diff mbox series

[RFC,4/4] intel_iommu: Remove the caching-mode check during flag change

Message ID 20190812074531.28970-5-peterx@redhat.com
State New
Headers show
Series intel_iommu: Do sanity check of vfio-pci earlier | expand

Commit Message

Peter Xu Aug. 12, 2019, 7:45 a.m. UTC
That's never a good place to stop QEMU process... Since now we have
both the machine done sanity check and also the hotplug handler, we
can safely remove this to avoid that.

Signed-off-by: Peter Xu <peterx@redhat.com>
---
 hw/i386/intel_iommu.c | 4 ----
 1 file changed, 4 deletions(-)

Comments

Eric Auger Sept. 16, 2019, 7:24 a.m. UTC | #1
Hi Peter,

On 8/12/19 9:45 AM, Peter Xu wrote:
> That's never a good place to stop QEMU process... Since now we have
> both the machine done sanity check and also the hotplug handler, we
> can safely remove this to avoid that.
> 
> Signed-off-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>

Thanks

Eric
> ---
>  hw/i386/intel_iommu.c | 4 ----
>  1 file changed, 4 deletions(-)
> 
> diff --git a/hw/i386/intel_iommu.c b/hw/i386/intel_iommu.c
> index 642dd595ed..93b26b633b 100644
> --- a/hw/i386/intel_iommu.c
> +++ b/hw/i386/intel_iommu.c
> @@ -2932,10 +2932,6 @@ static void vtd_iommu_notify_flag_changed(IOMMUMemoryRegion *iommu,
>      VTDAddressSpace *vtd_as = container_of(iommu, VTDAddressSpace, iommu);
>      IntelIOMMUState *s = vtd_as->iommu_state;
>  
> -    if (!s->caching_mode && new & IOMMU_NOTIFIER_MAP) {
> -        vtd_panic_require_caching_mode();
> -    }
> -
>      /* Update per-address-space notifier flags */
>      vtd_as->notifier_flags = new;
>  
>
diff mbox series

Patch

diff --git a/hw/i386/intel_iommu.c b/hw/i386/intel_iommu.c
index 642dd595ed..93b26b633b 100644
--- a/hw/i386/intel_iommu.c
+++ b/hw/i386/intel_iommu.c
@@ -2932,10 +2932,6 @@  static void vtd_iommu_notify_flag_changed(IOMMUMemoryRegion *iommu,
     VTDAddressSpace *vtd_as = container_of(iommu, VTDAddressSpace, iommu);
     IntelIOMMUState *s = vtd_as->iommu_state;
 
-    if (!s->caching_mode && new & IOMMU_NOTIFIER_MAP) {
-        vtd_panic_require_caching_mode();
-    }
-
     /* Update per-address-space notifier flags */
     vtd_as->notifier_flags = new;