On 2015/6/18 18:07, Tim Deegan wrote:
At 14:13 +0800 on 12 Jun (1434118407), Chen, Tiejun wrote:
could you explain why existing guest_physmap_remove_page can't
serve the purpose so you need invent a new identity mapping
specific one? For unmapping suppose it should be common regardless
of whethe
At 14:13 +0800 on 12 Jun (1434118407), Chen, Tiejun wrote:
> > could you explain why existing guest_physmap_remove_page can't
> > serve the purpose so you need invent a new identity mapping
> > specific one? For unmapping suppose it should be common regardless
> > of whether it's identity-mapped or
On 2015/6/17 18:03, Jan Beulich wrote:
On 11.06.15 at 03:15, wrote:
--- a/xen/arch/x86/mm/p2m.c
+++ b/xen/arch/x86/mm/p2m.c
@@ -927,10 +927,16 @@ int set_identity_p2m_entry(struct domain *d, unsigned
long gfn,
}
gfn_unlock(p2m, gfn, 0);
-return ret;
}
+el
>>> On 11.06.15 at 03:15, wrote:
> --- a/xen/arch/x86/mm/p2m.c
> +++ b/xen/arch/x86/mm/p2m.c
> @@ -927,10 +927,16 @@ int set_identity_p2m_entry(struct domain *d, unsigned
> long gfn,
> }
>
> gfn_unlock(p2m, gfn, 0);
> -return ret;
> }
> +else
> +ret =
On 2015/6/12 13:59, Tian, Kevin wrote:
From: Chen, Tiejun
Sent: Friday, June 12, 2015 1:58 PM
On 2015/6/12 10:43, Chen, Tiejun wrote:
On 2015/6/11 22:07, Tim Deegan wrote:
At 17:31 +0800 on 11 Jun (1434043916), Chen, Tiejun wrote:
while ( base_pfn < end_pfn )
{
-int er
> From: Chen, Tiejun
> Sent: Friday, June 12, 2015 1:58 PM
>
> On 2015/6/12 10:43, Chen, Tiejun wrote:
> > On 2015/6/11 22:07, Tim Deegan wrote:
> >> At 17:31 +0800 on 11 Jun (1434043916), Chen, Tiejun wrote:
> >while ( base_pfn < end_pfn )
> >{
> > -int err = i
On 2015/6/12 10:43, Chen, Tiejun wrote:
On 2015/6/11 22:07, Tim Deegan wrote:
At 17:31 +0800 on 11 Jun (1434043916), Chen, Tiejun wrote:
while ( base_pfn < end_pfn )
{
-int err = intel_iommu_map_page(d, base_pfn, base_pfn,
-
IOMMUF_readable|IOMMUF_writable);
+int e
On 2015/6/11 22:07, Tim Deegan wrote:
At 17:31 +0800 on 11 Jun (1434043916), Chen, Tiejun wrote:
while ( base_pfn < end_pfn )
{
-int err = intel_iommu_map_page(d, base_pfn, base_pfn,
- IOMMUF_readable|IOMMUF_writable);
+int err
At 17:31 +0800 on 11 Jun (1434043916), Chen, Tiejun wrote:
> >> while ( base_pfn < end_pfn )
> >> {
> >> -int err = intel_iommu_map_page(d, base_pfn, base_pfn,
> >> - IOMMUF_readable|IOMMUF_writable);
> >> +int err = set_identity_p2m
On 2015/6/11 17:14, Tian, Kevin wrote:
From: Chen, Tiejun
Sent: Thursday, June 11, 2015 9:15 AM
RMRR reserved regions must be setup in the pfn space with an identity
mapping to reported mfn. However existing code has problem to setup
correct mapping when VT-d shares EPT page table, so lead to pr
> From: Chen, Tiejun
> Sent: Thursday, June 11, 2015 9:15 AM
>
> RMRR reserved regions must be setup in the pfn space with an identity
> mapping to reported mfn. However existing code has problem to setup
> correct mapping when VT-d shares EPT page table, so lead to problem
> when assigning device
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