Stumbled across this in the news [0]. Built, installed on a (CPU type 'host') VM and started a nested VM for both 6.8 and 6.11 as a smoke test. Note I have an AMD TR 7960X, but AFIACT, the patch affects a general code path not specific to Intel CPUs.
[0]: https://www.phoronix.com/news/Linux-6.13-rc3-Released Fiona Ebner (2): patches: kernel: switch to using full index for patch files backport fix for kvm performance regression with Intel Emerald Rapids ...-accept-an-alternate-timestamp-strin.patch | 2 +- ...d-Debian-wireless-regdb-certificates.patch | 2 +- ...idge-keep-MAC-of-first-assigned-port.patch | 2 +- ...ides-for-missing-ACS-capabilities-4..patch | 4 +- ...-default-dynamic-halt-polling-growth.patch | 2 +- ...de-unregister_netdevice-refcount-lea.patch | 2 +- ...fortify-Do-not-cast-to-unsigned-char.patch | 2 +- ...sk-out-PKRU-bit-in-xfeatures-if-vCPU.patch | 6 +- ...allow-pass-through-on-broken-hardwar.patch | 2 +- ...-Advertise-support-for-flush-by-ASID.patch | 2 +- ...rove-userspace-warnings-for-missing-.patch | 2 +- ...pect-msg_namelen-0-for-recvmsg-calls.patch | 2 +- ...ix-pagecache-leak-when-do-writepages.patch | 2 +- ...pu-pm-Don-t-use-OD-table-on-Arcturus.patch | 2 +- ...UCE-iommu-intel-disable-DMAR-for-SKL.patch | 2 +- ...t-EOPNOTSUPP-for-IOCB_NOWAIT-like-EA.patch | 2 +- ...et-subreq-iov-iter-before-tail-clean.patch | 2 +- ...r-virtualized-VMLOAD-VMSAVE-on-Zen4-.patch | 2 +- ...UID.0xD-XSTATE-offsets-sizes-during-.patch | 165 ++++++++++++++++++ 19 files changed, 186 insertions(+), 21 deletions(-) create mode 100644 patches/kernel/0019-KVM-x86-Cache-CPUID.0xD-XSTATE-offsets-sizes-during-.patch -- 2.39.5 _______________________________________________ pve-devel mailing list pve-devel@lists.proxmox.com https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-devel