On 27.07.2020 11:37, Durrant, Paul wrote:
From: Andrew Cooper
Sent: 24 July 2020 19:24
On 24/07/2020 17:46, Paul Durrant wrote:
--- a/xen/drivers/passthrough/x86/iommu.c
+++ b/xen/drivers/passthrough/x86/iommu.c
@@ -140,11 +140,19 @@ int arch_iommu_domain_init(struct domain *d)
> -Original Message-
> From: Andrew Cooper
> Sent: 24 July 2020 19:24
> To: Paul Durrant ; xen-devel@lists.xenproject.org
> Cc: Durrant, Paul ; Jan Beulich ;
> Kevin Tian
> ; Wei Liu ; Roger Pau Monné
>
> Subject: RE: [EXTERNAL] [PATCH 2/6] x86/iommu: add common page-table allocator
>
On 24.07.2020 20:24, Andrew Cooper wrote:
> On 24/07/2020 17:46, Paul Durrant wrote:
>> --- a/xen/drivers/passthrough/x86/iommu.c
>> +++ b/xen/drivers/passthrough/x86/iommu.c
>> @@ -140,11 +140,19 @@ int arch_iommu_domain_init(struct domain *d)
>>
>> spin_lock_init(>arch.mapping_lock);
>>
On 24/07/2020 17:46, Paul Durrant wrote:
> From: Paul Durrant
>
> Instead of having separate page table allocation functions in VT-d and AMD
> IOMMU code, use a common allocation function in the general x86 code.
> Also, rather than walking the page tables and using a tasklet to free them
>
