[Qemu-devel] [PATCH 24/28] qtest: add test for ISA I/O space endianness

[Paolo Bonzini <pbonzini@redhat.com>]

This writes a register and reads its 1/2/4 byte parts.  Masking
is done in the device model.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 tests/Makefile          |  14 +++-
 tests/endianness-test.c | 214 ++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 226 insertions(+), 2 deletions(-)
 create mode 100644 tests/endianness-test.c

diff --git a/tests/Makefile b/tests/Makefile
index 279d5f8..ebfe9eb 100644
--- a/tests/Makefile
+++ b/tests/Makefile
@@ -52,7 +52,8 @@ check-block-$(CONFIG_POSIX) += tests/qemu-iotests-quick.sh
 
 # All QTests for now are POSIX-only, but the dependencies are
 # really in libqtest, not in the testcases themselves.
-check-qtest-i386-y = tests/fdc-test$(EXESUF)
+check-qtest-i386-y = tests/endianness-test$(EXESUF)
+check-qtest-i386-y += tests/fdc-test$(EXESUF)
 gcov-files-i386-y = hw/fdc.c
 check-qtest-i386-y += tests/ide-test$(EXESUF)
 check-qtest-i386-y += tests/hd-geo-test$(EXESUF)
@@ -63,8 +64,16 @@ check-qtest-i386-y += tests/fw_cfg-test$(EXESUF)
 check-qtest-x86_64-y = $(check-qtest-i386-y)
 gcov-files-i386-y += i386-softmmu/hw/mc146818rtc.c
 gcov-files-x86_64-y = $(subst i386-softmmu/,x86_64-softmmu/,$(gcov-files-i386-y))
+check-qtest-mips-y = tests/endianness-test$(EXESUF)
+check-qtest-mips64-y = tests/endianness-test$(EXESUF)
+check-qtest-mips64el-y = tests/endianness-test$(EXESUF)
+check-qtest-ppc-y = tests/endianness-test$(EXESUF)
+check-qtest-ppc64-y = tests/endianness-test$(EXESUF)
+check-qtest-sh4-y = tests/endianness-test$(EXESUF)
+check-qtest-sh4eb-y = tests/endianness-test$(EXESUF)
+check-qtest-sparc64-y = tests/endianness-test$(EXESUF)
 #check-qtest-sparc-y = tests/m48t59-test$(EXESUF)
-#check-qtest-sparc64-y = tests/m48t59-test$(EXESUF)
+#check-qtest-sparc64-y += tests/m48t59-test$(EXESUF)
 gcov-files-sparc-y += hw/m48t59.c
 gcov-files-sparc64-y += hw/m48t59.c
 check-qtest-arm-y = tests/tmp105-test$(EXESUF)
@@ -131,6 +140,7 @@ libqos-omap-obj-y = $(libqos-obj-y) tests/libqos/i2c-omap.o
 
 tests/rtc-test$(EXESUF): tests/rtc-test.o
 tests/m48t59-test$(EXESUF): tests/m48t59-test.o
+tests/endianness-test$(EXESUF): tests/endianness-test.o
 tests/fdc-test$(EXESUF): tests/fdc-test.o
 tests/ide-test$(EXESUF): tests/ide-test.o $(libqos-pc-obj-y)
 tests/hd-geo-test$(EXESUF): tests/hd-geo-test.o
diff --git a/tests/endianness-test.c b/tests/endianness-test.c
new file mode 100644
index 0000000..ca66645
--- /dev/null
+++ b/tests/endianness-test.c
@@ -0,0 +1,214 @@
+/*
+ * QTest testcase for ISA endianness
+ *
+ * Copyright Red Hat, Inc. 2012
+ *
+ * Authors:
+ *  Paolo Bonzini <pbonzini@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 "libqtest.h"
+
+#include <glib.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include "qemu/bswap.h"
+
+typedef struct TestCase TestCase;
+struct TestCase {
+    const char *arch;
+    const char *machine;
+    uint64_t isa_base;
+    bool bswap;
+    const char *superio;
+};
+
+static const TestCase test_cases[] = {
+    { "i386", "pc", -1 },
+    { "mips", "magnum", 0x90000000, .bswap = true },
+    { "mips", "pica61", 0x90000000, .bswap = true },
+    { "mips", "mips", 0x14000000, .bswap = true },
+    { "mips", "malta", 0x10000000, .bswap = true },
+    { "mips64", "magnum", 0x90000000, .bswap = true },
+    { "mips64", "pica61", 0x90000000, .bswap = true },
+    { "mips64", "mips", 0x14000000, .bswap = true },
+    { "mips64", "malta", 0x10000000, .bswap = true },
+    { "mips64el", "fulong2e", 0x1fd00000 },
+    { "ppc", "g3beige", 0xfe000000, .bswap = true, .superio = "i82378" },
+    { "ppc", "prep", 0x80000000, .bswap = true },
+    { "ppc", "bamboo", 0xe8000000, .bswap = true, .superio = "i82378" },
+    { "ppc64", "mac99", 0xf2000000, .bswap = true, .superio = "i82378" },
+    { "ppc64", "pseries", 0x10080000000, .bswap = true, .superio = "i82378" },
+    { "sh4", "r2d", 0xfe240000, .superio = "i82378" },
+    { "sh4eb", "r2d", 0xfe240000, .bswap = true, .superio = "i82378" },
+    { "sparc64", "sun4u", 0x1fe02000000LL, .bswap = true },
+    { "x86_64", "pc", -1 },
+    {}
+};
+
+static uint8_t isa_inb(const TestCase *test, uint16_t addr)
+{
+    uint8_t value;
+    if (test->isa_base == -1) {
+        value = inb(addr);
+    } else {
+        value = readb(test->isa_base + addr);
+    }
+    return value;
+}
+
+static uint16_t isa_inw(const TestCase *test, uint16_t addr)
+{
+    uint16_t value;
+    if (test->isa_base == -1) {
+        value = inw(addr);
+    } else {
+        value = readw(test->isa_base + addr);
+    }
+    return test->bswap ? bswap16(value) : value;
+}
+
+static uint32_t isa_inl(const TestCase *test, uint16_t addr)
+{
+    uint32_t value;
+    if (test->isa_base == -1) {
+        value = inl(addr);
+    } else {
+        value = readl(test->isa_base + addr);
+    }
+    return test->bswap ? bswap32(value) : value;
+}
+
+static void isa_outb(const TestCase *test, uint16_t addr, uint8_t value)
+{
+    if (test->isa_base == -1) {
+        outb(addr, value);
+    } else {
+        writeb(test->isa_base + addr, value);
+    }
+}
+
+static void isa_outw(const TestCase *test, uint16_t addr, uint16_t value)
+{
+    value = test->bswap ? bswap16(value) : value;
+    if (test->isa_base == -1) {
+        outw(addr, value);
+    } else {
+        writew(test->isa_base + addr, value);
+    }
+}
+
+static void isa_outl(const TestCase *test, uint16_t addr, uint32_t value)
+{
+    value = test->bswap ? bswap32(value) : value;
+    if (test->isa_base == -1) {
+        outl(addr, value);
+    } else {
+        writel(test->isa_base + addr, value);
+    }
+}
+
+
+static void test_endianness(gconstpointer data)
+{
+    const TestCase *test = data;
+    char *args;
+
+    args = g_strdup_printf("-display none -M %s%s%s -device pc-testdev",
+                           test->machine,
+                           test->superio ? " -device " : "",
+                           test->superio ?: "");
+    qtest_start(args);
+    isa_outl(test, 0xe0, 0x87654321);
+    g_assert_cmphex(isa_inl(test, 0xe0), ==, 0x87654321);
+    g_assert_cmphex(isa_inw(test, 0xe2), ==, 0x8765);
+    g_assert_cmphex(isa_inw(test, 0xe0), ==, 0x4321);
+    g_assert_cmphex(isa_inb(test, 0xe3), ==, 0x87);
+    g_assert_cmphex(isa_inb(test, 0xe2), ==, 0x65);
+    g_assert_cmphex(isa_inb(test, 0xe1), ==, 0x43);
+    g_assert_cmphex(isa_inb(test, 0xe0), ==, 0x21);
+
+    isa_outw(test, 0xe2, 0x8866);
+    g_assert_cmphex(isa_inl(test, 0xe0), ==, 0x88664321);
+    g_assert_cmphex(isa_inw(test, 0xe2), ==, 0x8866);
+    g_assert_cmphex(isa_inw(test, 0xe0), ==, 0x4321);
+    g_assert_cmphex(isa_inb(test, 0xe3), ==, 0x88);
+    g_assert_cmphex(isa_inb(test, 0xe2), ==, 0x66);
+    g_assert_cmphex(isa_inb(test, 0xe1), ==, 0x43);
+    g_assert_cmphex(isa_inb(test, 0xe0), ==, 0x21);
+
+    isa_outw(test, 0xe0, 0x4422);
+    g_assert_cmphex(isa_inl(test, 0xe0), ==, 0x88664422);
+    g_assert_cmphex(isa_inw(test, 0xe2), ==, 0x8866);
+    g_assert_cmphex(isa_inw(test, 0xe0), ==, 0x4422);
+    g_assert_cmphex(isa_inb(test, 0xe3), ==, 0x88);
+    g_assert_cmphex(isa_inb(test, 0xe2), ==, 0x66);
+    g_assert_cmphex(isa_inb(test, 0xe1), ==, 0x44);
+    g_assert_cmphex(isa_inb(test, 0xe0), ==, 0x22);
+
+    isa_outb(test, 0xe3, 0x87);
+    g_assert_cmphex(isa_inl(test, 0xe0), ==, 0x87664422);
+    g_assert_cmphex(isa_inw(test, 0xe2), ==, 0x8766);
+    g_assert_cmphex(isa_inb(test, 0xe3), ==, 0x87);
+    g_assert_cmphex(isa_inb(test, 0xe2), ==, 0x66);
+    g_assert_cmphex(isa_inb(test, 0xe1), ==, 0x44);
+    g_assert_cmphex(isa_inb(test, 0xe0), ==, 0x22);
+
+    isa_outb(test, 0xe2, 0x65);
+    g_assert_cmphex(isa_inl(test, 0xe0), ==, 0x87654422);
+    g_assert_cmphex(isa_inw(test, 0xe2), ==, 0x8765);
+    g_assert_cmphex(isa_inw(test, 0xe0), ==, 0x4422);
+    g_assert_cmphex(isa_inb(test, 0xe3), ==, 0x87);
+    g_assert_cmphex(isa_inb(test, 0xe2), ==, 0x65);
+    g_assert_cmphex(isa_inb(test, 0xe1), ==, 0x44);
+    g_assert_cmphex(isa_inb(test, 0xe0), ==, 0x22);
+
+    isa_outb(test, 0xe1, 0x43);
+    g_assert_cmphex(isa_inl(test, 0xe0), ==, 0x87654322);
+    g_assert_cmphex(isa_inw(test, 0xe2), ==, 0x8765);
+    g_assert_cmphex(isa_inw(test, 0xe0), ==, 0x4322);
+    g_assert_cmphex(isa_inb(test, 0xe3), ==, 0x87);
+    g_assert_cmphex(isa_inb(test, 0xe2), ==, 0x65);
+    g_assert_cmphex(isa_inb(test, 0xe1), ==, 0x43);
+    g_assert_cmphex(isa_inb(test, 0xe0), ==, 0x22);
+
+    isa_outb(test, 0xe0, 0x21);
+    g_assert_cmphex(isa_inl(test, 0xe0), ==, 0x87654321);
+    g_assert_cmphex(isa_inw(test, 0xe2), ==, 0x8765);
+    g_assert_cmphex(isa_inw(test, 0xe0), ==, 0x4321);
+    g_assert_cmphex(isa_inb(test, 0xe3), ==, 0x87);
+    g_assert_cmphex(isa_inb(test, 0xe2), ==, 0x65);
+    g_assert_cmphex(isa_inb(test, 0xe1), ==, 0x43);
+    g_assert_cmphex(isa_inb(test, 0xe0), ==, 0x21);
+    qtest_quit(global_qtest);
+    g_free(args);
+}
+
+int main(int argc, char **argv)
+{
+    const char *arch = qtest_get_arch();
+    int ret;
+    int i;
+
+    g_test_init(&argc, &argv, NULL);
+
+    for (i = 0; test_cases[i].arch; i++) {
+        gchar *path;
+        if (strcmp(test_cases[i].arch, arch) != 0) {
+            continue;
+        }
+        path = g_strdup_printf("/%s/endianness/%s",
+                               arch, test_cases[i].machine);
+        g_test_add_data_func(path, &test_cases[i], test_endianness);
+    }
+
+    ret = g_test_run();
+
+    return ret;
+}
-- 
1.8.1.4