On Fri, Sep 28, 2018 at 12:47:08PM +0200, Auger Eric wrote:
> Hi Peter,
Hi, Eric,
[...]
> > +static void vtd_address_space_refresh_all(IntelIOMMUState *s)
> > +{
> > +vtd_address_space_unmap_all(s);
> What about internal context and iotlb caches? Shouldn't they be also
> invalidated at the s
Hi Peter,
On 9/7/18 4:46 AM, Peter Xu wrote:
> QEMU is not handling the global DMAR switch well, especially when from
> "on" to "off".
>
> Let's first take the example of system reset.
>
> Assuming that a guest has IOMMU enabled. When it reboots, we will drop
> all the existing DMAR mappings to
On Fri, Sep 07, 2018 at 10:46:40AM +0800, Peter Xu wrote:
> QEMU is not handling the global DMAR switch well, especially when from
> "on" to "off".
>
> Let's first take the example of system reset.
>
> Assuming that a guest has IOMMU enabled. When it reboots, we will drop
> all the existing DMAR
QEMU is not handling the global DMAR switch well, especially when from
"on" to "off".
Let's first take the example of system reset.
Assuming that a guest has IOMMU enabled. When it reboots, we will drop
all the existing DMAR mappings to handle the system reset, however we'll
still keep the exist
