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| author | Peter Xu <peterx@redhat.com> | 2017-05-19 11:19:40 +0800 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2017-05-25 21:25:27 +0300 |
| commit | bf55b7afce53718ef96f4e6616da62c0ccac37dd (patch) | |
| tree | ac502b7d8fa21ab67434cd05c9a1390c6c2ddea6 /hw/i386/intel_iommu.c | |
| parent | 9964e96dc9999cf7f7c936ee854a795415d19b60 (diff) | |
| download | focaccia-qemu-bf55b7afce53718ef96f4e6616da62c0ccac37dd.tar.gz focaccia-qemu-bf55b7afce53718ef96f4e6616da62c0ccac37dd.zip | |
memory: tune last param of iommu_ops.translate()
This patch converts the old "is_write" bool into IOMMUAccessFlags. The difference is that "is_write" can only express either read/write, but sometimes what we really want is "none" here (neither read nor write). Replay is an good example - during replay, we should not check any RW permission bits since thats not an actual IO at all. CC: Paolo Bonzini <pbonzini@redhat.com> CC: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: David Gibson <david@gibson.dropbear.id.au> Acked-by: David Gibson <david@gibson.dropbear.id.au> Acked-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Peter Xu <peterx@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Jason Wang <jasowang@redhat.com>
Diffstat (limited to 'hw/i386/intel_iommu.c')
| -rw-r--r-- | hw/i386/intel_iommu.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/hw/i386/intel_iommu.c b/hw/i386/intel_iommu.c index 9ba2162cd9..4a51df8561 100644 --- a/hw/i386/intel_iommu.c +++ b/hw/i386/intel_iommu.c @@ -2221,7 +2221,7 @@ static void vtd_mem_write(void *opaque, hwaddr addr, } static IOMMUTLBEntry vtd_iommu_translate(MemoryRegion *iommu, hwaddr addr, - bool is_write) + IOMMUAccessFlags flag) { VTDAddressSpace *vtd_as = container_of(iommu, VTDAddressSpace, iommu); IntelIOMMUState *s = vtd_as->iommu_state; @@ -2243,7 +2243,7 @@ static IOMMUTLBEntry vtd_iommu_translate(MemoryRegion *iommu, hwaddr addr, } vtd_do_iommu_translate(vtd_as, vtd_as->bus, vtd_as->devfn, addr, - is_write, &ret); + flag & IOMMU_WO, &ret); VTD_DPRINTF(MMU, "bus %"PRIu8 " slot %"PRIu8 " func %"PRIu8 " devfn %"PRIu8 " iova 0x%"PRIx64 " hpa 0x%"PRIx64, pci_bus_num(vtd_as->bus), |