Re: [PATCH v9 15/15] s390x: Add unpack facility feature to GA1

2020-03-18 Thread Janosch Frank
On 3/18/20 10:27 AM, Cornelia Huck wrote: > What about > > /* > * If we have support for protected virtualization, indicate > * the protected virtualization IPL unpack facility. > */ > Sure signature.asc Description: OpenPGP digital signature

Re: [PATCH v9 15/15] s390x: Add unpack facility feature to GA1

2020-03-18 Thread Cornelia Huck
On Wed, 18 Mar 2020 09:44:08 +0100 Janosch Frank wrote: > On 3/17/20 7:06 PM, Cornelia Huck wrote: > > On Wed, 11 Mar 2020 09:21:51 -0400 > > Janosch Frank wrote: > >> diff --git a/target/s390x/kvm.c b/target/s390x/kvm.c > >> index ff6027036ec2f14a..e11e895a3d9038bb 100644 > >> --- a/target/s39

Re: [PATCH v9 15/15] s390x: Add unpack facility feature to GA1

2020-03-18 Thread Janosch Frank
On 3/17/20 7:06 PM, Cornelia Huck wrote: > On Wed, 11 Mar 2020 09:21:51 -0400 > Janosch Frank wrote: > >> From: Christian Borntraeger >> >> The unpack facility is an indication that diagnose 308 subcodes 8-10 >> are available to the guest. That means, that the guest can put itself >> into protec

Re: [PATCH v9 15/15] s390x: Add unpack facility feature to GA1

2020-03-17 Thread Cornelia Huck
On Wed, 11 Mar 2020 09:21:51 -0400 Janosch Frank wrote: > From: Christian Borntraeger > > The unpack facility is an indication that diagnose 308 subcodes 8-10 > are available to the guest. That means, that the guest can put itself > into protected mode. > > Once it is in protected mode, the ha

Re: [PATCH v9 15/15] s390x: Add unpack facility feature to GA1

2020-03-13 Thread Claudio Imbrenda
On Wed, 11 Mar 2020 09:21:51 -0400 Janosch Frank wrote: > From: Christian Borntraeger > > The unpack facility is an indication that diagnose 308 subcodes 8-10 > are available to the guest. That means, that the guest can put itself > into protected mode. > > Once it is in protected mode, the ha

[PATCH v9 15/15] s390x: Add unpack facility feature to GA1

2020-03-11 Thread Janosch Frank
From: Christian Borntraeger The unpack facility is an indication that diagnose 308 subcodes 8-10 are available to the guest. That means, that the guest can put itself into protected mode. Once it is in protected mode, the hardware stops any attempt of VM introspection by the hypervisor. Some fe