Re: [PATCH 1/2] KVM: PPC: Book3S: Fix CONFIG_TRANSACTIONAL_MEM=n crash

On Fri, 16 Jul 2021 12:43:09 +1000, Nicholas Piggin wrote:

When running CPU_FTR_P9_TM_HV_ASSIST, HFSCR[TM] is set for the guest
even if the host has CONFIG_TRANSACTIONAL_MEM=n, which causes it to be
unprepared to handle guest exits while transactional.

Normal guests don't have a problem because the HTM capability will not
be advertised, but a rogue or buggy one could crash the host.

Applied to powerpc/fixes.

[1/2] KVM: PPC: Book3S: Fix CONFIG_TRANSACTIONAL_MEM=n crash
      https://git.kernel.org/powerpc/c/bd31ecf44b8e18ccb1e5f6b50f85de6922a60de3
[2/2] KVM: PPC: Fix kvm_arch_vcpu_ioctl vcpu_load leak
      https://git.kernel.org/powerpc/c/bc4188a2f56e821ea057aca6bf444e138d06c252

cheers