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From: Christian Borntraeger <borntraeger@de.ibm.com>
To: Thomas Huth <thuth@redhat.com>,
	Janosch Frank <frankja@linux.vnet.ibm.com>
Cc: KVM <kvm@vger.kernel.org>, Cornelia Huck <cohuck@redhat.com>,
	David Hildenbrand <david@redhat.com>,
	Ulrich Weigand <Ulrich.Weigand@de.ibm.com>,
	Claudio Imbrenda <imbrenda@linux.ibm.com>,
	Andrea Arcangeli <aarcange@redhat.com>,
	linux-s390 <linux-s390@vger.kernel.org>,
	Michael Mueller <mimu@linux.ibm.com>,
	Vasily Gorbik <gor@linux.ibm.com>,
	Janosch Frank <frankja@linux.ibm.com>
Subject: Re: [PATCH 09/35] KVM: s390: protvirt: Add KVM api documentation
Date: Mon, 10 Feb 2020 13:26:35 +0100	[thread overview]
Message-ID: <aae6434d-de87-503d-de51-4cee52d375b9@de.ibm.com> (raw)
In-Reply-To: <f7089ad6-65d2-35fc-16fb-b94e968fd4e8@redhat.com>



On 08.02.20 15:57, Thomas Huth wrote:
> On 07/02/2020 12.39, Christian Borntraeger wrote:
>> From: Janosch Frank <frankja@linux.ibm.com>
>>
>> Add documentation for KVM_CAP_S390_PROTECTED capability and the
>> KVM_S390_PV_COMMAND and KVM_S390_PV_COMMAND_VCPU ioctls.
>>
>> Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
>> [borntraeger@de.ibm.com: patch merging, splitting, fixing]
>> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
>> ---
>>  Documentation/virt/kvm/api.txt | 61 ++++++++++++++++++++++++++++++++++
>>  1 file changed, 61 insertions(+)
>>
>> diff --git a/Documentation/virt/kvm/api.txt b/Documentation/virt/kvm/api.txt
>> index 73448764f544..4874d42286ca 100644
>> --- a/Documentation/virt/kvm/api.txt
>> +++ b/Documentation/virt/kvm/api.txt
>> @@ -4204,6 +4204,60 @@ the clear cpu reset definition in the POP. However, the cpu is not put
>>  into ESA mode. This reset is a superset of the initial reset.
>>  
>>  
>> +4.125 KVM_S390_PV_COMMAND
>> +
>> +Capability: KVM_CAP_S390_PROTECTED
>> +Architectures: s390
>> +Type: vm ioctl
>> +Parameters: struct kvm_pv_cmd
>> +Returns: 0 on success, < 0 on error
>> +
>> +struct kvm_pv_cmd {
>> +	__u32	cmd;	/* Command to be executed */
>> +	__u16	rc;	/* Ultravisor return code */
>> +	__u16	rrc;	/* Ultravisor return reason code */
>> +	__u64	data;	/* Data or address */
> 
> That remindes me ... do we maybe want a "reserved" field in here for
> future extensions? Or is the "data" pointer enough?


This is now:

struct kvm_pv_cmd {

        __u32 cmd;      /* Command to be executed */
        __u32 flags;    /* flags for future extensions. Must be 0 for now */
        __u64 data;     /* Data or address */
        __u64 reserved[2];
};

  reply	other threads:[~2020-02-10 12:26 UTC|newest]

Thread overview: 147+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-07 11:39 [PATCH 00/35] KVM: s390: Add support for protected VMs Christian Borntraeger
2020-02-07 11:39 ` [PATCH 01/35] mm:gup/writeback: add callbacks for inaccessible pages Christian Borntraeger
2020-02-10 17:27   ` Christian Borntraeger
2020-02-10 17:27     ` Christian Borntraeger
2020-02-11 11:26     ` Will Deacon
2020-02-11 11:43       ` Christian Borntraeger
2020-02-11 11:43         ` Christian Borntraeger
2020-02-13 14:48       ` Christian Borntraeger
2020-02-13 14:48         ` Christian Borntraeger
2020-02-18 16:02         ` Will Deacon
2020-02-13 19:56     ` Sean Christopherson
2020-02-13 19:56       ` Sean Christopherson
2020-02-13 20:13       ` Christian Borntraeger
2020-02-13 20:13         ` Christian Borntraeger
2020-02-13 20:46         ` Sean Christopherson
2020-02-13 20:46           ` Sean Christopherson
2020-02-17 20:55         ` Tom Lendacky
2020-02-17 20:55           ` Tom Lendacky
2020-02-17 21:14           ` Christian Borntraeger
2020-02-17 21:14             ` Christian Borntraeger
2020-02-10 18:17   ` David Hildenbrand
2020-02-10 18:28     ` Christian Borntraeger
2020-02-10 18:43       ` David Hildenbrand
2020-02-10 18:51         ` Christian Borntraeger
2020-02-18  3:36   ` Tian, Kevin
2020-02-18  6:44     ` Christian Borntraeger
2020-02-07 11:39 ` [PATCH 02/35] KVM: s390/interrupt: do not pin adapter interrupt pages Christian Borntraeger
2020-02-10 12:26   ` David Hildenbrand
2020-02-10 18:38     ` Christian Borntraeger
2020-02-10 19:33       ` David Hildenbrand
2020-02-11  9:23         ` [PATCH v2 RFC] " Christian Borntraeger
2020-02-12 11:52           ` Christian Borntraeger
2020-02-12 12:16           ` David Hildenbrand
2020-02-12 12:22             ` Christian Borntraeger
2020-02-12 12:47               ` David Hildenbrand
2020-02-12 12:39           ` Cornelia Huck
2020-02-12 12:44             ` Christian Borntraeger
2020-02-12 13:07               ` Cornelia Huck
2020-02-10 18:56     ` [PATCH 02/35] KVM: s390/interrupt: do not pin adapter interrupt Ulrich Weigand
2020-02-10 18:56       ` Ulrich Weigand
2020-02-10 12:40   ` [PATCH 02/35] KVM: s390/interrupt: do not pin adapter interrupt pages David Hildenbrand
2020-02-07 11:39 ` [PATCH 03/35] s390/protvirt: introduce host side setup Christian Borntraeger
2020-02-10  9:42   ` Thomas Huth
2020-02-10  9:48     ` Christian Borntraeger
2020-02-10 11:54   ` Cornelia Huck
2020-02-10 12:14     ` Christian Borntraeger
2020-02-10 12:31       ` Cornelia Huck
2020-02-10 12:38   ` David Hildenbrand
2020-02-10 12:54     ` Christian Borntraeger
2020-02-07 11:39 ` [PATCH 04/35] s390/protvirt: add ultravisor initialization Christian Borntraeger
2020-02-14 10:25   ` David Hildenbrand
2020-02-14 10:33     ` Christian Borntraeger
2020-02-14 10:34       ` David Hildenbrand
2020-02-07 11:39 ` [PATCH 05/35] s390/mm: provide memory management functions for protected KVM guests Christian Borntraeger
2020-02-12 13:42   ` Cornelia Huck
2020-02-13  7:43     ` Christian Borntraeger
2020-02-13  8:44       ` Cornelia Huck
2020-02-14 17:59   ` David Hildenbrand
2020-02-14 21:17     ` Christian Borntraeger
2020-02-07 11:39 ` [PATCH 06/35] s390/mm: add (non)secure page access exceptions handlers Christian Borntraeger
2020-02-14 18:05   ` David Hildenbrand
2020-02-14 19:59     ` Christian Borntraeger
2020-02-07 11:39 ` [PATCH 07/35] KVM: s390: add new variants of UV CALL Christian Borntraeger
2020-02-07 14:34   ` Thomas Huth
2020-02-07 15:03     ` Christian Borntraeger
2020-02-10 12:16   ` Cornelia Huck
2020-02-10 12:22     ` Christian Borntraeger
2020-02-14 18:28   ` David Hildenbrand
2020-02-14 20:13     ` Christian Borntraeger
2020-02-07 11:39 ` [PATCH 08/35] KVM: s390: protvirt: Add initial lifecycle handling Christian Borntraeger
2020-02-07 16:32   ` Thomas Huth
2020-02-10  8:34     ` Christian Borntraeger
2020-02-08 14:54   ` Thomas Huth
2020-02-10 11:43     ` Christian Borntraeger
2020-02-10 11:45       ` [PATCH/RFC] KVM: s390: protvirt: pass-through rc and rrc Christian Borntraeger
2020-02-10 12:06         ` Christian Borntraeger
2020-02-10 12:29           ` Thomas Huth
2020-02-10 12:50           ` Cornelia Huck
2020-02-10 12:56             ` Christian Borntraeger
2020-02-11  8:48               ` Janosch Frank
2020-02-13  8:43                 ` Christian Borntraeger
2020-02-14 18:39   ` [PATCH 08/35] KVM: s390: protvirt: Add initial lifecycle handling David Hildenbrand
2020-02-14 21:22     ` Christian Borntraeger
2020-02-07 11:39 ` [PATCH 09/35] KVM: s390: protvirt: Add KVM api documentation Christian Borntraeger
2020-02-08 14:57   ` Thomas Huth
2020-02-10 12:26     ` Christian Borntraeger [this message]
2020-02-10 12:57       ` Cornelia Huck
2020-02-10 13:02         ` Christian Borntraeger
2020-02-07 11:39 ` [PATCH 10/35] KVM: s390: protvirt: Secure memory is not mergeable Christian Borntraeger
2020-02-07 11:39 ` [PATCH 11/35] KVM: s390/mm: Make pages accessible before destroying the guest Christian Borntraeger
2020-02-14 18:40   ` David Hildenbrand
2020-02-07 11:39 ` [PATCH 12/35] KVM: s390: protvirt: Handle SE notification interceptions Christian Borntraeger
2020-02-07 11:39 ` [PATCH 13/35] KVM: s390: protvirt: Instruction emulation Christian Borntraeger
2020-02-07 11:39 ` [PATCH 14/35] KVM: s390: protvirt: Add interruption injection controls Christian Borntraeger
2020-02-07 11:39 ` [PATCH 15/35] KVM: s390: protvirt: Implement interruption injection Christian Borntraeger
2020-02-10 10:03   ` Thomas Huth
2020-02-07 11:39 ` [PATCH 16/35] KVM: s390: protvirt: Add SCLP interrupt handling Christian Borntraeger
2020-02-11 12:00   ` Thomas Huth
2020-02-11 20:06     ` Christian Borntraeger
2020-02-07 11:39 ` [PATCH 17/35] KVM: s390: protvirt: Handle spec exception loops Christian Borntraeger
2020-02-07 11:39 ` [PATCH 18/35] KVM: s390: protvirt: Add new gprs location handling Christian Borntraeger
2020-02-07 11:39 ` [PATCH 19/35] KVM: S390: protvirt: Introduce instruction data area bounce buffer Christian Borntraeger
2020-02-07 11:39 ` [PATCH 20/35] KVM: s390: protvirt: handle secure guest prefix pages Christian Borntraeger
2020-02-13  8:37   ` Christian Borntraeger
2020-02-07 11:39 ` [PATCH 21/35] KVM: s390/mm: handle guest unpin events Christian Borntraeger
2020-02-10 14:58   ` Thomas Huth
2020-02-11 13:21     ` Cornelia Huck
2020-02-07 11:39 ` [PATCH 22/35] KVM: s390: protvirt: Write sthyi data to instruction data area Christian Borntraeger
2020-02-07 11:39 ` [PATCH 23/35] KVM: s390: protvirt: STSI handling Christian Borntraeger
2020-02-08 15:01   ` Thomas Huth
2020-02-11 10:55   ` Cornelia Huck
2020-02-07 11:39 ` [PATCH 24/35] KVM: s390: protvirt: disallow one_reg Christian Borntraeger
2020-02-10 17:53   ` Cornelia Huck
2020-02-10 18:34     ` Christian Borntraeger
2020-02-11  8:27       ` Cornelia Huck
2020-02-07 11:39 ` [PATCH 25/35] KVM: s390: protvirt: Only sync fmt4 registers Christian Borntraeger
2020-02-09 15:50   ` Thomas Huth
2020-02-10  9:33     ` Christian Borntraeger
2020-02-11 10:51   ` Cornelia Huck
2020-02-11 12:59     ` Christian Borntraeger
2020-02-07 11:39 ` [PATCH 26/35] KVM: s390: protvirt: Add program exception injection Christian Borntraeger
2020-02-09 15:52   ` Thomas Huth
2020-02-07 11:39 ` [PATCH 27/35] KVM: s390: protvirt: Add diag 308 subcode 8 - 10 handling Christian Borntraeger
2020-02-07 11:39 ` [PATCH 28/35] KVM: s390: protvirt: UV calls diag308 0, 1 Christian Borntraeger
2020-02-09 16:03   ` Thomas Huth
2020-02-10  8:45     ` Christian Borntraeger
2020-02-07 11:39 ` [PATCH 29/35] KVM: s390: protvirt: Report CPU state to Ultravisor Christian Borntraeger
2020-02-07 11:39 ` [PATCH 30/35] KVM: s390: protvirt: Support cmd 5 operation state Christian Borntraeger
2020-02-07 11:39 ` [PATCH 31/35] KVM: s390: protvirt: Add UV debug trace Christian Borntraeger
2020-02-10 13:22   ` Cornelia Huck
2020-02-10 13:40     ` Christian Borntraeger
2020-02-07 11:39 ` [PATCH 32/35] KVM: s390: protvirt: Mask PSW interrupt bits for interception 104 and 112 Christian Borntraeger
2020-02-09 16:07   ` Thomas Huth
2020-02-10 13:28   ` Cornelia Huck
2020-02-10 13:48     ` Christian Borntraeger
2020-02-10 14:47       ` Cornelia Huck
2020-02-07 11:39 ` [PATCH 33/35] KVM: s390: protvirt: do not inject interrupts after start Christian Borntraeger
2020-02-07 11:39 ` [PATCH 34/35] KVM: s390: protvirt: Add UV cpu reset calls Christian Borntraeger
2020-02-10 13:17   ` Cornelia Huck
2020-02-10 13:25     ` Christian Borntraeger
2020-02-07 11:39 ` [PATCH 35/35] DOCUMENTATION: Protected virtual machine introduction and IPL Christian Borntraeger
2020-02-11 12:23   ` Thomas Huth
2020-02-11 20:03     ` Christian Borntraeger
2020-02-12 11:03       ` Cornelia Huck
2020-02-12 11:49         ` Christian Borntraeger
2020-02-12 11:01   ` Cornelia Huck
2020-02-12 16:36     ` Christian Borntraeger

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