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Merge remote-tracking branch 'remotes/powerpc/topic/ppc-kvm' into kvm-ppc-next

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This merges in the "ppc-kvm" topic branch of the powerpc tree to get a
series of commits that touch both general arch/powerpc code and KVM
code.  These commits will be merged both via the KVM tree and the
powerpc tree.

Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
This commit is contained in:
Paul Mackerras
2019-02-22 13:52:30 +11:00
parent 716cb11608 c3c7470c75
commit 0a0c50f771
8 changed files with 71 additions and 100 deletions
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25
arch/powerpc/kvm/book3s_hv.c
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@@ -1217,6 +1217,22 @@ static int kvmppc_handle_exit_hv(struct kvm_run *run, struct kvm_vcpu *vcpu,
r = RESUME_GUEST;
break;
case BOOK3S_INTERRUPT_MACHINE_CHECK:
/* Print the MCE event to host console. */
machine_check_print_event_info(&vcpu->arch.mce_evt, false, true);
/*
* If the guest can do FWNMI, exit to userspace so it can
* deliver a FWNMI to the guest.
* Otherwise we synthesize a machine check for the guest
* so that it knows that the machine check occurred.
*/
if (!vcpu->kvm->arch.fwnmi_enabled) {
ulong flags = vcpu->arch.shregs.msr & 0x083c0000;
kvmppc_core_queue_machine_check(vcpu, flags);
r = RESUME_GUEST;
break;
}
/* Exit to guest with KVM_EXIT_NMI as exit reason */
run->exit_reason = KVM_EXIT_NMI;
run->hw.hardware_exit_reason = vcpu->arch.trap;
@@ -1229,8 +1245,6 @@ static int kvmppc_handle_exit_hv(struct kvm_run *run, struct kvm_vcpu *vcpu,
run->flags |= KVM_RUN_PPC_NMI_DISP_NOT_RECOV;
r = RESUME_HOST;
/* Print the MCE event to host console. */
machine_check_print_event_info(&vcpu->arch.mce_evt, false);
break;
case BOOK3S_INTERRUPT_PROGRAM:
{
@@ -1394,7 +1408,7 @@ static int kvmppc_handle_nested_exit(struct kvm_run *run, struct kvm_vcpu *vcpu)
/* Pass the machine check to the L1 guest */
r = RESUME_HOST;
/* Print the MCE event to host console. */
machine_check_print_event_info(&vcpu->arch.mce_evt, false);
machine_check_print_event_info(&vcpu->arch.mce_evt, false, true);
break;
/*
* We get these next two if the guest accesses a page which it thinks
@@ -3457,6 +3471,7 @@ int kvmhv_p9_guest_entry(struct kvm_vcpu *vcpu, u64 time_limit,
unsigned long host_dscr = mfspr(SPRN_DSCR);
unsigned long host_tidr = mfspr(SPRN_TIDR);
unsigned long host_iamr = mfspr(SPRN_IAMR);
unsigned long host_amr = mfspr(SPRN_AMR);
s64 dec;
u64 tb;
int trap, save_pmu;
@@ -3573,13 +3588,15 @@ int kvmhv_p9_guest_entry(struct kvm_vcpu *vcpu, u64 time_limit,
mtspr(SPRN_PSPB, 0);
mtspr(SPRN_WORT, 0);
mtspr(SPRN_AMR, 0);
mtspr(SPRN_UAMOR, 0);
mtspr(SPRN_DSCR, host_dscr);
mtspr(SPRN_TIDR, host_tidr);
mtspr(SPRN_IAMR, host_iamr);
mtspr(SPRN_PSPB, 0);
if (host_amr != vcpu->arch.amr)
mtspr(SPRN_AMR, host_amr);
msr_check_and_set(MSR_FP | MSR_VEC | MSR_VSX);
store_fp_state(&vcpu->arch.fp);
#ifdef CONFIG_ALTIVEC