Re: [for-5.2 v4 10/10] s390: Recognize host-trust-limitation option

2020-09-11 Thread Halil Pasic
On Fri, 11 Sep 2020 10:07:18 +1000 David Gibson wrote: > On Thu, Sep 10, 2020 at 08:29:24PM +0200, Halil Pasic wrote: > > On Thu, 10 Sep 2020 13:36:09 +0200 > > Cornelia Huck wrote: > > > > > On Mon, 7 Sep 2020 17:22:53 +0200 > > > Halil Pasic wrote: > > > > > > > On Fri, 24 Jul 2020

Re: [for-5.2 v4 10/10] s390: Recognize host-trust-limitation option

2020-09-11 Thread Greg Kurz
On Fri, 11 Sep 2020 10:07:18 +1000 David Gibson wrote: > On Thu, Sep 10, 2020 at 08:29:24PM +0200, Halil Pasic wrote: > > On Thu, 10 Sep 2020 13:36:09 +0200 > > Cornelia Huck wrote: > > > > > On Mon, 7 Sep 2020 17:22:53 +0200 > > > Halil Pasic wrote: > > > > > > > On Fri, 24 Jul 2020

Re: [for-5.2 v4 10/10] s390: Recognize host-trust-limitation option

2020-09-10 Thread David Gibson
On Thu, Sep 10, 2020 at 08:29:24PM +0200, Halil Pasic wrote: > On Thu, 10 Sep 2020 13:36:09 +0200 > Cornelia Huck wrote: > > > On Mon, 7 Sep 2020 17:22:53 +0200 > > Halil Pasic wrote: > > > > > On Fri, 24 Jul 2020 12:57:44 +1000 > > > David Gibson wrote: > > > > > > > At least some s390 cpu

Re: [for-5.2 v4 10/10] s390: Recognize host-trust-limitation option

2020-09-10 Thread Halil Pasic
On Thu, 10 Sep 2020 13:36:09 +0200 Cornelia Huck wrote: > On Mon, 7 Sep 2020 17:22:53 +0200 > Halil Pasic wrote: > > > On Fri, 24 Jul 2020 12:57:44 +1000 > > David Gibson wrote: > > > > > At least some s390 cpu models support "Protected Virtualization" (PV), > > > a mechanism to protect

Re: [for-5.2 v4 10/10] s390: Recognize host-trust-limitation option

2020-09-10 Thread Cornelia Huck
On Mon, 7 Sep 2020 17:22:53 +0200 Halil Pasic wrote: > On Fri, 24 Jul 2020 12:57:44 +1000 > David Gibson wrote: > > > At least some s390 cpu models support "Protected Virtualization" (PV), > > a mechanism to protect guests from eavesdropping by a compromised > > hypervisor. > > > > This is

Re: [for-5.2 v4 10/10] s390: Recognize host-trust-limitation option

2020-09-07 Thread Halil Pasic
On Fri, 24 Jul 2020 12:57:44 +1000 David Gibson wrote: > At least some s390 cpu models support "Protected Virtualization" (PV), > a mechanism to protect guests from eavesdropping by a compromised > hypervisor. > > This is similar in function to other mechanisms like AMD's SEV and > POWER's PEF,

Re: [for-5.2 v4 10/10] s390: Recognize host-trust-limitation option

2020-08-06 Thread David Hildenbrand
On 06.08.20 08:14, David Gibson wrote: > On Mon, Jul 27, 2020 at 05:50:40PM +0200, Cornelia Huck wrote: >> On Fri, 24 Jul 2020 12:57:44 +1000 >> David Gibson wrote: >> >>> At least some s390 cpu models support "Protected Virtualization" (PV), >>> a mechanism to protect guests from eavesdropping

Re: [for-5.2 v4 10/10] s390: Recognize host-trust-limitation option

2020-08-06 Thread David Gibson
On Mon, Jul 27, 2020 at 05:50:40PM +0200, Cornelia Huck wrote: > On Fri, 24 Jul 2020 12:57:44 +1000 > David Gibson wrote: > > > At least some s390 cpu models support "Protected Virtualization" (PV), > > a mechanism to protect guests from eavesdropping by a compromised > > hypervisor. > > > >

Re: [for-5.2 v4 10/10] s390: Recognize host-trust-limitation option

2020-08-03 Thread Cornelia Huck
On Mon, 3 Aug 2020 18:14:57 +1000 David Gibson wrote: > On Mon, Aug 03, 2020 at 10:07:42AM +0200, Janosch Frank wrote: > > On 8/3/20 9:54 AM, David Gibson wrote: > > > On Mon, Aug 03, 2020 at 09:49:42AM +0200, Janosch Frank wrote: > > >> On 7/24/20 4:57 AM, David Gibson wrote: > > >>> At

Re: [for-5.2 v4 10/10] s390: Recognize host-trust-limitation option

2020-08-03 Thread David Gibson
On Mon, Aug 03, 2020 at 10:07:42AM +0200, Janosch Frank wrote: > On 8/3/20 9:54 AM, David Gibson wrote: > > On Mon, Aug 03, 2020 at 09:49:42AM +0200, Janosch Frank wrote: > >> On 7/24/20 4:57 AM, David Gibson wrote: > >>> At least some s390 cpu models support "Protected Virtualization" (PV), > >>>

Re: [for-5.2 v4 10/10] s390: Recognize host-trust-limitation option

2020-08-03 Thread Janosch Frank
On 8/3/20 9:54 AM, David Gibson wrote: > On Mon, Aug 03, 2020 at 09:49:42AM +0200, Janosch Frank wrote: >> On 7/24/20 4:57 AM, David Gibson wrote: >>> At least some s390 cpu models support "Protected Virtualization" (PV), >>> a mechanism to protect guests from eavesdropping by a compromised >>>

Re: [for-5.2 v4 10/10] s390: Recognize host-trust-limitation option

2020-08-03 Thread David Gibson
On Mon, Aug 03, 2020 at 09:49:42AM +0200, Janosch Frank wrote: > On 7/24/20 4:57 AM, David Gibson wrote: > > At least some s390 cpu models support "Protected Virtualization" (PV), > > a mechanism to protect guests from eavesdropping by a compromised > > hypervisor. > > > > This is similar in

Re: [for-5.2 v4 10/10] s390: Recognize host-trust-limitation option

2020-08-03 Thread Janosch Frank
On 7/24/20 4:57 AM, David Gibson wrote: > At least some s390 cpu models support "Protected Virtualization" (PV), > a mechanism to protect guests from eavesdropping by a compromised > hypervisor. > > This is similar in function to other mechanisms like AMD's SEV and > POWER's PEF, which are

Re: [for-5.2 v4 10/10] s390: Recognize host-trust-limitation option

2020-08-03 Thread Janosch Frank
On 7/27/20 5:50 PM, Cornelia Huck wrote: > On Fri, 24 Jul 2020 12:57:44 +1000 > David Gibson wrote: > >> At least some s390 cpu models support "Protected Virtualization" (PV), >> a mechanism to protect guests from eavesdropping by a compromised >> hypervisor. >> >> This is similar in function to

Re: [for-5.2 v4 10/10] s390: Recognize host-trust-limitation option

2020-07-27 Thread Cornelia Huck
On Fri, 24 Jul 2020 12:57:44 +1000 David Gibson wrote: > At least some s390 cpu models support "Protected Virtualization" (PV), > a mechanism to protect guests from eavesdropping by a compromised > hypervisor. > > This is similar in function to other mechanisms like AMD's SEV and > POWER's PEF,

[for-5.2 v4 10/10] s390: Recognize host-trust-limitation option

2020-07-23 Thread David Gibson
At least some s390 cpu models support "Protected Virtualization" (PV), a mechanism to protect guests from eavesdropping by a compromised hypervisor. This is similar in function to other mechanisms like AMD's SEV and POWER's PEF, which are controlled bythe "host-trust-limitation" machine option.