[libvirt] [PATCH 1/3] qemu: conf: Remove /dev/sev from the default cgroup device acl list

Erik Skultety eskultet at redhat.com
Wed Jan 23 12:57:36 UTC 2019


We should not give domains access to something they don't necessarily
need by default.

Signed-off-by: Erik Skultety <eskultet at redhat.com>
---
 src/qemu/qemu.conf                 | 2 +-
 src/qemu/qemu_cgroup.c             | 2 +-
 src/qemu/test_libvirtd_qemu.aug.in | 1 -
 3 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/src/qemu/qemu.conf b/src/qemu/qemu.conf
index c1f1201134..7820e72dd8 100644
--- a/src/qemu/qemu.conf
+++ b/src/qemu/qemu.conf
@@ -490,7 +490,7 @@
 #    "/dev/null", "/dev/full", "/dev/zero",
 #    "/dev/random", "/dev/urandom",
 #    "/dev/ptmx", "/dev/kvm", "/dev/kqemu",
-#    "/dev/rtc","/dev/hpet", "/dev/sev"
+#    "/dev/rtc","/dev/hpet"
 #]
 #
 # RDMA migration requires the following extra files to be added to the list:
diff --git a/src/qemu/qemu_cgroup.c b/src/qemu/qemu_cgroup.c
index 4931fb6575..1eb5bffce3 100644
--- a/src/qemu/qemu_cgroup.c
+++ b/src/qemu/qemu_cgroup.c
@@ -46,7 +46,7 @@ const char *const defaultDeviceACL[] = {
     "/dev/null", "/dev/full", "/dev/zero",
     "/dev/random", "/dev/urandom",
     "/dev/ptmx", "/dev/kvm", "/dev/kqemu",
-    "/dev/rtc", "/dev/hpet", "/dev/sev",
+    "/dev/rtc", "/dev/hpet",
     NULL,
 };
 #define DEVICE_PTY_MAJOR 136
diff --git a/src/qemu/test_libvirtd_qemu.aug.in b/src/qemu/test_libvirtd_qemu.aug.in
index 4235464530..51a7ad5892 100644
--- a/src/qemu/test_libvirtd_qemu.aug.in
+++ b/src/qemu/test_libvirtd_qemu.aug.in
@@ -63,7 +63,6 @@ module Test_libvirtd_qemu =
     { "8" = "/dev/kqemu" }
     { "9" = "/dev/rtc" }
     { "10" = "/dev/hpet" }
-    { "11" = "/dev/sev" }
 }
 { "save_image_format" = "raw" }
 { "dump_image_format" = "raw" }
-- 
2.20.1




More information about the libvir-list mailing list