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.
2012-03-02 08:18:19 -06:00
parent 96e37eb17c
commit b129d7ce00
1 changed files with 3 additions and 1 deletions
--- 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