diff options
| author | James Hogan <james.hogan@imgtec.com> | 2015-04-24 11:26:53 +0100 |
|---|---|---|
| committer | Michael Roth <mdroth@linux.vnet.ibm.com> | 2015-07-29 22:00:11 -0500 |
| commit | 87740cecc3f51f030c27f99812761b64b8f7d707 (patch) | |
| tree | 3af8b375312921378088619107138394897ed4c1 | |
| parent | 8df2a9acd2a345d5258ce80f37851097df7d5258 (diff) | |
| download | qemu-87740cecc3f51f030c27f99812761b64b8f7d707.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>
(cherry picked from commit 02dae26ac4ceb1e82c432cfca4d9b65ae82343c6)
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
| -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 1597bbeac1..d5388ca275 100644 --- a/target-mips/kvm.c +++ b/target-mips/kvm.c @@ -633,12 +633,12 @@ 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); |