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| author | Paolo Bonzini <pbonzini@redhat.com> | 2017-08-22 06:50:18 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2017-09-22 21:07:24 +0200 |
| commit | b855f8d175a0a26c9798cbc5962bb8c0d9538231 (patch) | |
| tree | 06ef9b853e3700eb33aaccd9ffba4c0922baaf42 /Makefile | |
| parent | 7c9e527659c67d4d7b41d9504f93d2d7ee482488 (diff) | |
| download | qemu-b855f8d175a0a26c9798cbc5962bb8c0d9538231.tar.gz | |
scsi: build qemu-pr-helper
Introduce a privileged helper to run persistent reservation commands.
This lets virtual machines send persistent reservations without using
CAP_SYS_RAWIO or out-of-tree patches. The helper uses Unix permissions
and SCM_RIGHTS to restrict access to processes that can access its socket
and prove that they have an open file descriptor for a raw SCSI device.
The next patch will also correct the usage of persistent reservations
with multipath devices.
It would also be possible to support for Linux's IOC_PR_* ioctls in
the future, to support NVMe devices. For now, however, only SCSI is
supported.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'Makefile')
| -rw-r--r-- | Makefile | 4 |
1 files changed, 3 insertions, 1 deletions
@@ -372,6 +372,8 @@ qemu-bridge-helper$(EXESUF): qemu-bridge-helper.o $(COMMON_LDADDS) fsdev/virtfs-proxy-helper$(EXESUF): fsdev/virtfs-proxy-helper.o fsdev/9p-marshal.o fsdev/9p-iov-marshal.o $(COMMON_LDADDS) fsdev/virtfs-proxy-helper$(EXESUF): LIBS += -lcap +scsi/qemu-pr-helper$(EXESUF): scsi/qemu-pr-helper.o scsi/utils.o $(crypto-obj-y) $(io-obj-y) $(qom-obj-y) $(COMMON_LDADDS) + qemu-img-cmds.h: $(SRC_PATH)/qemu-img-cmds.hx $(SRC_PATH)/scripts/hxtool $(call quiet-command,sh $(SRC_PATH)/scripts/hxtool -h < $< > $@,"GEN","$@") @@ -488,7 +490,7 @@ clean: rm -f *.msi find . \( -name '*.so' -o -name '*.dll' -o -name '*.mo' -o -name '*.[oda]' \) -type f -exec rm {} + rm -f $(filter-out %.tlb,$(TOOLS)) $(HELPERS-y) qemu-ga TAGS cscope.* *.pod *~ */*~ - rm -f fsdev/*.pod + rm -f fsdev/*.pod scsi/*.pod rm -f qemu-img-cmds.h rm -f ui/shader/*-vert.h ui/shader/*-frag.h @# May not be present in GENERATED_FILES |