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| author | Zeng Chi <zengchi@kylinos.cn> | 2026-09-21 18:24:42 +0800 |
|---|---|---|
| committer | Sean Christopherson <seanjc@google.com> | 2026-09-22 08:36:16 -0700 |
| commit | 119e9db233ad0f4cbd4cfb9f9385a7bca378b37d (patch) | |
| tree | 660d50d4139cb750fbde1ae3432452c20726c99d /Documentation/networking/seg6-sysctl.rst | |
| download | linux-stable-119e9db233ad0f4cbd4cfb9f9385a7bca378b37d.tar.gz linux-stable-119e9db233ad0f4cbd4cfb9f9385a7bca378b37d.zip | |
KVM: Don't pre-reserve xarray entries when storing empty/NULL attributesgrafted
Skip the xarray reservation loop when clearing all memory attributes, as
storing NULL only erases the entry and never needs to allocate, so no
reservation (and no cleanup of a failed one) is required in that case.
Suggested-by: Sean Christopherson <seanjc@google.com>
Cc: David Ballesteros <davimaba.v@proton.me>
Signed-off-by: Zeng Chi <zengchi@kylinos.cn>
Link: https://patch.msgid.link/20260921102442.1232375-1-zeng_chi911@163.com
[sean: split to separate patch]
Signed-off-by: Sean Christopherson <seanjc@google.com>
Diffstat (limited to 'Documentation/networking/seg6-sysctl.rst')
| -rw-r--r-- | Documentation/networking/seg6-sysctl.rst | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/Documentation/networking/seg6-sysctl.rst b/Documentation/networking/seg6-sysctl.rst new file mode 100644 index 000000000..1b6af4779 --- /dev/null +++ b/Documentation/networking/seg6-sysctl.rst @@ -0,0 +1,42 @@ +.. SPDX-License-Identifier: GPL-2.0 + +==================== +Seg6 Sysfs variables +==================== + + +/proc/sys/net/conf/<iface>/seg6_* variables: +============================================ + +seg6_enabled - BOOL + Accept or drop SR-enabled IPv6 packets on this interface. + + Relevant packets are those with SRH present and DA = local. + + * 0 - disabled (default) + * not 0 - enabled + +seg6_require_hmac - INTEGER + Define HMAC policy for ingress SR-enabled packets on this interface. + + * -1 - Ignore HMAC field + * 0 - Accept SR packets without HMAC, validate SR packets with HMAC + * 1 - Drop SR packets without HMAC, validate SR packets with HMAC + + Default is 0. + +/proc/sys/net/ipv6/seg6_* variables: +==================================== + +seg6_flowlabel - INTEGER + Controls the behaviour of computing the flowlabel of outer + IPv6 header in case of SR T.encaps + + == ======================================================= + -1 set flowlabel to zero. + 0 copy flowlabel from Inner packet in case of Inner IPv6 + (Set flowlabel to 0 in case IPv4/L2) + 1 Compute the flowlabel using seg6_make_flowlabel() + == ======================================================= + + Default is 0. |