b430b51395
Currently, when using "nvme://" for a block device, like -drive file=nvme://0000:01:00.0/1,if=none,id=drive0 \ -device virtio-blk,drive=drive0 \ VFIO may pin all guest memory, and discarding of RAM no longer works as expected. I was able to reproduce this easily with my 01:00.0 Non-Volatile memory controller: Samsung Electronics Co Ltd NVMe SSD Controller SM981/PM981/PM983 Similar to common VFIO, we have to disable it, making sure that: a) virtio-balloon won't discard any memory ("silently disabled") b) virtio-mem and nvme:// run mutually exclusive Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: "Michael S. Tsirkin" <mst@redhat.com> Cc: Alex Williamson <alex.williamson@redhat.com> Cc: Wei Yang <richardw.yang@linux.intel.com> Cc: Dr. David Alan Gilbert <dgilbert@redhat.com> Cc: Igor Mammedov <imammedo@redhat.com> Cc: Pankaj Gupta <pankaj.gupta.linux@gmail.com> Cc: Peter Xu <peterx@redhat.com> Signed-off-by: David Hildenbrand <david@redhat.com> Message-Id: <20201116105947.9194-1-david@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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.. | ||
arch_type.c | ||
bdrv-next-monitor-owned.c | ||
blk-commit-all.c | ||
blk-exp-close-all.c | ||
blockdev-close-all-bdrv-states.c | ||
change-state-handler.c | ||
cmos.c | ||
cpu-get-clock.c | ||
cpu-synchronize-state.c | ||
cpus-get-virtual-clock.c | ||
dump.c | ||
error-printf.c | ||
fdset.c | ||
fw_cfg.c | ||
gdbstub.c | ||
get-vm-name.c | ||
icount.c | ||
io_uring.c | ||
iothread-lock.c | ||
iothread.c | ||
is-daemonized.c | ||
isa-bus.c | ||
linux-aio.c | ||
machine-init-done.c | ||
meson.build | ||
migr-blocker.c | ||
monitor-core.c | ||
monitor.c | ||
pci-bus.c | ||
pci-host-piix.c | ||
qemu-timer-notify-cb.c | ||
qmp_memory_device.c | ||
qtest.c | ||
ram-block.c | ||
ramfb.c | ||
replay-tools.c | ||
replay.c | ||
runstate-check.c | ||
semihost.c | ||
set-fd-handler.c | ||
sysbus.c | ||
target-get-monitor-def.c | ||
target-monitor-defs.c | ||
tpm.c | ||
trace-control.c | ||
uuid.c | ||
vm-stop.c | ||
vmgenid.c | ||
vmstate.c | ||
win32-kbd-hook.c | ||
xen-hw-stub.c |