From ba690c7171cb863643c21ab9f7e7116ad5df1c63 Mon Sep 17 00:00:00 2001 From: Cornelia Huck Date: Wed, 25 Jan 2017 16:01:03 +0100 Subject: [PATCH] s390x/flic: fail migration on source already Current code puts a 'FLIC_FAILED' marker into the migration stream to indicate something went wrong while saving flic state and fails load if it encounters that marker. VMState's put routine recently gained the ability to return error codes (but did not wire it up yet). In order to be able to reap the benefits of returning an error and failing migration on the source already once this gets wired up in core, return an error in addition to storing 'FLIC_FAILED'. Suggested-by: Dr. David Alan Gilbert Signed-off-by: Cornelia Huck Reviewed-by: Jens Freimann Reviewed-by: Christian Borntraeger --- hw/intc/s390_flic_kvm.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/hw/intc/s390_flic_kvm.c b/hw/intc/s390_flic_kvm.c index e86a84e49a..cc44bc4e1e 100644 --- a/hw/intc/s390_flic_kvm.c +++ b/hw/intc/s390_flic_kvm.c @@ -293,6 +293,7 @@ static int kvm_flic_save(QEMUFile *f, void *opaque, size_t size, int len = FLIC_SAVE_INITIAL_SIZE; void *buf; int count; + int r = 0; flic_disable_wait_pfault((struct KVMS390FLICState *) opaque); @@ -303,7 +304,7 @@ static int kvm_flic_save(QEMUFile *f, void *opaque, size_t size, * migration state */ error_report("flic: couldn't allocate memory"); qemu_put_be64(f, FLIC_FAILED); - return 0; + return -ENOMEM; } count = __get_all_irqs(flic, &buf, len); @@ -314,6 +315,7 @@ static int kvm_flic_save(QEMUFile *f, void *opaque, size_t size, * target system to fail when attempting to load irqs from the * migration state */ qemu_put_be64(f, FLIC_FAILED); + r = count; } else { qemu_put_be64(f, count); qemu_put_buffer(f, (uint8_t *) buf, @@ -321,7 +323,7 @@ static int kvm_flic_save(QEMUFile *f, void *opaque, size_t size, } g_free(buf); - return 0; + return r; } /** -- 2.11.4.GIT