KVM: PPC: Make kvmppc_get_last_inst() produce a ppc_inst_t

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This changes kvmppc_get_last_inst() so that the instruction it fetches
is returned in a ppc_inst_t variable rather than a u32.  This will
allow us to return a 64-bit prefixed instruction on those 64-bit
machines that implement Power ISA v3.1 or later, such as POWER10.
On 32-bit platforms, ppc_inst_t is 32 bits wide, and is turned back
into a u32 by ppc_inst_val, which is an identity operation on those
platforms.

Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Tested-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/ZAgsiPlL9O7KnlZZ@cleo

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This commit is contained in:

Paul Mackerras 2023-03-08 17:34:48 +11:00 • committed by Michael Ellerman

parent 6cd5c1db99

commit acf17878da

9 changed files with 47 additions and 31 deletions

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5

arch/powerpc/include/asm/kvm_ppc.h

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arch/powerpc/kvm/book3s_64_mmu_hv.c

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arch/powerpc/kvm/book3s_hv.c

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arch/powerpc/kvm/book3s_paired_singles.c

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arch/powerpc/kvm/book3s_pr.c

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arch/powerpc/kvm/booke.c

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arch/powerpc/kvm/emulate.c

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arch/powerpc/kvm/emulate_loadstore.c

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arch/powerpc/kvm/powerpc.c

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