fastmodel: Add an address translation mechanism to the ThreadContext.

This will be used by the TLB to do the actual translation.
Unfortunately there isn't a great way to tell what translation type to
use, so we just go through all of them for now. The ARM subclass might
specialize and figure out which address spaces to use based on control
register state.

Change-Id: Id1fcad66554acf9d69af683917b3c2834f825da0
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/22118
Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Maintainer: Giacomo Travaglini <giacomo.travaglini@arm.com>
Tested-by: kokoro <noreply+kokoro@google.com>

1 files changed, 8 insertions, 0 deletions

diff --git a/src/arch/arm/fastmodel/iris/thread_context.hh b/src/arch/arm/fastmodel/iris/thread_context.hh
index d0e920e60..49b3325e7 100644
--- a/src/arch/arm/fastmodel/iris/thread_context.hh
+++ b/src/arch/arm/fastmodel/iris/thread_context.hh
@@ -74,6 +74,9 @@ class ThreadContext : public ::ThreadContext
     ResourceIds miscRegIds;
     ResourceIds intRegIds;
 
+    std::vector<iris::MemorySpaceInfo> memorySpaces;
+    std::vector<iris::MemorySupportedAddressTranslationResult> translations;
+
 
     // A queue to keep track of instruction count based events.
     EventQueue comInstEventQueue;
@@ -101,6 +104,9 @@ class ThreadContext : public ::ThreadContext
     iris::IrisCppAdapter &call() const { return client.irisCall(); }
     iris::IrisCppAdapter &noThrow() const { return client.irisCallNoThrow(); }
 
+    bool translateAddress(Addr &paddr, iris::MemorySpaceId p_space,
+                          Addr vaddr, iris::MemorySpaceId v_space);
+
   public:
     ThreadContext(::BaseCPU *cpu, int id, System *system,
                   ::BaseTLB *dtb, ::BaseTLB *itb,
@@ -108,6 +114,8 @@ class ThreadContext : public ::ThreadContext
                   const std::string &iris_path);
     virtual ~ThreadContext();
 
+    virtual bool translateAddress(Addr &paddr, Addr vaddr) = 0;
+
     bool schedule(PCEvent *e) override { return false; }
     bool remove(PCEvent *e) override { return false; }