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authorJames Hogan <james.hogan@imgtec.com>2015-04-24 11:26:53 +0100
committerPaolo Bonzini <pbonzini@redhat.com>2015-07-16 20:00:20 +0200
commit02dae26ac4ceb1e82c432cfca4d9b65ae82343c6 (patch)
treee3bacac2e04b5f8ed722ebb86404cf95e7155e1d
parentf8b3e48b2d269551cd40f94770dc20da2f402325 (diff)
downloadqemu-arm-02dae26ac4ceb1e82c432cfca4d9b65ae82343c6.tar.gz
mips/kvm: Sign extend registers written to KVM
In case we're running on a 64-bit host, be sure to sign extend the general purpose registers and hi/lo/pc before writing them to KVM, so as to take advantage of MIPS32/MIPS64 compatibility. Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Leon Alrae <leon.alrae@imgtec.com> Cc: Aurelien Jarno <aurelien@aurel32.net> Cc: kvm@vger.kernel.org Cc: qemu-stable@nongnu.org Message-Id: <1429871214-23514-3-git-send-email-james.hogan@imgtec.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
-rw-r--r--target-mips/kvm.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/target-mips/kvm.c b/target-mips/kvm.c
index 85256f3104..d287d42883 100644
--- a/target-mips/kvm.c
+++ b/target-mips/kvm.c
@@ -628,12 +628,12 @@ int kvm_arch_put_registers(CPUState *cs, int level)
/* Set the registers based on QEMU's view of things */
for (i = 0; i < 32; i++) {
- regs.gpr[i] = env->active_tc.gpr[i];
+ regs.gpr[i] = (int64_t)(target_long)env->active_tc.gpr[i];
}
- regs.hi = env->active_tc.HI[0];
- regs.lo = env->active_tc.LO[0];
- regs.pc = env->active_tc.PC;
+ regs.hi = (int64_t)(target_long)env->active_tc.HI[0];
+ regs.lo = (int64_t)(target_long)env->active_tc.LO[0];
+ regs.pc = (int64_t)(target_long)env->active_tc.PC;
ret = kvm_vcpu_ioctl(cs, KVM_SET_REGS, &regs);