diff --git a/llvm/test/tools/llvm-mca/JSON/X86/instruction-tables-multiple-anonymous-regions.s b/llvm/test/tools/llvm-mca/JSON/X86/instruction-tables-multiple-anonymous-regions.s
--- a/llvm/test/tools/llvm-mca/JSON/X86/instruction-tables-multiple-anonymous-regions.s
+++ b/llvm/test/tools/llvm-mca/JSON/X86/instruction-tables-multiple-anonymous-regions.s
@@ -238,6 +238,11 @@
 # CHECK-NEXT:       }
 # CHECK-NEXT:     }
 # CHECK-NEXT:   ],
+# CHECK-NEXT:   "SimulationParameters": {
+# CHECK-NEXT:     "-march": "x86_64",
+# CHECK-NEXT:     "-mcpu": "haswell",
+# CHECK-NEXT:     "-mtriple": "x86_64-unknown-unknown"
+# CHECK-NEXT:   },
 # CHECK-NEXT:   "TargetInfo": {
 # CHECK-NEXT:     "CPUName": "haswell",
 # CHECK-NEXT:     "Resources": [
diff --git a/llvm/test/tools/llvm-mca/JSON/X86/instruction-tables-multiple-regions.s b/llvm/test/tools/llvm-mca/JSON/X86/instruction-tables-multiple-regions.s
--- a/llvm/test/tools/llvm-mca/JSON/X86/instruction-tables-multiple-regions.s
+++ b/llvm/test/tools/llvm-mca/JSON/X86/instruction-tables-multiple-regions.s
@@ -263,6 +263,11 @@
 # CHECK-NEXT:       }
 # CHECK-NEXT:     }
 # CHECK-NEXT:   ],
+# CHECK-NEXT:   "SimulationParameters": {
+# CHECK-NEXT:     "-march": "x86_64",
+# CHECK-NEXT:     "-mcpu": "haswell",
+# CHECK-NEXT:     "-mtriple": "x86_64-unknown-unknown"
+# CHECK-NEXT:   },
 # CHECK-NEXT:   "TargetInfo": {
 # CHECK-NEXT:     "CPUName": "haswell",
 # CHECK-NEXT:     "Resources": [
diff --git a/llvm/test/tools/llvm-mca/JSON/X86/views.s b/llvm/test/tools/llvm-mca/JSON/X86/views-custom-parameters.s
copy from llvm/test/tools/llvm-mca/JSON/X86/views.s
copy to llvm/test/tools/llvm-mca/JSON/X86/views-custom-parameters.s
--- a/llvm/test/tools/llvm-mca/JSON/X86/views.s
+++ b/llvm/test/tools/llvm-mca/JSON/X86/views-custom-parameters.s
@@ -2,8 +2,8 @@
 # Verify that we create proper JSON for the MCA views TimelineView, ResourcePressureview,
 # InstructionInfoView and SummaryView.
 
-# RUN: llvm-mca -mtriple=x86_64-unknown-unknown -mcpu=haswell --json --timeline-max-iterations=1 --timeline --all-stats --all-views < %s | FileCheck %s
-# RUN: llvm-mca -mtriple=x86_64-unknown-unknown -mcpu=haswell --json --timeline-max-iterations=1 --timeline --all-stats --all-views -o %t.json < %s
+# RUN: llvm-mca -mtriple=x86_64-unknown-unknown -mcpu=haswell -lqueue=12 -squeue=12 --json --timeline-max-iterations=1 --timeline --all-stats --all-views < %s | FileCheck %s
+# RUN: llvm-mca -mtriple=x86_64-unknown-unknown -mcpu=haswell -lqueue=12 -squeue=12 --json --timeline-max-iterations=1 --timeline --all-stats --all-views -o %t.json < %s
 # RUN: cat %t.json \
 # RUN:  | %python -c 'import json, sys; json.dump(json.loads(sys.stdin.read()), sys.stdout, sort_keys=True, indent=2)' \
 # RUN:  | FileCheck %s
@@ -160,6 +160,13 @@
 # CHECK-NEXT:       }
 # CHECK-NEXT:     }
 # CHECK-NEXT:   ],
+# CHECK-NEXT:   "SimulationParameters": {
+# CHECK-NEXT:     "-lqueue": 12,
+# CHECK-NEXT:     "-march": "x86_64",
+# CHECK-NEXT:     "-mcpu": "haswell",
+# CHECK-NEXT:     "-mtriple": "x86_64-unknown-unknown",
+# CHECK-NEXT:     "-squeue": 12
+# CHECK-NEXT:   },
 # CHECK-NEXT:   "TargetInfo": {
 # CHECK-NEXT:     "CPUName": "haswell",
 # CHECK-NEXT:     "Resources": [
diff --git a/llvm/test/tools/llvm-mca/JSON/X86/views-multiple-anonymous-regions.s b/llvm/test/tools/llvm-mca/JSON/X86/views-multiple-anonymous-regions.s
--- a/llvm/test/tools/llvm-mca/JSON/X86/views-multiple-anonymous-regions.s
+++ b/llvm/test/tools/llvm-mca/JSON/X86/views-multiple-anonymous-regions.s
@@ -567,6 +567,11 @@
 # CHECK-NEXT:       }
 # CHECK-NEXT:     }
 # CHECK-NEXT:   ],
+# CHECK-NEXT:   "SimulationParameters": {
+# CHECK-NEXT:     "-march": "x86_64",
+# CHECK-NEXT:     "-mcpu": "haswell",
+# CHECK-NEXT:     "-mtriple": "x86_64-unknown-unknown"
+# CHECK-NEXT:   },
 # CHECK-NEXT:   "TargetInfo": {
 # CHECK-NEXT:     "CPUName": "haswell",
 # CHECK-NEXT:     "Resources": [
diff --git a/llvm/test/tools/llvm-mca/JSON/X86/views-multiple-region.s b/llvm/test/tools/llvm-mca/JSON/X86/views-multiple-region.s
--- a/llvm/test/tools/llvm-mca/JSON/X86/views-multiple-region.s
+++ b/llvm/test/tools/llvm-mca/JSON/X86/views-multiple-region.s
@@ -274,6 +274,11 @@
 # CHECK-NEXT:       }
 # CHECK-NEXT:     }
 # CHECK-NEXT:   ],
+# CHECK-NEXT:   "SimulationParameters": {
+# CHECK-NEXT:     "-march": "x86_64",
+# CHECK-NEXT:     "-mcpu": "haswell",
+# CHECK-NEXT:     "-mtriple": "x86_64-unknown-unknown"
+# CHECK-NEXT:   },
 # CHECK-NEXT:   "TargetInfo": {
 # CHECK-NEXT:     "CPUName": "haswell",
 # CHECK-NEXT:     "Resources": [
diff --git a/llvm/test/tools/llvm-mca/JSON/X86/views.s b/llvm/test/tools/llvm-mca/JSON/X86/views.s
--- a/llvm/test/tools/llvm-mca/JSON/X86/views.s
+++ b/llvm/test/tools/llvm-mca/JSON/X86/views.s
@@ -160,6 +160,11 @@
 # CHECK-NEXT:       }
 # CHECK-NEXT:     }
 # CHECK-NEXT:   ],
+# CHECK-NEXT:   "SimulationParameters": {
+# CHECK-NEXT:     "-march": "x86_64",
+# CHECK-NEXT:     "-mcpu": "haswell",
+# CHECK-NEXT:     "-mtriple": "x86_64-unknown-unknown"
+# CHECK-NEXT:   },
 # CHECK-NEXT:   "TargetInfo": {
 # CHECK-NEXT:     "CPUName": "haswell",
 # CHECK-NEXT:     "Resources": [
diff --git a/llvm/tools/llvm-mca/PipelinePrinter.h b/llvm/tools/llvm-mca/PipelinePrinter.h
--- a/llvm/tools/llvm-mca/PipelinePrinter.h
+++ b/llvm/tools/llvm-mca/PipelinePrinter.h
@@ -19,6 +19,7 @@
 #include "Views/View.h"
 #include "llvm/ADT/SmallVector.h"
 #include "llvm/MC/MCSubtargetInfo.h"
+#include "llvm/MCA/Context.h"
 #include "llvm/MCA/Pipeline.h"
 #include "llvm/Support/raw_ostream.h"
 
@@ -41,16 +42,18 @@
   const CodeRegion &Region;
   unsigned RegionIdx;
   const MCSubtargetInfo &STI;
+  const PipelineOptions &PO;
   llvm::SmallVector<std::unique_ptr<View>, 8> Views;
 
   void printRegionHeader(llvm::raw_ostream &OS) const;
   json::Object getJSONReportRegion() const;
   json::Object getJSONTargetInfo() const;
+  json::Object getJSONSimulationParameters() const;
 
 public:
   PipelinePrinter(Pipeline &Pipe, const CodeRegion &R, unsigned Idx,
-                  const MCSubtargetInfo &STI)
-      : P(Pipe), Region(R), RegionIdx(Idx), STI(STI), Views() {}
+                  const MCSubtargetInfo &STI, const PipelineOptions &PO)
+      : P(Pipe), Region(R), RegionIdx(Idx), STI(STI), PO(PO), Views() {}
 
   void addView(std::unique_ptr<View> V) {
     P.addEventListener(V.get());
diff --git a/llvm/tools/llvm-mca/PipelinePrinter.cpp b/llvm/tools/llvm-mca/PipelinePrinter.cpp
--- a/llvm/tools/llvm-mca/PipelinePrinter.cpp
+++ b/llvm/tools/llvm-mca/PipelinePrinter.cpp
@@ -45,6 +45,39 @@
   return JO;
 }
 
+json::Object PipelinePrinter::getJSONSimulationParameters() const {
+  json::Object SimParameters({{"-mcpu", STI.getCPU()},
+                              {"-mtriple", STI.getTargetTriple().getTriple()},
+                              {"-march", STI.getTargetTriple().getArchName()}});
+
+  const MCSchedModel &SM = STI.getSchedModel();
+  if (!SM.isOutOfOrder())
+    return SimParameters;
+
+  if (PO.RegisterFileSize)
+    SimParameters.try_emplace("-register-file-size", PO.RegisterFileSize);
+
+  if (!PO.AssumeNoAlias)
+    SimParameters.try_emplace("-noalias", PO.AssumeNoAlias);
+
+  if (PO.DecodersThroughput)
+    SimParameters.try_emplace("-decoder-throughput", PO.DecodersThroughput);
+
+  if (PO.MicroOpQueueSize)
+    SimParameters.try_emplace("-micro-op-queue-size", PO.MicroOpQueueSize);
+
+  if (PO.DispatchWidth)
+    SimParameters.try_emplace("-dispatch", PO.DispatchWidth);
+
+  if (PO.LoadQueueSize)
+    SimParameters.try_emplace("-lqueue", PO.LoadQueueSize);
+
+  if (PO.StoreQueueSize)
+    SimParameters.try_emplace("-squeue", PO.StoreQueueSize);
+
+  return SimParameters;
+}
+
 json::Object PipelinePrinter::getJSONTargetInfo() const {
   json::Array Resources;
   const MCSchedModel &SM = STI.getSchedModel();
@@ -71,10 +104,9 @@
 }
 
 void PipelinePrinter::printReport(json::Object &JO) const {
-  if (!RegionIdx)
-    JO.try_emplace("TargetInfo", getJSONTargetInfo());
-
   if (!RegionIdx) {
+    JO.try_emplace("TargetInfo", getJSONTargetInfo());
+    JO.try_emplace("SimulationParameters", getJSONSimulationParameters());
     // Construct an array of regions.
     JO.try_emplace("CodeRegions", json::Array());
   }
diff --git a/llvm/tools/llvm-mca/llvm-mca.cpp b/llvm/tools/llvm-mca/llvm-mca.cpp
--- a/llvm/tools/llvm-mca/llvm-mca.cpp
+++ b/llvm/tools/llvm-mca/llvm-mca.cpp
@@ -569,7 +569,7 @@
       P->appendStage(std::make_unique<mca::EntryStage>(S));
       P->appendStage(std::make_unique<mca::InstructionTables>(SM));
 
-      mca::PipelinePrinter Printer(*P, *Region, RegionIdx, *STI);
+      mca::PipelinePrinter Printer(*P, *Region, RegionIdx, *STI, PO);
       if (PrintJson) {
         Printer.addView(
             std::make_unique<mca::InstructionView>(*STI, *IP, Insts));
@@ -608,7 +608,7 @@
     // Create a basic pipeline simulating an out-of-order backend.
     auto P = MCA.createDefaultPipeline(PO, S, *CB);
 
-    mca::PipelinePrinter Printer(*P, *Region, RegionIdx, *STI);
+    mca::PipelinePrinter Printer(*P, *Region, RegionIdx, *STI, PO);
 
     // When we output JSON, we add a view that contains the instructions
     // and CPU resource information.