| Message ID | 1361199632-19727-1-git-send-email-erlon.cruz@fit-tecnologia.org.br |
|---|---|
| State | New |
| Headers | show |
On Mon, Feb 18, 2013 at 12:00:32PM -0300, Erlon Cruz wrote: > From: Erlon Cruz <erlon.cruz@br.flextronics.com> > > This h_call is useful for DLPAR in future amongst other things. Given an index > it fetches the corresponding PTE stored in the htab. > > Signed-off-by: Erlon Cruz <erlon.cruz@br.flextronics.com> Acked-by: David Gibson <david@gibson.dropbear.id.au>
On 18.02.2013, at 16:00, Erlon Cruz wrote: > From: Erlon Cruz <erlon.cruz@br.flextronics.com> > > This h_call is useful for DLPAR in future amongst other things. Given an index > it fetches the corresponding PTE stored in the htab. > > Signed-off-by: Erlon Cruz <erlon.cruz@br.flextronics.com> Thanks, applied to ppc-next. Alex > --- > hw/spapr_hcall.c | 31 +++++++++++++++++++++++++++++++ > 1 file changed, 31 insertions(+) > > diff --git a/hw/spapr_hcall.c b/hw/spapr_hcall.c > index 2889742..56394a1 100644 > --- a/hw/spapr_hcall.c > +++ b/hw/spapr_hcall.c > @@ -323,6 +323,36 @@ static target_ulong h_protect(PowerPCCPU *cpu, sPAPREnvironment *spapr, > return H_SUCCESS; > } > > +static target_ulong h_read(PowerPCCPU *cpu, sPAPREnvironment *spapr, > + target_ulong opcode, target_ulong *args) > +{ > + CPUPPCState *env = &cpu->env; > + target_ulong flags = args[0]; > + target_ulong pte_index = args[1]; > + uint8_t *hpte; > + int i, ridx, n_entries = 1; > + > + if ((pte_index * HASH_PTE_SIZE_64) & ~env->htab_mask) { > + return H_PARAMETER; > + } > + > + if (flags & H_READ_4) { > + /* Clear the two low order bits */ > + pte_index &= ~(3ULL); > + n_entries = 4; > + } > + > + hpte = env->external_htab + (pte_index * HASH_PTE_SIZE_64); > + > + for (i = 0, ridx = 0; i < n_entries; i++) { > + args[ridx++] = ldq_p(hpte); > + args[ridx++] = ldq_p(hpte + (HASH_PTE_SIZE_64/2)); > + hpte += HASH_PTE_SIZE_64; > + } > + > + return H_SUCCESS; > +} > + > static target_ulong h_set_dabr(PowerPCCPU *cpu, sPAPREnvironment *spapr, > target_ulong opcode, target_ulong *args) > { > @@ -714,6 +744,7 @@ static void hypercall_register_types(void) > spapr_register_hypercall(H_ENTER, h_enter); > spapr_register_hypercall(H_REMOVE, h_remove); > spapr_register_hypercall(H_PROTECT, h_protect); > + spapr_register_hypercall(H_READ, h_read); > > /* hcall-bulk */ > spapr_register_hypercall(H_BULK_REMOVE, h_bulk_remove); > -- > 1.7.9.5 >
diff --git a/hw/spapr_hcall.c b/hw/spapr_hcall.c index 2889742..56394a1 100644 --- a/hw/spapr_hcall.c +++ b/hw/spapr_hcall.c @@ -323,6 +323,36 @@ static target_ulong h_protect(PowerPCCPU *cpu, sPAPREnvironment *spapr, return H_SUCCESS; } +static target_ulong h_read(PowerPCCPU *cpu, sPAPREnvironment *spapr, + target_ulong opcode, target_ulong *args) +{ + CPUPPCState *env = &cpu->env; + target_ulong flags = args[0]; + target_ulong pte_index = args[1]; + uint8_t *hpte; + int i, ridx, n_entries = 1; + + if ((pte_index * HASH_PTE_SIZE_64) & ~env->htab_mask) { + return H_PARAMETER; + } + + if (flags & H_READ_4) { + /* Clear the two low order bits */ + pte_index &= ~(3ULL); + n_entries = 4; + } + + hpte = env->external_htab + (pte_index * HASH_PTE_SIZE_64); + + for (i = 0, ridx = 0; i < n_entries; i++) { + args[ridx++] = ldq_p(hpte); + args[ridx++] = ldq_p(hpte + (HASH_PTE_SIZE_64/2)); + hpte += HASH_PTE_SIZE_64; + } + + return H_SUCCESS; +} + static target_ulong h_set_dabr(PowerPCCPU *cpu, sPAPREnvironment *spapr, target_ulong opcode, target_ulong *args) { @@ -714,6 +744,7 @@ static void hypercall_register_types(void) spapr_register_hypercall(H_ENTER, h_enter); spapr_register_hypercall(H_REMOVE, h_remove); spapr_register_hypercall(H_PROTECT, h_protect); + spapr_register_hypercall(H_READ, h_read); /* hcall-bulk */ spapr_register_hypercall(H_BULK_REMOVE, h_bulk_remove);