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target-ppc: Get MMU state on register sync 

While x86 only needs to sync cr0-4 to know all about its MMU state and enable
qemu to resolve virtual to physical addresses, we need to sync all of the
segment registers on PPC to know which mapping we're in.

So let's grab the segment register contents to be able to use the "x" monitor
command and also enable the gdbstub to resolve virtual addresses.

Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
This commit is contained in:
Alexander Graf 2009-12-02 23:19:47 +01:00 committed by Aurelien Jarno
parent feb9e61285
commit ba5e50908c
1 changed files with 30 additions and 0 deletions
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30
target-ppc/kvm.c
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@ -98,12 +98,17 @@ int kvm_arch_put_registers(CPUState *env)
int kvm_arch_get_registers(CPUState *env)
{
struct kvm_regs regs;
struct kvm_sregs sregs;
uint32_t i, ret;
ret = kvm_vcpu_ioctl(env, KVM_GET_REGS, &regs);
if (ret < 0)
return ret;
ret = kvm_vcpu_ioctl(env, KVM_GET_SREGS, &sregs);
if (ret < 0)
return ret;
env->ctr = regs.ctr;
env->lr = regs.lr;
env->xer = regs.xer;
@ -125,6 +130,31 @@ int kvm_arch_get_registers(CPUState *env)
for (i = 0;i < 32; i++)
env->gpr[i] = regs.gpr[i];
#ifdef KVM_CAP_PPC_SEGSTATE
if (kvm_check_extension(env->kvm_state, KVM_CAP_PPC_SEGSTATE)) {
env->sdr1 = sregs.u.s.sdr1;
/* Sync SLB */
for (i = 0; i < 64; i++) {
ppc_store_slb(env, sregs.u.s.ppc64.slb[i].slbe,
sregs.u.s.ppc64.slb[i].slbv);
}
/* Sync SRs */
for (i = 0; i < 16; i++) {
env->sr[i] = sregs.u.s.ppc32.sr[i];
}
/* Sync BATs */
for (i = 0; i < 8; i++) {
env->DBAT[0][i] = sregs.u.s.ppc32.dbat[i] & 0xffffffff;
env->DBAT[1][i] = sregs.u.s.ppc32.dbat[i] >> 32;
env->IBAT[0][i] = sregs.u.s.ppc32.ibat[i] & 0xffffffff;
env->IBAT[1][i] = sregs.u.s.ppc32.ibat[i] >> 32;
}
}
#endif
return 0;
}