From ba5e50908c66751b2c387ece023b796be2563c47 Mon Sep 17 00:00:00 2001 From: Alexander Graf Date: Wed, 2 Dec 2009 23:19:47 +0100 Subject: [PATCH] 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 Signed-off-by: Aurelien Jarno --- target-ppc/kvm.c | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) diff --git a/target-ppc/kvm.c b/target-ppc/kvm.c index 4e1c65f121..2b5abf430e 100644 --- a/target-ppc/kvm.c +++ b/target-ppc/kvm.c @@ -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, ®s); 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; } -- GitLab