diff options
| author | Peter Xu <peterx@redhat.com> | 2016-09-23 13:02:28 +0800 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2016-09-27 11:57:28 +0200 |
| commit | a3276f786c84d3410be5bc3a4b3e5036745e5a90 (patch) | |
| tree | adfb07caa9b92dc060d148aa3667455c50dc3b72 /hw | |
| parent | 5bf3d319030b1e95116ba49b31339f2bdd1d3b2a (diff) | |
| download | qemu-a3276f786c84d3410be5bc3a4b3e5036745e5a90.zip | |
intel_iommu, amd_iommu: allow UNMAP notifiers
x86 vIOMMUs still lack of a complete IOMMU notifier mechanism.
Before that is achieved, let's open a door for vhost DMAR support,
which only requires cache invalidations (UNMAP operations).
Meanwhile, convert hw_error() to error_report() and exit(1), to make
the error messages cleaner and obvious (no CPU registers will be dumped).
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <1474606948-14391-4-git-send-email-peterx@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/i386/amd_iommu.c | 10 | ||||
| -rw-r--r-- | hw/i386/intel_iommu.c | 12 |
2 files changed, 15 insertions, 7 deletions
diff --git a/hw/i386/amd_iommu.c b/hw/i386/amd_iommu.c index a868539fb0..023de526f6 100644 --- a/hw/i386/amd_iommu.c +++ b/hw/i386/amd_iommu.c @@ -21,6 +21,7 @@ */ #include "qemu/osdep.h" #include "hw/i386/amd_iommu.h" +#include "qemu/error-report.h" #include "trace.h" /* used AMD-Vi MMIO registers */ @@ -1072,9 +1073,12 @@ static void amdvi_iommu_notify_flag_changed(MemoryRegion *iommu, { AMDVIAddressSpace *as = container_of(iommu, AMDVIAddressSpace, iommu); - hw_error("device %02x.%02x.%x requires iommu notifier which is not " - "currently supported", as->bus_num, PCI_SLOT(as->devfn), - PCI_FUNC(as->devfn)); + if (new & IOMMU_NOTIFIER_MAP) { + error_report("device %02x.%02x.%x requires iommu notifier which is not " + "currently supported", as->bus_num, PCI_SLOT(as->devfn), + PCI_FUNC(as->devfn)); + exit(1); + } } static void amdvi_init(AMDVIState *s) diff --git a/hw/i386/intel_iommu.c b/hw/i386/intel_iommu.c index b6cc38c73d..9f4e64af1a 100644 --- a/hw/i386/intel_iommu.c +++ b/hw/i386/intel_iommu.c @@ -1980,10 +1980,14 @@ static void vtd_iommu_notify_flag_changed(MemoryRegion *iommu, { VTDAddressSpace *vtd_as = container_of(iommu, VTDAddressSpace, iommu); - hw_error("Device at bus %s addr %02x.%d requires iommu notifier which " - "is currently not supported by intel-iommu emulation", - vtd_as->bus->qbus.name, PCI_SLOT(vtd_as->devfn), - PCI_FUNC(vtd_as->devfn)); + if (new & IOMMU_NOTIFIER_MAP) { + error_report("Device at bus %s addr %02x.%d requires iommu " + "notifier which is currently not supported by " + "intel-iommu emulation", + vtd_as->bus->qbus.name, PCI_SLOT(vtd_as->devfn), + PCI_FUNC(vtd_as->devfn)); + exit(1); + } } static const VMStateDescription vtd_vmstate = { |