Hi James,
On 2018/7/11 0:49, James Morse wrote:
> The get/set events helpers to do some work to check reserved
> and padding fields are zero. This is useful on 32bit too.
>
> Move this code into virt/kvm/arm/arm.c, and give the arch
> code some underscores.
>
> This is temporarily hidden behind
On 11/07/18 07:48, gengdongjiu wrote:
> Hi, James,
>
> [...]
>> diff --git a/Documentation/virtual/kvm/api.txt
>> b/Documentation/virtual/kvm/api.txt
>> index d10944e619d3..e3940f8715a5 100644
>> --- a/Documentation/virtual/kvm/api.txt
>> +++ b/Documentation/virtual/kvm/api.txt
>> @@ -835,11 +835
On 10/07/18 18:03, Dave Martin wrote:
On Tue, Jul 10, 2018 at 05:38:39PM +0100, Suzuki K Poulose wrote:
On 09/07/18 14:37, Dave Martin wrote:
On Mon, Jul 09, 2018 at 01:29:42PM +0100, Marc Zyngier wrote:
On 09/07/18 12:23, Dave Martin wrote:
[...]
Wedging arguments into a few bits in the t
On Wed, Jul 11, 2018 at 10:05:50AM +0100, Suzuki K Poulose wrote:
> On 10/07/18 18:03, Dave Martin wrote:
> >On Tue, Jul 10, 2018 at 05:38:39PM +0100, Suzuki K Poulose wrote:
> >>On 09/07/18 14:37, Dave Martin wrote:
> >>>On Mon, Jul 09, 2018 at 01:29:42PM +0100, Marc Zyngier wrote:
> On 09/07/
> >> diff --git a/Documentation/virtual/kvm/api.txt
> >> b/Documentation/virtual/kvm/api.txt
> >> index d10944e619d3..e3940f8715a5 100644
> >> --- a/Documentation/virtual/kvm/api.txt
> >> +++ b/Documentation/virtual/kvm/api.txt
> >> @@ -835,11 +835,13 @@ struct kvm_clock_data e
> >>
> >> Capabilit
On 09/07/18 15:41, Punit Agrawal wrote:
The code for operations such as marking the pfn as dirty, and
dcache/icache maintenance during stage 2 fault handling is duplicated
between normal pages and PMD hugepages.
Instead of creating another copy of the operations when we introduce
PUD hugepages,
On 09/07/18 15:41, Punit Agrawal wrote:
Introduce helpers to abstract architectural handling of the conversion
of pfn to page table entries and marking a PMD page table entry as a
block entry.
The helpers are introduced in preparation for supporting PUD hugepages
at stage 2 - which are supported
On 09/07/18 15:41, Punit Agrawal wrote:
In preparation for creating PUD hugepages at stage 2, add support for
write protecting PUD hugepages when they are encountered. Write
protecting guest tables is used to track dirty pages when migrating
VMs.
Also, provide trivial implementations of required
On 09/07/18 15:41, Punit Agrawal wrote:
In preparation for creating larger hugepages at Stage 2, extend the
access fault handling at Stage 2 to support PUD hugepages when
encountered.
Provide trivial helpers for arm32 to allow sharing of code.
Signed-off-by: Punit Agrawal
Cc: Christoffer Dall
On 09/07/18 15:41, Punit Agrawal wrote:
In preparation for creating larger hugepages at Stage 2, add support
to the age handling notifiers for PUD hugepages when encountered.
Provide trivial helpers for arm32 to allow sharing code.
Signed-off-by: Punit Agrawal
Cc: Christoffer Dall
Cc: Marc Zy
On 09/07/18 15:41, Punit Agrawal wrote:
KVM only supports PMD hugepages at stage 2. Now that the various page
handling routines are updated, extend the stage 2 fault handling to
map in PUD hugepages.
Addition of PUD hugepage support enables additional page sizes (e.g.,
1G with 4K granule) which
On 09/07/18 15:41, Punit Agrawal wrote:
In preparation for creating PUD hugepages at stage 2, add support for
detecting execute permissions on PUD page table entries. Faults due to
lack of execute permissions on page table entries is used to perform
i-cache invalidation on first execute.
Provide
Suzuki K Poulose writes:
> On 09/07/18 15:41, Punit Agrawal wrote:
>> In preparation for creating PUD hugepages at stage 2, add support for
>> detecting execute permissions on PUD page table entries. Faults due to
>> lack of execute permissions on page table entries is used to perform
>> i-cache
Suzuki K Poulose writes:
> On 09/07/18 15:41, Punit Agrawal wrote:
>> KVM only supports PMD hugepages at stage 2. Now that the various page
>> handling routines are updated, extend the stage 2 fault handling to
>> map in PUD hugepages.
>>
>> Addition of PUD hugepage support enables additional pag
Mark Rutland writes:
> These patches inhibit spectre-v1-write gadgets found in arch/arm64, using the
> same mitigation applied to existing spectre-v1-read gadgets.
>
> This issue is also known as CVE-2018-3693, or "bounds check bypass store".
> More details can be found in the Arm Cache Speculati
Suzuki K Poulose writes:
> On 09/07/18 15:41, Punit Agrawal wrote:
>> Introduce helpers to abstract architectural handling of the conversion
>> of pfn to page table entries and marking a PMD page table entry as a
>> block entry.
>>
>> The helpers are introduced in preparation for supporting PUD h
On 11/07/18 17:05, Punit Agrawal wrote:
Suzuki K Poulose writes:
On 09/07/18 15:41, Punit Agrawal wrote:
KVM only supports PMD hugepages at stage 2. Now that the various page
handling routines are updated, extend the stage 2 fault handling to
map in PUD hugepages.
Addition of PUD hugepage su
Suzuki K Poulose writes:
> On 11/07/18 17:05, Punit Agrawal wrote:
>> Suzuki K Poulose writes:
>>
>>> On 09/07/18 15:41, Punit Agrawal wrote:
KVM only supports PMD hugepages at stage 2. Now that the various page
handling routines are updated, extend the stage 2 fault handling to
m
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