diff --git a/tests/libqos/pci-spapr.c b/tests/libqos/pci-spapr.c
index ef52fcb..c0f7e6d 100644
--- a/tests/libqos/pci-spapr.c
+++ b/tests/libqos/pci-spapr.c
@@ -108,21 +108,24 @@ static uint8_t qpci_spapr_config_readb(QPCIBus *bus, int devfn, uint8_t offset)
 {
     QPCIBusSPAPR *s = container_of(bus, QPCIBusSPAPR, bus);
     uint32_t config_addr = (devfn << 8) | offset;
-    return qrtas_ibm_read_pci_config(s->alloc, s->buid, config_addr, 1);
+    return qrtas_ibm_read_pci_config(bus->qts, s->alloc, s->buid,
+                                     config_addr, 1);
 }
 
 static uint16_t qpci_spapr_config_readw(QPCIBus *bus, int devfn, uint8_t offset)
 {
     QPCIBusSPAPR *s = container_of(bus, QPCIBusSPAPR, bus);
     uint32_t config_addr = (devfn << 8) | offset;
-    return qrtas_ibm_read_pci_config(s->alloc, s->buid, config_addr, 2);
+    return qrtas_ibm_read_pci_config(bus->qts, s->alloc, s->buid,
+                                     config_addr, 2);
 }
 
 static uint32_t qpci_spapr_config_readl(QPCIBus *bus, int devfn, uint8_t offset)
 {
     QPCIBusSPAPR *s = container_of(bus, QPCIBusSPAPR, bus);
     uint32_t config_addr = (devfn << 8) | offset;
-    return qrtas_ibm_read_pci_config(s->alloc, s->buid, config_addr, 4);
+    return qrtas_ibm_read_pci_config(bus->qts, s->alloc, s->buid,
+                                     config_addr, 4);
 }
 
 static void qpci_spapr_config_writeb(QPCIBus *bus, int devfn, uint8_t offset,
@@ -130,7 +133,8 @@ static void qpci_spapr_config_writeb(QPCIBus *bus, int devfn, uint8_t offset,
 {
     QPCIBusSPAPR *s = container_of(bus, QPCIBusSPAPR, bus);
     uint32_t config_addr = (devfn << 8) | offset;
-    qrtas_ibm_write_pci_config(s->alloc, s->buid, config_addr, 1, value);
+    qrtas_ibm_write_pci_config(bus->qts, s->alloc, s->buid,
+                               config_addr, 1, value);
 }
 
 static void qpci_spapr_config_writew(QPCIBus *bus, int devfn, uint8_t offset,
@@ -138,7 +142,8 @@ static void qpci_spapr_config_writew(QPCIBus *bus, int devfn, uint8_t offset,
 {
     QPCIBusSPAPR *s = container_of(bus, QPCIBusSPAPR, bus);
     uint32_t config_addr = (devfn << 8) | offset;
-    qrtas_ibm_write_pci_config(s->alloc, s->buid, config_addr, 2, value);
+    qrtas_ibm_write_pci_config(bus->qts, s->alloc, s->buid,
+                               config_addr, 2, value);
 }
 
 static void qpci_spapr_config_writel(QPCIBus *bus, int devfn, uint8_t offset,
@@ -146,7 +151,8 @@ static void qpci_spapr_config_writel(QPCIBus *bus, int devfn, uint8_t offset,
 {
     QPCIBusSPAPR *s = container_of(bus, QPCIBusSPAPR, bus);
     uint32_t config_addr = (devfn << 8) | offset;
-    qrtas_ibm_write_pci_config(s->alloc, s->buid, config_addr, 4, value);
+    qrtas_ibm_write_pci_config(bus->qts, s->alloc, s->buid,
+                               config_addr, 4, value);
 }
 
 #define SPAPR_PCI_BASE               (1ULL << 45)
diff --git a/tests/libqos/rtas.c b/tests/libqos/rtas.c
index 0269803..d81ff42 100644
--- a/tests/libqos/rtas.c
+++ b/tests/libqos/rtas.c
@@ -7,26 +7,28 @@
 #include "libqtest.h"
 #include "libqos/rtas.h"
 
-static void qrtas_copy_args(uint64_t target_args, uint32_t nargs,
-                            uint32_t *args)
+static void qrtas_copy_args(QTestState *qts, uint64_t target_args,
+                            uint32_t nargs, uint32_t *args)
 {
     int i;
 
     for (i = 0; i < nargs; i++) {
-        writel(target_args + i * sizeof(uint32_t), args[i]);
+        qtest_writel(qts, target_args + i * sizeof(uint32_t), args[i]);
     }
 }
 
-static void qrtas_copy_ret(uint64_t target_ret, uint32_t nret, uint32_t *ret)
+static void qrtas_copy_ret(QTestState *qts, uint64_t target_ret,
+                           uint32_t nret, uint32_t *ret)
 {
     int i;
 
     for (i = 0; i < nret; i++) {
-        ret[i] = readl(target_ret + i * sizeof(uint32_t));
+        ret[i] = qtest_readl(qts, target_ret + i * sizeof(uint32_t));
     }
 }
 
-static uint64_t qrtas_call(QGuestAllocator *alloc, const char *name,
+static uint64_t qrtas_call(QTestState *qts, QGuestAllocator *alloc,
+                           const char *name,
                            uint32_t nargs, uint32_t *args,
                            uint32_t nret, uint32_t *ret)
 {
@@ -36,10 +38,9 @@ static uint64_t qrtas_call(QGuestAllocator *alloc, const char *name,
     target_args = guest_alloc(alloc, nargs * sizeof(uint32_t));
     target_ret = guest_alloc(alloc, nret * sizeof(uint32_t));
 
-    qrtas_copy_args(target_args, nargs, args);
-    res = qtest_rtas_call(global_qtest, name,
-                          nargs, target_args, nret, target_ret);
-    qrtas_copy_ret(target_ret, nret, ret);
+    qrtas_copy_args(qts, target_args, nargs, args);
+    res = qtest_rtas_call(qts, name, nargs, target_args, nret, target_ret);
+    qrtas_copy_ret(qts, target_ret, nret, ret);
 
     guest_free(alloc, target_ret);
     guest_free(alloc, target_args);
@@ -47,12 +48,13 @@ static uint64_t qrtas_call(QGuestAllocator *alloc, const char *name,
     return res;
 }
 
-int qrtas_get_time_of_day(QGuestAllocator *alloc, struct tm *tm, uint32_t *ns)
+int qrtas_get_time_of_day(QTestState *qts, QGuestAllocator *alloc,
+                          struct tm *tm, uint32_t *ns)
 {
     int res;
     uint32_t ret[8];
 
-    res = qrtas_call(alloc, "get-time-of-day", 0, NULL, 8, ret);
+    res = qrtas_call(qts, alloc, "get-time-of-day", 0, NULL, 8, ret);
     if (res != 0) {
         return res;
     }
@@ -70,7 +72,8 @@ int qrtas_get_time_of_day(QGuestAllocator *alloc, struct tm *tm, uint32_t *ns)
     return res;
 }
 
-uint32_t qrtas_ibm_read_pci_config(QGuestAllocator *alloc, uint64_t buid,
+uint32_t qrtas_ibm_read_pci_config(QTestState *qts, QGuestAllocator *alloc,
+                                   uint64_t buid,
                                    uint32_t addr, uint32_t size)
 {
     int res;
@@ -80,7 +83,7 @@ uint32_t qrtas_ibm_read_pci_config(QGuestAllocator *alloc, uint64_t buid,
     args[1] = buid >> 32;
     args[2] = buid & 0xffffffff;
     args[3] = size;
-    res = qrtas_call(alloc, "ibm,read-pci-config", 4, args, 2, ret);
+    res = qrtas_call(qts, alloc, "ibm,read-pci-config", 4, args, 2, ret);
     if (res != 0) {
         return -1;
     }
@@ -92,7 +95,8 @@ uint32_t qrtas_ibm_read_pci_config(QGuestAllocator *alloc, uint64_t buid,
     return ret[1];
 }
 
-int qrtas_ibm_write_pci_config(QGuestAllocator *alloc, uint64_t buid,
+int qrtas_ibm_write_pci_config(QTestState *qts, QGuestAllocator *alloc,
+                               uint64_t buid,
                                uint32_t addr, uint32_t size, uint32_t val)
 {
     int res;
@@ -103,7 +107,7 @@ int qrtas_ibm_write_pci_config(QGuestAllocator *alloc, uint64_t buid,
     args[2] = buid & 0xffffffff;
     args[3] = size;
     args[4] = val;
-    res = qrtas_call(alloc, "ibm,write-pci-config", 5, args, 1, ret);
+    res = qrtas_call(qts, alloc, "ibm,write-pci-config", 5, args, 1, ret);
     if (res != 0) {
         return -1;
     }
diff --git a/tests/libqos/rtas.h b/tests/libqos/rtas.h
index 498eb19..459e23a 100644
--- a/tests/libqos/rtas.h
+++ b/tests/libqos/rtas.h
@@ -7,9 +7,11 @@
 #define LIBQOS_RTAS_H
 #include "libqos/malloc.h"
 
-int qrtas_get_time_of_day(QGuestAllocator *alloc, struct tm *tm, uint32_t *ns);
-uint32_t qrtas_ibm_read_pci_config(QGuestAllocator *alloc, uint64_t buid,
-                                   uint32_t addr, uint32_t size);
-int qrtas_ibm_write_pci_config(QGuestAllocator *alloc, uint64_t buid,
-                               uint32_t addr, uint32_t size, uint32_t val);
+int qrtas_get_time_of_day(QTestState *qts, QGuestAllocator *alloc,
+                          struct tm *tm, uint32_t *ns);
+uint32_t qrtas_ibm_read_pci_config(QTestState *qts, QGuestAllocator *alloc,
+                                   uint64_t buid, uint32_t addr, uint32_t size);
+int qrtas_ibm_write_pci_config(QTestState *qts, QGuestAllocator *alloc,
+                               uint64_t buid, uint32_t addr, uint32_t size,
+                               uint32_t val);
 #endif /* LIBQOS_RTAS_H */
diff --git a/tests/rtas-test.c b/tests/rtas-test.c
index 276c87e..34a6921 100644
--- a/tests/rtas-test.c
+++ b/tests/rtas-test.c
@@ -16,7 +16,7 @@ static void test_rtas_get_time_of_day(void)
     qs = qtest_spapr_boot("-machine pseries");
 
     t1 = time(NULL);
-    ret = qrtas_get_time_of_day(qs->alloc, &tm, &ns);
+    ret = qrtas_get_time_of_day(qs->qts, qs->alloc, &tm, &ns);
     g_assert_cmpint(ret, ==, 0);
     t2 = mktimegm(&tm);
     g_assert(t2 - t1 < 5); /* 5 sec max to run the test */
