ahci: Adding basic functionality qtest.
Currently, there is no qtest to test the functionality of the AHCI functionality present within the Q35 machine type. This patch adds a skeleton for an AHCI test suite, and adds a simple sanity-check test case where we identify that the AHCI device is present, then disengage the virtual machine. Signed-off-by: John Snow <jsnow@redhat.com> Message-id: 1408643079-30675-2-git-send-email-jsnow@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
John Snow
Stefan Hajnoczi
parent
1e8fd8d44d
commit
1cd1031ddc
@ -132,6 +132,7 @@ check-qtest-i386-y = tests/endianness-test$(EXESUF)
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check-qtest-i386-y += tests/fdc-test$(EXESUF)
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gcov-files-i386-y = hw/block/fdc.c
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check-qtest-i386-y += tests/ide-test$(EXESUF)
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check-qtest-i386-y += tests/ahci-test$(EXESUF)
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check-qtest-i386-y += tests/hd-geo-test$(EXESUF)
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gcov-files-i386-y += hw/block/hd-geometry.c
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check-qtest-i386-y += tests/boot-order-test$(EXESUF)
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@ -307,6 +308,7 @@ tests/endianness-test$(EXESUF): tests/endianness-test.o
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tests/spapr-phb-test$(EXESUF): tests/spapr-phb-test.o $(libqos-obj-y)
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tests/fdc-test$(EXESUF): tests/fdc-test.o
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tests/ide-test$(EXESUF): tests/ide-test.o $(libqos-pc-obj-y)
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tests/ahci-test$(EXESUF): tests/ahci-test.o $(libqos-pc-obj-y)
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tests/hd-geo-test$(EXESUF): tests/hd-geo-test.o
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tests/boot-order-test$(EXESUF): tests/boot-order-test.o $(libqos-obj-y)
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tests/bios-tables-test$(EXESUF): tests/bios-tables-test.o $(libqos-obj-y)
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196
tests/ahci-test.c
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196
tests/ahci-test.c
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@ -0,0 +1,196 @@
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/*
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* AHCI test cases
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*
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* Copyright (c) 2014 John Snow <jsnow@redhat.com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include <stdint.h>
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#include <string.h>
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#include <stdio.h>
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#include <glib.h>
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#include "libqtest.h"
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#include "libqos/pci-pc.h"
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#include "libqos/malloc-pc.h"
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#include "qemu-common.h"
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#include "qemu/host-utils.h"
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#include "hw/pci/pci_ids.h"
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#include "hw/pci/pci_regs.h"
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/* Test-specific defines. */
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#define TEST_IMAGE_SIZE (64 * 1024 * 1024)
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/*** Supplementary PCI Config Space IDs & Masks ***/
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#define PCI_DEVICE_ID_INTEL_Q35_AHCI (0x2922)
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/*** Globals ***/
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static QGuestAllocator *guest_malloc;
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static QPCIBus *pcibus;
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static char tmp_path[] = "/tmp/qtest.XXXXXX";
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/*** Function Declarations ***/
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static QPCIDevice *get_ahci_device(void);
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static void free_ahci_device(QPCIDevice *dev);
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/*** Utilities ***/
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/**
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* Locate, verify, and return a handle to the AHCI device.
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*/
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static QPCIDevice *get_ahci_device(void)
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{
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QPCIDevice *ahci;
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uint16_t vendor_id, device_id;
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pcibus = qpci_init_pc();
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/* Find the AHCI PCI device and verify it's the right one. */
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ahci = qpci_device_find(pcibus, QPCI_DEVFN(0x1F, 0x02));
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g_assert(ahci != NULL);
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vendor_id = qpci_config_readw(ahci, PCI_VENDOR_ID);
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device_id = qpci_config_readw(ahci, PCI_DEVICE_ID);
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g_assert_cmphex(vendor_id, ==, PCI_VENDOR_ID_INTEL);
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g_assert_cmphex(device_id, ==, PCI_DEVICE_ID_INTEL_Q35_AHCI);
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return ahci;
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}
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static void free_ahci_device(QPCIDevice *ahci)
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{
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/* libqos doesn't have a function for this, so free it manually */
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g_free(ahci);
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if (pcibus) {
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qpci_free_pc(pcibus);
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pcibus = NULL;
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}
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}
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/*** Test Setup & Teardown ***/
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/**
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* Launch QEMU with the given command line,
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* and then set up interrupts and our guest malloc interface.
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*/
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static void qtest_boot(const char *cmdline_fmt, ...)
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{
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va_list ap;
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char *cmdline;
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va_start(ap, cmdline_fmt);
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cmdline = g_strdup_vprintf(cmdline_fmt, ap);
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va_end(ap);
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qtest_start(cmdline);
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qtest_irq_intercept_in(global_qtest, "ioapic");
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guest_malloc = pc_alloc_init();
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g_free(cmdline);
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}
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/**
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* Tear down the QEMU instance.
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*/
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static void qtest_shutdown(void)
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{
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g_free(guest_malloc);
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guest_malloc = NULL;
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qtest_end();
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}
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/**
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* Start a Q35 machine and bookmark a handle to the AHCI device.
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*/
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static QPCIDevice *ahci_boot(void)
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{
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qtest_boot("-drive if=none,id=drive0,file=%s,cache=writeback,serial=%s"
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" -M q35 "
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"-device ide-hd,drive=drive0 "
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"-global ide-hd.ver=%s",
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tmp_path, "testdisk", "version");
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/* Verify that we have an AHCI device present. */
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return get_ahci_device();
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}
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/**
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* Clean up the PCI device, then terminate the QEMU instance.
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*/
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static void ahci_shutdown(QPCIDevice *ahci)
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{
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free_ahci_device(ahci);
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qtest_shutdown();
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}
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/******************************************************************************/
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/* Test Interfaces */
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/******************************************************************************/
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/**
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* Basic sanity test to boot a machine, find an AHCI device, and shutdown.
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*/
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static void test_sanity(void)
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{
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QPCIDevice *ahci;
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ahci = ahci_boot();
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ahci_shutdown(ahci);
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}
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/******************************************************************************/
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int main(int argc, char **argv)
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{
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const char *arch;
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int fd;
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int ret;
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/* Should be first to utilize g_test functionality, So we can see errors. */
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g_test_init(&argc, &argv, NULL);
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/* Check architecture */
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arch = qtest_get_arch();
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if (strcmp(arch, "i386") && strcmp(arch, "x86_64")) {
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g_test_message("Skipping test for non-x86");
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return 0;
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}
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/* Create a temporary raw image */
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fd = mkstemp(tmp_path);
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g_assert(fd >= 0);
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ret = ftruncate(fd, TEST_IMAGE_SIZE);
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g_assert(ret == 0);
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close(fd);
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/* Run the tests */
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qtest_add_func("/ahci/sanity", test_sanity);
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ret = g_test_run();
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/* Cleanup */
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unlink(tmp_path);
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return ret;
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}
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