diff options
| author | Thomas Huth <thuth@redhat.com> | 2016-02-11 13:47:20 +0100 |
|---|---|---|
| committer | David Gibson <david@gibson.dropbear.id.au> | 2016-02-17 09:59:30 +1100 |
| commit | e49ff266f8ade3f3a21ec48d13ecf4a77b1c8572 (patch) | |
| tree | 01c00c0e1c51edc05bb93a641da1988b9fc789f5 /hw/ppc | |
| parent | af08a58f0ca338eafee855921859a8c1ace0175b (diff) | |
hw/ppc/spapr: Implement the h_set_xdabr hypercall
The H_SET_XDABR hypercall is similar to H_SET_DABR, but also sets
the extended DABR (DABRX) register.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'hw/ppc')
| -rw-r--r-- | hw/ppc/spapr_hcall.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/hw/ppc/spapr_hcall.c b/hw/ppc/spapr_hcall.c index 0004ca5885..6e9b6be58c 100644 --- a/hw/ppc/spapr_hcall.c +++ b/hw/ppc/spapr_hcall.c @@ -365,6 +365,27 @@ static target_ulong h_set_dabr(PowerPCCPU *cpu, sPAPRMachineState *spapr, return H_SUCCESS; } +static target_ulong h_set_xdabr(PowerPCCPU *cpu, sPAPRMachineState *spapr, + target_ulong opcode, target_ulong *args) +{ + target_ulong dabrx = args[1]; + + if (!has_spr(cpu, SPR_DABR) || !has_spr(cpu, SPR_DABRX)) { + return H_HARDWARE; + } + + if ((dabrx & ~0xfULL) != 0 || (dabrx & H_DABRX_HYPERVISOR) != 0 + || (dabrx & (H_DABRX_KERNEL | H_DABRX_USER)) == 0) { + return H_PARAMETER; + } + + cpu_synchronize_state(CPU(cpu)); + cpu->env.spr[SPR_DABRX] = dabrx; + cpu->env.spr[SPR_DABR] = args[0]; + + return H_SUCCESS; +} + #define FLAGS_REGISTER_VPA 0x0000200000000000ULL #define FLAGS_REGISTER_DTL 0x0000400000000000ULL #define FLAGS_REGISTER_SLBSHADOW 0x0000600000000000ULL @@ -1023,6 +1044,7 @@ static void hypercall_register_types(void) /* processor register resource access h-calls */ spapr_register_hypercall(H_SET_SPRG0, h_set_sprg0); spapr_register_hypercall(H_SET_DABR, h_set_dabr); + spapr_register_hypercall(H_SET_XDABR, h_set_xdabr); spapr_register_hypercall(H_SET_MODE, h_set_mode); /* "debugger" hcalls (also used by SLOF). Note: We do -not- differenciate |