From: Janosch Frank <frankja@linux.ibm.com>
To: qemu-devel@nongnu.org
Cc: borntraeger@de.ibm.com, qemu-s390x@nongnu.org, cohuck@redhat.com,
david@redhat.com
Subject: [PATCH v5 07/18] s390x: protvirt: Inhibit balloon when switching to protected mode
Date: Wed, 26 Feb 2020 07:20:27 -0500 [thread overview]
Message-ID: <20200226122038.61481-8-frankja@linux.ibm.com> (raw)
In-Reply-To: <20200226122038.61481-1-frankja@linux.ibm.com>
Ballooning in protected VMs can only be done when the guest shares the
pages it gives to the host. Hence, until we have a solution for this
in the guest kernel, we inhibit ballooning when switching into
protected mode and reverse that once we move out of it.
Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
---
hw/s390x/s390-virtio-ccw.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/hw/s390x/s390-virtio-ccw.c b/hw/s390x/s390-virtio-ccw.c
index 9983165b05..0f4455d1df 100644
--- a/hw/s390x/s390-virtio-ccw.c
+++ b/hw/s390x/s390-virtio-ccw.c
@@ -41,6 +41,7 @@
#include "hw/qdev-properties.h"
#include "hw/s390x/tod.h"
#include "sysemu/sysemu.h"
+#include "sysemu/balloon.h"
#include "hw/s390x/pv.h"
#include "migration/blocker.h"
@@ -336,6 +337,7 @@ static void s390_machine_unprotect(S390CcwMachineState *ms)
ms->pv = false;
}
migrate_del_blocker(pv_mig_blocker);
+ qemu_balloon_inhibit(false);
}
static int s390_machine_protect(S390CcwMachineState *ms)
@@ -344,6 +346,7 @@ static int s390_machine_protect(S390CcwMachineState *ms)
CPUState *t;
int rc;
+ qemu_balloon_inhibit(true);
if (!pv_mig_blocker) {
error_setg(&pv_mig_blocker,
"protected VMs are currently not migrateable.");
--
2.20.1
next prev parent reply other threads:[~2020-02-26 12:23 UTC|newest]
Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-26 12:20 [PATCH v5 00/18] s390x: Protected Virtualization support Janosch Frank
2020-02-26 12:20 ` [PATCH v5 01/18] s390x: Use constant for ESA PSW address Janosch Frank
2020-02-26 13:46 ` Christian Borntraeger
2020-02-26 13:47 ` Janosch Frank
2020-02-26 14:27 ` David Hildenbrand
2020-02-26 17:51 ` Cornelia Huck
2020-02-26 17:52 ` David Hildenbrand
2020-02-27 7:53 ` Janosch Frank
2020-02-27 8:09 ` Janosch Frank
2020-02-27 9:06 ` Cornelia Huck
2020-02-27 9:23 ` [PATCH v6] s390x: Rename and use constants for short PSW address and mask Janosch Frank
2020-02-27 9:27 ` David Hildenbrand
2020-02-27 10:36 ` Cornelia Huck
2020-02-26 12:20 ` [PATCH v5 02/18] Sync pv Janosch Frank
2020-02-26 12:20 ` [PATCH v5 03/18] s390x: protvirt: Add diag308 subcodes 8 - 10 Janosch Frank
2020-02-26 12:20 ` [PATCH v5 04/18] s390x: protvirt: Support unpack facility Janosch Frank
2020-02-26 12:20 ` [PATCH v5 05/18] s390x: protvirt: Add migration blocker Janosch Frank
2020-02-26 14:05 ` Christian Borntraeger
2020-02-26 14:08 ` Janosch Frank
2020-02-26 12:20 ` [PATCH v5 06/18] s390x: protvirt: Handle diag 308 subcodes 0,1,3,4 Janosch Frank
2020-02-26 15:00 ` Christian Borntraeger
2020-02-26 15:11 ` Janosch Frank
2020-02-26 12:20 ` Janosch Frank [this message]
2020-02-26 14:59 ` [PATCH v5 07/18] s390x: protvirt: Inhibit balloon when switching to protected mode David Hildenbrand
2020-02-26 15:06 ` Christian Borntraeger
2020-02-26 15:16 ` David Hildenbrand
2020-02-26 15:30 ` Janosch Frank
2020-02-26 15:31 ` David Hildenbrand
2020-02-26 18:24 ` Cornelia Huck
2020-03-03 12:42 ` Christian Borntraeger
2020-02-26 15:11 ` Janosch Frank
2020-02-26 15:13 ` Christian Borntraeger
2020-02-26 15:15 ` David Hildenbrand
2020-02-27 12:24 ` Halil Pasic
2020-03-19 13:42 ` Halil Pasic
2020-03-19 13:54 ` David Hildenbrand
2020-03-19 15:40 ` Halil Pasic
2020-03-19 17:31 ` David Hildenbrand
2020-03-20 18:43 ` Halil Pasic
2020-03-24 21:07 ` Brijesh Singh
2020-03-27 10:50 ` David Hildenbrand
2020-03-19 17:45 ` Michael S. Tsirkin
2020-03-20 9:36 ` David Hildenbrand
2020-03-29 14:48 ` Michael S. Tsirkin
2020-03-31 8:59 ` David Hildenbrand
2020-02-26 12:20 ` [PATCH v5 08/18] s390x: protvirt: KVM intercept changes Janosch Frank
2020-02-26 12:20 ` [PATCH v5 09/18] s390x: Add SIDA memory ops Janosch Frank
2020-02-26 12:20 ` [PATCH v5 10/18] s390x: protvirt: Move STSI data over SIDAD Janosch Frank
2020-02-26 12:20 ` [PATCH v5 11/18] s390x: protvirt: SCLP interpretation Janosch Frank
2020-02-26 12:20 ` [PATCH v5 12/18] s390x: protvirt: Set guest IPL PSW Janosch Frank
2020-02-26 12:20 ` [PATCH v5 13/18] s390x: protvirt: Move diag 308 data over SIDAD Janosch Frank
2020-02-26 12:20 ` [PATCH v5 14/18] s390x: protvirt: Disable address checks for PV guest IO emulation Janosch Frank
2020-02-26 12:20 ` [PATCH v5 15/18] s390x: protvirt: Move IO control structures over SIDA Janosch Frank
2020-02-26 12:20 ` [PATCH v5 16/18] s390x: protvirt: Handle SIGP store status correctly Janosch Frank
2020-02-26 12:20 ` [PATCH v5 17/18] s390x: Add unpack facility feature to GA1 Janosch Frank
2020-02-26 12:20 ` [PATCH v5 18/18] docs: Add protvirt docs Janosch Frank
2020-02-26 20:09 ` [PATCH v5 00/18] s390x: Protected Virtualization support Cornelia Huck
2020-02-27 8:32 ` Janosch Frank
2020-03-03 15:50 ` [PATCH] pc-bios: s390x: Save iplb location in lowcore Janosch Frank
2020-03-03 16:13 ` David Hildenbrand
2020-03-04 8:59 ` Janosch Frank
2020-03-04 9:05 ` David Hildenbrand
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