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From: David Hildenbrand <david@redhat.com>
To: qemu-devel@nongnu.org
Cc: kvm@vger.kernel.org, qemu-s390x@nongnu.org,
	Richard Henderson <rth@twiddle.net>,
	Paolo Bonzini <pbonzini@redhat.com>,
	"Dr . David Alan Gilbert" <dgilbert@redhat.com>,
	Eduardo Habkost <ehabkost@redhat.com>,
	"Michael S . Tsirkin" <mst@redhat.com>,
	David Hildenbrand <david@redhat.com>
Subject: [PATCH v2 03/19] accel/kvm: Convert to ram_block_discard_disable()
Date: Wed, 20 May 2020 14:31:36 +0200	[thread overview]
Message-ID: <20200520123152.60527-4-david@redhat.com> (raw)
In-Reply-To: <20200520123152.60527-1-david@redhat.com>

Discarding memory does not work as expected. At the time this is called,
we cannot have anyone active that relies on discards to work properly.

Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
---
 accel/kvm/kvm-all.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c
index d06cc04079..7a6158fb99 100644
--- a/accel/kvm/kvm-all.c
+++ b/accel/kvm/kvm-all.c
@@ -40,7 +40,6 @@
 #include "trace.h"
 #include "hw/irq.h"
 #include "sysemu/sev.h"
-#include "sysemu/balloon.h"
 #include "qapi/visitor.h"
 #include "qapi/qapi-types-common.h"
 #include "qapi/qapi-visit-common.h"
@@ -2143,7 +2142,7 @@ static int kvm_init(MachineState *ms)
 
     s->sync_mmu = !!kvm_vm_check_extension(kvm_state, KVM_CAP_SYNC_MMU);
     if (!s->sync_mmu) {
-        qemu_balloon_inhibit(true);
+        g_assert(ram_block_discard_disable(true));
     }
 
     return 0;
-- 
2.25.4


WARNING: multiple messages have this Message-ID (diff)
From: David Hildenbrand <david@redhat.com>
To: qemu-devel@nongnu.org
Cc: Eduardo Habkost <ehabkost@redhat.com>,
	kvm@vger.kernel.org, "Michael S . Tsirkin" <mst@redhat.com>,
	David Hildenbrand <david@redhat.com>,
	"Dr . David Alan Gilbert" <dgilbert@redhat.com>,
	qemu-s390x@nongnu.org, Paolo Bonzini <pbonzini@redhat.com>,
	Richard Henderson <rth@twiddle.net>
Subject: [PATCH v2 03/19] accel/kvm: Convert to ram_block_discard_disable()
Date: Wed, 20 May 2020 14:31:36 +0200	[thread overview]
Message-ID: <20200520123152.60527-4-david@redhat.com> (raw)
In-Reply-To: <20200520123152.60527-1-david@redhat.com>

Discarding memory does not work as expected. At the time this is called,
we cannot have anyone active that relies on discards to work properly.

Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
---
 accel/kvm/kvm-all.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c
index d06cc04079..7a6158fb99 100644
--- a/accel/kvm/kvm-all.c
+++ b/accel/kvm/kvm-all.c
@@ -40,7 +40,6 @@
 #include "trace.h"
 #include "hw/irq.h"
 #include "sysemu/sev.h"
-#include "sysemu/balloon.h"
 #include "qapi/visitor.h"
 #include "qapi/qapi-types-common.h"
 #include "qapi/qapi-visit-common.h"
@@ -2143,7 +2142,7 @@ static int kvm_init(MachineState *ms)
 
     s->sync_mmu = !!kvm_vm_check_extension(kvm_state, KVM_CAP_SYNC_MMU);
     if (!s->sync_mmu) {
-        qemu_balloon_inhibit(true);
+        g_assert(ram_block_discard_disable(true));
     }
 
     return 0;
-- 
2.25.4



  parent reply	other threads:[~2020-05-20 12:32 UTC|newest]

Thread overview: 46+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-20 12:31 [PATCH v2 00/19] virtio-mem: Paravirtualized memory hot(un)plug David Hildenbrand
2020-05-20 12:31 ` David Hildenbrand
2020-05-20 12:31 ` [PATCH v2 01/19] exec: Introduce ram_block_discard_(disable|require)() David Hildenbrand
2020-05-20 12:31   ` David Hildenbrand
2020-05-20 12:31 ` [PATCH v2 02/19] vfio: Convert to ram_block_discard_disable() David Hildenbrand
2020-05-20 12:31   ` David Hildenbrand
2020-05-20 12:31 ` David Hildenbrand [this message]
2020-05-20 12:31   ` [PATCH v2 03/19] accel/kvm: " David Hildenbrand
2020-05-20 13:00   ` Philippe Mathieu-Daudé
2020-05-20 13:01     ` David Hildenbrand
2020-05-20 12:31 ` [PATCH v2 04/19] s390x/pv: " David Hildenbrand
2020-05-20 12:31   ` David Hildenbrand
2020-05-20 12:31 ` [PATCH v2 05/19] virtio-balloon: Rip out qemu_balloon_inhibit() David Hildenbrand
2020-05-20 12:31   ` David Hildenbrand
2020-05-20 12:31 ` [PATCH v2 06/19] target/i386: sev: Use ram_block_discard_disable() David Hildenbrand
2020-05-20 12:31   ` David Hildenbrand
2020-05-20 12:31 ` [PATCH v2 07/19] migration/rdma: " David Hildenbrand
2020-05-20 12:31   ` David Hildenbrand
2020-05-20 15:52   ` Dr. David Alan Gilbert
2020-05-20 15:52     ` Dr. David Alan Gilbert
2020-05-20 12:31 ` [PATCH v2 08/19] migration/colo: " David Hildenbrand
2020-05-20 12:31   ` David Hildenbrand
2020-05-20 12:31 ` [PATCH v2 09/19] linux-headers: update to contain virtio-mem David Hildenbrand
2020-05-20 12:31   ` David Hildenbrand
2020-05-20 12:31 ` [PATCH v2 10/19] virtio-mem: Paravirtualized memory hot(un)plug David Hildenbrand
2020-05-20 12:31   ` David Hildenbrand
2020-05-20 12:31 ` [PATCH v2 11/19] virtio-pci: Proxy for virtio-mem David Hildenbrand
2020-05-20 12:31   ` David Hildenbrand
2020-05-20 12:31 ` [PATCH v2 12/19] MAINTAINERS: Add myself as virtio-mem maintainer David Hildenbrand
2020-05-20 12:31   ` David Hildenbrand
2020-05-20 16:01   ` Dr. David Alan Gilbert
2020-05-20 16:01     ` Dr. David Alan Gilbert
2020-05-20 12:31 ` [PATCH v2 13/19] hmp: Handle virtio-mem when printing memory device info David Hildenbrand
2020-05-20 12:31   ` David Hildenbrand
2020-05-20 12:31 ` [PATCH v2 14/19] numa: Handle virtio-mem in NUMA stats David Hildenbrand
2020-05-20 12:31   ` David Hildenbrand
2020-05-20 12:31 ` [PATCH v2 15/19] pc: Support for virtio-mem-pci David Hildenbrand
2020-05-20 12:31   ` David Hildenbrand
2020-05-20 12:31 ` [PATCH v2 16/19] virtio-mem: Allow notifiers for size changes David Hildenbrand
2020-05-20 12:31   ` David Hildenbrand
2020-05-20 12:31 ` [PATCH v2 17/19] virtio-pci: Send qapi events when the virtio-mem " David Hildenbrand
2020-05-20 12:31   ` David Hildenbrand
2020-05-20 12:31 ` [PATCH v2 18/19] virtio-mem: Migration sanity checks David Hildenbrand
2020-05-20 12:31   ` David Hildenbrand
2020-05-20 12:31 ` [PATCH v2 19/19] virtio-mem: Add trace events David Hildenbrand
2020-05-20 12:31   ` David Hildenbrand

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