Emulate TMCFG0 TMRN register exposing one HW thread per vcpu. Signed-off-by: Mihai Caraman <mihai.caraman@xxxxxxxxxxxxx> [Laurentiu.Tudor@xxxxxxxxxxxxx: rebased on latest kernel, use define instead of hardcoded value] Signed-off-by: Laurentiu Tudor <Laurentiu.Tudor@xxxxxxxxxxxxx> --- Needs this patch: https://patchwork.ozlabs.org/patch/521752/ arch/powerpc/include/asm/disassemble.h | 5 +++++ arch/powerpc/kvm/e500_emulate.c | 11 +++++++++++ 2 files changed, 16 insertions(+) diff --git a/arch/powerpc/include/asm/disassemble.h b/arch/powerpc/include/asm/disassemble.h index 6330a61..4852e84 100644 --- a/arch/powerpc/include/asm/disassemble.h +++ b/arch/powerpc/include/asm/disassemble.h @@ -42,6 +42,11 @@ static inline unsigned int get_dcrn(u32 inst) return ((inst >> 16) & 0x1f) | ((inst >> 6) & 0x3e0); } +static inline unsigned int get_tmrn(u32 inst) +{ + return ((inst >> 16) & 0x1f) | ((inst >> 6) & 0x3e0); +} + static inline unsigned int get_rt(u32 inst) { return (inst >> 21) & 0x1f; diff --git a/arch/powerpc/kvm/e500_emulate.c b/arch/powerpc/kvm/e500_emulate.c index ce7291c..44ac54b 100644 --- a/arch/powerpc/kvm/e500_emulate.c +++ b/arch/powerpc/kvm/e500_emulate.c @@ -15,6 +15,7 @@ #include <asm/kvm_ppc.h> #include <asm/disassemble.h> #include <asm/dbell.h> +#include <asm/reg_booke.h> #include "booke.h" #include "e500.h" @@ -22,6 +23,7 @@ #define XOP_DCBTLS 166 #define XOP_MSGSND 206 #define XOP_MSGCLR 238 +#define XOP_MFTMR 366 #define XOP_TLBIVAX 786 #define XOP_TLBSX 914 #define XOP_TLBRE 946 @@ -165,6 +167,15 @@ int kvmppc_core_emulate_op_e500(struct kvm_run *run, struct kvm_vcpu *vcpu, emulated = kvmppc_e500_emul_tlbivax(vcpu, ea); break; + case XOP_MFTMR: + /* Expose one thread per vcpu */ + if (get_tmrn(inst) == TMRN_TMCFG0) + kvmppc_set_gpr(vcpu, rt, + 1 | (1 << TMRN_TMCFG0_NATHRD_SHIFT)); + else + emulated = EMULATE_FAIL; + break; + case XOP_EHPRIV: emulated = kvmppc_e500_emul_ehpriv(run, vcpu, inst, advance); -- 1.8.3.1 -- To unsubscribe from this list: send the line "unsubscribe kvm-ppc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
