diff options
| author | James Hogan <james.hogan@imgtec.com> | 2015-04-24 11:26:53 +0100 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2015-07-16 20:00:20 +0200 |
| commit | 02dae26ac4ceb1e82c432cfca4d9b65ae82343c6 (patch) | |
| tree | e3bacac2e04b5f8ed722ebb86404cf95e7155e1d /target-mips | |
| parent | f8b3e48b2d269551cd40f94770dc20da2f402325 (diff) | |
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>
Diffstat (limited to 'target-mips')
| -rw-r--r-- | target-mips/kvm.c | 8 |
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, ®s); |