[PATCH 0/3] powerpc/kvm: Enable HV KVM guests to use prefixed instructions to access emulated MMIO

Michael Ellerman patch-notifications at ellerman.id.au
Thu Apr 6 10:34:29 AEST 2023

On Wed, 08 Mar 2023 17:33:43 +1100, Paul Mackerras wrote:
> This series changes the powerpc KVM code so that HV KVM can fetch
> prefixed instructions from the guest in those situations where there
> is a need to emulate an instruction, which for HV KVM means emulating
> loads and stores to emulated MMIO devices.  (Prefixed instructions
> were introduced with POWER10 and Power ISA v3.1, and consist of two
> 32-bit words, called the prefix and the suffix.)
> [...]

Applied to powerpc/topic/ppc-kvm.

[1/3] powerpc/kvm: Make kvmppc_get_last_inst() produce a ppc_inst_t
[2/3] powerpc/kvm: Fetch prefixed instructions from the guest
[3/3] powerpc/kvm: Enable prefixed instructions for HV KVM and disable for PR KVM


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