[PATCH v3 03/20] accel/kvm: Convert to ram_block_discard_disable()

David Hildenbrand
2020-06-03T14:51:45Z

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 | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c
index d06cc04079..fa18b2caae 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 +2142,8 @@ 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);
+ ret = ram_block_discard_disable(true);
+ assert(!ret);
}

return 0;
--
2.25.4