linux

iv/linux

History

Sean Christopherson 0dfcefc973 Revert "nSVM: Check for reserved encodings of TLB_CONTROL in nested VMCB"

commit a484755ab2526ebdbe042397cdd6e427eb4b1a68 upstream.

Revert KVM's made-up consistency check on SVM's TLB control.  The APM says
that unsupported encodings are reserved, but the APM doesn't state that
VMRUN checks for a supported encoding.  Unless something is called out
in "Canonicalization and Consistency Checks" or listed as MBZ (Must Be
Zero), AMD behavior is typically to let software shoot itself in the foot.

This reverts commit 174a921b6975ef959dd82ee9e8844067a62e3ec1.

Fixes: 174a921b6975 ("nSVM: Check for reserved encodings of TLB_CONTROL in nested VMCB")
Reported-by: Stefan Sterz <s.sterz@proxmox.com>
Closes: https://lkml.kernel.org/r/b9915c9c-4cf6-051a-2d91-44cc6380f455%40proxmox.com
Cc: stable@vger.kernel.org
Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>
Link: https://lore.kernel.org/r/20231018194104.1896415-2-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2024-01-25 15:35:47 -08:00

alpha

Kbuild updates for v6.6

2023-09-05 11:01:47 -07:00

arc

ARC: fix smatch warning

2024-01-20 11:51:44 +01:00

arm

ARM: davinci: always select CONFIG_CPU_ARM926T

2024-01-25 15:35:30 -08:00

arm64

arm64: dts: rockchip: Fix led pinctrl of lubancat 1