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migration/vfio: compile only once

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Acked-by: Fabiano Rosas <farosas@suse.de>
Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20250730220435.1139101-3-pierrick.bouvier@linaro.org>
[PMD: Cover vfio-stub.c in MAINTAINERS]
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
This commit is contained in:
Pierrick Bouvier
2025-07-30 15:04:35 -07:00
committed by Philippe Mathieu-Daudé
parent 7ef54b7bf3
commit 01b6fb3705
4 changed files with 20 additions and 17 deletions
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1
MAINTAINERS
View File

@@ -2268,6 +2268,7 @@ F: util/vfio-helpers.c
F: include/hw/vfio/ F: include/hw/vfio/
F: docs/devel/migration/vfio.rst F: docs/devel/migration/vfio.rst
F: qapi/vfio.json F: qapi/vfio.json
F: migration/vfio-stub.c
F: tests/functional/aarch64/test_device_passthrough.py F: tests/functional/aarch64/test_device_passthrough.py
vfio-igd vfio-igd

6
migration/meson.build
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@@ -49,6 +49,6 @@ system_ss.add(when: zstd, if_true: files('multifd-zstd.c'))
system_ss.add(when: qpl, if_true: files('multifd-qpl.c')) system_ss.add(when: qpl, if_true: files('multifd-qpl.c'))
system_ss.add(when: uadk, if_true: files('multifd-uadk.c')) system_ss.add(when: uadk, if_true: files('multifd-uadk.c'))
system_ss.add(when: qatzip, if_true: files('multifd-qatzip.c')) system_ss.add(when: qatzip, if_true: files('multifd-qatzip.c'))
system_ss.add(when: 'CONFIG_VFIO',
specific_ss.add(when: 'CONFIG_SYSTEM_ONLY', if_true: files('vfio.c'),
if_true: files('vfio.c')) if_false: files('vfio-stub.c'))

16
migration/vfio-stub.c Normal file
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@@ -0,0 +1,16 @@
/*
* QEMU live migration - stubs for VFIO
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "qemu/osdep.h"
#include "migration.h"
void migration_populate_vfio_info(MigrationInfo *info)
{
}
void migration_reset_vfio_bytes_transferred(void)
{
}

14
migration/vfio.c
View File

@@ -8,13 +8,8 @@
#include "qemu/osdep.h" #include "qemu/osdep.h"
#include "qapi/qapi-types-migration.h" #include "qapi/qapi-types-migration.h"
#include "migration.h" #include "migration.h"
#include CONFIG_DEVICES
#ifdef CONFIG_VFIO
#include "hw/vfio/vfio-migration.h" #include "hw/vfio/vfio-migration.h"
#endif
#ifdef CONFIG_VFIO
void migration_populate_vfio_info(MigrationInfo *info) void migration_populate_vfio_info(MigrationInfo *info)
{ {
if (vfio_migration_active()) { if (vfio_migration_active()) {
@@ -27,12 +22,3 @@ void migration_reset_vfio_bytes_transferred(void)
{ {
vfio_migration_reset_bytes_transferred(); vfio_migration_reset_bytes_transferred();
} }
#else
void migration_populate_vfio_info(MigrationInfo *info)
{
}
void migration_reset_vfio_bytes_transferred(void)
{
}
#endif