From: Christian Borntraeger <borntraeger@de.ibm.com>
To: Christian Borntraeger <borntraeger@de.ibm.com>,
Janosch Frank <frankja@linux.vnet.ibm.com>
Cc: KVM <kvm@vger.kernel.org>, Cornelia Huck <cohuck@redhat.com>,
David Hildenbrand <david@redhat.com>,
Thomas Huth <thuth@redhat.com>,
Ulrich Weigand <Ulrich.Weigand@de.ibm.com>,
Claudio Imbrenda <imbrenda@linux.ibm.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: [PATCH v4 27/36] KVM: s390: protvirt: UV calls in support of diag308 0, 1
Date: Mon, 24 Feb 2020 06:40:58 -0500 [thread overview]
Message-ID: <20200224114107.4646-28-borntraeger@de.ibm.com> (raw)
In-Reply-To: <20200224114107.4646-1-borntraeger@de.ibm.com>
From: Janosch Frank <frankja@linux.ibm.com>
diag 308 subcode 0 and 1 require several KVM and Ultravisor interactions.
Specific to these "soft" reboots are
* The "unshare all" UVC
* The "prepare for reset" UVC
Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Acked-by: David Hildenbrand <david@redhat.com>
[borntraeger@de.ibm.com: patch merging, splitting, fixing]
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
---
arch/s390/include/asm/uv.h | 4 ++++
arch/s390/kvm/kvm-s390.c | 22 ++++++++++++++++++++++
include/uapi/linux/kvm.h | 2 ++
3 files changed, 28 insertions(+)
diff --git a/arch/s390/include/asm/uv.h b/arch/s390/include/asm/uv.h
index 09dc6dba94a4..a7595c647759 100644
--- a/arch/s390/include/asm/uv.h
+++ b/arch/s390/include/asm/uv.h
@@ -36,6 +36,8 @@
#define UVC_CMD_SET_SEC_CONF_PARAMS 0x0300
#define UVC_CMD_UNPACK_IMG 0x0301
#define UVC_CMD_VERIFY_IMG 0x0302
+#define UVC_CMD_PREPARE_RESET 0x0320
+#define UVC_CMD_SET_UNSHARE_ALL 0x0340
#define UVC_CMD_PIN_PAGE_SHARED 0x0341
#define UVC_CMD_UNPIN_PAGE_SHARED 0x0342
#define UVC_CMD_SET_SHARED_ACCESS 0x1000
@@ -56,6 +58,8 @@ enum uv_cmds_inst {
BIT_UVC_CMD_SET_SEC_PARMS = 11,
BIT_UVC_CMD_UNPACK_IMG = 13,
BIT_UVC_CMD_VERIFY_IMG = 14,
+ BIT_UVC_CMD_PREPARE_RESET = 18,
+ BIT_UVC_CMD_UNSHARE_ALL = 20,
BIT_UVC_CMD_PIN_PAGE_SHARED = 21,
BIT_UVC_CMD_UNPIN_PAGE_SHARED = 22,
};
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index d6dcd0f5859f..f318603be34c 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -2330,6 +2330,28 @@ static int kvm_s390_handle_pv(struct kvm *kvm, struct kvm_pv_cmd *cmd)
cmd->rrc);
break;
}
+ case KVM_PV_PREP_RESET: {
+ r = -EINVAL;
+ if (!kvm_s390_pv_is_protected(kvm))
+ break;
+
+ r = uv_cmd_nodata(kvm_s390_pv_get_handle(kvm),
+ UVC_CMD_PREPARE_RESET, &cmd->rc, &cmd->rrc);
+ KVM_UV_EVENT(kvm, 3, "PROTVIRT PREP RESET: rc %x rrc %x",
+ cmd->rc, cmd->rrc);
+ break;
+ }
+ case KVM_PV_UNSHARE_ALL: {
+ r = -EINVAL;
+ if (!kvm_s390_pv_is_protected(kvm))
+ break;
+
+ r = uv_cmd_nodata(kvm_s390_pv_get_handle(kvm),
+ UVC_CMD_SET_UNSHARE_ALL, &cmd->rc, &cmd->rrc);
+ KVM_UV_EVENT(kvm, 3, "PROTVIRT UNSHARE: rc %x rrc %x",
+ cmd->rc, cmd->rrc);
+ break;
+ }
default:
return -ENOTTY;
}
diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h
index f4cac1c09e97..2c354ba3a610 100644
--- a/include/uapi/linux/kvm.h
+++ b/include/uapi/linux/kvm.h
@@ -1500,6 +1500,8 @@ enum pv_cmd_id {
KVM_PV_SET_SEC_PARMS,
KVM_PV_UNPACK,
KVM_PV_VERIFY,
+ KVM_PV_PREP_RESET,
+ KVM_PV_UNSHARE_ALL,
};
struct kvm_pv_cmd {
--
2.25.0
next prev parent reply other threads:[~2020-02-24 11:41 UTC|newest]
Thread overview: 101+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-24 11:40 [PATCH v4 00/36] KVM: s390: Add support for protected VMs Christian Borntraeger
2020-02-24 11:40 ` [PATCH v4 01/36] mm/gup/writeback: add callbacks for inaccessible pages Christian Borntraeger
2020-02-24 11:40 ` [PATCH v4 02/36] KVM: s390/interrupt: do not pin adapter interrupt pages Christian Borntraeger
2020-02-25 10:18 ` Cornelia Huck
2020-02-24 11:40 ` [PATCH v4 03/36] s390/protvirt: introduce host side setup Christian Borntraeger
2020-02-24 11:40 ` [PATCH v4 04/36] s390/protvirt: add ultravisor initialization Christian Borntraeger
2020-02-24 11:40 ` [PATCH v4 05/36] s390/mm: provide memory management functions for protected KVM guests Christian Borntraeger
2020-02-25 10:32 ` Cornelia Huck
2020-02-24 11:40 ` [PATCH v4 06/36] s390/mm: add (non)secure page access exceptions handlers Christian Borntraeger
2020-02-25 10:37 ` Cornelia Huck
2020-02-24 11:40 ` [PATCH v4 07/36] KVM: s390: protvirt: Add UV debug trace Christian Borntraeger
2020-02-24 11:40 ` [PATCH v4 08/36] KVM: s390: add new variants of UV CALL Christian Borntraeger
2020-02-24 11:40 ` [PATCH v4 09/36] KVM: s390: protvirt: Add initial vm and cpu lifecycle handling Christian Borntraeger
2020-02-25 17:46 ` David Hildenbrand
2020-02-25 21:44 ` Christian Borntraeger
2020-02-25 22:29 ` David Hildenbrand
2020-02-25 21:48 ` [PATCH v4.5 " Christian Borntraeger
2020-02-25 22:37 ` David Hildenbrand
2020-02-26 8:12 ` Christian Borntraeger
2020-02-26 8:28 ` David Hildenbrand
2020-02-26 9:12 ` Christian Borntraeger
2020-02-26 9:15 ` David Hildenbrand
2020-02-26 10:01 ` Cornelia Huck
2020-02-26 10:52 ` Christian Borntraeger
2020-02-26 10:38 ` Cornelia Huck
2020-02-26 11:03 ` Christian Borntraeger
2020-02-26 12:26 ` Cornelia Huck
2020-02-26 13:31 ` Christian Borntraeger
2020-02-26 16:54 ` Cornelia Huck
2020-02-26 17:00 ` [PATCH v4.6 " Christian Borntraeger
2020-02-26 17:08 ` Cornelia Huck
2020-02-24 11:40 ` [PATCH v4 10/36] KVM: s390: protvirt: Secure memory is not mergeable Christian Borntraeger
2020-02-24 11:40 ` [PATCH v4 11/36] KVM: s390/mm: Make pages accessible before destroying the guest Christian Borntraeger
2020-02-24 11:40 ` [PATCH v4 12/36] KVM: s390: protvirt: Handle SE notification interceptions Christian Borntraeger
2020-02-25 11:11 ` Cornelia Huck
2020-02-24 11:40 ` [PATCH v4 13/36] KVM: s390: protvirt: Instruction emulation Christian Borntraeger
2020-02-24 11:40 ` [PATCH v4 14/36] KVM: s390: protvirt: Implement interrupt injection Christian Borntraeger
2020-02-25 12:07 ` Cornelia Huck
2020-02-24 11:40 ` [PATCH v4 15/36] KVM: s390: protvirt: Add SCLP interrupt handling Christian Borntraeger
2020-02-25 12:11 ` Cornelia Huck
2020-02-24 11:40 ` [PATCH v4 16/36] KVM: s390: protvirt: Handle spec exception loops Christian Borntraeger
2020-02-24 19:14 ` David Hildenbrand
2020-02-24 11:40 ` [PATCH v4 17/36] KVM: s390: protvirt: Add new gprs location handling Christian Borntraeger
2020-02-24 11:40 ` [PATCH v4 18/36] KVM: S390: protvirt: Introduce instruction data area bounce buffer Christian Borntraeger
2020-02-24 19:13 ` David Hildenbrand
2020-02-25 7:50 ` Christian Borntraeger
2020-02-25 8:18 ` David Hildenbrand
2020-02-25 17:21 ` Cornelia Huck
2020-02-25 18:39 ` Christian Borntraeger
2020-02-25 17:19 ` Cornelia Huck
2020-02-25 18:37 ` Christian Borntraeger
2020-02-24 11:40 ` [PATCH v4 19/36] KVM: s390: protvirt: handle secure guest prefix pages Christian Borntraeger
2020-02-25 12:15 ` Cornelia Huck
2020-02-24 11:40 ` [PATCH v4 20/36] KVM: s390/mm: handle guest unpin events Christian Borntraeger
2020-02-25 12:18 ` Cornelia Huck
2020-02-25 14:21 ` Christian Borntraeger
2020-02-25 14:30 ` Cornelia Huck
2020-02-24 11:40 ` [PATCH v4 21/36] KVM: s390: protvirt: Write sthyi data to instruction data area Christian Borntraeger
2020-02-24 11:40 ` [PATCH v4 22/36] KVM: s390: protvirt: STSI handling Christian Borntraeger
2020-02-24 19:00 ` David Hildenbrand
2020-02-24 11:40 ` [PATCH v4 23/36] KVM: s390: protvirt: disallow one_reg Christian Borntraeger
2020-02-24 11:40 ` [PATCH v4 24/36] KVM: s390: protvirt: Do only reset registers that are accessible Christian Borntraeger
2020-02-25 12:32 ` Cornelia Huck
2020-02-25 12:51 ` Janosch Frank
2020-02-25 13:06 ` Cornelia Huck
2020-02-25 13:08 ` Christian Borntraeger
2020-02-25 13:16 ` Cornelia Huck
2020-02-25 13:07 ` Christian Borntraeger
2020-02-24 11:40 ` [PATCH v4 25/36] KVM: s390: protvirt: Only sync fmt4 registers Christian Borntraeger
2020-02-25 12:36 ` Cornelia Huck
2020-02-24 11:40 ` [PATCH v4 26/36] KVM: s390: protvirt: Add program exception injection Christian Borntraeger
2020-02-24 11:40 ` Christian Borntraeger [this message]
2020-02-25 12:51 ` [PATCH v4 27/36] KVM: s390: protvirt: UV calls in support of diag308 0, 1 Cornelia Huck
2020-02-24 11:40 ` [PATCH v4 28/36] KVM: s390: protvirt: Report CPU state to Ultravisor Christian Borntraeger
2020-02-24 19:05 ` David Hildenbrand
2020-02-25 8:29 ` Christian Borntraeger
2020-02-25 8:41 ` David Hildenbrand
2020-02-25 13:01 ` Cornelia Huck
2020-02-25 13:21 ` Christian Borntraeger
2020-02-25 13:44 ` Cornelia Huck
2020-02-24 11:41 ` [PATCH v4 29/36] KVM: s390: protvirt: Support cmd 5 operation state Christian Borntraeger
2020-02-24 19:08 ` David Hildenbrand
2020-02-25 7:53 ` Christian Borntraeger
2020-02-25 13:21 ` Cornelia Huck
2020-02-24 11:41 ` [PATCH v4 30/36] KVM: s390: protvirt: Mask PSW interrupt bits for interception 104 and 112 Christian Borntraeger
2020-02-24 11:41 ` [PATCH v4 31/36] KVM: s390: protvirt: do not inject interrupts after start Christian Borntraeger
2020-02-24 11:41 ` [PATCH v4 32/36] KVM: s390: protvirt: Add UV cpu reset calls Christian Borntraeger
2020-02-24 11:41 ` [PATCH v4 33/36] DOCUMENTATION: Protected virtual machine introduction and IPL Christian Borntraeger
2020-02-25 16:22 ` Cornelia Huck
2020-02-25 16:42 ` Christian Borntraeger
2020-02-24 11:41 ` [PATCH v4 34/36] s390: protvirt: Add sysfs firmware interface for Ultravisor information Christian Borntraeger
2020-02-25 13:30 ` Cornelia Huck
2020-02-25 13:37 ` Cornelia Huck
2020-02-24 11:41 ` [PATCH v4 35/36] KVM: s390: protvirt: introduce and enable KVM_CAP_S390_PROTECTED Christian Borntraeger
2020-02-25 13:22 ` Cornelia Huck
2020-02-24 11:41 ` [PATCH v4 36/36] KVM: s390: protvirt: Add KVM api documentation Christian Borntraeger
2020-02-25 15:50 ` Cornelia Huck
2020-02-25 19:30 ` Christian Borntraeger
2020-02-27 8:47 ` [PATCH v4.1 " Christian Borntraeger
2020-02-27 9:04 ` Cornelia Huck
2020-02-26 9:35 ` [PATCH v4 00/36] KVM: s390: Add support for protected VMs Christian Borntraeger
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