libqos: add pc specific interface

Create an operations structure so that the libqos interface can be
architecture agnostic, and create a pc-specific interface to functions
like qtest_boot.

Move the libqos object in the Makefile from being ahci-test only to
being linked with all tests that utilize the libqos features.
Signed-off-by: NJohn Snow <jsnow@redhat.com>
Reviewed-by: NPaolo Bonzini <pbonzini@redhat.com>
Message-id: 1421698563-6977-8-git-send-email-jsnow@redhat.com
Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>

tests/Makefile

@@ -307,9 +307,9 @@ tests/test-mul64$(EXESUF): tests/test-mul64.o libqemuutil.a
 tests/test-bitops$(EXESUF): tests/test-bitops.o libqemuutil.a
 
 libqos-obj-y = tests/libqos/pci.o tests/libqos/fw_cfg.o tests/libqos/malloc.o
-libqos-obj-y += tests/libqos/i2c.o
+libqos-obj-y += tests/libqos/i2c.o tests/libqos/libqos.o
 libqos-pc-obj-y = $(libqos-obj-y) tests/libqos/pci-pc.o
-libqos-pc-obj-y += tests/libqos/malloc-pc.o
+libqos-pc-obj-y += tests/libqos/malloc-pc.o tests/libqos/libqos-pc.o
 libqos-omap-obj-y = $(libqos-obj-y) tests/libqos/i2c-omap.o
 libqos-virtio-obj-y = $(libqos-obj-y) $(libqos-pc-obj-y) tests/libqos/virtio.o tests/libqos/virtio-pci.o
 libqos-usb-obj-y = $(libqos-pc-obj-y) tests/libqos/usb.o
@@ -320,7 +320,7 @@ tests/endianness-test$(EXESUF): tests/endianness-test.o
 tests/spapr-phb-test$(EXESUF): tests/spapr-phb-test.o $(libqos-obj-y)
 tests/fdc-test$(EXESUF): tests/fdc-test.o
 tests/ide-test$(EXESUF): tests/ide-test.o $(libqos-pc-obj-y)
-tests/ahci-test$(EXESUF): tests/ahci-test.o $(libqos-pc-obj-y) tests/libqos/libqos.o
+tests/ahci-test$(EXESUF): tests/ahci-test.o $(libqos-pc-obj-y)
 tests/hd-geo-test$(EXESUF): tests/hd-geo-test.o
 tests/boot-order-test$(EXESUF): tests/boot-order-test.o $(libqos-obj-y)
 tests/bios-tables-test$(EXESUF): tests/bios-tables-test.o $(libqos-obj-y)

tests/ahci-test.c

@@ -29,7 +29,7 @@
 #include <glib.h>
 
 #include "libqtest.h"
-#include "libqos/libqos.h"
+#include "libqos/libqos-pc.h"
 #include "libqos/ahci.h"
 #include "libqos/pci-pc.h"
 #include "libqos/malloc-pc.h"
@@ -151,7 +151,7 @@ static AHCIQState *ahci_boot(void)
         " -M q35 "
         "-device ide-hd,drive=drive0 "
         "-global ide-hd.ver=%s";
-    s->parent = qtest_boot(cli, tmp_path, "testdisk", "version");
+    s->parent = qtest_pc_boot(cli, tmp_path, "testdisk", "version");
 
     /* Verify that we have an AHCI device present. */
     s->dev = get_ahci_device();

tests/libqos/libqos-pc.c

+#include "libqos/libqos-pc.h"
+#include "libqos/malloc-pc.h"
+
+static QOSOps qos_ops = {
+    .init_allocator = pc_alloc_init_flags,
+    .uninit_allocator = pc_alloc_uninit
+};
+
+QOSState *qtest_pc_boot(const char *cmdline_fmt, ...)
+{
+    QOSState *qs;
+    va_list ap;
+
+    va_start(ap, cmdline_fmt);
+    qs = qtest_vboot(&qos_ops, cmdline_fmt, ap);
+    va_end(ap);
+
+    return qs;
+}
+
+void qtest_pc_shutdown(QOSState *qs)
+{
+    return qtest_shutdown(qs);
+}

tests/libqos/libqos-pc.h

+#ifndef __libqos_pc_h
+#define __libqos_pc_h
+
+#include "libqos/libqos.h"
+
+QOSState *qtest_pc_boot(const char *cmdline_fmt, ...);
+void qtest_pc_shutdown(QOSState *qs);
+
+#endif

tests/libqos/libqos.c

@@ -8,7 +8,6 @@
 #include "libqtest.h"
 #include "libqos/libqos.h"
 #include "libqos/pci.h"
-#include "libqos/malloc-pc.h"
 
 /*** Test Setup & Teardown ***/
 
@@ -16,7 +15,7 @@
  * Launch QEMU with the given command line,
  * and then set up interrupts and our guest malloc interface.
  */
-QOSState *qtest_vboot(const char *cmdline_fmt, va_list ap)
+QOSState *qtest_vboot(QOSOps *ops, const char *cmdline_fmt, va_list ap)
 {
     char *cmdline;
 
@@ -24,8 +23,11 @@ QOSState *qtest_vboot(const char *cmdline_fmt, va_list ap)
 
     cmdline = g_strdup_vprintf(cmdline_fmt, ap);
     qs->qts = qtest_start(cmdline);
+    qs->ops = ops;
     qtest_irq_intercept_in(global_qtest, "ioapic");
-    qs->alloc = pc_alloc_init();
+    if (ops && ops->init_allocator) {
+        qs->alloc = ops->init_allocator(ALLOC_NO_FLAGS);
+    }
 
     g_free(cmdline);
     return qs;
@@ -35,13 +37,13 @@ QOSState *qtest_vboot(const char *cmdline_fmt, va_list ap)
  * Launch QEMU with the given command line,
  * and then set up interrupts and our guest malloc interface.
  */
-QOSState *qtest_boot(const char *cmdline_fmt, ...)
+QOSState *qtest_boot(QOSOps *ops, const char *cmdline_fmt, ...)
 {
     QOSState *qs;
     va_list ap;
 
     va_start(ap, cmdline_fmt);
-    qs = qtest_vboot(cmdline_fmt, ap);
+    qs = qtest_vboot(ops, cmdline_fmt, ap);
     va_end(ap);
 
     return qs;
@@ -52,8 +54,8 @@ QOSState *qtest_boot(const char *cmdline_fmt, ...)
  */
 void qtest_shutdown(QOSState *qs)
 {
-    if (qs->alloc) {
-        pc_alloc_uninit(qs->alloc);
+    if (qs->alloc && qs->ops && qs->ops->uninit_allocator) {
+        qs->ops->uninit_allocator(qs->alloc);
         qs->alloc = NULL;
     }
     qtest_quit(qs->qts);

tests/libqos/libqos.h

@@ -5,13 +5,19 @@
 #include "libqos/pci.h"
 #include "libqos/malloc-pc.h"
 
+typedef struct QOSOps {
+    QGuestAllocator *(*init_allocator)(QAllocOpts);
+    void (*uninit_allocator)(QGuestAllocator *);
+} QOSOps;
+
 typedef struct QOSState {
     QTestState *qts;
     QGuestAllocator *alloc;
+    QOSOps *ops;
 } QOSState;
 
-QOSState *qtest_vboot(const char *cmdline_fmt, va_list ap);
-QOSState *qtest_boot(const char *cmdline_fmt, ...);
+QOSState *qtest_vboot(QOSOps *ops, const char *cmdline_fmt, va_list ap);
+QOSState *qtest_boot(QOSOps *ops, const char *cmdline_fmt, ...);
 void qtest_shutdown(QOSState *qs);
 
 static inline uint64_t qmalloc(QOSState *q, size_t bytes)