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| author | Steve Sistare <steven.sistare@oracle.com> | 2025-07-02 14:58:40 -0700 |
|---|---|---|
| committer | Cédric Le Goater <clg@redhat.com> | 2025-07-03 13:42:28 +0200 |
| commit | 7ed0919119b0e7a6b7db1dcaca3a2cb30c771dd1 (patch) | |
| tree | b00c6941b104e5481d301a7bba6743c15d279abf /hw/vfio/helpers.c | |
| parent | 87aeaead5c75448d6e36bf6f9114862c8d523871 (diff) | |
| download | focaccia-qemu-7ed0919119b0e7a6b7db1dcaca3a2cb30c771dd1.tar.gz focaccia-qemu-7ed0919119b0e7a6b7db1dcaca3a2cb30c771dd1.zip | |
migration: close kvm after cpr
cpr-transfer breaks vfio network connectivity to and from the guest, and the host system log shows: irq bypass consumer (token 00000000a03c32e5) registration fails: -16 which is EBUSY. This occurs because KVM descriptors are still open in the old QEMU process. Close them. Cc: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Steve Sistare <steven.sistare@oracle.com> Reviewed-by: Fabiano Rosas <farosas@suse.de> Link: https://lore.kernel.org/qemu-devel/1751493538-202042-4-git-send-email-steven.sistare@oracle.com Signed-off-by: Cédric Le Goater <clg@redhat.com>
Diffstat (limited to 'hw/vfio/helpers.c')
| -rw-r--r-- | hw/vfio/helpers.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/hw/vfio/helpers.c b/hw/vfio/helpers.c index d0dbab1d17..9a5f621545 100644 --- a/hw/vfio/helpers.c +++ b/hw/vfio/helpers.c @@ -117,6 +117,17 @@ bool vfio_get_info_dma_avail(struct vfio_iommu_type1_info *info, int vfio_kvm_device_fd = -1; #endif +void vfio_kvm_device_close(void) +{ +#ifdef CONFIG_KVM + kvm_close(); + if (vfio_kvm_device_fd != -1) { + close(vfio_kvm_device_fd); + vfio_kvm_device_fd = -1; + } +#endif +} + int vfio_kvm_device_add_fd(int fd, Error **errp) { #ifdef CONFIG_KVM |