diff options
| author | Nicholas Piggin <npiggin@gmail.com> | 2020-03-26 00:29:03 +1000 |
|---|---|---|
| committer | David Gibson <david@gibson.dropbear.id.au> | 2020-04-07 08:55:10 +1000 |
| commit | ec010c00665ba1e78e6b3df104f923c4ea68504a (patch) | |
| tree | fd21867008d11d44d80364a2bf6359049d3a7e47 /hw/ppc/spapr_rtas.c | |
| parent | 79178edd2a0b012c5cd27e0168beb83ef4b617ef (diff) | |
ppc/spapr: KVM FWNMI should not be enabled until guest requests it
The KVM FWNMI capability should be enabled with the "ibm,nmi-register"
rtas call. Although MCEs from KVM will be delivered as architected
interrupts to the guest before "ibm,nmi-register" is called, KVM has
different behaviour depending on whether the guest has enabled FWNMI
(it attempts to do more recovery on behalf of a non-FWNMI guest).
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Message-Id: <20200325142906.221248-2-npiggin@gmail.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'hw/ppc/spapr_rtas.c')
| -rw-r--r-- | hw/ppc/spapr_rtas.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/hw/ppc/spapr_rtas.c b/hw/ppc/spapr_rtas.c index 9fb8c8632a..29abe66d01 100644 --- a/hw/ppc/spapr_rtas.c +++ b/hw/ppc/spapr_rtas.c @@ -437,6 +437,13 @@ static void rtas_ibm_nmi_register(PowerPCCPU *cpu, return; } + if (kvm_enabled()) { + if (kvmppc_set_fwnmi() < 0) { + rtas_st(rets, 0, RTAS_OUT_NOT_SUPPORTED); + return; + } + } + spapr->fwnmi_system_reset_addr = sreset_addr; spapr->fwnmi_machine_check_addr = mce_addr; |