[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [PATCH v5 4/7] intel_iommu: redo configuraton check in real
From: |
Radim Krčmář |
Subject: |
[Qemu-devel] [PATCH v5 4/7] intel_iommu: redo configuraton check in realize |
Date: |
Mon, 10 Oct 2016 17:28:45 +0200 |
* there no point in configuring the device if realization is going to
fail, so move the check to the beginning,
* create a separate function for the check,
* use error_setg() instead error_report().
Reviewed-by: Igor Mammedov <address@hidden>
Reviewed-by: Peter Xu <address@hidden>
Signed-off-by: Radim Krčmář <address@hidden>
---
v5: r-b Peter
v4: r-b Igor
v3:
* use error_setg [Paolo]
* create a new function [Peter]
---
hw/i386/intel_iommu.c | 26 ++++++++++++++++++--------
1 file changed, 18 insertions(+), 8 deletions(-)
diff --git a/hw/i386/intel_iommu.c b/hw/i386/intel_iommu.c
index c39b62b898d8..5b06b4091f36 100644
--- a/hw/i386/intel_iommu.c
+++ b/hw/i386/intel_iommu.c
@@ -21,6 +21,7 @@
#include "qemu/osdep.h"
#include "qemu/error-report.h"
+#include "qapi/error.h"
#include "hw/sysbus.h"
#include "exec/address-spaces.h"
#include "intel_iommu_internal.h"
@@ -2448,6 +2449,18 @@ static AddressSpace *vtd_host_dma_iommu(PCIBus *bus,
void *opaque, int devfn)
return &vtd_as->as;
}
+static bool vtd_check_config(X86IOMMUState *x86_iommu, Error **errp)
+{
+ /* Currently Intel IOMMU IR only support "kernel-irqchip={off|split}" */
+ if (x86_iommu->intr_supported && kvm_irqchip_in_kernel() &&
+ !kvm_irqchip_is_split()) {
+ error_setg(errp, "Intel Interrupt Remapping cannot work with "
+ "kernel-irqchip=on, please use 'split|off'.");
+ return false;
+ }
+ return true;
+}
+
static void vtd_realize(DeviceState *dev, Error **errp)
{
PCMachineState *pcms = PC_MACHINE(qdev_get_machine());
@@ -2457,6 +2470,11 @@ static void vtd_realize(DeviceState *dev, Error **errp)
VTD_DPRINTF(GENERAL, "");
x86_iommu->type = TYPE_INTEL;
+
+ if (!vtd_check_config(x86_iommu, errp)) {
+ return;
+ }
+
memset(s->vtd_as_by_bus_num, 0, sizeof(s->vtd_as_by_bus_num));
memory_region_init_io(&s->csrmem, OBJECT(s), &vtd_mem_ops, s,
"intel_iommu", DMAR_REG_SIZE);
@@ -2471,14 +2489,6 @@ static void vtd_realize(DeviceState *dev, Error **errp)
pci_setup_iommu(bus, vtd_host_dma_iommu, dev);
/* Pseudo address space under root PCI bus. */
pcms->ioapic_as = vtd_host_dma_iommu(bus, s, Q35_PSEUDO_DEVFN_IOAPIC);
-
- /* Currently Intel IOMMU IR only support "kernel-irqchip={off|split}" */
- if (x86_iommu->intr_supported && kvm_irqchip_in_kernel() &&
- !kvm_irqchip_is_split()) {
- error_report("Intel Interrupt Remapping cannot work with "
- "kernel-irqchip=on, please use 'split|off'.");
- exit(1);
- }
}
static void vtd_class_init(ObjectClass *klass, void *data)
--
2.10.1
- [Qemu-devel] [PATCH v5 0/7] intel_iommu: fix EIM, Radim Krčmář, 2016/10/10
- [Qemu-devel] [PATCH v5 1/7] apic: add global apic_get_class(), Radim Krčmář, 2016/10/10
- [Qemu-devel] [PATCH v5 2/7] apic: add send_msi() to APICCommonClass, Radim Krčmář, 2016/10/10
- [Qemu-devel] [PATCH v5 3/7] intel_iommu: pass whole remapped addresses to apic, Radim Krčmář, 2016/10/10
- [Qemu-devel] [PATCH v5 4/7] intel_iommu: redo configuraton check in realize,
Radim Krčmář <=
- [Qemu-devel] [PATCH v5 5/7] intel_iommu: add OnOffAuto intr_eim as "eim" property, Radim Krčmář, 2016/10/10
- [Qemu-devel] [PATCH v5 6/7] intel_iommu: reject broken EIM, Radim Krčmář, 2016/10/10
- [Qemu-devel] [PATCH v5 7/7] target-i386/kvm: cache the return value of kvm_enable_x2apic(), Radim Krčmář, 2016/10/10
- Re: [Qemu-devel] [PATCH v5 0/7] intel_iommu: fix EIM, Eduardo Habkost, 2016/10/14