Re: [PATCH v6 13/13] s390: Recognize confidential-guest-support option

2021-01-13 Thread David Gibson
On Wed, Jan 13, 2021 at 07:57:41AM +0100, Christian Borntraeger wrote: > > > On 13.01.21 01:57, David Gibson wrote: > > On Tue, Jan 12, 2021 at 12:36:07PM +0100, Cornelia Huck wrote: > > 65;6201;1c> On Tue, 12 Jan 2021 09:15:26 +0100 > >> Christian Borntraeger wrote: > >> > >>> On 12.01.21

Re: [PATCH v6 13/13] s390: Recognize confidential-guest-support option

2021-01-12 Thread Christian Borntraeger
On 13.01.21 01:57, David Gibson wrote: > On Tue, Jan 12, 2021 at 12:36:07PM +0100, Cornelia Huck wrote: > 65;6201;1c> On Tue, 12 Jan 2021 09:15:26 +0100 >> Christian Borntraeger wrote: >> >>> On 12.01.21 05:45, David Gibson wrote: At least some s390 cpu models support "Protected

Re: [PATCH v6 13/13] s390: Recognize confidential-guest-support option

2021-01-12 Thread David Gibson
On Tue, Jan 12, 2021 at 12:36:07PM +0100, Cornelia Huck wrote: 65;6201;1c> On Tue, 12 Jan 2021 09:15:26 +0100 > Christian Borntraeger wrote: > > > On 12.01.21 05:45, David Gibson wrote: > > > At least some s390 cpu models support "Protected Virtualization" (PV), > > > a mechanism to protect

Re: [PATCH v6 13/13] s390: Recognize confidential-guest-support option

2021-01-12 Thread Daniel P . Berrangé
On Tue, Jan 12, 2021 at 12:36:07PM +0100, Cornelia Huck wrote: > On Tue, 12 Jan 2021 09:15:26 +0100 > Christian Borntraeger wrote: > > > On 12.01.21 05:45, David Gibson wrote: > > > At least some s390 cpu models support "Protected Virtualization" (PV), > > > a mechanism to protect guests from

Re: [PATCH v6 13/13] s390: Recognize confidential-guest-support option

2021-01-12 Thread Christian Borntraeger
On 12.01.21 12:36, Cornelia Huck wrote: > On Tue, 12 Jan 2021 09:15:26 +0100 > Christian Borntraeger wrote: > >> On 12.01.21 05:45, David Gibson wrote: >>> At least some s390 cpu models support "Protected Virtualization" (PV), >>> a mechanism to protect guests from eavesdropping by a

Re: [PATCH v6 13/13] s390: Recognize confidential-guest-support option

2021-01-12 Thread Cornelia Huck
On Tue, 12 Jan 2021 09:15:26 +0100 Christian Borntraeger wrote: > On 12.01.21 05:45, 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: [PATCH v6 13/13] s390: Recognize confidential-guest-support option

2021-01-12 Thread Daniel P . Berrangé
On Tue, Jan 12, 2021 at 03:45:08PM +1100, 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

Re: [PATCH v6 13/13] s390: Recognize confidential-guest-support option

2021-01-12 Thread Christian Borntraeger
On 12.01.21 05:45, 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

[PATCH v6 13/13] s390: Recognize confidential-guest-support option

2021-01-11 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 by the "confidential-guest-support" machine