#include "hw/sysbus.h"
#include "hw/ppc/spapr.h"
#include "hw/ppc/spapr_vio.h"
+#include "hw/ppc/ppc.h"
#include "sysemu/watchdog.h"
+#include "trace.h"
+#include "exec/gdbstub.h"
//#define DEBUG_KVM
static int cap_ppc_smt;
static int cap_ppc_rma;
static int cap_spapr_tce;
+static int cap_spapr_multitce;
+static int cap_spapr_vfio;
static int cap_hior;
static int cap_one_reg;
static int cap_epr;
static int cap_ppc_watchdog;
static int cap_papr;
static int cap_htab_fd;
+static int cap_fixup_hcalls;
+
+static uint32_t debug_inst_opcode;
/* XXX We have a race condition where we actually have a level triggered
* interrupt, but the infrastructure can't expose that yet, so the guest
cap_ppc_smt = kvm_check_extension(s, KVM_CAP_PPC_SMT);
cap_ppc_rma = kvm_check_extension(s, KVM_CAP_PPC_RMA);
cap_spapr_tce = kvm_check_extension(s, KVM_CAP_SPAPR_TCE);
+ cap_spapr_multitce = kvm_check_extension(s, KVM_CAP_SPAPR_MULTITCE);
+ cap_spapr_vfio = false;
cap_one_reg = kvm_check_extension(s, KVM_CAP_ONE_REG);
cap_hior = kvm_check_extension(s, KVM_CAP_PPC_HIOR);
cap_epr = kvm_check_extension(s, KVM_CAP_PPC_EPR);
/* Note: we don't set cap_papr here, because this capability is
* only activated after this by kvmppc_set_papr() */
cap_htab_fd = kvm_check_extension(s, KVM_CAP_PPC_HTAB_FD);
+ cap_fixup_hcalls = kvm_check_extension(s, KVM_CAP_PPC_FIXUP_HCALL);
if (!cap_interrupt_level) {
fprintf(stderr, "KVM: Couldn't find level irq capability. Expect the "
CPUState *cs = CPU(cpu);
struct kvm_book3e_206_tlb_params params = {};
struct kvm_config_tlb cfg = {};
- struct kvm_enable_cap encap = {};
unsigned int entries = 0;
int ret, i;
cfg.params = (uintptr_t)¶ms;
cfg.mmu_type = KVM_MMU_FSL_BOOKE_NOHV;
- encap.cap = KVM_CAP_SW_TLB;
- encap.args[0] = (uintptr_t)&cfg;
-
- ret = kvm_vcpu_ioctl(cs, KVM_ENABLE_CAP, &encap);
+ ret = kvm_vcpu_enable_cap(cs, KVM_CAP_SW_TLB, 0, (uintptr_t)&cfg);
if (ret < 0) {
fprintf(stderr, "%s: couldn't enable KVM_CAP_SW_TLB: %s\n",
__func__, strerror(-ret));
/* Convert to QEMU form */
memset(&env->sps, 0, sizeof(env->sps));
+ /*
+ * XXX This loop should be an entry wide AND of the capabilities that
+ * the selected CPU has with the capabilities that KVM supports.
+ */
for (ik = iq = 0; ik < KVM_PPC_PAGE_SIZES_MAX_SZ; ik++) {
struct ppc_one_seg_page_size *qsps = &env->sps.sps[iq];
struct kvm_ppc_one_seg_page_size *ksps = &smmu_info.sps[ik];
}
}
env->slb_nr = smmu_info.slb_size;
- if (smmu_info.flags & KVM_PPC_1T_SEGMENTS) {
- env->mmu_model |= POWERPC_MMU_1TSEG;
- } else {
+ if (!(smmu_info.flags & KVM_PPC_1T_SEGMENTS)) {
env->mmu_model &= ~POWERPC_MMU_1TSEG;
}
}
unsigned long kvm_arch_vcpu_id(CPUState *cpu)
{
- return cpu->cpu_index;
+ return ppc_get_vcpu_dt_id(POWERPC_CPU(cpu));
+}
+
+/* e500 supports 2 h/w breakpoint and 2 watchpoint.
+ * book3s supports only 1 watchpoint, so array size
+ * of 4 is sufficient for now.
+ */
+#define MAX_HW_BKPTS 4
+
+static struct HWBreakpoint {
+ target_ulong addr;
+ int type;
+} hw_debug_points[MAX_HW_BKPTS];
+
+static CPUWatchpoint hw_watchpoint;
+
+/* Default there is no breakpoint and watchpoint supported */
+static int max_hw_breakpoint;
+static int max_hw_watchpoint;
+static int nb_hw_breakpoint;
+static int nb_hw_watchpoint;
+
+static void kvmppc_hw_debug_points_init(CPUPPCState *cenv)
+{
+ if (cenv->excp_model == POWERPC_EXCP_BOOKE) {
+ max_hw_breakpoint = 2;
+ max_hw_watchpoint = 2;
+ }
+
+ if ((max_hw_breakpoint + max_hw_watchpoint) > MAX_HW_BKPTS) {
+ fprintf(stderr, "Error initializing h/w breakpoints\n");
+ return;
+ }
}
int kvm_arch_init_vcpu(CPUState *cs)
break;
}
- return ret;
-}
+ kvm_get_one_reg(cs, KVM_REG_PPC_DEBUG_INST, &debug_inst_opcode);
+ kvmppc_hw_debug_points_init(cenv);
-void kvm_arch_reset_vcpu(CPUState *cpu)
-{
+ return ret;
}
static void kvm_sw_tlb_put(PowerPCCPU *cpu)
ret = kvm_vcpu_ioctl(cs, KVM_GET_ONE_REG, ®);
if (ret != 0) {
- fprintf(stderr, "Warning: Unable to retrieve SPR %d from KVM: %s\n",
- spr, strerror(errno));
+ trace_kvm_failed_spr_get(spr, strerror(errno));
} else {
switch (id & KVM_REG_SIZE_MASK) {
case KVM_REG_SIZE_U32:
ret = kvm_vcpu_ioctl(cs, KVM_SET_ONE_REG, ®);
if (ret != 0) {
- fprintf(stderr, "Warning: Unable to set SPR %d to KVM: %s\n",
- spr, strerror(errno));
+ trace_kvm_failed_spr_set(spr, strerror(errno));
}
}
/* Sync SLB */
#ifdef TARGET_PPC64
- for (i = 0; i < 64; i++) {
+ for (i = 0; i < ARRAY_SIZE(env->slb); i++) {
sregs.u.s.ppc64.slb[i].slbe = env->slb[i].esid;
+ if (env->slb[i].esid & SLB_ESID_V) {
+ sregs.u.s.ppc64.slb[i].slbe |= i;
+ }
sregs.u.s.ppc64.slb[i].slbv = env->slb[i].vsid;
}
#endif
}
#ifdef TARGET_PPC64
+ if (msr_ts) {
+ for (i = 0; i < ARRAY_SIZE(env->tm_gpr); i++) {
+ kvm_set_one_reg(cs, KVM_REG_PPC_TM_GPR(i), &env->tm_gpr[i]);
+ }
+ for (i = 0; i < ARRAY_SIZE(env->tm_vsr); i++) {
+ kvm_set_one_reg(cs, KVM_REG_PPC_TM_VSR(i), &env->tm_vsr[i]);
+ }
+ kvm_set_one_reg(cs, KVM_REG_PPC_TM_CR, &env->tm_cr);
+ kvm_set_one_reg(cs, KVM_REG_PPC_TM_LR, &env->tm_lr);
+ kvm_set_one_reg(cs, KVM_REG_PPC_TM_CTR, &env->tm_ctr);
+ kvm_set_one_reg(cs, KVM_REG_PPC_TM_FPSCR, &env->tm_fpscr);
+ kvm_set_one_reg(cs, KVM_REG_PPC_TM_AMR, &env->tm_amr);
+ kvm_set_one_reg(cs, KVM_REG_PPC_TM_PPR, &env->tm_ppr);
+ kvm_set_one_reg(cs, KVM_REG_PPC_TM_VRSAVE, &env->tm_vrsave);
+ kvm_set_one_reg(cs, KVM_REG_PPC_TM_VSCR, &env->tm_vscr);
+ kvm_set_one_reg(cs, KVM_REG_PPC_TM_DSCR, &env->tm_dscr);
+ kvm_set_one_reg(cs, KVM_REG_PPC_TM_TAR, &env->tm_tar);
+ }
+
if (cap_papr) {
if (kvm_put_vpa(cs) < 0) {
DPRINTF("Warning: Unable to set VPA information to KVM\n");
}
}
+
+ kvm_set_one_reg(cs, KVM_REG_PPC_TB_OFFSET, &env->tb_env->tb_offset);
#endif /* TARGET_PPC64 */
}
return ret;
}
+static void kvm_sync_excp(CPUPPCState *env, int vector, int ivor)
+{
+ env->excp_vectors[vector] = env->spr[ivor] + env->spr[SPR_BOOKE_IVPR];
+}
+
int kvm_arch_get_registers(CPUState *cs)
{
PowerPCCPU *cpu = POWERPC_CPU(cs);
if (sregs.u.e.features & KVM_SREGS_E_IVOR) {
env->spr[SPR_BOOKE_IVOR0] = sregs.u.e.ivor_low[0];
+ kvm_sync_excp(env, POWERPC_EXCP_CRITICAL, SPR_BOOKE_IVOR0);
env->spr[SPR_BOOKE_IVOR1] = sregs.u.e.ivor_low[1];
+ kvm_sync_excp(env, POWERPC_EXCP_MCHECK, SPR_BOOKE_IVOR1);
env->spr[SPR_BOOKE_IVOR2] = sregs.u.e.ivor_low[2];
+ kvm_sync_excp(env, POWERPC_EXCP_DSI, SPR_BOOKE_IVOR2);
env->spr[SPR_BOOKE_IVOR3] = sregs.u.e.ivor_low[3];
+ kvm_sync_excp(env, POWERPC_EXCP_ISI, SPR_BOOKE_IVOR3);
env->spr[SPR_BOOKE_IVOR4] = sregs.u.e.ivor_low[4];
+ kvm_sync_excp(env, POWERPC_EXCP_EXTERNAL, SPR_BOOKE_IVOR4);
env->spr[SPR_BOOKE_IVOR5] = sregs.u.e.ivor_low[5];
+ kvm_sync_excp(env, POWERPC_EXCP_ALIGN, SPR_BOOKE_IVOR5);
env->spr[SPR_BOOKE_IVOR6] = sregs.u.e.ivor_low[6];
+ kvm_sync_excp(env, POWERPC_EXCP_PROGRAM, SPR_BOOKE_IVOR6);
env->spr[SPR_BOOKE_IVOR7] = sregs.u.e.ivor_low[7];
+ kvm_sync_excp(env, POWERPC_EXCP_FPU, SPR_BOOKE_IVOR7);
env->spr[SPR_BOOKE_IVOR8] = sregs.u.e.ivor_low[8];
+ kvm_sync_excp(env, POWERPC_EXCP_SYSCALL, SPR_BOOKE_IVOR8);
env->spr[SPR_BOOKE_IVOR9] = sregs.u.e.ivor_low[9];
+ kvm_sync_excp(env, POWERPC_EXCP_APU, SPR_BOOKE_IVOR9);
env->spr[SPR_BOOKE_IVOR10] = sregs.u.e.ivor_low[10];
+ kvm_sync_excp(env, POWERPC_EXCP_DECR, SPR_BOOKE_IVOR10);
env->spr[SPR_BOOKE_IVOR11] = sregs.u.e.ivor_low[11];
+ kvm_sync_excp(env, POWERPC_EXCP_FIT, SPR_BOOKE_IVOR11);
env->spr[SPR_BOOKE_IVOR12] = sregs.u.e.ivor_low[12];
+ kvm_sync_excp(env, POWERPC_EXCP_WDT, SPR_BOOKE_IVOR12);
env->spr[SPR_BOOKE_IVOR13] = sregs.u.e.ivor_low[13];
+ kvm_sync_excp(env, POWERPC_EXCP_DTLB, SPR_BOOKE_IVOR13);
env->spr[SPR_BOOKE_IVOR14] = sregs.u.e.ivor_low[14];
+ kvm_sync_excp(env, POWERPC_EXCP_ITLB, SPR_BOOKE_IVOR14);
env->spr[SPR_BOOKE_IVOR15] = sregs.u.e.ivor_low[15];
+ kvm_sync_excp(env, POWERPC_EXCP_DEBUG, SPR_BOOKE_IVOR15);
if (sregs.u.e.features & KVM_SREGS_E_SPE) {
env->spr[SPR_BOOKE_IVOR32] = sregs.u.e.ivor_high[0];
+ kvm_sync_excp(env, POWERPC_EXCP_SPEU, SPR_BOOKE_IVOR32);
env->spr[SPR_BOOKE_IVOR33] = sregs.u.e.ivor_high[1];
+ kvm_sync_excp(env, POWERPC_EXCP_EFPDI, SPR_BOOKE_IVOR33);
env->spr[SPR_BOOKE_IVOR34] = sregs.u.e.ivor_high[2];
+ kvm_sync_excp(env, POWERPC_EXCP_EFPRI, SPR_BOOKE_IVOR34);
}
if (sregs.u.e.features & KVM_SREGS_E_PM) {
env->spr[SPR_BOOKE_IVOR35] = sregs.u.e.ivor_high[3];
+ kvm_sync_excp(env, POWERPC_EXCP_EPERFM, SPR_BOOKE_IVOR35);
}
if (sregs.u.e.features & KVM_SREGS_E_PC) {
env->spr[SPR_BOOKE_IVOR36] = sregs.u.e.ivor_high[4];
+ kvm_sync_excp(env, POWERPC_EXCP_DOORI, SPR_BOOKE_IVOR36);
env->spr[SPR_BOOKE_IVOR37] = sregs.u.e.ivor_high[5];
+ kvm_sync_excp(env, POWERPC_EXCP_DOORCI, SPR_BOOKE_IVOR37);
}
}
return ret;
}
- ppc_store_sdr1(env, sregs.u.s.sdr1);
+ if (!env->external_htab) {
+ ppc_store_sdr1(env, sregs.u.s.sdr1);
+ }
/* Sync SLB */
#ifdef TARGET_PPC64
- for (i = 0; i < 64; i++) {
- ppc_store_slb(env, sregs.u.s.ppc64.slb[i].slbe,
- sregs.u.s.ppc64.slb[i].slbv);
+ /*
+ * The packed SLB array we get from KVM_GET_SREGS only contains
+ * information about valid entries. So we flush our internal
+ * copy to get rid of stale ones, then put all valid SLB entries
+ * back in.
+ */
+ memset(env->slb, 0, sizeof(env->slb));
+ for (i = 0; i < ARRAY_SIZE(env->slb); i++) {
+ target_ulong rb = sregs.u.s.ppc64.slb[i].slbe;
+ target_ulong rs = sregs.u.s.ppc64.slb[i].slbv;
+ /*
+ * Only restore valid entries
+ */
+ if (rb & SLB_ESID_V) {
+ ppc_store_slb(env, rb, rs);
+ }
}
#endif
}
#ifdef TARGET_PPC64
+ if (msr_ts) {
+ for (i = 0; i < ARRAY_SIZE(env->tm_gpr); i++) {
+ kvm_get_one_reg(cs, KVM_REG_PPC_TM_GPR(i), &env->tm_gpr[i]);
+ }
+ for (i = 0; i < ARRAY_SIZE(env->tm_vsr); i++) {
+ kvm_get_one_reg(cs, KVM_REG_PPC_TM_VSR(i), &env->tm_vsr[i]);
+ }
+ kvm_get_one_reg(cs, KVM_REG_PPC_TM_CR, &env->tm_cr);
+ kvm_get_one_reg(cs, KVM_REG_PPC_TM_LR, &env->tm_lr);
+ kvm_get_one_reg(cs, KVM_REG_PPC_TM_CTR, &env->tm_ctr);
+ kvm_get_one_reg(cs, KVM_REG_PPC_TM_FPSCR, &env->tm_fpscr);
+ kvm_get_one_reg(cs, KVM_REG_PPC_TM_AMR, &env->tm_amr);
+ kvm_get_one_reg(cs, KVM_REG_PPC_TM_PPR, &env->tm_ppr);
+ kvm_get_one_reg(cs, KVM_REG_PPC_TM_VRSAVE, &env->tm_vrsave);
+ kvm_get_one_reg(cs, KVM_REG_PPC_TM_VSCR, &env->tm_vscr);
+ kvm_get_one_reg(cs, KVM_REG_PPC_TM_DSCR, &env->tm_dscr);
+ kvm_get_one_reg(cs, KVM_REG_PPC_TM_TAR, &env->tm_tar);
+ }
+
if (cap_papr) {
if (kvm_get_vpa(cs) < 0) {
DPRINTF("Warning: Unable to get VPA information from KVM\n");
}
}
+
+ kvm_get_one_reg(cs, KVM_REG_PPC_TB_OFFSET, &env->tb_env->tb_offset);
#endif
}
if (!(cs->interrupt_request & CPU_INTERRUPT_HARD) && (msr_ee)) {
cs->halted = 1;
- env->exception_index = EXCP_HLT;
+ cs->exception_index = EXCP_HLT;
}
return 0;
return 0;
}
+int kvm_arch_insert_sw_breakpoint(CPUState *cs, struct kvm_sw_breakpoint *bp)
+{
+ /* Mixed endian case is not handled */
+ uint32_t sc = debug_inst_opcode;
+
+ if (cpu_memory_rw_debug(cs, bp->pc, (uint8_t *)&bp->saved_insn,
+ sizeof(sc), 0) ||
+ cpu_memory_rw_debug(cs, bp->pc, (uint8_t *)&sc, sizeof(sc), 1)) {
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+int kvm_arch_remove_sw_breakpoint(CPUState *cs, struct kvm_sw_breakpoint *bp)
+{
+ uint32_t sc;
+
+ if (cpu_memory_rw_debug(cs, bp->pc, (uint8_t *)&sc, sizeof(sc), 0) ||
+ sc != debug_inst_opcode ||
+ cpu_memory_rw_debug(cs, bp->pc, (uint8_t *)&bp->saved_insn,
+ sizeof(sc), 1)) {
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int find_hw_breakpoint(target_ulong addr, int type)
+{
+ int n;
+
+ assert((nb_hw_breakpoint + nb_hw_watchpoint)
+ <= ARRAY_SIZE(hw_debug_points));
+
+ for (n = 0; n < nb_hw_breakpoint + nb_hw_watchpoint; n++) {
+ if (hw_debug_points[n].addr == addr &&
+ hw_debug_points[n].type == type) {
+ return n;
+ }
+ }
+
+ return -1;
+}
+
+static int find_hw_watchpoint(target_ulong addr, int *flag)
+{
+ int n;
+
+ n = find_hw_breakpoint(addr, GDB_WATCHPOINT_ACCESS);
+ if (n >= 0) {
+ *flag = BP_MEM_ACCESS;
+ return n;
+ }
+
+ n = find_hw_breakpoint(addr, GDB_WATCHPOINT_WRITE);
+ if (n >= 0) {
+ *flag = BP_MEM_WRITE;
+ return n;
+ }
+
+ n = find_hw_breakpoint(addr, GDB_WATCHPOINT_READ);
+ if (n >= 0) {
+ *flag = BP_MEM_READ;
+ return n;
+ }
+
+ return -1;
+}
+
+int kvm_arch_insert_hw_breakpoint(target_ulong addr,
+ target_ulong len, int type)
+{
+ if ((nb_hw_breakpoint + nb_hw_watchpoint) >= ARRAY_SIZE(hw_debug_points)) {
+ return -ENOBUFS;
+ }
+
+ hw_debug_points[nb_hw_breakpoint + nb_hw_watchpoint].addr = addr;
+ hw_debug_points[nb_hw_breakpoint + nb_hw_watchpoint].type = type;
+
+ switch (type) {
+ case GDB_BREAKPOINT_HW:
+ if (nb_hw_breakpoint >= max_hw_breakpoint) {
+ return -ENOBUFS;
+ }
+
+ if (find_hw_breakpoint(addr, type) >= 0) {
+ return -EEXIST;
+ }
+
+ nb_hw_breakpoint++;
+ break;
+
+ case GDB_WATCHPOINT_WRITE:
+ case GDB_WATCHPOINT_READ:
+ case GDB_WATCHPOINT_ACCESS:
+ if (nb_hw_watchpoint >= max_hw_watchpoint) {
+ return -ENOBUFS;
+ }
+
+ if (find_hw_breakpoint(addr, type) >= 0) {
+ return -EEXIST;
+ }
+
+ nb_hw_watchpoint++;
+ break;
+
+ default:
+ return -ENOSYS;
+ }
+
+ return 0;
+}
+
+int kvm_arch_remove_hw_breakpoint(target_ulong addr,
+ target_ulong len, int type)
+{
+ int n;
+
+ n = find_hw_breakpoint(addr, type);
+ if (n < 0) {
+ return -ENOENT;
+ }
+
+ switch (type) {
+ case GDB_BREAKPOINT_HW:
+ nb_hw_breakpoint--;
+ break;
+
+ case GDB_WATCHPOINT_WRITE:
+ case GDB_WATCHPOINT_READ:
+ case GDB_WATCHPOINT_ACCESS:
+ nb_hw_watchpoint--;
+ break;
+
+ default:
+ return -ENOSYS;
+ }
+ hw_debug_points[n] = hw_debug_points[nb_hw_breakpoint + nb_hw_watchpoint];
+
+ return 0;
+}
+
+void kvm_arch_remove_all_hw_breakpoints(void)
+{
+ nb_hw_breakpoint = nb_hw_watchpoint = 0;
+}
+
+void kvm_arch_update_guest_debug(CPUState *cs, struct kvm_guest_debug *dbg)
+{
+ int n;
+
+ /* Software Breakpoint updates */
+ if (kvm_sw_breakpoints_active(cs)) {
+ dbg->control |= KVM_GUESTDBG_ENABLE | KVM_GUESTDBG_USE_SW_BP;
+ }
+
+ assert((nb_hw_breakpoint + nb_hw_watchpoint)
+ <= ARRAY_SIZE(hw_debug_points));
+ assert((nb_hw_breakpoint + nb_hw_watchpoint) <= ARRAY_SIZE(dbg->arch.bp));
+
+ if (nb_hw_breakpoint + nb_hw_watchpoint > 0) {
+ dbg->control |= KVM_GUESTDBG_ENABLE | KVM_GUESTDBG_USE_HW_BP;
+ memset(dbg->arch.bp, 0, sizeof(dbg->arch.bp));
+ for (n = 0; n < nb_hw_breakpoint + nb_hw_watchpoint; n++) {
+ switch (hw_debug_points[n].type) {
+ case GDB_BREAKPOINT_HW:
+ dbg->arch.bp[n].type = KVMPPC_DEBUG_BREAKPOINT;
+ break;
+ case GDB_WATCHPOINT_WRITE:
+ dbg->arch.bp[n].type = KVMPPC_DEBUG_WATCH_WRITE;
+ break;
+ case GDB_WATCHPOINT_READ:
+ dbg->arch.bp[n].type = KVMPPC_DEBUG_WATCH_READ;
+ break;
+ case GDB_WATCHPOINT_ACCESS:
+ dbg->arch.bp[n].type = KVMPPC_DEBUG_WATCH_WRITE |
+ KVMPPC_DEBUG_WATCH_READ;
+ break;
+ default:
+ cpu_abort(cs, "Unsupported breakpoint type\n");
+ }
+ dbg->arch.bp[n].addr = hw_debug_points[n].addr;
+ }
+ }
+}
+
+static int kvm_handle_debug(PowerPCCPU *cpu, struct kvm_run *run)
+{
+ CPUState *cs = CPU(cpu);
+ CPUPPCState *env = &cpu->env;
+ struct kvm_debug_exit_arch *arch_info = &run->debug.arch;
+ int handle = 0;
+ int n;
+ int flag = 0;
+
+ if (cs->singlestep_enabled) {
+ handle = 1;
+ } else if (arch_info->status) {
+ if (nb_hw_breakpoint + nb_hw_watchpoint > 0) {
+ if (arch_info->status & KVMPPC_DEBUG_BREAKPOINT) {
+ n = find_hw_breakpoint(arch_info->address, GDB_BREAKPOINT_HW);
+ if (n >= 0) {
+ handle = 1;
+ }
+ } else if (arch_info->status & (KVMPPC_DEBUG_WATCH_READ |
+ KVMPPC_DEBUG_WATCH_WRITE)) {
+ n = find_hw_watchpoint(arch_info->address, &flag);
+ if (n >= 0) {
+ handle = 1;
+ cs->watchpoint_hit = &hw_watchpoint;
+ hw_watchpoint.vaddr = hw_debug_points[n].addr;
+ hw_watchpoint.flags = flag;
+ }
+ }
+ }
+ } else if (kvm_find_sw_breakpoint(cs, arch_info->address)) {
+ handle = 1;
+ } else {
+ /* QEMU is not able to handle debug exception, so inject
+ * program exception to guest;
+ * Yes program exception NOT debug exception !!
+ * When QEMU is using debug resources then debug exception must
+ * be always set. To achieve this we set MSR_DE and also set
+ * MSRP_DEP so guest cannot change MSR_DE.
+ * When emulating debug resource for guest we want guest
+ * to control MSR_DE (enable/disable debug interrupt on need).
+ * Supporting both configurations are NOT possible.
+ * So the result is that we cannot share debug resources
+ * between QEMU and Guest on BOOKE architecture.
+ * In the current design QEMU gets the priority over guest,
+ * this means that if QEMU is using debug resources then guest
+ * cannot use them;
+ * For software breakpoint QEMU uses a privileged instruction;
+ * So there cannot be any reason that we are here for guest
+ * set debug exception, only possibility is guest executed a
+ * privileged / illegal instruction and that's why we are
+ * injecting a program interrupt.
+ */
+
+ cpu_synchronize_state(cs);
+ /* env->nip is PC, so increment this by 4 to use
+ * ppc_cpu_do_interrupt(), which set srr0 = env->nip - 4.
+ */
+ env->nip += 4;
+ cs->exception_index = POWERPC_EXCP_PROGRAM;
+ env->error_code = POWERPC_EXCP_INVAL;
+ ppc_cpu_do_interrupt(cs);
+ }
+
+ return handle;
+}
+
int kvm_arch_handle_exit(CPUState *cs, struct kvm_run *run)
{
PowerPCCPU *cpu = POWERPC_CPU(cs);
#endif
case KVM_EXIT_EPR:
DPRINTF("handle epr\n");
- run->epr.epr = ldl_phys(env->mpic_iack);
+ run->epr.epr = ldl_phys(cs->as, env->mpic_iack);
ret = 0;
break;
case KVM_EXIT_WATCHDOG:
ret = 0;
break;
+ case KVM_EXIT_DEBUG:
+ DPRINTF("handle debug exception\n");
+ if (kvm_handle_debug(cpu, run)) {
+ ret = EXCP_DEBUG;
+ break;
+ }
+ /* re-enter, this exception was guest-internal */
+ ret = 0;
+ break;
+
default:
fprintf(stderr, "KVM: unknown exit reason %d\n", run->exit_reason);
ret = -1;
int kvmppc_booke_watchdog_enable(PowerPCCPU *cpu)
{
CPUState *cs = CPU(cpu);
- struct kvm_enable_cap encap = {};
int ret;
if (!kvm_enabled()) {
return -1;
}
- encap.cap = KVM_CAP_PPC_BOOKE_WATCHDOG;
- ret = kvm_vcpu_ioctl(cs, KVM_ENABLE_CAP, &encap);
+ ret = kvm_vcpu_enable_cap(cs, KVM_CAP_PPC_BOOKE_WATCHDOG, 0);
if (ret < 0) {
fprintf(stderr, "%s: couldn't enable KVM_CAP_PPC_BOOKE_WATCHDOG: %s\n",
__func__, strerror(-ret));
}
do {
- if(!fgets(line, sizeof(line), f)) {
+ if (!fgets(line, sizeof(line), f)) {
break;
}
if (!strncmp(line, field, field_len)) {
return retval;
}
+bool kvmppc_get_host_serial(char **value)
+{
+ return g_file_get_contents("/proc/device-tree/system-id", value, NULL,
+ NULL);
+}
+
+bool kvmppc_get_host_model(char **value)
+{
+ return g_file_get_contents("/proc/device-tree/model", value, NULL, NULL);
+}
+
/* Try to find a device tree node for a CPU with clock-frequency property */
static int kvmppc_find_cpu_dt(char *buf, int buf_len)
{
PowerPCCPU *cpu = ppc_env_get_cpu(env);
CPUState *cs = CPU(cpu);
- if (kvm_check_extension(cs->kvm_state, KVM_CAP_PPC_GET_PVINFO) &&
+ if (kvm_vm_check_extension(cs->kvm_state, KVM_CAP_PPC_GET_PVINFO) &&
!kvm_vm_ioctl(cs->kvm_state, KVM_PPC_GET_PVINFO, pvinfo)) {
return 0;
}
}
/*
- * Fallback to always fail hypercalls:
+ * Fallback to always fail hypercalls regardless of endianness:
*
+ * tdi 0,r0,72 (becomes b .+8 in wrong endian, nop in good endian)
* li r3, -1
- * nop
- * nop
- * nop
+ * b .+8 (becomes nop in wrong endian)
+ * bswap32(li r3, -1)
*/
- hc[0] = 0x3860ffff;
- hc[1] = 0x60000000;
- hc[2] = 0x60000000;
- hc[3] = 0x60000000;
+ hc[0] = cpu_to_be32(0x08000048);
+ hc[1] = cpu_to_be32(0x3860ffff);
+ hc[2] = cpu_to_be32(0x48000008);
+ hc[3] = cpu_to_be32(bswap32(0x3860ffff));
return 0;
}
void kvmppc_set_papr(PowerPCCPU *cpu)
{
- CPUPPCState *env = &cpu->env;
CPUState *cs = CPU(cpu);
- struct kvm_enable_cap cap = {};
int ret;
- cap.cap = KVM_CAP_PPC_PAPR;
- ret = kvm_vcpu_ioctl(cs, KVM_ENABLE_CAP, &cap);
-
+ ret = kvm_vcpu_enable_cap(cs, KVM_CAP_PPC_PAPR, 0);
if (ret) {
- cpu_abort(env, "This KVM version does not support PAPR\n");
+ cpu_abort(cs, "This KVM version does not support PAPR\n");
}
/* Update the capability flag so we sync the right information
cap_papr = 1;
}
+int kvmppc_set_compat(PowerPCCPU *cpu, uint32_t cpu_version)
+{
+ return kvm_set_one_reg(CPU(cpu), KVM_REG_PPC_ARCH_COMPAT, &cpu_version);
+}
+
void kvmppc_set_mpic_proxy(PowerPCCPU *cpu, int mpic_proxy)
{
- CPUPPCState *env = &cpu->env;
CPUState *cs = CPU(cpu);
- struct kvm_enable_cap cap = {};
int ret;
- cap.cap = KVM_CAP_PPC_EPR;
- cap.args[0] = mpic_proxy;
- ret = kvm_vcpu_ioctl(cs, KVM_ENABLE_CAP, &cap);
-
+ ret = kvm_vcpu_enable_cap(cs, KVM_CAP_PPC_EPR, 0, mpic_proxy);
if (ret && mpic_proxy) {
- cpu_abort(env, "This KVM version does not support EPR\n");
+ cpu_abort(cs, "This KVM version does not support EPR\n");
}
}
}
#ifdef TARGET_PPC64
-off_t kvmppc_alloc_rma(const char *name, MemoryRegion *sysmem)
+off_t kvmppc_alloc_rma(void **rma)
{
- void *rma;
off_t size;
int fd;
struct kvm_allocate_rma ret;
- MemoryRegion *rma_region;
/* If cap_ppc_rma == 0, contiguous RMA allocation is not supported
* if cap_ppc_rma == 1, contiguous RMA allocation is supported, but
size = MIN(ret.rma_size, 256ul << 20);
- rma = mmap(NULL, size, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0);
- if (rma == MAP_FAILED) {
+ *rma = mmap(NULL, size, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0);
+ if (*rma == MAP_FAILED) {
fprintf(stderr, "KVM: Error mapping RMA: %s\n", strerror(errno));
return -1;
};
- rma_region = g_new(MemoryRegion, 1);
- memory_region_init_ram_ptr(rma_region, NULL, name, size, rma);
- vmstate_register_ram_global(rma_region);
- memory_region_add_subregion(sysmem, 0, rma_region);
-
return size;
}
}
#endif
-void *kvmppc_create_spapr_tce(uint32_t liobn, uint32_t window_size, int *pfd)
+bool kvmppc_spapr_use_multitce(void)
+{
+ return cap_spapr_multitce;
+}
+
+void *kvmppc_create_spapr_tce(uint32_t liobn, uint32_t window_size, int *pfd,
+ bool vfio_accel)
{
struct kvm_create_spapr_tce args = {
.liobn = liobn,
* destroying the table, which the upper layers -will- do
*/
*pfd = -1;
- if (!cap_spapr_tce) {
+ if (!cap_spapr_tce || (vfio_accel && !cap_spapr_vfio)) {
return NULL;
}
return table;
}
-int kvmppc_remove_spapr_tce(void *table, int fd, uint32_t window_size)
+int kvmppc_remove_spapr_tce(void *table, int fd, uint32_t nb_table)
{
long len;
return -1;
}
- len = (window_size / SPAPR_TCE_PAGE_SIZE)*sizeof(uint64_t);
+ len = nb_table * sizeof(uint64_t);
if ((munmap(table, len) < 0) ||
(close(fd) < 0)) {
fprintf(stderr, "KVM: Unexpected error removing TCE table: %s",
uint32_t icache_size = kvmppc_read_int_cpu_dt("i-cache-size");
/* Now fix up the class with information we can query from the host */
+ pcc->pvr = mfpvr();
if (vmx != -1) {
/* Only override when we know what the host supports */
}
}
-int kvmppc_fixup_cpu(PowerPCCPU *cpu)
+bool kvmppc_has_cap_epr(void)
{
- CPUState *cs = CPU(cpu);
- int smt;
+ return cap_epr;
+}
- /* Adjust cpu index for SMT */
- smt = kvmppc_smt_threads();
- cs->cpu_index = (cs->cpu_index / smp_threads) * smt
- + (cs->cpu_index % smp_threads);
+bool kvmppc_has_cap_htab_fd(void)
+{
+ return cap_htab_fd;
+}
- return 0;
+bool kvmppc_has_cap_fixup_hcalls(void)
+{
+ return cap_fixup_hcalls;
}
-bool kvmppc_has_cap_epr(void)
+static PowerPCCPUClass *ppc_cpu_get_family_class(PowerPCCPUClass *pcc)
{
- return cap_epr;
+ ObjectClass *oc = OBJECT_CLASS(pcc);
+
+ while (oc && !object_class_is_abstract(oc)) {
+ oc = object_class_get_parent(oc);
+ }
+ assert(oc);
+
+ return POWERPC_CPU_CLASS(oc);
}
static int kvm_ppc_register_host_cpu_type(void)
};
uint32_t host_pvr = mfpvr();
PowerPCCPUClass *pvr_pcc;
+ DeviceClass *dc;
pvr_pcc = ppc_cpu_class_by_pvr(host_pvr);
+ if (pvr_pcc == NULL) {
+ pvr_pcc = ppc_cpu_class_by_pvr_mask(host_pvr);
+ }
if (pvr_pcc == NULL) {
return -1;
}
type_info.parent = object_class_get_name(OBJECT_CLASS(pvr_pcc));
type_register(&type_info);
+
+ /* Register generic family CPU class for a family */
+ pvr_pcc = ppc_cpu_get_family_class(pvr_pcc);
+ dc = DEVICE_CLASS(pvr_pcc);
+ type_info.parent = object_class_get_name(OBJECT_CLASS(pvr_pcc));
+ type_info.name = g_strdup_printf("%s-"TYPE_POWERPC_CPU, dc->desc);
+ type_register(&type_info);
+
return 0;
}
void kvm_arch_init_irq_routing(KVMState *s)
{
}
+
+struct kvm_get_htab_buf {
+ struct kvm_get_htab_header header;
+ /*
+ * We require one extra byte for read
+ */
+ target_ulong hpte[(HPTES_PER_GROUP * 2) + 1];
+};
+
+uint64_t kvmppc_hash64_read_pteg(PowerPCCPU *cpu, target_ulong pte_index)
+{
+ int htab_fd;
+ struct kvm_get_htab_fd ghf;
+ struct kvm_get_htab_buf *hpte_buf;
+
+ ghf.flags = 0;
+ ghf.start_index = pte_index;
+ htab_fd = kvm_vm_ioctl(kvm_state, KVM_PPC_GET_HTAB_FD, &ghf);
+ if (htab_fd < 0) {
+ goto error_out;
+ }
+
+ hpte_buf = g_malloc0(sizeof(*hpte_buf));
+ /*
+ * Read the hpte group
+ */
+ if (read(htab_fd, hpte_buf, sizeof(*hpte_buf)) < 0) {
+ goto out_close;
+ }
+
+ close(htab_fd);
+ return (uint64_t)(uintptr_t) hpte_buf->hpte;
+
+out_close:
+ g_free(hpte_buf);
+ close(htab_fd);
+error_out:
+ return 0;
+}
+
+void kvmppc_hash64_free_pteg(uint64_t token)
+{
+ struct kvm_get_htab_buf *htab_buf;
+
+ htab_buf = container_of((void *)(uintptr_t) token, struct kvm_get_htab_buf,
+ hpte);
+ g_free(htab_buf);
+ return;
+}
+
+void kvmppc_hash64_write_pte(CPUPPCState *env, target_ulong pte_index,
+ target_ulong pte0, target_ulong pte1)
+{
+ int htab_fd;
+ struct kvm_get_htab_fd ghf;
+ struct kvm_get_htab_buf hpte_buf;
+
+ ghf.flags = 0;
+ ghf.start_index = 0; /* Ignored */
+ htab_fd = kvm_vm_ioctl(kvm_state, KVM_PPC_GET_HTAB_FD, &ghf);
+ if (htab_fd < 0) {
+ goto error_out;
+ }
+
+ hpte_buf.header.n_valid = 1;
+ hpte_buf.header.n_invalid = 0;
+ hpte_buf.header.index = pte_index;
+ hpte_buf.hpte[0] = pte0;
+ hpte_buf.hpte[1] = pte1;
+ /*
+ * Write the hpte entry.
+ * CAUTION: write() has the warn_unused_result attribute. Hence we
+ * need to check the return value, even though we do nothing.
+ */
+ if (write(htab_fd, &hpte_buf, sizeof(hpte_buf)) < 0) {
+ goto out_close;
+ }
+
+out_close:
+ close(htab_fd);
+ return;
+
+error_out:
+ return;
+}
projects / mirror_qemu.git / blobdiff