >> --- a/arm/gic.c >> +++ b/arm/gic.c >> @@ -170,6 +170,7 @@ static void lpi_handler(struct pt_regs *regs __unused) >> smp_rmb(); /* pairs with wmb in lpi_stats_expect */ >> lpi_stats.observed.cpu_id = smp_processor_id(); >> lpi_stats.observed.lpi_id = irqnr; >> + acked[lpi_stats.observed.cpu_id]++; >> smp_wmb(); /* pairs with rmb in check_lpi_stats */ >> } >> >> @@ -207,6 +208,18 @@ static void check_lpi_stats(void) >> } >> } >> >> +static void check_lpi_hits(int *expected) >> +{ >> + int i; >> + >> + for (i = 0; i < nr_cpus; i++) { >> + if (acked[i] != expected[i]) >> + report(false, "expected %d LPIs on PE #%d, %d observed", >> + expected[i], i, acked[i]); >> + } >> + report(true, "check LPI on all vcpus"); >> +} >> + >> static void gicv2_ipi_send_self(void) >> { >> writel(2 << 24 | IPI_IRQ, gicv2_dist_base() + GICD_SGIR); >> @@ -641,6 +654,18 @@ static int its_prerequisites(int nb_cpus) >> return 0; >> } >> >> +static void set_lpi(struct its_device *dev, u32 eventid, u32 physid, >> + struct its_collection *col) >> +{ >> + if (!dev || !col) >> + report_abort("wrong device or collection"); >> + >> + its_send_mapti(dev, physid, eventid, col); >> + >> + set_lpi_config(physid, LPI_PROP_DEFAULT); >> + its_send_invall(col); >> +} >> + >> /* >> * Setup the configuration for those mappings: >> * dev_id=2 event=20 -> vcpu 3, intid=8195 >> @@ -765,6 +790,121 @@ static void test_its_migration(void) >> check_lpi_stats(); >> } >> >> +static void test_migrate_unmapped_collection(void) >> +{ >> + struct its_collection *col; >> + struct its_device *dev2, *dev7; >> + u8 config; >> + >> + if (its_setup1()) >> + return; >> + >> + col = its_create_collection(nr_cpus - 1, nr_cpus - 1); >> + dev2 = its_get_device(2); >> + dev7 = its_get_device(7); >> + >> + /* MAPTI with the collection unmapped */ >> + set_lpi(dev2, 0, 8192, col); >> + >> + puts("Now migrate the VM, then press a key to continue...\n"); >> + (void)getchar(); >> + report(true, "Migration complete"); >> + >> + /* on the destination, map the collection */ >> + its_send_mapc(col, true); >> + >> + lpi_stats_expect(2, 8196); >> + its_send_int(dev7, 255); >> + check_lpi_stats(); >> + >> + config = get_lpi_config(8192); >> + report(config == LPI_PROP_DEFAULT, >> + "Config of LPI 8192 was properly migrated"); >> + >> + lpi_stats_expect(nr_cpus - 1, 8192); >> + its_send_int(dev2, 0); >> + check_lpi_stats(); >> + >> + /* unmap the collection */ >> + its_send_mapc(col, false); >> + >> + lpi_stats_expect(-1, -1); >> + its_send_int(dev2, 0); >> + check_lpi_stats(); >> + >> + /* remap event 0 onto lpiid 8193 */ >> + set_lpi(dev2, 0, 8193, col); >> + lpi_stats_expect(-1, -1); >> + its_send_int(dev2, 0); >> + check_lpi_stats(); >> + >> + /* remap the collection */ >> + its_send_mapc(col, true); >> + lpi_stats_expect(nr_cpus - 1, 8193); >> +} >> + >> +static void test_its_pending_migration(void) >> +{ >> + struct its_device *dev; >> + struct its_collection *collection[2]; >> + int expected[NR_CPUS]; >> + u64 pendbaser; >> + void *ptr; >> + int i; >> + >> + if (its_prerequisites(4)) >> + return; >> + >> + dev = its_create_device(2 /* dev id */, 8 /* nb_ites */); >> + its_send_mapd(dev, true); >> + >> + collection[0] = its_create_collection(nr_cpus - 1, nr_cpus - 1); >> + collection[1] = its_create_collection(nr_cpus - 2, nr_cpus - 2); >> + its_send_mapc(collection[0], true); >> + its_send_mapc(collection[1], true); >> + >> + /* disable lpi at redist level */ >> + gicv3_rdist_ctrl_lpi(nr_cpus - 1, false); >> + gicv3_rdist_ctrl_lpi(nr_cpus - 2, false); >> + >> + /* even lpis are assigned to even cpu */ >> + for (i = 0; i < 256; i++) { >> + struct its_collection *col = i % 2 ? collection[0] : >> + collection[1]; >> + int vcpu = col->target_address >> 16; >> + >> + its_send_mapti(dev, 8192 + i, i, col); >> + set_lpi_config(8192 + i, LPI_PROP_DEFAULT); >> + set_pending_table_bit(vcpu, 8192 + i, true); >> + } >> + its_send_invall(collection[0]); >> + its_send_invall(collection[1]); >> + >> + /* Set the PTZ bit on each pendbaser */ >> + >> + expected[nr_cpus - 1] = 128; >> + expected[nr_cpus - 2] = 128; >> + >> + ptr = gicv3_data.redist_base[nr_cpus - 1] + GICR_PENDBASER; >> + pendbaser = readq(ptr); >> + writeq(pendbaser & ~GICR_PENDBASER_PTZ, ptr); >> + >> + ptr = gicv3_data.redist_base[nr_cpus - 2] + GICR_PENDBASER; >> + pendbaser = readq(ptr); >> + writeq(pendbaser & ~GICR_PENDBASER_PTZ, ptr); >> + >> + gicv3_rdist_ctrl_lpi(nr_cpus - 1, true); >> + gicv3_rdist_ctrl_lpi(nr_cpus - 2, true); >> + >> + puts("Now migrate the VM, then press a key to continue...\n"); >> + (void)getchar(); >> + report(true, "Migration complete"); >> + >> + mdelay(1000); >> + >> + check_lpi_hits(expected); >> +} >> + >> int main(int argc, char **argv) >> { >> if (!gic_init()) { >> @@ -803,6 +943,14 @@ int main(int argc, char **argv) >> report_prefix_push(argv[1]); >> test_its_migration(); >> report_prefix_pop(); >> + } else if (!strcmp(argv[1], "its-pending-migration")) { >> + report_prefix_push(argv[1]); >> + test_its_pending_migration(); >> + report_prefix_pop(); >> + } else if (!strcmp(argv[1], "its-migrate-unmapped-collection")) { >> + report_prefix_push(argv[1]); >> + test_migrate_unmapped_collection(); >> + report_prefix_pop(); >> } else if (strcmp(argv[1], "its-introspection") == 0) { >> report_prefix_push(argv[1]); >> test_its_introspection(); >> diff --git a/arm/unittests.cfg b/arm/unittests.cfg >> index 29e2efc..911f0b7 100644 >> --- a/arm/unittests.cfg >> +++ b/arm/unittests.cfg >> @@ -145,7 +145,21 @@ file = gic.flat >> smp = $MAX_SMP >> accel = kvm >> extra_params = -machine gic-version=3 -append 'its-migration' >> -groups = its migration >> +groups = migration >> + >> +[its-pending-migration] >> +file = gic.flat >> +smp = $MAX_SMP >> +accel = kvm >> +extra_params = -machine gic-version=3 -append 'its-pending-migration' >> +groups = migration >> + >> +[its-migrate-unmapped-collection] >> +file = gic.flat >> +smp = $MAX_SMP >> +accel = kvm >> +extra_params = -machine gic-version=3 -append 'its-migrate-unmapped-collection' >> +groups = migration > > Why drop the 'its' group? I think the test only works with the migration group. Otherwise it stalls due to the migration infrastructure. I will double check. Thanks Eric > > Thanks, > drew > >> >> # Test PSCI emulation >> [psci] >> -- >> 2.20.1 >>
diff --git a/arm/gic.c b/arm/gic.c index bf4b5ba..cb976c3 100644 --- a/arm/gic.c +++ b/arm/gic.c @@ -170,6 +170,7 @@ static void lpi_handler(struct pt_regs *regs __unused) smp_rmb(); /* pairs with wmb in lpi_stats_expect */ lpi_stats.observed.cpu_id = smp_processor_id(); lpi_stats.observed.lpi_id = irqnr; + acked[lpi_stats.observed.cpu_id]++; smp_wmb(); /* pairs with rmb in check_lpi_stats */ } @@ -207,6 +208,18 @@ static void check_lpi_stats(void) } } +static void check_lpi_hits(int *expected) +{ + int i; + + for (i = 0; i < nr_cpus; i++) { + if (acked[i] != expected[i]) + report(false, "expected %d LPIs on PE #%d, %d observed", + expected[i], i, acked[i]); + } + report(true, "check LPI on all vcpus"); +} + static void gicv2_ipi_send_self(void) { writel(2 << 24 | IPI_IRQ, gicv2_dist_base() + GICD_SGIR); @@ -641,6 +654,18 @@ static int its_prerequisites(int nb_cpus) return 0; } +static void set_lpi(struct its_device *dev, u32 eventid, u32 physid, + struct its_collection *col) +{ + if (!dev || !col) + report_abort("wrong device or collection"); + + its_send_mapti(dev, physid, eventid, col); + + set_lpi_config(physid, LPI_PROP_DEFAULT); + its_send_invall(col); +} + /* * Setup the configuration for those mappings: * dev_id=2 event=20 -> vcpu 3, intid=8195 @@ -765,6 +790,121 @@ static void test_its_migration(void) check_lpi_stats(); } +static void test_migrate_unmapped_collection(void) +{ + struct its_collection *col; + struct its_device *dev2, *dev7; + u8 config; + + if (its_setup1()) + return; + + col = its_create_collection(nr_cpus - 1, nr_cpus - 1); + dev2 = its_get_device(2); + dev7 = its_get_device(7); + + /* MAPTI with the collection unmapped */ + set_lpi(dev2, 0, 8192, col); + + puts("Now migrate the VM, then press a key to continue...\n"); + (void)getchar(); + report(true, "Migration complete"); + + /* on the destination, map the collection */ + its_send_mapc(col, true); + + lpi_stats_expect(2, 8196); + its_send_int(dev7, 255); + check_lpi_stats(); + + config = get_lpi_config(8192); + report(config == LPI_PROP_DEFAULT, + "Config of LPI 8192 was properly migrated"); + + lpi_stats_expect(nr_cpus - 1, 8192); + its_send_int(dev2, 0); + check_lpi_stats(); + + /* unmap the collection */ + its_send_mapc(col, false); + + lpi_stats_expect(-1, -1); + its_send_int(dev2, 0); + check_lpi_stats(); + + /* remap event 0 onto lpiid 8193 */ + set_lpi(dev2, 0, 8193, col); + lpi_stats_expect(-1, -1); + its_send_int(dev2, 0); + check_lpi_stats(); + + /* remap the collection */ + its_send_mapc(col, true); + lpi_stats_expect(nr_cpus - 1, 8193); +} + +static void test_its_pending_migration(void) +{ + struct its_device *dev; + struct its_collection *collection[2]; + int expected[NR_CPUS]; + u64 pendbaser; + void *ptr; + int i; + + if (its_prerequisites(4)) + return; + + dev = its_create_device(2 /* dev id */, 8 /* nb_ites */); + its_send_mapd(dev, true); + + collection[0] = its_create_collection(nr_cpus - 1, nr_cpus - 1); + collection[1] = its_create_collection(nr_cpus - 2, nr_cpus - 2); + its_send_mapc(collection[0], true); + its_send_mapc(collection[1], true); + + /* disable lpi at redist level */ + gicv3_rdist_ctrl_lpi(nr_cpus - 1, false); + gicv3_rdist_ctrl_lpi(nr_cpus - 2, false); + + /* even lpis are assigned to even cpu */ + for (i = 0; i < 256; i++) { + struct its_collection *col = i % 2 ? collection[0] : + collection[1]; + int vcpu = col->target_address >> 16; + + its_send_mapti(dev, 8192 + i, i, col); + set_lpi_config(8192 + i, LPI_PROP_DEFAULT); + set_pending_table_bit(vcpu, 8192 + i, true); + } + its_send_invall(collection[0]); + its_send_invall(collection[1]); + + /* Set the PTZ bit on each pendbaser */ + + expected[nr_cpus - 1] = 128; + expected[nr_cpus - 2] = 128; + + ptr = gicv3_data.redist_base[nr_cpus - 1] + GICR_PENDBASER; + pendbaser = readq(ptr); + writeq(pendbaser & ~GICR_PENDBASER_PTZ, ptr); + + ptr = gicv3_data.redist_base[nr_cpus - 2] + GICR_PENDBASER; + pendbaser = readq(ptr); + writeq(pendbaser & ~GICR_PENDBASER_PTZ, ptr); + + gicv3_rdist_ctrl_lpi(nr_cpus - 1, true); + gicv3_rdist_ctrl_lpi(nr_cpus - 2, true); + + puts("Now migrate the VM, then press a key to continue...\n"); + (void)getchar(); + report(true, "Migration complete"); + + mdelay(1000); + + check_lpi_hits(expected); +} + int main(int argc, char **argv) { if (!gic_init()) { @@ -803,6 +943,14 @@ int main(int argc, char **argv) report_prefix_push(argv[1]); test_its_migration(); report_prefix_pop(); + } else if (!strcmp(argv[1], "its-pending-migration")) { + report_prefix_push(argv[1]); + test_its_pending_migration(); + report_prefix_pop(); + } else if (!strcmp(argv[1], "its-migrate-unmapped-collection")) { + report_prefix_push(argv[1]); + test_migrate_unmapped_collection(); + report_prefix_pop(); } else if (strcmp(argv[1], "its-introspection") == 0) { report_prefix_push(argv[1]); test_its_introspection(); diff --git a/arm/unittests.cfg b/arm/unittests.cfg index 29e2efc..911f0b7 100644 --- a/arm/unittests.cfg +++ b/arm/unittests.cfg @@ -145,7 +145,21 @@ file = gic.flat smp = $MAX_SMP accel = kvm extra_params = -machine gic-version=3 -append 'its-migration' -groups = its migration +groups = migration + +[its-pending-migration] +file = gic.flat +smp = $MAX_SMP +accel = kvm +extra_params = -machine gic-version=3 -append 'its-pending-migration' +groups = migration + +[its-migrate-unmapped-collection] +file = gic.flat +smp = $MAX_SMP +accel = kvm +extra_params = -machine gic-version=3 -append 'its-migrate-unmapped-collection' +groups = migration # Test PSCI emulation [psci]
Add two new migration tests. One testing the migration of a topology where collection were unmapped. The second test checks the migration of the pending table. Signed-off-by: Eric Auger <eric.auger@redhat.com> --- arm/gic.c | 148 ++++++++++++++++++++++++++++++++++++++++++++++ arm/unittests.cfg | 16 ++++- 2 files changed, 163 insertions(+), 1 deletion(-)