diff options
Diffstat (limited to 'hw/spapr_hcall.c')
| -rw-r--r-- | hw/spapr_hcall.c | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/hw/spapr_hcall.c b/hw/spapr_hcall.c index 70f853cb1b..0c61c10bc7 100644 --- a/hw/spapr_hcall.c +++ b/hw/spapr_hcall.c @@ -463,6 +463,67 @@ static target_ulong h_rtas(CPUState *env, sPAPREnvironment *spapr, nret, rtas_r3 + 12 + 4*nargs); } +static target_ulong h_logical_load(CPUState *env, sPAPREnvironment *spapr, + target_ulong opcode, target_ulong *args) +{ + target_ulong size = args[0]; + target_ulong addr = args[1]; + + switch (size) { + case 1: + args[0] = ldub_phys(addr); + return H_SUCCESS; + case 2: + args[0] = lduw_phys(addr); + return H_SUCCESS; + case 4: + args[0] = ldl_phys(addr); + return H_SUCCESS; + case 8: + args[0] = ldq_phys(addr); + return H_SUCCESS; + } + return H_PARAMETER; +} + +static target_ulong h_logical_store(CPUState *env, sPAPREnvironment *spapr, + target_ulong opcode, target_ulong *args) +{ + target_ulong size = args[0]; + target_ulong addr = args[1]; + target_ulong val = args[2]; + + switch (size) { + case 1: + stb_phys(addr, val); + return H_SUCCESS; + case 2: + stw_phys(addr, val); + return H_SUCCESS; + case 4: + stl_phys(addr, val); + return H_SUCCESS; + case 8: + stq_phys(addr, val); + return H_SUCCESS; + } + return H_PARAMETER; +} + +static target_ulong h_logical_icbi(CPUState *env, sPAPREnvironment *spapr, + target_ulong opcode, target_ulong *args) +{ + /* Nothing to do on emulation, KVM will trap this in the kernel */ + return H_SUCCESS; +} + +static target_ulong h_logical_dcbf(CPUState *env, sPAPREnvironment *spapr, + target_ulong opcode, target_ulong *args) +{ + /* Nothing to do on emulation, KVM will trap this in the kernel */ + return H_SUCCESS; +} + static spapr_hcall_fn papr_hypercall_table[(MAX_HCALL_OPCODE / 4) + 1]; static spapr_hcall_fn kvmppc_hypercall_table[KVMPPC_HCALL_MAX - KVMPPC_HCALL_BASE + 1]; @@ -527,6 +588,18 @@ static void hypercall_init(void) spapr_register_hypercall(H_REGISTER_VPA, h_register_vpa); spapr_register_hypercall(H_CEDE, h_cede); + /* "debugger" hcalls (also used by SLOF). Note: We do -not- differenciate + * here between the "CI" and the "CACHE" variants, they will use whatever + * mapping attributes qemu is using. When using KVM, the kernel will + * enforce the attributes more strongly + */ + spapr_register_hypercall(H_LOGICAL_CI_LOAD, h_logical_load); + spapr_register_hypercall(H_LOGICAL_CI_STORE, h_logical_store); + spapr_register_hypercall(H_LOGICAL_CACHE_LOAD, h_logical_load); + spapr_register_hypercall(H_LOGICAL_CACHE_STORE, h_logical_store); + spapr_register_hypercall(H_LOGICAL_ICBI, h_logical_icbi); + spapr_register_hypercall(H_LOGICAL_DCBF, h_logical_dcbf); + /* qemu/KVM-PPC specific hcalls */ spapr_register_hypercall(KVMPPC_H_RTAS, h_rtas); } |