diff options
Diffstat (limited to 'target/arm/hvf/hvf.c')
| -rw-r--r-- | target/arm/hvf/hvf.c | 106 |
1 files changed, 58 insertions, 48 deletions
diff --git a/target/arm/hvf/hvf.c b/target/arm/hvf/hvf.c index 2439af6..c9cfcdc 100644 --- a/target/arm/hvf/hvf.c +++ b/target/arm/hvf/hvf.c @@ -19,10 +19,12 @@ #include "system/hw_accel.h" #include "hvf_arm.h" #include "cpregs.h" +#include "cpu-sysregs.h" #include <mach/mach_time.h> -#include "exec/address-spaces.h" +#include "system/address-spaces.h" +#include "system/memory.h" #include "hw/boards.h" #include "hw/irq.h" #include "qemu/main-loop.h" @@ -811,9 +813,9 @@ int hvf_put_registers(CPUState *cpu) static void flush_cpu_state(CPUState *cpu) { - if (cpu->accel->dirty) { + if (cpu->vcpu_dirty) { hvf_put_registers(cpu); - cpu->accel->dirty = false; + cpu->vcpu_dirty = false; } } @@ -844,14 +846,17 @@ static uint64_t hvf_get_reg(CPUState *cpu, int rt) return val; } -static void clamp_id_aa64mmfr0_parange_to_ipa_size(uint64_t *id_aa64mmfr0) +static void clamp_id_aa64mmfr0_parange_to_ipa_size(ARMISARegisters *isar) { uint32_t ipa_size = chosen_ipa_bit_size ? chosen_ipa_bit_size : hvf_arm_get_max_ipa_bit_size(); + uint64_t id_aa64mmfr0; /* Clamp down the PARange to the IPA size the kernel supports. */ uint8_t index = round_down_to_parange_index(ipa_size); - *id_aa64mmfr0 = (*id_aa64mmfr0 & ~R_ID_AA64MMFR0_PARANGE_MASK) | index; + id_aa64mmfr0 = GET_IDREG(isar, ID_AA64MMFR0); + id_aa64mmfr0 = (id_aa64mmfr0 & ~R_ID_AA64MMFR0_PARANGE_MASK) | index; + SET_IDREG(isar, ID_AA64MMFR0, id_aa64mmfr0); } static bool hvf_arm_get_host_cpu_features(ARMHostCPUFeatures *ahcf) @@ -861,16 +866,16 @@ static bool hvf_arm_get_host_cpu_features(ARMHostCPUFeatures *ahcf) int reg; uint64_t *val; } regs[] = { - { HV_SYS_REG_ID_AA64PFR0_EL1, &host_isar.id_aa64pfr0 }, - { HV_SYS_REG_ID_AA64PFR1_EL1, &host_isar.id_aa64pfr1 }, - { HV_SYS_REG_ID_AA64DFR0_EL1, &host_isar.id_aa64dfr0 }, - { HV_SYS_REG_ID_AA64DFR1_EL1, &host_isar.id_aa64dfr1 }, - { HV_SYS_REG_ID_AA64ISAR0_EL1, &host_isar.id_aa64isar0 }, - { HV_SYS_REG_ID_AA64ISAR1_EL1, &host_isar.id_aa64isar1 }, + { HV_SYS_REG_ID_AA64PFR0_EL1, &host_isar.idregs[ID_AA64PFR0_EL1_IDX] }, + { HV_SYS_REG_ID_AA64PFR1_EL1, &host_isar.idregs[ID_AA64PFR1_EL1_IDX] }, + { HV_SYS_REG_ID_AA64DFR0_EL1, &host_isar.idregs[ID_AA64DFR0_EL1_IDX] }, + { HV_SYS_REG_ID_AA64DFR1_EL1, &host_isar.idregs[ID_AA64DFR1_EL1_IDX] }, + { HV_SYS_REG_ID_AA64ISAR0_EL1, &host_isar.idregs[ID_AA64ISAR0_EL1_IDX] }, + { HV_SYS_REG_ID_AA64ISAR1_EL1, &host_isar.idregs[ID_AA64ISAR1_EL1_IDX] }, /* Add ID_AA64ISAR2_EL1 here when HVF supports it */ - { HV_SYS_REG_ID_AA64MMFR0_EL1, &host_isar.id_aa64mmfr0 }, - { HV_SYS_REG_ID_AA64MMFR1_EL1, &host_isar.id_aa64mmfr1 }, - { HV_SYS_REG_ID_AA64MMFR2_EL1, &host_isar.id_aa64mmfr2 }, + { HV_SYS_REG_ID_AA64MMFR0_EL1, &host_isar.idregs[ID_AA64MMFR0_EL1_IDX] }, + { HV_SYS_REG_ID_AA64MMFR1_EL1, &host_isar.idregs[ID_AA64MMFR1_EL1_IDX] }, + { HV_SYS_REG_ID_AA64MMFR2_EL1, &host_isar.idregs[ID_AA64MMFR2_EL1_IDX] }, /* Add ID_AA64MMFR3_EL1 here when HVF supports it */ }; hv_vcpu_t fd; @@ -878,7 +883,7 @@ static bool hvf_arm_get_host_cpu_features(ARMHostCPUFeatures *ahcf) hv_vcpu_exit_t *exit; int i; - ahcf->dtb_compatible = "arm,arm-v8"; + ahcf->dtb_compatible = "arm,armv8"; ahcf->features = (1ULL << ARM_FEATURE_V8) | (1ULL << ARM_FEATURE_NEON) | (1ULL << ARM_FEATURE_AARCH64) | @@ -897,7 +902,7 @@ static bool hvf_arm_get_host_cpu_features(ARMHostCPUFeatures *ahcf) r |= hv_vcpu_get_sys_reg(fd, HV_SYS_REG_MIDR_EL1, &ahcf->midr); r |= hv_vcpu_destroy(fd); - clamp_id_aa64mmfr0_parange_to_ipa_size(&host_isar.id_aa64mmfr0); + clamp_id_aa64mmfr0_parange_to_ipa_size(&host_isar); /* * Disable SME, which is not properly handled by QEMU hvf yet. @@ -909,7 +914,8 @@ static bool hvf_arm_get_host_cpu_features(ARMHostCPUFeatures *ahcf) * - fix any assumptions we made that SME implies SVE (since * on the M4 there is SME but not SVE) */ - host_isar.id_aa64pfr1 &= ~R_ID_AA64PFR1_SME_MASK; + SET_IDREG(&host_isar, ID_AA64PFR1, + GET_IDREG(&host_isar, ID_AA64PFR1) & ~R_ID_AA64PFR1_SME_MASK); ahcf->isar = host_isar; @@ -926,7 +932,7 @@ static bool hvf_arm_get_host_cpu_features(ARMHostCPUFeatures *ahcf) ahcf->reset_sctlr |= 0x00800000; /* Make sure we don't advertise AArch32 support for EL0/EL1 */ - if ((host_isar.id_aa64pfr0 & 0xff) != 0x11) { + if ((GET_IDREG(&host_isar, ID_AA64PFR0) & 0xff) != 0x11) { return false; } @@ -1064,12 +1070,12 @@ int hvf_arch_init_vcpu(CPUState *cpu) /* We're limited to underlying hardware caps, override internal versions */ ret = hv_vcpu_get_sys_reg(cpu->accel->fd, HV_SYS_REG_ID_AA64MMFR0_EL1, - &arm_cpu->isar.id_aa64mmfr0); + &arm_cpu->isar.idregs[ID_AA64MMFR0_EL1_IDX]); assert_hvf_ok(ret); - clamp_id_aa64mmfr0_parange_to_ipa_size(&arm_cpu->isar.id_aa64mmfr0); + clamp_id_aa64mmfr0_parange_to_ipa_size(&arm_cpu->isar); ret = hv_vcpu_set_sys_reg(cpu->accel->fd, HV_SYS_REG_ID_AA64MMFR0_EL1, - arm_cpu->isar.id_aa64mmfr0); + arm_cpu->isar.idregs[ID_AA64MMFR0_EL1_IDX]); assert_hvf_ok(ret); return 0; @@ -1082,13 +1088,13 @@ void hvf_kick_vcpu_thread(CPUState *cpu) } static void hvf_raise_exception(CPUState *cpu, uint32_t excp, - uint32_t syndrome) + uint32_t syndrome, int target_el) { ARMCPU *arm_cpu = ARM_CPU(cpu); CPUARMState *env = &arm_cpu->env; cpu->exception_index = excp; - env->exception.target_el = 1; + env->exception.target_el = target_el; env->exception.syndrome = syndrome; arm_cpu_do_interrupt(cpu); @@ -1448,7 +1454,7 @@ static int hvf_sysreg_read(CPUState *cpu, uint32_t reg, uint64_t *val) SYSREG_CRN(reg), SYSREG_CRM(reg), SYSREG_OP2(reg)); - hvf_raise_exception(cpu, EXCP_UDEF, syn_uncategorized()); + hvf_raise_exception(cpu, EXCP_UDEF, syn_uncategorized(), 1); return 1; } @@ -1758,7 +1764,7 @@ static int hvf_sysreg_write(CPUState *cpu, uint32_t reg, uint64_t val) SYSREG_CRN(reg), SYSREG_CRM(reg), SYSREG_OP2(reg)); - hvf_raise_exception(cpu, EXCP_UDEF, syn_uncategorized()); + hvf_raise_exception(cpu, EXCP_UDEF, syn_uncategorized(), 1); return 1; } @@ -1909,7 +1915,17 @@ int hvf_vcpu_exec(CPUState *cpu) flush_cpu_state(cpu); bql_unlock(); - assert_hvf_ok(hv_vcpu_run(cpu->accel->fd)); + r = hv_vcpu_run(cpu->accel->fd); + bql_lock(); + switch (r) { + case HV_SUCCESS: + break; + case HV_ILLEGAL_GUEST_STATE: + trace_hvf_illegal_guest_state(); + /* fall through */ + default: + g_assert_not_reached(); + } /* handle VMEXIT */ uint64_t exit_reason = hvf_exit->reason; @@ -1917,7 +1933,6 @@ int hvf_vcpu_exec(CPUState *cpu) uint32_t ec = syn_get_ec(syndrome); ret = 0; - bql_lock(); switch (exit_reason) { case HV_EXIT_REASON_EXCEPTION: /* This is the main one, handle below. */ @@ -1952,7 +1967,7 @@ int hvf_vcpu_exec(CPUState *cpu) if (!hvf_find_sw_breakpoint(cpu, env->pc)) { /* Re-inject into the guest */ ret = 0; - hvf_raise_exception(cpu, EXCP_BKPT, syn_aa64_bkpt(0)); + hvf_raise_exception(cpu, EXCP_BKPT, syn_aa64_bkpt(0), 1); } break; } @@ -2057,13 +2072,13 @@ int hvf_vcpu_exec(CPUState *cpu) cpu_synchronize_state(cpu); if (arm_cpu->psci_conduit == QEMU_PSCI_CONDUIT_HVC) { if (!hvf_handle_psci_call(cpu)) { - trace_hvf_unknown_hvc(env->xregs[0]); + trace_hvf_unknown_hvc(env->pc, env->xregs[0]); /* SMCCC 1.3 section 5.2 says every unknown SMCCC call returns -1 */ env->xregs[0] = -1; } } else { - trace_hvf_unknown_hvc(env->xregs[0]); - hvf_raise_exception(cpu, EXCP_UDEF, syn_uncategorized()); + trace_hvf_unknown_hvc(env->pc, env->xregs[0]); + hvf_raise_exception(cpu, EXCP_UDEF, syn_uncategorized(), 1); } break; case EC_AA64_SMC: @@ -2078,7 +2093,7 @@ int hvf_vcpu_exec(CPUState *cpu) } } else { trace_hvf_unknown_smc(env->xregs[0]); - hvf_raise_exception(cpu, EXCP_UDEF, syn_uncategorized()); + hvf_raise_exception(cpu, EXCP_UDEF, syn_uncategorized(), 1); } break; default: @@ -2277,28 +2292,23 @@ static inline bool hvf_arm_hw_debug_active(CPUState *cpu) return ((cur_hw_wps > 0) || (cur_hw_bps > 0)); } -static void hvf_arch_set_traps(void) +static void hvf_arch_set_traps(CPUState *cpu) { - CPUState *cpu; bool should_enable_traps = false; hv_return_t r = HV_SUCCESS; /* Check whether guest debugging is enabled for at least one vCPU; if it * is, enable exiting the guest on all vCPUs */ - CPU_FOREACH(cpu) { - should_enable_traps |= cpu->accel->guest_debug_enabled; - } - CPU_FOREACH(cpu) { - /* Set whether debug exceptions exit the guest */ - r = hv_vcpu_set_trap_debug_exceptions(cpu->accel->fd, - should_enable_traps); - assert_hvf_ok(r); + should_enable_traps |= cpu->accel->guest_debug_enabled; + /* Set whether debug exceptions exit the guest */ + r = hv_vcpu_set_trap_debug_exceptions(cpu->accel->fd, + should_enable_traps); + assert_hvf_ok(r); - /* Set whether accesses to debug registers exit the guest */ - r = hv_vcpu_set_trap_debug_reg_accesses(cpu->accel->fd, - should_enable_traps); - assert_hvf_ok(r); - } + /* Set whether accesses to debug registers exit the guest */ + r = hv_vcpu_set_trap_debug_reg_accesses(cpu->accel->fd, + should_enable_traps); + assert_hvf_ok(r); } void hvf_arch_update_guest_debug(CPUState *cpu) @@ -2339,7 +2349,7 @@ void hvf_arch_update_guest_debug(CPUState *cpu) deposit64(env->cp15.mdscr_el1, MDSCR_EL1_MDE_SHIFT, 1, 0); } - hvf_arch_set_traps(); + hvf_arch_set_traps(cpu); } bool hvf_arch_supports_guest_debug(void) |