> From: Andrew Cooper [mailto:andrew.coop...@citrix.com]
> Sent: Saturday, December 1, 2018 1:07 AM
>
> For both VT-x and SVM, the RDTSCP intercept will trigger if the pipeline
> supports the instruction, but the guest may have not have rdtscp in its
> featureset. Bring the vmexit handlers in
> -Original Message-
> From: Andrew Cooper
> Sent: 03 December 2018 11:14
> To: Paul Durrant ; Xen-devel de...@lists.xen.org>
> Cc: Jan Beulich ; Wei Liu ; Roger
> Pau Monne ; Jun Nakajima ;
> Kevin Tian ; Boris Ostrovsky
> ; Suravee Suthikulpanit
> ; Brian Woods ;
> Juergen Gross
>
On 03/12/2018 09:17, Paul Durrant wrote:
>> diff --git a/xen/arch/x86/hvm/vmx/vmx.c b/xen/arch/x86/hvm/vmx/vmx.c
>> index 365eeb2..a9f9b9b 100644
>> --- a/xen/arch/x86/hvm/vmx/vmx.c
>> +++ b/xen/arch/x86/hvm/vmx/vmx.c
>> @@ -3589,6 +3589,7 @@ void vmx_vmexit_handler(struct cpu_user_regs *regs)
>>
>>> On 30.11.18 at 18:07, wrote:
> For both VT-x and SVM, the RDTSCP intercept will trigger if the pipeline
> supports the instruction, but the guest may have not have rdtscp in its
> featureset. Bring the vmexit handlers in line with the main emulator
> behaviour by optionally handing back #UD.
> -Original Message-
> From: Andrew Cooper [mailto:andrew.coop...@citrix.com]
> Sent: 30 November 2018 17:07
> To: Xen-devel
> Cc: Andrew Cooper ; Jan Beulich
> ; Wei Liu ; Roger Pau Monne
> ; Paul Durrant ; Jun
> Nakajima ; Kevin Tian ;
> Boris Ostrovsky ; Suravee Suthikulpanit
> ; Brian
On Fri, Nov 30, 2018 at 05:07:20PM +, Andy Cooper wrote:
> For both VT-x and SVM, the RDTSCP intercept will trigger if the pipeline
> supports the instruction, but the guest may have not have rdtscp in its
> featureset. Bring the vmexit handlers in line with the main emulator
> behaviour by
For both VT-x and SVM, the RDTSCP intercept will trigger if the pipeline
supports the instruction, but the guest may have not have rdtscp in its
featureset. Bring the vmexit handlers in line with the main emulator
behaviour by optionally handing back #UD.
Next on the AMD side, if RDTSCP actually
