#include "sysemu.h"
#include "cpu.h"
+#include "dyngen-exec.h"
#include "qemu-char.h"
#include "sysemu.h"
#include "qemu-char.h"
-#include "exec-all.h"
-#include "exec.h"
#include "helper_regs.h"
#include "hw/spapr.h"
target_ulong pte_index = args[1];
target_ulong pteh = args[2];
target_ulong ptel = args[3];
- target_ulong porder;
- target_ulong i, pa;
+ target_ulong page_shift = 12;
+ target_ulong raddr;
+ target_ulong i;
uint8_t *hpte;
/* only handle 4k and 16M pages for now */
- porder = 12;
if (pteh & HPTE_V_LARGE) {
#if 0 /* We don't support 64k pages yet */
if ((ptel & 0xf000) == 0x1000) {
/* 64k page */
- porder = 16;
} else
#endif
if ((ptel & 0xff000) == 0) {
/* 16M page */
- porder = 24;
+ page_shift = 24;
/* lowest AVA bit must be 0 for 16M pages */
if (pteh & 0x80) {
return H_PARAMETER;
}
}
- pa = ptel & HPTE_R_RPN;
- /* FIXME: bounds check the pa? */
+ raddr = (ptel & HPTE_R_RPN) & ~((1ULL << page_shift) - 1);
- /* Check WIMG */
- if ((ptel & HPTE_R_WIMG) != HPTE_R_M) {
- return H_PARAMETER;
+ if (raddr < spapr->ram_limit) {
+ /* Regular RAM - should have WIMG=0010 */
+ if ((ptel & HPTE_R_WIMG) != HPTE_R_M) {
+ return H_PARAMETER;
+ }
+ } else {
+ /* Looks like an IO address */
+ /* FIXME: What WIMG combinations could be sensible for IO?
+ * For now we allow WIMG=010x, but are there others? */
+ /* FIXME: Should we check against registered IO addresses? */
+ if ((ptel & (HPTE_R_W | HPTE_R_I | HPTE_R_M)) != HPTE_R_I) {
+ return H_PARAMETER;
+ }
}
+
pteh &= ~0x60ULL;
if ((pte_index * HASH_PTE_SIZE_64) & ~env->htab_mask) {
return H_SUCCESS;
}
-static target_ulong h_remove(CPUState *env, sPAPREnvironment *spapr,
- target_ulong opcode, target_ulong *args)
+enum {
+ REMOVE_SUCCESS = 0,
+ REMOVE_NOT_FOUND = 1,
+ REMOVE_PARM = 2,
+ REMOVE_HW = 3,
+};
+
+static target_ulong remove_hpte(CPUState *env, target_ulong ptex,
+ target_ulong avpn,
+ target_ulong flags,
+ target_ulong *vp, target_ulong *rp)
{
- target_ulong flags = args[0];
- target_ulong pte_index = args[1];
- target_ulong avpn = args[2];
uint8_t *hpte;
target_ulong v, r, rb;
- if ((pte_index * HASH_PTE_SIZE_64) & ~env->htab_mask) {
- return H_PARAMETER;
+ if ((ptex * HASH_PTE_SIZE_64) & ~env->htab_mask) {
+ return REMOVE_PARM;
}
- hpte = env->external_htab + (pte_index * HASH_PTE_SIZE_64);
+ hpte = env->external_htab + (ptex * HASH_PTE_SIZE_64);
while (!lock_hpte(hpte, HPTE_V_HVLOCK)) {
/* We have no real concurrency in qemu soft-emulation, so we
* will never actually have a contested lock */
((flags & H_ANDCOND) && (v & avpn) != 0)) {
stq_p(hpte, v & ~HPTE_V_HVLOCK);
assert(!(ldq_p(hpte) & HPTE_V_HVLOCK));
- return H_NOT_FOUND;
+ return REMOVE_NOT_FOUND;
}
- args[0] = v & ~HPTE_V_HVLOCK;
- args[1] = r;
+ *vp = v & ~HPTE_V_HVLOCK;
+ *rp = r;
stq_p(hpte, 0);
- rb = compute_tlbie_rb(v, r, pte_index);
+ rb = compute_tlbie_rb(v, r, ptex);
ppc_tlb_invalidate_one(env, rb);
assert(!(ldq_p(hpte) & HPTE_V_HVLOCK));
+ return REMOVE_SUCCESS;
+}
+
+static target_ulong h_remove(CPUState *env, sPAPREnvironment *spapr,
+ target_ulong opcode, target_ulong *args)
+{
+ target_ulong flags = args[0];
+ target_ulong pte_index = args[1];
+ target_ulong avpn = args[2];
+ int ret;
+
+ ret = remove_hpte(env, pte_index, avpn, flags,
+ &args[0], &args[1]);
+
+ switch (ret) {
+ case REMOVE_SUCCESS:
+ return H_SUCCESS;
+
+ case REMOVE_NOT_FOUND:
+ return H_NOT_FOUND;
+
+ case REMOVE_PARM:
+ return H_PARAMETER;
+
+ case REMOVE_HW:
+ return H_HARDWARE;
+ }
+
+ assert(0);
+}
+
+#define H_BULK_REMOVE_TYPE 0xc000000000000000ULL
+#define H_BULK_REMOVE_REQUEST 0x4000000000000000ULL
+#define H_BULK_REMOVE_RESPONSE 0x8000000000000000ULL
+#define H_BULK_REMOVE_END 0xc000000000000000ULL
+#define H_BULK_REMOVE_CODE 0x3000000000000000ULL
+#define H_BULK_REMOVE_SUCCESS 0x0000000000000000ULL
+#define H_BULK_REMOVE_NOT_FOUND 0x1000000000000000ULL
+#define H_BULK_REMOVE_PARM 0x2000000000000000ULL
+#define H_BULK_REMOVE_HW 0x3000000000000000ULL
+#define H_BULK_REMOVE_RC 0x0c00000000000000ULL
+#define H_BULK_REMOVE_FLAGS 0x0300000000000000ULL
+#define H_BULK_REMOVE_ABSOLUTE 0x0000000000000000ULL
+#define H_BULK_REMOVE_ANDCOND 0x0100000000000000ULL
+#define H_BULK_REMOVE_AVPN 0x0200000000000000ULL
+#define H_BULK_REMOVE_PTEX 0x00ffffffffffffffULL
+
+#define H_BULK_REMOVE_MAX_BATCH 4
+
+static target_ulong h_bulk_remove(CPUState *env, sPAPREnvironment *spapr,
+ target_ulong opcode, target_ulong *args)
+{
+ int i;
+
+ for (i = 0; i < H_BULK_REMOVE_MAX_BATCH; i++) {
+ target_ulong *tsh = &args[i*2];
+ target_ulong tsl = args[i*2 + 1];
+ target_ulong v, r, ret;
+
+ if ((*tsh & H_BULK_REMOVE_TYPE) == H_BULK_REMOVE_END) {
+ break;
+ } else if ((*tsh & H_BULK_REMOVE_TYPE) != H_BULK_REMOVE_REQUEST) {
+ return H_PARAMETER;
+ }
+
+ *tsh &= H_BULK_REMOVE_PTEX | H_BULK_REMOVE_FLAGS;
+ *tsh |= H_BULK_REMOVE_RESPONSE;
+
+ if ((*tsh & H_BULK_REMOVE_ANDCOND) && (*tsh & H_BULK_REMOVE_AVPN)) {
+ *tsh |= H_BULK_REMOVE_PARM;
+ return H_PARAMETER;
+ }
+
+ ret = remove_hpte(env, *tsh & H_BULK_REMOVE_PTEX, tsl,
+ (*tsh & H_BULK_REMOVE_FLAGS) >> 26,
+ &v, &r);
+
+ *tsh |= ret << 60;
+
+ switch (ret) {
+ case REMOVE_SUCCESS:
+ *tsh |= (r & (HPTE_R_C | HPTE_R_R)) << 43;
+ break;
+
+ case REMOVE_PARM:
+ return H_PARAMETER;
+
+ case REMOVE_HW:
+ return H_HARDWARE;
+ }
+ }
+
return H_SUCCESS;
}
}
/* FIXME: bounds check the address */
- size = lduw_phys(vpa + 0x4);
+ size = lduw_be_phys(vpa + 0x4);
if (size < VPA_MIN_SIZE) {
return H_PARAMETER;
return H_HARDWARE;
}
- size = ldl_phys(addr + 0x4);
+ size = ldl_be_phys(addr + 0x4);
if (size < 0x8) {
return H_PARAMETER;
}
return H_HARDWARE;
}
- size = ldl_phys(addr + 0x4);
+ size = ldl_be_phys(addr + 0x4);
if (size < 48) {
return H_PARAMETER;
target_ulong opcode, target_ulong *args)
{
target_ulong rtas_r3 = args[0];
- uint32_t token = ldl_phys(rtas_r3);
- uint32_t nargs = ldl_phys(rtas_r3 + 4);
- uint32_t nret = ldl_phys(rtas_r3 + 8);
+ uint32_t token = ldl_be_phys(rtas_r3);
+ uint32_t nargs = ldl_be_phys(rtas_r3 + 4);
+ uint32_t nret = ldl_be_phys(rtas_r3 + 8);
return spapr_rtas_call(spapr, token, nargs, rtas_r3 + 12,
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];
spapr_register_hypercall(H_REMOVE, h_remove);
spapr_register_hypercall(H_PROTECT, h_protect);
+ /* hcall-bulk */
+ spapr_register_hypercall(H_BULK_REMOVE, h_bulk_remove);
+
/* hcall-dabr */
spapr_register_hypercall(H_SET_DABR, h_set_dabr);
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);
}
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