On Fri, Jul 31, 2026 at 06:34:12PM +0800, Jia Jia wrote: > As suggested, split the changes into two patches. > > Patch 1 detaches and frees the device IOTLB when ACCESS_PLATFORM is > cleared. The device and virtqueue IOTLB pointers, metadata caches, and > acked features are updated while all virtqueue mutexes are held. It also > drops old IOTLB miss messages and wakes readers. > > Patch 2 keeps the current IOTLB when ACCESS_PLATFORM remains enabled, > so a runtime logging update does not discard valid translations.
pls do not post v2 as reply to v1. confuses tools. thanks! > Changes since v1: > - discard the existing IOTLB instead of returning -EBUSY > - serialize the switch against all virtqueues > - clear old IOTLB messages and wake readers > - move the existing-IOTLB preservation change to a separate patch > > Jia Jia (2): > vhost/vsock: discard IOTLB when ACCESS_PLATFORM is cleared > vhost/vsock: keep IOTLB across feature updates > > drivers/vhost/vsock.c | 46 +++++++++++++++++++++++++++++++++++++------ > 1 file changed, 40 insertions(+), 6 deletions(-) > > -- > 2.34.1
