From: Arun Menon <[email protected]> This is an incremental step in converting vmstate loading code to report error via Error objects instead of directly printing it to console/monitor. It is ensured that ram_postcopy_incoming_init() must report an error in errp, in case of failure.
Reviewed-by: Fabiano Rosas <[email protected]> Reviewed-by: Marc-André Lureau <[email protected]> Signed-off-by: Arun Menon <[email protected]> Tested-by: Fabiano Rosas <[email protected]> Reviewed-by: Akihiko Odaki <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Peter Xu <[email protected]> --- migration/postcopy-ram.h | 2 +- migration/ram.h | 2 +- migration/postcopy-ram.c | 9 ++++++--- migration/ram.c | 4 ++-- migration/savevm.c | 2 +- 5 files changed, 11 insertions(+), 8 deletions(-) diff --git a/migration/postcopy-ram.h b/migration/postcopy-ram.h index 3852141d7e..ca19433b24 100644 --- a/migration/postcopy-ram.h +++ b/migration/postcopy-ram.h @@ -30,7 +30,7 @@ int postcopy_ram_incoming_setup(MigrationIncomingState *mis); * postcopy later; must be called prior to any precopy. * called from ram.c's similarly named ram_postcopy_incoming_init */ -int postcopy_ram_incoming_init(MigrationIncomingState *mis); +int postcopy_ram_incoming_init(MigrationIncomingState *mis, Error **errp); /* * At the end of a migration where postcopy_ram_incoming_init was called. diff --git a/migration/ram.h b/migration/ram.h index 921c39a2c5..275709a991 100644 --- a/migration/ram.h +++ b/migration/ram.h @@ -86,7 +86,7 @@ void ram_postcopy_migrated_memory_release(MigrationState *ms); void ram_postcopy_send_discard_bitmap(MigrationState *ms); /* For incoming postcopy discard */ int ram_discard_range(const char *block_name, uint64_t start, size_t length); -int ram_postcopy_incoming_init(MigrationIncomingState *mis); +int ram_postcopy_incoming_init(MigrationIncomingState *mis, Error **errp); int ram_load_postcopy(QEMUFile *f, int channel); void ram_handle_zero(void *host, uint64_t size); diff --git a/migration/postcopy-ram.c b/migration/postcopy-ram.c index 0172172343..5471efb4f0 100644 --- a/migration/postcopy-ram.c +++ b/migration/postcopy-ram.c @@ -681,6 +681,7 @@ out: */ static int init_range(RAMBlock *rb, void *opaque) { + Error **errp = opaque; const char *block_name = qemu_ram_get_idstr(rb); void *host_addr = qemu_ram_get_host_addr(rb); ram_addr_t offset = qemu_ram_get_offset(rb); @@ -701,6 +702,8 @@ static int init_range(RAMBlock *rb, void *opaque) * (Precopy will just overwrite this data, so doesn't need the discard) */ if (ram_discard_range(block_name, 0, length)) { + error_setg(errp, "failed to discard RAM block %s len=%zu", + block_name, length); return -1; } @@ -749,9 +752,9 @@ static int cleanup_range(RAMBlock *rb, void *opaque) * postcopy later; must be called prior to any precopy. * called from arch_init's similarly named ram_postcopy_incoming_init */ -int postcopy_ram_incoming_init(MigrationIncomingState *mis) +int postcopy_ram_incoming_init(MigrationIncomingState *mis, Error **errp) { - if (foreach_not_ignored_block(init_range, NULL)) { + if (foreach_not_ignored_block(init_range, errp)) { return -1; } @@ -1703,7 +1706,7 @@ bool postcopy_ram_supported_by_host(MigrationIncomingState *mis, Error **errp) return false; } -int postcopy_ram_incoming_init(MigrationIncomingState *mis) +int postcopy_ram_incoming_init(MigrationIncomingState *mis, Error **errp) { error_report("postcopy_ram_incoming_init: No OS support"); return -1; diff --git a/migration/ram.c b/migration/ram.c index 7208bc114f..6a0dcc04f4 100644 --- a/migration/ram.c +++ b/migration/ram.c @@ -3716,9 +3716,9 @@ static int ram_load_cleanup(void *opaque) * postcopy-ram. postcopy-ram's similarly names * postcopy_ram_incoming_init does the work. */ -int ram_postcopy_incoming_init(MigrationIncomingState *mis) +int ram_postcopy_incoming_init(MigrationIncomingState *mis, Error **errp) { - return postcopy_ram_incoming_init(mis); + return postcopy_ram_incoming_init(mis, errp); } /** diff --git a/migration/savevm.c b/migration/savevm.c index d145e7b1e5..338d1a9756 100644 --- a/migration/savevm.c +++ b/migration/savevm.c @@ -1989,7 +1989,7 @@ static int loadvm_postcopy_handle_advise(MigrationIncomingState *mis, return -1; } - if (ram_postcopy_incoming_init(mis)) { + if (ram_postcopy_incoming_init(mis, NULL) < 0) { return -1; } -- 2.50.1
