mirror of
https://github.com/hardkernel/linux.git
synced 2026-06-04 18:19:28 +09:00
b86bb11e3a
Commitf1c6366e30("KVM: SVM: Add required changes to support intercepts under SEV-ES") prevents hypervisor accesses guest register state when the guest is running under SEV-ES. The initial value of vcpu->arch.guest_state_protected is false, it will not be updated in preemption notifiers after this commit which means that the kernel spinlock lock holder will always be skipped to boost. Let's fix it by always treating preempted is in the guest kernel mode, false positive is better than skip completely. Fixes:f1c6366e30(KVM: SVM: Add required changes to support intercepts under SEV-ES) Signed-off-by: Wanpeng Li <wanpengli@tencent.com> Message-Id: <1619080459-30032-1-git-send-email-wanpengli@tencent.com> Cc: stable@vger.kernel.org Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.