From 330a21e3c45e9bee5f47e032b678a48e1ed84e9e Mon Sep 17 00:00:00 2001 From: Greg Kurz Date: Mon, 17 Jun 2019 15:46:57 +0200 Subject: [PATCH] xics/kvm: Add error propagation to ic*_set_kvm_state() functions MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This allows errors happening there to be propagated up to spapr_irq, just like XIVE already does. Signed-off-by: Greg Kurz Message-Id: <156077921763.433243.4614327010172954196.stgit@bahia.lan> Reviewed-by: Cédric Le Goater Signed-off-by: David Gibson --- hw/intc/xics.c | 39 ++++++++++++++++++++++++++++++++++----- hw/intc/xics_kvm.c | 37 ++++++++++++++++++++++--------------- include/hw/ppc/xics.h | 6 +++--- 3 files changed, 59 insertions(+), 23 deletions(-) diff --git a/hw/intc/xics.c b/hw/intc/xics.c index 978d7f0886..faa976e2f8 100644 --- a/hw/intc/xics.c +++ b/hw/intc/xics.c @@ -267,7 +267,14 @@ static int icp_post_load(void *opaque, int version_id) ICPState *icp = opaque; if (kvm_irqchip_in_kernel()) { - return icp_set_kvm_state(icp); + Error *local_err = NULL; + int ret; + + ret = icp_set_kvm_state(icp, &local_err); + if (ret < 0) { + error_report_err(local_err); + return ret; + } } return 0; @@ -300,7 +307,12 @@ static void icp_reset_handler(void *dev) qemu_set_irq(icp->output, 0); if (kvm_irqchip_in_kernel()) { - icp_set_kvm_state(ICP(dev)); + Error *local_err = NULL; + + icp_set_kvm_state(ICP(dev), &local_err); + if (local_err) { + error_report_err(local_err); + } } } @@ -564,7 +576,12 @@ static void ics_simple_reset(DeviceState *dev) icsc->parent_reset(dev); if (kvm_irqchip_in_kernel()) { - ics_set_kvm_state(ICS_BASE(dev)); + Error *local_err = NULL; + + ics_set_kvm_state(ICS_BASE(dev), &local_err); + if (local_err) { + error_report_err(local_err); + } } } @@ -680,7 +697,14 @@ static int ics_base_post_load(void *opaque, int version_id) ICSState *ics = opaque; if (kvm_irqchip_in_kernel()) { - return ics_set_kvm_state(ics); + Error *local_err = NULL; + int ret; + + ret = ics_set_kvm_state(ics, &local_err); + if (ret < 0) { + error_report_err(local_err); + return ret; + } } return 0; @@ -766,8 +790,13 @@ void ics_set_irq_type(ICSState *ics, int srcno, bool lsi) lsi ? XICS_FLAGS_IRQ_LSI : XICS_FLAGS_IRQ_MSI; if (kvm_irqchip_in_kernel()) { + Error *local_err = NULL; + ics_reset_irq(ics->irqs + srcno); - ics_set_kvm_state_one(ics, srcno); + ics_set_kvm_state_one(ics, srcno, &local_err); + if (local_err) { + error_report_err(local_err); + } } } diff --git a/hw/intc/xics_kvm.c b/hw/intc/xics_kvm.c index c9e25fb051..4bfbe1a840 100644 --- a/hw/intc/xics_kvm.c +++ b/hw/intc/xics_kvm.c @@ -106,7 +106,7 @@ void icp_synchronize_state(ICPState *icp) } } -int icp_set_kvm_state(ICPState *icp) +int icp_set_kvm_state(ICPState *icp, Error **errp) { uint64_t state; int ret; @@ -126,10 +126,11 @@ int icp_set_kvm_state(ICPState *icp) | ((uint64_t)icp->pending_priority << KVM_REG_PPC_ICP_PPRI_SHIFT); ret = kvm_set_one_reg(icp->cs, KVM_REG_PPC_ICP_STATE, &state); - if (ret != 0) { - error_report("Unable to restore KVM interrupt controller state (0x%" - PRIx64 ") for CPU %ld: %s", state, kvm_arch_vcpu_id(icp->cs), - strerror(errno)); + if (ret < 0) { + error_setg_errno(errp, -ret, + "Unable to restore KVM interrupt controller state (0x%" + PRIx64 ") for CPU %ld", state, + kvm_arch_vcpu_id(icp->cs)); return ret; } @@ -240,10 +241,9 @@ void ics_synchronize_state(ICSState *ics) ics_get_kvm_state(ics); } -int ics_set_kvm_state_one(ICSState *ics, int srcno) +int ics_set_kvm_state_one(ICSState *ics, int srcno, Error **errp) { uint64_t state; - Error *local_err = NULL; ICSIRQState *irq = &ics->irqs[srcno]; int ret; @@ -278,16 +278,15 @@ int ics_set_kvm_state_one(ICSState *ics, int srcno) } ret = kvm_device_access(kernel_xics_fd, KVM_DEV_XICS_GRP_SOURCES, - srcno + ics->offset, &state, true, &local_err); - if (local_err) { - error_report_err(local_err); + srcno + ics->offset, &state, true, errp); + if (ret < 0) { return ret; } return 0; } -int ics_set_kvm_state(ICSState *ics) +int ics_set_kvm_state(ICSState *ics, Error **errp) { int i; @@ -297,10 +296,12 @@ int ics_set_kvm_state(ICSState *ics) } for (i = 0; i < ics->nr_irqs; i++) { + Error *local_err = NULL; int ret; - ret = ics_set_kvm_state_one(ics, i); - if (ret) { + ret = ics_set_kvm_state_one(ics, i, &local_err); + if (ret < 0) { + error_propagate(errp, local_err); return ret; } } @@ -402,12 +403,18 @@ int xics_kvm_connect(SpaprMachineState *spapr, Error **errp) } /* Update the KVM sources */ - ics_set_kvm_state(spapr->ics); + ics_set_kvm_state(spapr->ics, &local_err); + if (local_err) { + goto fail; + } /* Connect the presenters to the initial VCPUs of the machine */ CPU_FOREACH(cs) { PowerPCCPU *cpu = POWERPC_CPU(cs); - icp_set_kvm_state(spapr_cpu_state(cpu)->icp); + icp_set_kvm_state(spapr_cpu_state(cpu)->icp, &local_err); + if (local_err) { + goto fail; + } } return 0; diff --git a/include/hw/ppc/xics.h b/include/hw/ppc/xics.h index eb65ad7e43..1eb7b5cd68 100644 --- a/include/hw/ppc/xics.h +++ b/include/hw/ppc/xics.h @@ -190,13 +190,13 @@ Object *icp_create(Object *cpu, const char *type, XICSFabric *xi, /* KVM */ void icp_get_kvm_state(ICPState *icp); -int icp_set_kvm_state(ICPState *icp); +int icp_set_kvm_state(ICPState *icp, Error **errp); void icp_synchronize_state(ICPState *icp); void icp_kvm_realize(DeviceState *dev, Error **errp); void ics_get_kvm_state(ICSState *ics); -int ics_set_kvm_state_one(ICSState *ics, int srcno); -int ics_set_kvm_state(ICSState *ics); +int ics_set_kvm_state_one(ICSState *ics, int srcno, Error **errp); +int ics_set_kvm_state(ICSState *ics, Error **errp); void ics_synchronize_state(ICSState *ics); void ics_kvm_set_irq(ICSState *ics, int srcno, int val);