On 13/11/2018 10:27, Paul Durrant wrote:
>> -Original Message-
>> From: Jan Beulich [mailto:jbeul...@suse.com]
>> Sent: 13 November 2018 10:14
>> To: xen-devel
>> Cc: Andrew Cooper ; Paul Durrant
>> ; Wei Liu
>> Subject: [PATCH 1/3] x86/HVM: __hvm_copy() should not write to
>>
> -Original Message-
> From: Jan Beulich [mailto:jbeul...@suse.com]
> Sent: 13 November 2018 11:15
> To: Andrew Cooper ; Paul Durrant
>
> Cc: Wei Liu ; xen-devel de...@lists.xenproject.org>
> Subject: Re: [PATCH 1/3] x86/HVM: __hvm_copy() should not write to
> p2m_ioreq_server pages
>
>
>>> On 13.11.18 at 12:08, wrote:
> On 13/11/2018 10:53, Paul Durrant wrote:
>>> -Original Message-
>>> From: Andrew Cooper
>>> Sent: 13 November 2018 10:47
>>> To: Jan Beulich ; xen-devel >> de...@lists.xenproject.org>
>>> Cc: Paul Durrant ; Wei Liu
>>> Subject: Re: [PATCH 1/3] x86/HVM:
On 13/11/2018 10:53, Paul Durrant wrote:
>> -Original Message-
>> From: Andrew Cooper
>> Sent: 13 November 2018 10:47
>> To: Jan Beulich ; xen-devel > de...@lists.xenproject.org>
>> Cc: Paul Durrant ; Wei Liu
>> Subject: Re: [PATCH 1/3] x86/HVM: __hvm_copy() should not write to
>>
> -Original Message-
> From: Andrew Cooper
> Sent: 13 November 2018 10:47
> To: Jan Beulich ; xen-devel de...@lists.xenproject.org>
> Cc: Paul Durrant ; Wei Liu
> Subject: Re: [PATCH 1/3] x86/HVM: __hvm_copy() should not write to
> p2m_ioreq_server pages
>
> On 13/11/18 10:13, Jan
>>> On 13.11.18 at 11:47, wrote:
> On 13/11/18 10:13, Jan Beulich wrote:
>> Commit 3bdec530a5 ("x86/HVM: split page straddling emulated accesses in
>> more cases") introduced a hvm_copy_to_guest_linear() attempt before
>> falling back to hvmemul_linear_mmio_write(). This is wrong for the
>>
On 13/11/18 10:13, Jan Beulich wrote:
> Commit 3bdec530a5 ("x86/HVM: split page straddling emulated accesses in
> more cases") introduced a hvm_copy_to_guest_linear() attempt before
> falling back to hvmemul_linear_mmio_write(). This is wrong for the
> p2m_ioreq_server special case. That change
> -Original Message-
> From: Jan Beulich [mailto:jbeul...@suse.com]
> Sent: 13 November 2018 10:14
> To: xen-devel
> Cc: Andrew Cooper ; Paul Durrant
> ; Wei Liu
> Subject: [PATCH 1/3] x86/HVM: __hvm_copy() should not write to
> p2m_ioreq_server pages
>
> Commit 3bdec530a5 ("x86/HVM:
Commit 3bdec530a5 ("x86/HVM: split page straddling emulated accesses in
more cases") introduced a hvm_copy_to_guest_linear() attempt before
falling back to hvmemul_linear_mmio_write(). This is wrong for the
p2m_ioreq_server special case. That change widened a pre-existing issue
though: Other
