/* * qtest I440FX test case * * Copyright IBM, Corp. 2012-2013 * Copyright Red Hat, Inc. 2013 * * Authors: * Anthony Liguori <aliguori@us.ibm.com> * Laszlo Ersek <lersek@redhat.com> * * This work is licensed under the terms of the GNU GPL, version 2 or later. * See the COPYING file in the top-level directory. */ #include <glib.h> #include <string.h> #include <stdio.h> #include <unistd.h> #include <errno.h> #include <sys/mman.h> #include <stdlib.h> #include "libqtest.h" #include "libqos/pci.h" #include "libqos/pci-pc.h" #include "hw/pci/pci_regs.h" #define BROKEN 1 #define ARRAY_SIZE(array) (sizeof(array) / sizeof((array)[0])) typedef struct TestData { int num_cpus; } TestData; typedef struct FirmwareTestFixture { /* decides whether we're testing -bios or -pflash */ bool is_bios; } FirmwareTestFixture; static QPCIBus *test_start_get_bus(const TestData *s) { char *cmdline; cmdline = g_strdup_printf("-smp %d", s->num_cpus); qtest_start(cmdline); g_free(cmdline); return qpci_init_pc(); } static void test_i440fx_defaults(gconstpointer opaque) { const TestData *s = opaque; QPCIBus *bus; QPCIDevice *dev; uint32_t value; bus = test_start_get_bus(s); dev = qpci_device_find(bus, QPCI_DEVFN(0, 0)); g_assert(dev != NULL); /* 3.2.2 */ g_assert_cmpint(qpci_config_readw(dev, PCI_VENDOR_ID), ==, 0x8086); /* 3.2.3 */ g_assert_cmpint(qpci_config_readw(dev, PCI_DEVICE_ID), ==, 0x1237); #ifndef BROKEN /* 3.2.4 */ g_assert_cmpint(qpci_config_readw(dev, PCI_COMMAND), ==, 0x0006); /* 3.2.5 */ g_assert_cmpint(qpci_config_readw(dev, PCI_STATUS), ==, 0x0280); #endif /* 3.2.7 */ g_assert_cmpint(qpci_config_readb(dev, PCI_CLASS_PROG), ==, 0x00); g_assert_cmpint(qpci_config_readw(dev, PCI_CLASS_DEVICE), ==, 0x0600); /* 3.2.8 */ g_assert_cmpint(qpci_config_readb(dev, PCI_LATENCY_TIMER), ==, 0x00); /* 3.2.9 */ g_assert_cmpint(qpci_config_readb(dev, PCI_HEADER_TYPE), ==, 0x00); /* 3.2.10 */ g_assert_cmpint(qpci_config_readb(dev, PCI_BIST), ==, 0x00); /* 3.2.11 */ value = qpci_config_readw(dev, 0x50); /* PMCCFG */ if (s->num_cpus == 1) { /* WPE */ g_assert(!(value & (1 << 15))); } else { g_assert((value & (1 << 15))); } g_assert(!(value & (1 << 6))); /* EPTE */ /* 3.2.12 */ g_assert_cmpint(qpci_config_readb(dev, 0x52), ==, 0x00); /* DETURBO */ /* 3.2.13 */ #ifndef BROKEN g_assert_cmpint(qpci_config_readb(dev, 0x53), ==, 0x80); /* DBC */ #endif /* 3.2.14 */ g_assert_cmpint(qpci_config_readb(dev, 0x54), ==, 0x00); /* AXC */ /* 3.2.15 */ g_assert_cmpint(qpci_config_readw(dev, 0x55), ==, 0x0000); /* DRT */ #ifndef BROKEN /* 3.2.16 */ g_assert_cmpint(qpci_config_readb(dev, 0x57), ==, 0x01); /* DRAMC */ /* 3.2.17 */ g_assert_cmpint(qpci_config_readb(dev, 0x58), ==, 0x10); /* DRAMT */ #endif /* 3.2.18 */ g_assert_cmpint(qpci_config_readb(dev, 0x59), ==, 0x00); /* PAM0 */ g_assert_cmpint(qpci_config_readb(dev, 0x5A), ==, 0x00); /* PAM1 */ g_assert_cmpint(qpci_config_readb(dev, 0x5B), ==, 0x00); /* PAM2 */ g_assert_cmpint(qpci_config_readb(dev, 0x5C), ==, 0x00); /* PAM3 */ g_assert_cmpint(qpci_config_readb(dev, 0x5D), ==, 0x00); /* PAM4 */ g_assert_cmpint(qpci_config_readb(dev, 0x5E), ==, 0x00); /* PAM5 */ g_assert_cmpint(qpci_config_readb(dev, 0x5F), ==, 0x00); /* PAM6 */ #ifndef BROKEN /* 3.2.19 */ g_assert_cmpint(qpci_config_readb(dev, 0x60), ==, 0x01); /* DRB0 */ g_assert_cmpint(qpci_config_readb(dev, 0x61), ==, 0x01); /* DRB1 */ g_assert_cmpint(qpci_config_readb(dev, 0x62), ==, 0x01); /* DRB2 */ g_assert_cmpint(qpci_config_readb(dev, 0x63), ==, 0x01); /* DRB3 */ g_assert_cmpint(qpci_config_readb(dev, 0x64), ==, 0x01); /* DRB4 */ g_assert_cmpint(qpci_config_readb(dev, 0x65), ==, 0x01); /* DRB5 */ g_assert_cmpint(qpci_config_readb(dev, 0x66), ==, 0x01); /* DRB6 */ g_assert_cmpint(qpci_config_readb(dev, 0x67), ==, 0x01); /* DRB7 */ #endif /* 3.2.20 */ g_assert_cmpint(qpci_config_readb(dev, 0x68), ==, 0x00); /* FDHC */ /* 3.2.21 */ g_assert_cmpint(qpci_config_readb(dev, 0x70), ==, 0x00); /* MTT */ #ifndef BROKEN /* 3.2.22 */ g_assert_cmpint(qpci_config_readb(dev, 0x71), ==, 0x10); /* CLT */ #endif /* 3.2.23 */ g_assert_cmpint(qpci_config_readb(dev, 0x72), ==, 0x02); /* SMRAM */ /* 3.2.24 */ g_assert_cmpint(qpci_config_readb(dev, 0x90), ==, 0x00); /* ERRCMD */ /* 3.2.25 */ g_assert_cmpint(qpci_config_readb(dev, 0x91), ==, 0x00); /* ERRSTS */ /* 3.2.26 */ g_assert_cmpint(qpci_config_readb(dev, 0x93), ==, 0x00); /* TRC */ qtest_end(); } #define PAM_RE 1 #define PAM_WE 2 static void pam_set(QPCIDevice *dev, int index, int flags) { int regno = 0x59 + (index / 2); uint8_t reg; reg = qpci_config_readb(dev, regno); if (index & 1) { reg = (reg & 0x0F) | (flags << 4); } else { reg = (reg & 0xF0) | flags; } qpci_config_writeb(dev, regno, reg); } static gboolean verify_area(uint32_t start, uint32_t end, uint8_t value) { uint32_t size = end - start + 1; gboolean ret = TRUE; uint8_t *data; int i; data = g_malloc0(size); memread(start, data, size); g_test_message("verify_area: data[0] = 0x%x", data[0]); for (i = 0; i < size; i++) { if (data[i] != value) { ret = FALSE; break; } } g_free(data); return ret; } static void write_area(uint32_t start, uint32_t end, uint8_t value) { uint32_t size = end - start + 1; uint8_t *data; data = g_malloc0(size); memset(data, value, size); memwrite(start, data, size); g_free(data); } static void test_i440fx_pam(gconstpointer opaque) { const TestData *s = opaque; QPCIBus *bus; QPCIDevice *dev; int i; static struct { uint32_t start; uint32_t end; } pam_area[] = { { 0, 0 }, /* Reserved */ { 0xF0000, 0xFFFFF }, /* BIOS Area */ { 0xC0000, 0xC3FFF }, /* Option ROM */ { 0xC4000, 0xC7FFF }, /* Option ROM */ { 0xC8000, 0xCBFFF }, /* Option ROM */ { 0xCC000, 0xCFFFF }, /* Option ROM */ { 0xD0000, 0xD3FFF }, /* Option ROM */ { 0xD4000, 0xD7FFF }, /* Option ROM */ { 0xD8000, 0xDBFFF }, /* Option ROM */ { 0xDC000, 0xDFFFF }, /* Option ROM */ { 0xE0000, 0xE3FFF }, /* BIOS Extension */ { 0xE4000, 0xE7FFF }, /* BIOS Extension */ { 0xE8000, 0xEBFFF }, /* BIOS Extension */ { 0xEC000, 0xEFFFF }, /* BIOS Extension */ }; bus = test_start_get_bus(s); dev = qpci_device_find(bus, QPCI_DEVFN(0, 0)); g_assert(dev != NULL); for (i = 0; i < ARRAY_SIZE(pam_area); i++) { if (pam_area[i].start == pam_area[i].end) { continue; } g_test_message("Checking area 0x%05x..0x%05x", pam_area[i].start, pam_area[i].end); /* Switch to RE for the area */ pam_set(dev, i, PAM_RE); /* Verify the RAM is all zeros */ g_assert(verify_area(pam_area[i].start, pam_area[i].end, 0)); /* Switch to WE for the area */ pam_set(dev, i, PAM_RE | PAM_WE); /* Write out a non-zero mask to the full area */ write_area(pam_area[i].start, pam_area[i].end, 0x42); #ifndef BROKEN /* QEMU only supports a limited form of PAM */ /* Switch to !RE for the area */ pam_set(dev, i, PAM_WE); /* Verify the area is not our mask */ g_assert(!verify_area(pam_area[i].start, pam_area[i].end, 0x42)); #endif /* Verify the area is our new mask */ g_assert(verify_area(pam_area[i].start, pam_area[i].end, 0x42)); /* Write out a new mask */ write_area(pam_area[i].start, pam_area[i].end, 0x82); #ifndef BROKEN /* QEMU only supports a limited form of PAM */ /* Verify the area is not our mask */ g_assert(!verify_area(pam_area[i].start, pam_area[i].end, 0x82)); /* Switch to RE for the area */ pam_set(dev, i, PAM_RE | PAM_WE); #endif /* Verify the area is our new mask */ g_assert(verify_area(pam_area[i].start, pam_area[i].end, 0x82)); /* Reset area */ pam_set(dev, i, 0); /* Verify the area is not our new mask */ g_assert(!verify_area(pam_area[i].start, pam_area[i].end, 0x82)); } qtest_end(); } #define BLOB_SIZE ((size_t)65536) #define ISA_BIOS_MAXSZ ((size_t)(128 * 1024)) /* Create a blob file, and return its absolute pathname as a dynamically * allocated string. * The file is closed before the function returns. * In case of error, NULL is returned. The function prints the error message. */ static char *create_blob_file(void) { int ret, fd; char *pathname; GError *error = NULL; ret = -1; fd = g_file_open_tmp("blob_XXXXXX", &pathname, &error); if (fd == -1) { fprintf(stderr, "unable to create blob file: %s\n", error->message); g_error_free(error); } else { if (ftruncate(fd, BLOB_SIZE) == -1) { fprintf(stderr, "ftruncate(\"%s\", %zu): %s\n", pathname, BLOB_SIZE, strerror(errno)); } else { void *buf; buf = mmap(NULL, BLOB_SIZE, PROT_WRITE, MAP_SHARED, fd, 0); if (buf == MAP_FAILED) { fprintf(stderr, "mmap(\"%s\", %zu): %s\n", pathname, BLOB_SIZE, strerror(errno)); } else { size_t i; for (i = 0; i < BLOB_SIZE; ++i) { ((uint8_t *)buf)[i] = i; } munmap(buf, BLOB_SIZE); ret = 0; } } close(fd); if (ret == -1) { unlink(pathname); g_free(pathname); } } return ret == -1 ? NULL : pathname; } static void test_i440fx_firmware(FirmwareTestFixture *fixture, gconstpointer user_data) { char *fw_pathname, *cmdline; uint8_t *buf; size_t i, isa_bios_size; fw_pathname = create_blob_file(); g_assert(fw_pathname != NULL); /* Better hope the user didn't put metacharacters in TMPDIR and co. */ cmdline = g_strdup_printf("-S %s %s", fixture->is_bios ? "-bios" : "-pflash", fw_pathname); g_test_message("qemu cmdline: %s", cmdline); qtest_start(cmdline); g_free(cmdline); /* QEMU has loaded the firmware (because qtest_start() only returns after * the QMP handshake completes). We must unlink the firmware blob right * here, because any assertion firing below would leak it in the * filesystem. This is also the reason why we recreate the blob every time * this function is invoked. */ unlink(fw_pathname); g_free(fw_pathname); /* check below 4G */ buf = g_malloc0(BLOB_SIZE); memread(0x100000000ULL - BLOB_SIZE, buf, BLOB_SIZE); for (i = 0; i < BLOB_SIZE; ++i) { g_assert_cmphex(buf[i], ==, (uint8_t)i); } /* check in ISA space too */ memset(buf, 0, BLOB_SIZE); isa_bios_size = ISA_BIOS_MAXSZ < BLOB_SIZE ? ISA_BIOS_MAXSZ : BLOB_SIZE; memread(0x100000 - isa_bios_size, buf, isa_bios_size); for (i = 0; i < isa_bios_size; ++i) { g_assert_cmphex(buf[i], ==, (uint8_t)((BLOB_SIZE - isa_bios_size) + i)); } g_free(buf); qtest_end(); } static void add_firmware_test(const char *testpath, void (*setup_fixture)(FirmwareTestFixture *f, gconstpointer test_data)) { g_test_add(testpath, FirmwareTestFixture, NULL, setup_fixture, test_i440fx_firmware, NULL); } static void request_bios(FirmwareTestFixture *fixture, gconstpointer user_data) { fixture->is_bios = true; } static void request_pflash(FirmwareTestFixture *fixture, gconstpointer user_data) { fixture->is_bios = false; } int main(int argc, char **argv) { TestData data; int ret; g_test_init(&argc, &argv, NULL); data.num_cpus = 1; g_test_add_data_func("/i440fx/defaults", &data, test_i440fx_defaults); g_test_add_data_func("/i440fx/pam", &data, test_i440fx_pam); add_firmware_test("/i440fx/firmware/bios", request_bios); add_firmware_test("/i440fx/firmware/pflash", request_pflash); ret = g_test_run(); return ret; }