X-Git-Url: https://repo.jachan.dev/qemu.git/blobdiff_plain/c27e9014d56fa4880e7d741275d887c3a5949997..e2679395d598bd40770c22a793c0152576ac211f:/tests/ivshmem-test.c diff --git a/tests/ivshmem-test.c b/tests/ivshmem-test.c index f1793ba6fb..8af16ee79a 100644 --- a/tests/ivshmem-test.c +++ b/tests/ivshmem-test.c @@ -8,17 +8,12 @@ * See the COPYING file in the top-level directory. */ -#include -#include -#include +#include "qemu/osdep.h" #include -#include -#include -#include #include "contrib/ivshmem-server/ivshmem-server.h" -#include "libqos/pci-pc.h" +#include "libqos/libqos-pc.h" +#include "libqos/libqos-spapr.h" #include "libqtest.h" -#include "qemu/osdep.h" #include "qemu-common.h" #define TMPSHMSIZE (1 << 20) @@ -34,12 +29,11 @@ static void save_fn(QPCIDevice *dev, int devfn, void *data) *pdev = dev; } -static QPCIDevice *get_device(void) +static QPCIDevice *get_device(QPCIBus *pcibus) { QPCIDevice *dev; - QPCIBus *pcibus; - pcibus = qpci_init_pc(); + dev = NULL; qpci_device_foreach(pcibus, 0x1af4, 0x1110, save_fn, &dev); g_assert(dev != NULL); @@ -47,8 +41,8 @@ static QPCIDevice *get_device(void) } typedef struct _IVState { - QTestState *qtest; - void *reg_base, *mem_base; + QOSState *qs; + QPCIBar reg_bar, mem_bar; QPCIDevice *dev; } IVState; @@ -80,8 +74,8 @@ static inline unsigned in_reg(IVState *s, enum Reg reg) QTestState *qtest = global_qtest; unsigned res; - global_qtest = s->qtest; - res = qpci_io_readl(s->dev, s->reg_base + reg); + global_qtest = s->qs->qts; + res = qpci_io_readl(s->dev, s->reg_bar, reg); g_test_message("*%s -> %x\n", name, res); global_qtest = qtest; @@ -93,39 +87,71 @@ static inline void out_reg(IVState *s, enum Reg reg, unsigned v) const char *name = reg2str(reg); QTestState *qtest = global_qtest; - global_qtest = s->qtest; + global_qtest = s->qs->qts; g_test_message("%x -> *%s\n", v, name); - qpci_io_writel(s->dev, s->reg_base + reg, v); + qpci_io_writel(s->dev, s->reg_bar, reg, v); global_qtest = qtest; } -static void setup_vm_cmd(IVState *s, const char *cmd, bool msix) +static inline void read_mem(IVState *s, uint64_t off, void *buf, size_t len) { - uint64_t barsize; + QTestState *qtest = global_qtest; - s->qtest = qtest_start(cmd); + global_qtest = s->qs->qts; + qpci_memread(s->dev, s->mem_bar, off, buf, len); + global_qtest = qtest; +} - s->dev = get_device(); +static inline void write_mem(IVState *s, uint64_t off, + const void *buf, size_t len) +{ + QTestState *qtest = global_qtest; - /* FIXME: other bar order fails, mappings changes */ - s->mem_base = qpci_iomap(s->dev, 2, &barsize); - g_assert_nonnull(s->mem_base); - g_assert_cmpuint(barsize, ==, TMPSHMSIZE); + global_qtest = s->qs->qts; + qpci_memwrite(s->dev, s->mem_bar, off, buf, len); + global_qtest = qtest; +} + +static void cleanup_vm(IVState *s) +{ + g_free(s->dev); + qtest_shutdown(s->qs); +} + +static void setup_vm_cmd(IVState *s, const char *cmd, bool msix) +{ + uint64_t barsize; + const char *arch = qtest_get_arch(); + + if (strcmp(arch, "i386") == 0 || strcmp(arch, "x86_64") == 0) { + s->qs = qtest_pc_boot(cmd); + } else if (strcmp(arch, "ppc64") == 0) { + s->qs = qtest_spapr_boot(cmd); + } else { + g_printerr("ivshmem-test tests are only available on x86 or ppc64\n"); + exit(EXIT_FAILURE); + } + global_qtest = s->qs->qts; + s->dev = get_device(s->qs->pcibus); + + s->reg_bar = qpci_iomap(s->dev, 0, &barsize); + g_assert_cmpuint(barsize, ==, 256); if (msix) { qpci_msix_enable(s->dev); } - s->reg_base = qpci_iomap(s->dev, 0, &barsize); - g_assert_nonnull(s->reg_base); - g_assert_cmpuint(barsize, ==, 256); + s->mem_bar = qpci_iomap(s->dev, 2, &barsize); + g_assert_cmpuint(barsize, ==, TMPSHMSIZE); qpci_device_enable(s->dev); } static void setup_vm(IVState *s) { - char *cmd = g_strdup_printf("-device ivshmem,shm=%s,size=1M", tmpshm); + char *cmd = g_strdup_printf("-object memory-backend-file" + ",id=mb1,size=1M,share,mem-path=/dev/shm%s" + " -device ivshmem-plain,memdev=mb1", tmpshm); setup_vm_cmd(s, cmd, false); @@ -141,38 +167,47 @@ static void test_ivshmem_single(void) setup_vm(&state); s = &state; - /* valid io */ - out_reg(s, INTRMASK, 0); - in_reg(s, INTRSTATUS); - in_reg(s, IVPOSITION); + /* initial state of readable registers */ + g_assert_cmpuint(in_reg(s, INTRMASK), ==, 0); + g_assert_cmpuint(in_reg(s, INTRSTATUS), ==, 0); + g_assert_cmpuint(in_reg(s, IVPOSITION), ==, 0); + /* trigger interrupt via registers */ out_reg(s, INTRMASK, 0xffffffff); g_assert_cmpuint(in_reg(s, INTRMASK), ==, 0xffffffff); out_reg(s, INTRSTATUS, 1); - /* XXX: intercept IRQ, not seen in resp */ + /* check interrupt status */ g_assert_cmpuint(in_reg(s, INTRSTATUS), ==, 1); + /* reading clears */ + g_assert_cmpuint(in_reg(s, INTRSTATUS), ==, 0); + /* TODO intercept actual interrupt (needs qtest work) */ - /* invalid io */ + /* invalid register access */ out_reg(s, IVPOSITION, 1); + in_reg(s, DOORBELL); + + /* ring the (non-functional) doorbell */ out_reg(s, DOORBELL, 8 << 16); + /* write shared memory */ for (i = 0; i < G_N_ELEMENTS(data); i++) { data[i] = i; } - qtest_memwrite(s->qtest, (uintptr_t)s->mem_base, data, sizeof(data)); + write_mem(s, 0, data, sizeof(data)); + /* verify write */ for (i = 0; i < G_N_ELEMENTS(data); i++) { g_assert_cmpuint(((uint32_t *)tmpshmem)[i], ==, i); } + /* read it back and verify read */ memset(data, 0, sizeof(data)); - - qtest_memread(s->qtest, (uintptr_t)s->mem_base, data, sizeof(data)); + read_mem(s, 0, data, sizeof(data)); for (i = 0; i < G_N_ELEMENTS(data); i++) { g_assert_cmpuint(data[i], ==, i); } - qtest_quit(s->qtest); + cleanup_vm(s); } static void test_ivshmem_pair(void) @@ -190,35 +225,35 @@ static void test_ivshmem_pair(void) /* host write, guest 1 & 2 read */ memset(tmpshmem, 0x42, TMPSHMSIZE); - qtest_memread(s1->qtest, (uintptr_t)s1->mem_base, data, TMPSHMSIZE); + read_mem(s1, 0, data, TMPSHMSIZE); for (i = 0; i < TMPSHMSIZE; i++) { g_assert_cmpuint(data[i], ==, 0x42); } - qtest_memread(s2->qtest, (uintptr_t)s2->mem_base, data, TMPSHMSIZE); + read_mem(s2, 0, data, TMPSHMSIZE); for (i = 0; i < TMPSHMSIZE; i++) { g_assert_cmpuint(data[i], ==, 0x42); } /* guest 1 write, guest 2 read */ memset(data, 0x43, TMPSHMSIZE); - qtest_memwrite(s1->qtest, (uintptr_t)s1->mem_base, data, TMPSHMSIZE); + write_mem(s1, 0, data, TMPSHMSIZE); memset(data, 0, TMPSHMSIZE); - qtest_memread(s2->qtest, (uintptr_t)s2->mem_base, data, TMPSHMSIZE); + read_mem(s2, 0, data, TMPSHMSIZE); for (i = 0; i < TMPSHMSIZE; i++) { g_assert_cmpuint(data[i], ==, 0x43); } /* guest 2 write, guest 1 read */ memset(data, 0x44, TMPSHMSIZE); - qtest_memwrite(s2->qtest, (uintptr_t)s2->mem_base, data, TMPSHMSIZE); + write_mem(s2, 0, data, TMPSHMSIZE); memset(data, 0, TMPSHMSIZE); - qtest_memread(s1->qtest, (uintptr_t)s2->mem_base, data, TMPSHMSIZE); + read_mem(s1, 0, data, TMPSHMSIZE); for (i = 0; i < TMPSHMSIZE; i++) { g_assert_cmpuint(data[i], ==, 0x44); } - qtest_quit(s1->qtest); - qtest_quit(s2->qtest); + cleanup_vm(s1); + cleanup_vm(s2); g_free(data); } @@ -270,18 +305,20 @@ static void *server_thread(void *data) return NULL; } -static void setup_vm_with_server(IVState *s, int nvectors) +static void setup_vm_with_server(IVState *s, int nvectors, bool msi) { char *cmd = g_strdup_printf("-chardev socket,id=chr0,path=%s,nowait " - "-device ivshmem,size=1M,chardev=chr0,vectors=%d", - tmpserver, nvectors); + "-device ivshmem%s,chardev=chr0,vectors=%d", + tmpserver, + msi ? "-doorbell" : ",size=1M,msi=off", + nvectors); - setup_vm_cmd(s, cmd, true); + setup_vm_cmd(s, cmd, msi); g_free(cmd); } -static void test_ivshmem_server(void) +static void test_ivshmem_server(bool msi) { IVState state1, state2, *s1, *s2; ServerThread thread; @@ -290,8 +327,7 @@ static void test_ivshmem_server(void) int nvectors = 2; guint64 end_time = g_get_monotonic_time() + 5 * G_TIME_SPAN_SECOND; - memset(tmpshmem, 0x42, TMPSHMSIZE); - ret = ivshmem_server_init(&server, tmpserver, tmpshm, + ret = ivshmem_server_init(&server, tmpserver, tmpshm, true, TMPSHMSIZE, nvectors, g_test_verbose()); g_assert_cmpint(ret, ==, 0); @@ -299,64 +335,64 @@ static void test_ivshmem_server(void) ret = ivshmem_server_start(&server); g_assert_cmpint(ret, ==, 0); - setup_vm_with_server(&state1, nvectors); - s1 = &state1; - setup_vm_with_server(&state2, nvectors); - s2 = &state2; - - g_assert_cmpuint(in_reg(s1, IVPOSITION), ==, 0xffffffff); - g_assert_cmpuint(in_reg(s2, IVPOSITION), ==, 0xffffffff); - - g_assert_cmpuint(qtest_readb(s1->qtest, (uintptr_t)s1->mem_base), ==, 0x00); - thread.server = &server; ret = pipe(thread.pipe); g_assert_cmpint(ret, ==, 0); thread.thread = g_thread_new("ivshmem-server", server_thread, &thread); g_assert(thread.thread != NULL); - /* waiting until mapping is done */ - while (g_get_monotonic_time() < end_time) { - g_usleep(1000); - - if (qtest_readb(s1->qtest, (uintptr_t)s1->mem_base) == 0x42 && - qtest_readb(s2->qtest, (uintptr_t)s2->mem_base) == 0x42) { - break; - } - } + setup_vm_with_server(&state1, nvectors, msi); + s1 = &state1; + setup_vm_with_server(&state2, nvectors, msi); + s2 = &state2; /* check got different VM ids */ vm1 = in_reg(s1, IVPOSITION); vm2 = in_reg(s2, IVPOSITION); - g_assert_cmpuint(vm1, !=, vm2); + g_assert_cmpint(vm1, >=, 0); + g_assert_cmpint(vm2, >=, 0); + g_assert_cmpint(vm1, !=, vm2); + + /* check number of MSI-X vectors */ + global_qtest = s1->qs->qts; + if (msi) { + ret = qpci_msix_table_size(s1->dev); + g_assert_cmpuint(ret, ==, nvectors); + } - global_qtest = s1->qtest; - ret = qpci_msix_table_size(s1->dev); - g_assert_cmpuint(ret, ==, nvectors); + /* TODO test behavior before MSI-X is enabled */ - /* ping vm2 -> vm1 */ - ret = qpci_msix_pending(s1->dev, 0); - g_assert_cmpuint(ret, ==, 0); + /* ping vm2 -> vm1 on vector 0 */ + if (msi) { + ret = qpci_msix_pending(s1->dev, 0); + g_assert_cmpuint(ret, ==, 0); + } else { + g_assert_cmpuint(in_reg(s1, INTRSTATUS), ==, 0); + } out_reg(s2, DOORBELL, vm1 << 16); do { g_usleep(10000); - ret = qpci_msix_pending(s1->dev, 0); + ret = msi ? qpci_msix_pending(s1->dev, 0) : in_reg(s1, INTRSTATUS); } while (ret == 0 && g_get_monotonic_time() < end_time); g_assert_cmpuint(ret, !=, 0); - /* ping vm1 -> vm2 */ - global_qtest = s2->qtest; - ret = qpci_msix_pending(s2->dev, 0); - g_assert_cmpuint(ret, ==, 0); - out_reg(s1, DOORBELL, vm2 << 16); + /* ping vm1 -> vm2 on vector 1 */ + global_qtest = s2->qs->qts; + if (msi) { + ret = qpci_msix_pending(s2->dev, 1); + g_assert_cmpuint(ret, ==, 0); + } else { + g_assert_cmpuint(in_reg(s2, INTRSTATUS), ==, 0); + } + out_reg(s1, DOORBELL, vm2 << 16 | 1); do { g_usleep(10000); - ret = qpci_msix_pending(s2->dev, 0); + ret = msi ? qpci_msix_pending(s2->dev, 1) : in_reg(s2, INTRSTATUS); } while (ret == 0 && g_get_monotonic_time() < end_time); g_assert_cmpuint(ret, !=, 0); - qtest_quit(s2->qtest); - qtest_quit(s1->qtest); + cleanup_vm(s2); + cleanup_vm(s1); if (qemu_write_full(thread.pipe[1], "q", 1) != 1) { g_error("qemu_write_full: %s", g_strerror(errno)); @@ -369,10 +405,21 @@ static void test_ivshmem_server(void) close(thread.pipe[0]); } +static void test_ivshmem_server_msi(void) +{ + test_ivshmem_server(true); +} + +static void test_ivshmem_server_irq(void) +{ + test_ivshmem_server(false); +} + #define PCI_SLOT_HP 0x06 static void test_ivshmem_hotplug(void) { + const char *arch = qtest_get_arch(); gchar *opts; qtest_start(""); @@ -380,7 +427,9 @@ static void test_ivshmem_hotplug(void) opts = g_strdup_printf("'shm': '%s', 'size': '1M'", tmpshm); qpci_plug_device_test("ivshmem", "iv1", PCI_SLOT_HP, opts); - qpci_unplug_acpi_device_test("iv1", PCI_SLOT_HP); + if (strcmp(arch, "ppc64") != 0) { + qpci_unplug_acpi_device_test("iv1", PCI_SLOT_HP); + } qtest_end(); g_free(opts); @@ -392,9 +441,9 @@ static void test_ivshmem_memdev(void) /* just for the sake of checking memory-backend property */ setup_vm_cmd(&state, "-object memory-backend-ram,size=1M,id=mb1" - " -device ivshmem,memdev=mb1", false); + " -device ivshmem-plain,memdev=mb1", false); - qtest_quit(state.qtest); + cleanup_vm(&state); } static void cleanup(void) @@ -452,6 +501,7 @@ static gchar *mktempshm(int size, int *fd) int main(int argc, char **argv) { int ret, fd; + const char *arch = qtest_get_arch(); gchar dir[] = "/tmp/ivshmem-test.XXXXXX"; #if !GLIB_CHECK_VERSION(2, 31, 0) @@ -482,7 +532,10 @@ int main(int argc, char **argv) qtest_add_func("/ivshmem/memdev", test_ivshmem_memdev); if (g_test_slow()) { qtest_add_func("/ivshmem/pair", test_ivshmem_pair); - qtest_add_func("/ivshmem/server", test_ivshmem_server); + if (strcmp(arch, "ppc64") != 0) { + qtest_add_func("/ivshmem/server-msi", test_ivshmem_server_msi); + qtest_add_func("/ivshmem/server-irq", test_ivshmem_server_irq); + } } ret = g_test_run();