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authorAli Saidi <Ali.Saidi@ARM.com>2012-03-02 08:18:19 -0600
committerAli Saidi <Ali.Saidi@ARM.com>2012-03-02 08:18:19 -0600
commitb129d7ce00a2cb6f0bbdcee90f0202cda8449117 (patch)
treed73047dde917179d69ad28a3fa41151370e4985a
parent96e37eb17c8d9182d27453dca52d0eb56fc613dd (diff)
downloadgem5-b129d7ce00a2cb6f0bbdcee90f0202cda8449117.tar.xz
ARM: FIx a bug preventing multiple cores booting a VExpress_EMM machine.
New kernel code verifies that multi-processor extensions are available before booting secondary CPUs.
-rw-r--r--src/arch/arm/isa.cc4
1 files changed, 3 insertions, 1 deletions
diff --git a/src/arch/arm/isa.cc b/src/arch/arm/isa.cc
index 9d76ca60e..b8a0fe282 100644
--- a/src/arch/arm/isa.cc
+++ b/src/arch/arm/isa.cc
@@ -189,7 +189,9 @@ ISA::readMiscReg(int misc_reg, ThreadContext *tc)
switch (misc_reg) {
case MISCREG_MPIDR:
- return tc->cpuId();
+
+ return 0x80000000 | // multiprocessor extensions available
+ tc->cpuId();
break;
case MISCREG_ID_MMFR0:
return 0x03; // VMSAv7 support