diff options
| author | Paul Mackerras <paulus@ozlabs.org> | 2023-03-08 17:34:48 +1100 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2023-04-03 15:45:41 +1000 |
| commit | acf17878da680a0c11c0bcb8a54b4f676ff39c80 (patch) | |
| tree | a3b9d8e9723adb4af45875fe37c1d9ccac809879 /arch/powerpc/kvm/emulate.c | |
| parent | 6cd5c1db9983600f1848822e86e4906377b4a899 (diff) | |
KVM: PPC: Make kvmppc_get_last_inst() produce a ppc_inst_t
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
Diffstat (limited to 'arch/powerpc/kvm/emulate.c')
| -rw-r--r-- | arch/powerpc/kvm/emulate.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/powerpc/kvm/emulate.c b/arch/powerpc/kvm/emulate.c index ee1147c98cd8..2a51d5baabf4 100644 --- a/arch/powerpc/kvm/emulate.c +++ b/arch/powerpc/kvm/emulate.c @@ -194,6 +194,7 @@ static int kvmppc_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, int rt) int kvmppc_emulate_instruction(struct kvm_vcpu *vcpu) { u32 inst; + ppc_inst_t pinst; int rs, rt, sprn; enum emulation_result emulated; int advance = 1; @@ -201,7 +202,8 @@ int kvmppc_emulate_instruction(struct kvm_vcpu *vcpu) /* this default type might be overwritten by subcategories */ kvmppc_set_exit_type(vcpu, EMULATED_INST_EXITS); - emulated = kvmppc_get_last_inst(vcpu, INST_GENERIC, &inst); + emulated = kvmppc_get_last_inst(vcpu, INST_GENERIC, &pinst); + inst = ppc_inst_val(pinst); if (emulated != EMULATE_DONE) return emulated; |