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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/netlink/specs/rt-addr.yaml | |
| 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/netlink/specs/rt-addr.yaml')
| -rw-r--r-- | Documentation/netlink/specs/rt-addr.yaml | 199 |
1 files changed, 199 insertions, 0 deletions
diff --git a/Documentation/netlink/specs/rt-addr.yaml b/Documentation/netlink/specs/rt-addr.yaml new file mode 100644 index 000000000..0ecbd24c8 --- /dev/null +++ b/Documentation/netlink/specs/rt-addr.yaml @@ -0,0 +1,199 @@ +# SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) +--- +name: rt-addr +protocol: netlink-raw +uapi-header: linux/rtnetlink.h +protonum: 0 + +doc: >- + Address configuration over rtnetlink. + +definitions: + - + name: ifaddrmsg + type: struct + members: + - + name: ifa-family + type: u8 + - + name: ifa-prefixlen + type: u8 + - + name: ifa-flags + type: u8 + enum: ifa-flags + enum-as-flags: true + - + name: ifa-scope + type: u8 + - + name: ifa-index + type: u32 + - + name: ifa-cacheinfo + type: struct + members: + - + name: ifa-prefered + type: u32 + - + name: ifa-valid + type: u32 + - + name: cstamp + type: u32 + - + name: tstamp + type: u32 + + - + name: ifa-flags + type: flags + name-prefix: ifa-f- + enum-name: + entries: + - + name: secondary + - + name: nodad + - + name: optimistic + - + name: dadfailed + - + name: homeaddress + - + name: deprecated + - + name: tentative + - + name: permanent + - + name: managetempaddr + - + name: noprefixroute + - + name: mcautojoin + - + name: stable-privacy + +attribute-sets: + - + name: addr-attrs + name-prefix: ifa- + attributes: + - + name: address + type: binary + display-hint: ipv4-or-v6 + - + name: local + type: binary + display-hint: ipv4-or-v6 + - + name: label + type: string + - + name: broadcast + type: u32 + byte-order: big-endian + display-hint: ipv4 + - + name: anycast + type: binary + - + name: cacheinfo + type: binary + struct: ifa-cacheinfo + - + name: multicast + type: binary + - + name: flags + type: u32 + enum: ifa-flags + enum-as-flags: true + - + name: rt-priority + type: u32 + - + name: target-netnsid + type: binary + - + name: proto + type: u8 + - + name: mc-users + type: u32 + + +operations: + fixed-header: ifaddrmsg + enum-model: directional + name-prefix: rtm- + list: + - + name: newaddr + doc: Add new address + attribute-set: addr-attrs + do: + request: + value: 20 + attributes: &ifaddr-all + - address + - label + - local + - cacheinfo + - + name: deladdr + doc: Remove address + attribute-set: addr-attrs + do: + request: + value: 21 + attributes: + - address + - local + - + name: getaddr + doc: Dump address information. + attribute-set: addr-attrs + dump: + request: + value: 22 + attributes: [] + reply: + value: 20 + attributes: *ifaddr-all + - + name: getmulticast + doc: Get / dump IPv4/IPv6 multicast addresses. + attribute-set: addr-attrs + fixed-header: ifaddrmsg + do: + request: + value: 58 + attributes: [] + reply: + value: 58 + attributes: &mcaddr-attrs + - multicast + - mc-users + - cacheinfo + dump: + request: + value: 58 + attributes: [] + reply: + value: 58 + attributes: *mcaddr-attrs + +mcast-groups: + list: + - + name: rtnlgrp-ipv4-ifaddr + value: 5 + - + name: rtnlgrp-ipv6-ifaddr + value: 9 |