/* * IPMI KCS test cases, using the local interface. * * Copyright (c) 2012 Corey Minyard <cminyard@mvista.com> * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ #include "qemu/osdep.h" #include "libqtest-single.h" #define IPMI_IRQ 5 #define IPMI_KCS_BASE 0xca2 #define IPMI_KCS_STATUS_ABORT 0x60 #define IPMI_KCS_CMD_WRITE_START 0x61 #define IPMI_KCS_CMD_WRITE_END 0x62 #define IPMI_KCS_CMD_READ 0x68 #define IPMI_KCS_ABORTED_BY_CMD 0x01 #define IPMI_KCS_CMDREG_GET_STATE() ((kcs_get_cmdreg() >> 6) & 3) #define IPMI_KCS_STATE_IDLE 0 #define IPMI_KCS_STATE_READ 1 #define IPMI_KCS_STATE_WRITE 2 #define IPMI_KCS_STATE_ERROR 3 #define IPMI_KCS_CMDREG_GET_CD() ((kcs_get_cmdreg() >> 3) & 1) #define IPMI_KCS_CMDREG_GET_ATN() ((kcs_get_cmdreg() >> 2) & 1) #define IPMI_KCS_CMDREG_GET_IBF() ((kcs_get_cmdreg() >> 1) & 1) #define IPMI_KCS_CMDREG_GET_OBF() ((kcs_get_cmdreg() >> 0) & 1) static int kcs_ints_enabled; static uint8_t kcs_get_cmdreg(void) { return inb(IPMI_KCS_BASE + 1); } static void kcs_write_cmdreg(uint8_t val) { outb(IPMI_KCS_BASE + 1, val); } static uint8_t kcs_get_datareg(void) { return inb(IPMI_KCS_BASE); } static void kcs_write_datareg(uint8_t val) { outb(IPMI_KCS_BASE, val); } static void kcs_wait_ibf(void) { unsigned int count = 1000; while (IPMI_KCS_CMDREG_GET_IBF() != 0) { g_assert(--count != 0); } } static void kcs_wait_obf(void) { unsigned int count = 1000; while (IPMI_KCS_CMDREG_GET_OBF() == 0) { g_assert(--count != 0); } } static void kcs_clear_obf(void) { if (kcs_ints_enabled) { g_assert(get_irq(IPMI_IRQ)); } else { g_assert(!get_irq(IPMI_IRQ)); } g_assert(IPMI_KCS_CMDREG_GET_OBF() == 1); kcs_get_datareg(); g_assert(IPMI_KCS_CMDREG_GET_OBF() == 0); g_assert(!get_irq(IPMI_IRQ)); } static void kcs_check_state(uint8_t state) { g_assert(IPMI_KCS_CMDREG_GET_STATE() == state); } static void kcs_cmd(uint8_t *cmd, unsigned int cmd_len, uint8_t *rsp, unsigned int *rsp_len) { unsigned int i, j = 0; /* Should be idle */ g_assert(kcs_get_cmdreg() == 0); kcs_write_cmdreg(IPMI_KCS_CMD_WRITE_START); kcs_wait_ibf(); kcs_check_state(IPMI_KCS_STATE_WRITE); kcs_clear_obf(); for (i = 0; i < cmd_len; i++) { kcs_write_datareg(cmd[i]); kcs_wait_ibf(); kcs_check_state(IPMI_KCS_STATE_WRITE); kcs_clear_obf(); } kcs_write_cmdreg(IPMI_KCS_CMD_WRITE_END); kcs_wait_ibf(); kcs_check_state(IPMI_KCS_STATE_WRITE); kcs_clear_obf(); kcs_write_datareg(0); next_read_byte: kcs_wait_ibf(); switch (IPMI_KCS_CMDREG_GET_STATE()) { case IPMI_KCS_STATE_READ: kcs_wait_obf(); g_assert(j < *rsp_len); rsp[j++] = kcs_get_datareg(); kcs_write_datareg(IPMI_KCS_CMD_READ); goto next_read_byte; break; case IPMI_KCS_STATE_IDLE: kcs_wait_obf(); kcs_get_datareg(); break; default: g_assert(0); } *rsp_len = j; } static void kcs_abort(uint8_t *cmd, unsigned int cmd_len, uint8_t *rsp, unsigned int *rsp_len) { unsigned int i, j = 0; unsigned int retries = 4; /* Should be idle */ g_assert(kcs_get_cmdreg() == 0); kcs_write_cmdreg(IPMI_KCS_CMD_WRITE_START); kcs_wait_ibf(); kcs_check_state(IPMI_KCS_STATE_WRITE); kcs_clear_obf(); for (i = 0; i < cmd_len; i++) { kcs_write_datareg(cmd[i]); kcs_wait_ibf(); kcs_check_state(IPMI_KCS_STATE_WRITE); kcs_clear_obf(); } kcs_write_cmdreg(IPMI_KCS_CMD_WRITE_END); kcs_wait_ibf(); kcs_check_state(IPMI_KCS_STATE_WRITE); kcs_clear_obf(); kcs_write_datareg(0); kcs_wait_ibf(); switch (IPMI_KCS_CMDREG_GET_STATE()) { case IPMI_KCS_STATE_READ: kcs_wait_obf(); g_assert(j < *rsp_len); rsp[j++] = kcs_get_datareg(); kcs_write_datareg(IPMI_KCS_CMD_READ); break; default: g_assert(0); } /* Start the abort here */ retry_abort: g_assert(retries > 0); kcs_wait_ibf(); kcs_write_cmdreg(IPMI_KCS_STATUS_ABORT); kcs_wait_ibf(); kcs_clear_obf(); kcs_write_datareg(0); kcs_wait_ibf(); if (IPMI_KCS_CMDREG_GET_STATE() != IPMI_KCS_STATE_READ) { retries--; goto retry_abort; } kcs_wait_obf(); rsp[0] = kcs_get_datareg(); kcs_write_datareg(IPMI_KCS_CMD_READ); kcs_wait_ibf(); if (IPMI_KCS_CMDREG_GET_STATE() != IPMI_KCS_STATE_IDLE) { retries--; goto retry_abort; } kcs_wait_obf(); kcs_clear_obf(); *rsp_len = j; } static uint8_t get_dev_id_cmd[] = { 0x18, 0x01 }; static uint8_t get_dev_id_rsp[] = { 0x1c, 0x01, 0x00, 0x20, 0x00, 0x00, 0x00, 0x02, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00 }; /* * Send a get_device_id to do a basic test. */ static void test_kcs_base(void) { uint8_t rsp[20]; unsigned int rsplen = sizeof(rsp); kcs_cmd(get_dev_id_cmd, sizeof(get_dev_id_cmd), rsp, &rsplen); g_assert(rsplen == sizeof(get_dev_id_rsp)); g_assert(memcmp(get_dev_id_rsp, rsp, rsplen) == 0); } /* * Abort a kcs operation while reading */ static void test_kcs_abort(void) { uint8_t rsp[20]; unsigned int rsplen = sizeof(rsp); kcs_abort(get_dev_id_cmd, sizeof(get_dev_id_cmd), rsp, &rsplen); g_assert(rsp[0] == IPMI_KCS_ABORTED_BY_CMD); } static uint8_t set_bmc_globals_cmd[] = { 0x18, 0x2e, 0x0f }; static uint8_t set_bmc_globals_rsp[] = { 0x1c, 0x2e, 0x00 }; /* * Enable interrupts */ static void test_enable_irq(void) { uint8_t rsp[20]; unsigned int rsplen = sizeof(rsp); kcs_cmd(set_bmc_globals_cmd, sizeof(set_bmc_globals_cmd), rsp, &rsplen); g_assert(rsplen == sizeof(set_bmc_globals_rsp)); g_assert(memcmp(set_bmc_globals_rsp, rsp, rsplen) == 0); kcs_ints_enabled = 1; } int main(int argc, char **argv) { char *cmdline; int ret; /* Run the tests */ g_test_init(&argc, &argv, NULL); cmdline = g_strdup_printf("-device ipmi-bmc-sim,id=bmc0" " -device isa-ipmi-kcs,bmc=bmc0"); qtest_start(cmdline); g_free(cmdline); qtest_irq_intercept_in(global_qtest, "ioapic"); qtest_add_func("/ipmi/local/kcs_base", test_kcs_base); qtest_add_func("/ipmi/local/kcs_abort", test_kcs_abort); qtest_add_func("/ipmi/local/kcs_enable_irq", test_enable_irq); qtest_add_func("/ipmi/local/kcs_base_irq", test_kcs_base); qtest_add_func("/ipmi/local/kcs_abort_irq", test_kcs_abort); ret = g_test_run(); qtest_quit(global_qtest); return ret; }