arm: Add support for ARMv8 (AArch64 & AArch32)

Note: AArch64 and AArch32 interworking is not supported. If you use an AArch64
kernel you are restricted to AArch64 user-mode binaries. This will be addressed
in a later patch.

Note: Virtualization is only supported in AArch32 mode. This will also be fixed
in a later patch.

Contributors:
Giacomo Gabrielli    (TrustZone, LPAE, system-level AArch64, AArch64 NEON, validation)
Thomas Grocutt       (AArch32 Virtualization, AArch64 FP, validation)
Mbou Eyole           (AArch64 NEON, validation)
Ali Saidi            (AArch64 Linux support, code integration, validation)
Edmund Grimley-Evans (AArch64 FP)
William Wang         (AArch64 Linux support)
Rene De Jong         (AArch64 Linux support, performance opt.)
Matt Horsnell        (AArch64 MP, validation)
Matt Evans           (device models, code integration, validation)
Chris Adeniyi-Jones  (AArch64 syscall-emulation)
Prakash Ramrakhyani  (validation)
Dam Sunwoo           (validation)
Chander Sudanthi     (validation)
Stephan Diestelhorst (validation)
Andreas Hansson      (code integration, performance opt.)
Eric Van Hensbergen  (performance opt.)
Gabe Black

1 files changed, 7 insertions, 5 deletions

diff --git a/src/sim/system.cc b/src/sim/system.cc
index 7de483216..e2bf0a3d2 100644
--- a/src/sim/system.cc
+++ b/src/sim/system.cc
@@ -79,6 +79,7 @@ System::System(Params *p)
       init_param(p->init_param),
       physProxy(_systemPort, p->cache_line_size),
       loadAddrMask(p->load_addr_mask),
+      loadAddrOffset(p->load_offset),
       nextPID(0),
       physmem(name() + ".physmem", p->memories),
       memoryMode(p->mem_mode),
@@ -274,14 +275,15 @@ System::initState()
          */
         if (params()->kernel != "")  {
             // Validate kernel mapping before loading binary
-            if (!(isMemAddr(kernelStart & loadAddrMask) &&
-                            isMemAddr(kernelEnd & loadAddrMask))) {
+            if (!(isMemAddr((kernelStart & loadAddrMask) + loadAddrOffset) &&
+                     isMemAddr((kernelEnd & loadAddrMask) + loadAddrOffset))) {
                 fatal("Kernel is mapped to invalid location (not memory). "
-                      "kernelStart 0x(%x) - kernelEnd 0x(%x)\n", kernelStart,
-                      kernelEnd);
+                      "kernelStart 0x(%x) - kernelEnd 0x(%x) %#x:%#x\n", kernelStart,
+                      kernelEnd, (kernelStart & loadAddrMask) + loadAddrOffset,
+                      (kernelEnd & loadAddrMask) + loadAddrOffset);
             }
             // Load program sections into memory
-            kernel->loadSections(physProxy, loadAddrMask);
+            kernel->loadSections(physProxy, loadAddrMask, loadAddrOffset);
 
             DPRINTF(Loader, "Kernel start = %#x\n", kernelStart);
             DPRINTF(Loader, "Kernel end   = %#x\n", kernelEnd);