> -Original Message-
> From: Julien Grall
> Sent: 27 November 2019 19:42
> To: Durrant, Paul ; xen-devel@lists.xenproject.org
> Cc: Jan Beulich ; Andrew Cooper
> ; Wei Liu ; Roger Pau Monné
> ; Jun Nakajima ; Kevin Tian
>
> Subject: Re: [PATCH v2] xen/x86: vpmu: Unmap per-vCPU PMU page
Hi Paul,
On 27/11/2019 12:00, Paul Durrant wrote:
From: Julien Grall
A guest will setup a shared page with the hypervisor for each vCPU via
XENPMU_init. The page will then get mapped in the hypervisor and only
released when XENPMU_finish is called.
This means that if the guest fails to
> -Original Message-
> From: Boris Ostrovsky
> Sent: 27 November 2019 16:32
> To: Jan Beulich ; Durrant, Paul
> Cc: Grall, Julien ; Andrew Cooper
> ; Roger Pau Monné ; Jun
> Nakajima ; Kevin Tian ; Wei
> Liu ; xen-devel@lists.xenproject.org
> Subject: Re: [PATCH v2] xen/x86: vpmu: Unmap
On 11/27/19 10:44 AM, Jan Beulich wrote:
> On 27.11.2019 13:00, Paul Durrant wrote:
>> --- a/xen/arch/x86/cpu/vpmu.c
>> +++ b/xen/arch/x86/cpu/vpmu.c
>> @@ -479,6 +479,8 @@ static int vpmu_arch_initialise(struct vcpu *v)
>>
>> if ( ret )
>> printk(XENLOG_G_WARNING "VPMU:
On 27.11.2019 13:00, Paul Durrant wrote:
> --- a/xen/arch/x86/cpu/vpmu.c
> +++ b/xen/arch/x86/cpu/vpmu.c
> @@ -479,6 +479,8 @@ static int vpmu_arch_initialise(struct vcpu *v)
>
> if ( ret )
> printk(XENLOG_G_WARNING "VPMU: Initialization failed for %pv\n", v);
> +else
> +
