Revision a3d0abae hw/spapr_hcall.c
| b/hw/spapr_hcall.c | ||
|---|---|---|
| 174 | 174 |
return H_SUCCESS; |
| 175 | 175 |
} |
| 176 | 176 |
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| 177 |
static target_ulong h_remove(CPUState *env, sPAPREnvironment *spapr, |
|
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target_ulong opcode, target_ulong *args) |
|
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enum {
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REMOVE_SUCCESS = 0, |
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REMOVE_NOT_FOUND = 1, |
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REMOVE_PARM = 2, |
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REMOVE_HW = 3, |
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}; |
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static target_ulong remove_hpte(CPUState *env, target_ulong ptex, |
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target_ulong avpn, |
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target_ulong flags, |
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target_ulong *vp, target_ulong *rp) |
|
| 179 | 188 |
{
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target_ulong flags = args[0]; |
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target_ulong pte_index = args[1]; |
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target_ulong avpn = args[2]; |
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| 183 | 189 |
uint8_t *hpte; |
| 184 | 190 |
target_ulong v, r, rb; |
| 185 | 191 |
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if ((pte_index * HASH_PTE_SIZE_64) & ~env->htab_mask) {
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return H_PARAMETER;
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if ((ptex * HASH_PTE_SIZE_64) & ~env->htab_mask) {
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return REMOVE_PARM;
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| 188 | 194 |
} |
| 189 | 195 |
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hpte = env->external_htab + (pte_index * HASH_PTE_SIZE_64);
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hpte = env->external_htab + (ptex * HASH_PTE_SIZE_64); |
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| 191 | 197 |
while (!lock_hpte(hpte, HPTE_V_HVLOCK)) {
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| 192 | 198 |
/* We have no real concurrency in qemu soft-emulation, so we |
| 193 | 199 |
* will never actually have a contested lock */ |
| ... | ... | |
| 202 | 208 |
((flags & H_ANDCOND) && (v & avpn) != 0)) {
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| 203 | 209 |
stq_p(hpte, v & ~HPTE_V_HVLOCK); |
| 204 | 210 |
assert(!(ldq_p(hpte) & HPTE_V_HVLOCK)); |
| 205 |
return H_NOT_FOUND;
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return REMOVE_NOT_FOUND;
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| 206 | 212 |
} |
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args[0] = v & ~HPTE_V_HVLOCK;
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args[1] = r;
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*vp = v & ~HPTE_V_HVLOCK;
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*rp = r;
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stq_p(hpte, 0); |
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rb = compute_tlbie_rb(v, r, pte_index);
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rb = compute_tlbie_rb(v, r, ptex); |
|
| 211 | 217 |
ppc_tlb_invalidate_one(env, rb); |
| 212 | 218 |
assert(!(ldq_p(hpte) & HPTE_V_HVLOCK)); |
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return REMOVE_SUCCESS; |
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} |
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static target_ulong h_remove(CPUState *env, sPAPREnvironment *spapr, |
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target_ulong opcode, target_ulong *args) |
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{
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target_ulong flags = args[0]; |
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target_ulong pte_index = args[1]; |
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target_ulong avpn = args[2]; |
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int ret; |
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ret = remove_hpte(env, pte_index, avpn, flags, |
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&args[0], &args[1]); |
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switch (ret) {
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case REMOVE_SUCCESS: |
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return H_SUCCESS; |
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case REMOVE_NOT_FOUND: |
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return H_NOT_FOUND; |
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case REMOVE_PARM: |
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return H_PARAMETER; |
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case REMOVE_HW: |
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return H_HARDWARE; |
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} |
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assert(0); |
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} |
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#define H_BULK_REMOVE_TYPE 0xc000000000000000ULL |
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#define H_BULK_REMOVE_REQUEST 0x4000000000000000ULL |
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#define H_BULK_REMOVE_RESPONSE 0x8000000000000000ULL |
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#define H_BULK_REMOVE_END 0xc000000000000000ULL |
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#define H_BULK_REMOVE_CODE 0x3000000000000000ULL |
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#define H_BULK_REMOVE_SUCCESS 0x0000000000000000ULL |
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#define H_BULK_REMOVE_NOT_FOUND 0x1000000000000000ULL |
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#define H_BULK_REMOVE_PARM 0x2000000000000000ULL |
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#define H_BULK_REMOVE_HW 0x3000000000000000ULL |
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#define H_BULK_REMOVE_RC 0x0c00000000000000ULL |
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#define H_BULK_REMOVE_FLAGS 0x0300000000000000ULL |
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#define H_BULK_REMOVE_ABSOLUTE 0x0000000000000000ULL |
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#define H_BULK_REMOVE_ANDCOND 0x0100000000000000ULL |
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#define H_BULK_REMOVE_AVPN 0x0200000000000000ULL |
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#define H_BULK_REMOVE_PTEX 0x00ffffffffffffffULL |
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#define H_BULK_REMOVE_MAX_BATCH 4 |
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|
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static target_ulong h_bulk_remove(CPUState *env, sPAPREnvironment *spapr, |
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target_ulong opcode, target_ulong *args) |
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{
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int i; |
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for (i = 0; i < H_BULK_REMOVE_MAX_BATCH; i++) {
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target_ulong *tsh = &args[i*2]; |
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target_ulong tsl = args[i*2 + 1]; |
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target_ulong v, r, ret; |
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if ((*tsh & H_BULK_REMOVE_TYPE) == H_BULK_REMOVE_END) {
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break; |
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} else if ((*tsh & H_BULK_REMOVE_TYPE) != H_BULK_REMOVE_REQUEST) {
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return H_PARAMETER; |
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} |
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|
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*tsh &= H_BULK_REMOVE_PTEX | H_BULK_REMOVE_FLAGS; |
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*tsh |= H_BULK_REMOVE_RESPONSE; |
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if ((*tsh & H_BULK_REMOVE_ANDCOND) && (*tsh & H_BULK_REMOVE_AVPN)) {
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*tsh |= H_BULK_REMOVE_PARM; |
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return H_PARAMETER; |
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} |
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|
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ret = remove_hpte(env, *tsh & H_BULK_REMOVE_PTEX, tsl, |
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(*tsh & H_BULK_REMOVE_FLAGS) >> 26, |
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&v, &r); |
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*tsh |= ret << 60; |
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switch (ret) {
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case REMOVE_SUCCESS: |
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*tsh |= (r & (HPTE_R_C | HPTE_R_R)) << 43; |
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break; |
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|
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case REMOVE_PARM: |
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return H_PARAMETER; |
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|
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case REMOVE_HW: |
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return H_HARDWARE; |
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} |
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} |
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|
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| 213 | 311 |
return H_SUCCESS; |
| 214 | 312 |
} |
| 215 | 313 |
|
| ... | ... | |
| 581 | 679 |
spapr_register_hypercall(H_REMOVE, h_remove); |
| 582 | 680 |
spapr_register_hypercall(H_PROTECT, h_protect); |
| 583 | 681 |
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/* hcall-bulk */ |
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spapr_register_hypercall(H_BULK_REMOVE, h_bulk_remove); |
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|
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| 584 | 685 |
/* hcall-dabr */ |
| 585 | 686 |
spapr_register_hypercall(H_SET_DABR, h_set_dabr); |
| 586 | 687 |
|
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