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mips/kvm: Sign extend registers written to KVM

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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>
This commit is contained in:
James Hogan 2015-04-24 11:26:53 +01:00 committed by Paolo Bonzini
parent f8b3e48b2d
commit 02dae26ac4
1 changed files with 4 additions and 4 deletions
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8
target-mips/kvm.c
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@ -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);