Previous patch Removed 'x-' prefix from 'x-flts' property.
Opportunistically, this patch does s/flts/fsts for property name
in order to better align with newer spec since revision 3.4 which
changed terminology from "First-level" to "First-stage".

Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
---
 docs/devel/vfio-iommufd.rst    |  8 ++++----
 hw/i386/intel_iommu.c          | 10 +++++-----
 hw/i386/intel_iommu_accel.c    |  6 +++---
 tests/qtest/intel-iommu-test.c |  2 +-
 4 files changed, 13 insertions(+), 13 deletions(-)

diff --git a/docs/devel/vfio-iommufd.rst b/docs/devel/vfio-iommufd.rst
index 5755532443..d5538461ba 100644
--- a/docs/devel/vfio-iommufd.rst
+++ b/docs/devel/vfio-iommufd.rst
@@ -153,22 +153,22 @@ RAM discarding for mdev.
 ``vfio-ap`` and ``vfio-ccw`` devices don't have same issue as their backend
 devices are always mdev and RAM discarding is force enabled.
 
-Usage with intel_iommu featuring flts=on
+Usage with intel_iommu featuring fsts=on
 ------------------------------------------
 
 Only IOMMUFD backed VFIO device is supported when intel_iommu is configured
-with flts=on, for legacy container backed VFIO device, below error shows:
+with fsts=on, for legacy container backed VFIO device, below error shows:
 
 .. code-block:: none
 
-    qemu-system-x86_64: -device vfio-pci,host=0000:02:00.0: vfio 0000:02:00.0: Failed to set vIOMMU: Need IOMMUFD backend when flts=on
+    qemu-system-x86_64: -device vfio-pci,host=0000:02:00.0: vfio 0000:02:00.0: Failed to set vIOMMU: Need IOMMUFD backend when fsts=on
 
 VFIO device under PCI bridge is unsupported, use PCIE bridge if necessary,
 otherwise below error shows:
 
 .. code-block:: none
 
-    qemu-system-x86_64: -device vfio-pci,host=0000:02:00.0,bus=bridge1,iommufd=iommufd0: vfio 0000:02:00.0: Failed to set vIOMMU: Host device downstream to a PCI bridge is unsupported when flts=on
+    qemu-system-x86_64: -device vfio-pci,host=0000:02:00.0,bus=bridge1,iommufd=iommufd0: vfio 0000:02:00.0: Failed to set vIOMMU: Host device downstream to a PCI bridge is unsupported when fsts=on
 
 If host IOMMU has ERRATA_772415_SPR17, running guest with "intel_iommu=on,sm_off"
 is unsupported, kexec or reboot guest from "intel_iommu=on,sm_on" to
diff --git a/hw/i386/intel_iommu.c b/hw/i386/intel_iommu.c
index fb6bbc3447..282c05ed19 100644
--- a/hw/i386/intel_iommu.c
+++ b/hw/i386/intel_iommu.c
@@ -4201,7 +4201,7 @@ static const Property vtd_properties[] = {
                       VTD_HOST_ADDRESS_WIDTH),
     DEFINE_PROP_BOOL("caching-mode", IntelIOMMUState, caching_mode, FALSE),
     DEFINE_PROP_BOOL("scalable-mode", IntelIOMMUState, scalable_mode, FALSE),
-    DEFINE_PROP_BOOL("flts", IntelIOMMUState, fsts, FALSE),
+    DEFINE_PROP_BOOL("fsts", IntelIOMMUState, fsts, FALSE),
     DEFINE_PROP_BOOL("snoop-control", IntelIOMMUState, snoop_control, false),
     DEFINE_PROP_BOOL("x-pasid-mode", IntelIOMMUState, pasid, false),
     DEFINE_PROP_BOOL("svm", IntelIOMMUState, svm, false),
@@ -5560,20 +5560,20 @@ static bool vtd_decide_config(IntelIOMMUState *s, Error **errp)
     }
 
     if (!s->scalable_mode && s->fsts) {
-        error_setg(errp, "flts is only available in scalable mode");
+        error_setg(errp, "fsts is only available in scalable mode");
         return false;
     }
 
     if (!s->fsts && s->aw_bits != VTD_HOST_AW_39BIT &&
         s->aw_bits != VTD_HOST_AW_48BIT) {
         error_setg(errp, "%s: supported values for aw-bits are: %d, %d",
-                   s->scalable_mode ? "Scalable mode(flts=off)" : "Legacy mode",
+                   s->scalable_mode ? "Scalable mode(fsts=off)" : "Legacy mode",
                    VTD_HOST_AW_39BIT, VTD_HOST_AW_48BIT);
         return false;
     }
 
     if (s->fsts && s->aw_bits != VTD_HOST_AW_48BIT) {
-        error_setg(errp, "Scalable mode(flts=on): supported value for "
+        error_setg(errp, "Scalable mode(fsts=on): supported value for "
                    "aw-bits is: %d", VTD_HOST_AW_48BIT);
         return false;
     }
@@ -5590,7 +5590,7 @@ static bool vtd_decide_config(IntelIOMMUState *s, Error **errp)
         }
 
         if (!s->fsts) {
-            error_setg(errp, "Need to set flts for svm");
+            error_setg(errp, "Need to set fsts for svm");
             return false;
         }
 
diff --git a/hw/i386/intel_iommu_accel.c b/hw/i386/intel_iommu_accel.c
index b28d5eb9fa..43d2993fb3 100644
--- a/hw/i386/intel_iommu_accel.c
+++ b/hw/i386/intel_iommu_accel.c
@@ -26,7 +26,7 @@ bool vtd_check_hiod_accel(IntelIOMMUState *s, VTDHostIOMMUDevice *vtd_hiod,
     PCIDevice *pdev = bus->devices[vtd_hiod->devfn];
 
     if (!object_dynamic_cast(OBJECT(hiod), TYPE_HOST_IOMMU_DEVICE_IOMMUFD)) {
-        error_setg(errp, "Need IOMMUFD backend when flts=on");
+        error_setg(errp, "Need IOMMUFD backend when fsts=on");
         return false;
     }
 
@@ -44,7 +44,7 @@ bool vtd_check_hiod_accel(IntelIOMMUState *s, VTDHostIOMMUDevice *vtd_hiod,
 
     if (pci_device_get_iommu_bus_devfn(pdev, &bus, NULL, NULL)) {
         error_setg(errp, "Host device downstream to a PCI bridge is "
-                   "unsupported when flts=on");
+                   "unsupported when fsts=on");
         return false;
     }
 
@@ -105,7 +105,7 @@ static bool vtd_device_attach_iommufd(VTDHostIOMMUDevice *vtd_hiod,
     bool ret;
 
     /*
-     * We can get here only if flts=on, the supported PGTT is FST or PT.
+     * We can get here only if fsts=on, the supported PGTT is FST or PT.
      * Catch invalid PGTT when processing invalidation request to avoid
      * attaching to wrong hwpt.
      */
diff --git a/tests/qtest/intel-iommu-test.c b/tests/qtest/intel-iommu-test.c
index 4f12c56260..30ee6524df 100644
--- a/tests/qtest/intel-iommu-test.c
+++ b/tests/qtest/intel-iommu-test.c
@@ -29,7 +29,7 @@ static void test_intel_iommu_stage_1(void)
     uint64_t cap, ecap, tmp;
     QTestState *s;
 
-    s = qtest_init("-M q35 -device intel-iommu,scalable-mode=on,flts=on");
+    s = qtest_init("-M q35 -device intel-iommu,scalable-mode=on,fsts=on");
 
     cap = vtd_reg_readq(s, DMAR_CAP_REG);
     g_assert((cap & CAP_STAGE_1_FIXED1) == CAP_STAGE_1_FIXED1);
-- 
2.47.3