diff options
Diffstat (limited to 'qemu/target-s390x/kvm.c')
| -rw-r--r-- | qemu/target-s390x/kvm.c | 2252 |
1 files changed, 0 insertions, 2252 deletions
diff --git a/qemu/target-s390x/kvm.c b/qemu/target-s390x/kvm.c deleted file mode 100644 index e1859cae0..000000000 --- a/qemu/target-s390x/kvm.c +++ /dev/null @@ -1,2252 +0,0 @@ -/* - * QEMU S390x KVM implementation - * - * Copyright (c) 2009 Alexander Graf <agraf@suse.de> - * Copyright IBM Corp. 2012 - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * Contributions after 2012-10-29 are licensed under the terms of the - * GNU GPL, version 2 or (at your option) any later version. - * - * You should have received a copy of the GNU (Lesser) General Public - * License along with this library; if not, see <http://www.gnu.org/licenses/>. - */ - -#include "qemu/osdep.h" -#include <sys/ioctl.h> -#include <sys/mman.h> - -#include <linux/kvm.h> -#include <asm/ptrace.h> - -#include "qemu-common.h" -#include "qemu/error-report.h" -#include "qemu/timer.h" -#include "sysemu/sysemu.h" -#include "sysemu/kvm.h" -#include "hw/hw.h" -#include "cpu.h" -#include "sysemu/device_tree.h" -#include "qapi/qmp/qjson.h" -#include "exec/gdbstub.h" -#include "exec/address-spaces.h" -#include "trace.h" -#include "qapi-event.h" -#include "hw/s390x/s390-pci-inst.h" -#include "hw/s390x/s390-pci-bus.h" -#include "hw/s390x/ipl.h" -#include "hw/s390x/ebcdic.h" -#include "exec/memattrs.h" - -/* #define DEBUG_KVM */ - -#ifdef DEBUG_KVM -#define DPRINTF(fmt, ...) \ - do { fprintf(stderr, fmt, ## __VA_ARGS__); } while (0) -#else -#define DPRINTF(fmt, ...) \ - do { } while (0) -#endif - -#define kvm_vm_check_mem_attr(s, attr) \ - kvm_vm_check_attr(s, KVM_S390_VM_MEM_CTRL, attr) - -#define IPA0_DIAG 0x8300 -#define IPA0_SIGP 0xae00 -#define IPA0_B2 0xb200 -#define IPA0_B9 0xb900 -#define IPA0_EB 0xeb00 -#define IPA0_E3 0xe300 - -#define PRIV_B2_SCLP_CALL 0x20 -#define PRIV_B2_CSCH 0x30 -#define PRIV_B2_HSCH 0x31 -#define PRIV_B2_MSCH 0x32 -#define PRIV_B2_SSCH 0x33 -#define PRIV_B2_STSCH 0x34 -#define PRIV_B2_TSCH 0x35 -#define PRIV_B2_TPI 0x36 -#define PRIV_B2_SAL 0x37 -#define PRIV_B2_RSCH 0x38 -#define PRIV_B2_STCRW 0x39 -#define PRIV_B2_STCPS 0x3a -#define PRIV_B2_RCHP 0x3b -#define PRIV_B2_SCHM 0x3c -#define PRIV_B2_CHSC 0x5f -#define PRIV_B2_SIGA 0x74 -#define PRIV_B2_XSCH 0x76 - -#define PRIV_EB_SQBS 0x8a -#define PRIV_EB_PCISTB 0xd0 -#define PRIV_EB_SIC 0xd1 - -#define PRIV_B9_EQBS 0x9c -#define PRIV_B9_CLP 0xa0 -#define PRIV_B9_PCISTG 0xd0 -#define PRIV_B9_PCILG 0xd2 -#define PRIV_B9_RPCIT 0xd3 - -#define PRIV_E3_MPCIFC 0xd0 -#define PRIV_E3_STPCIFC 0xd4 - -#define DIAG_TIMEREVENT 0x288 -#define DIAG_IPL 0x308 -#define DIAG_KVM_HYPERCALL 0x500 -#define DIAG_KVM_BREAKPOINT 0x501 - -#define ICPT_INSTRUCTION 0x04 -#define ICPT_PROGRAM 0x08 -#define ICPT_EXT_INT 0x14 -#define ICPT_WAITPSW 0x1c -#define ICPT_SOFT_INTERCEPT 0x24 -#define ICPT_CPU_STOP 0x28 -#define ICPT_IO 0x40 - -#define NR_LOCAL_IRQS 32 -/* - * Needs to be big enough to contain max_cpus emergency signals - * and in addition NR_LOCAL_IRQS interrupts - */ -#define VCPU_IRQ_BUF_SIZE (sizeof(struct kvm_s390_irq) * \ - (max_cpus + NR_LOCAL_IRQS)) - -static CPUWatchpoint hw_watchpoint; -/* - * We don't use a list because this structure is also used to transmit the - * hardware breakpoints to the kernel. - */ -static struct kvm_hw_breakpoint *hw_breakpoints; -static int nb_hw_breakpoints; - -const KVMCapabilityInfo kvm_arch_required_capabilities[] = { - KVM_CAP_LAST_INFO -}; - -static int cap_sync_regs; -static int cap_async_pf; -static int cap_mem_op; -static int cap_s390_irq; - -static void *legacy_s390_alloc(size_t size, uint64_t *align); - -static int kvm_s390_query_mem_limit(KVMState *s, uint64_t *memory_limit) -{ - struct kvm_device_attr attr = { - .group = KVM_S390_VM_MEM_CTRL, - .attr = KVM_S390_VM_MEM_LIMIT_SIZE, - .addr = (uint64_t) memory_limit, - }; - - return kvm_vm_ioctl(s, KVM_GET_DEVICE_ATTR, &attr); -} - -int kvm_s390_set_mem_limit(KVMState *s, uint64_t new_limit, uint64_t *hw_limit) -{ - int rc; - - struct kvm_device_attr attr = { - .group = KVM_S390_VM_MEM_CTRL, - .attr = KVM_S390_VM_MEM_LIMIT_SIZE, - .addr = (uint64_t) &new_limit, - }; - - if (!kvm_vm_check_mem_attr(s, KVM_S390_VM_MEM_LIMIT_SIZE)) { - return 0; - } - - rc = kvm_s390_query_mem_limit(s, hw_limit); - if (rc) { - return rc; - } else if (*hw_limit < new_limit) { - return -E2BIG; - } - - return kvm_vm_ioctl(s, KVM_SET_DEVICE_ATTR, &attr); -} - -void kvm_s390_cmma_reset(void) -{ - int rc; - struct kvm_device_attr attr = { - .group = KVM_S390_VM_MEM_CTRL, - .attr = KVM_S390_VM_MEM_CLR_CMMA, - }; - - rc = kvm_vm_ioctl(kvm_state, KVM_SET_DEVICE_ATTR, &attr); - trace_kvm_clear_cmma(rc); -} - -static void kvm_s390_enable_cmma(KVMState *s) -{ - int rc; - struct kvm_device_attr attr = { - .group = KVM_S390_VM_MEM_CTRL, - .attr = KVM_S390_VM_MEM_ENABLE_CMMA, - }; - - if (!kvm_vm_check_mem_attr(s, KVM_S390_VM_MEM_ENABLE_CMMA) || - !kvm_vm_check_mem_attr(s, KVM_S390_VM_MEM_CLR_CMMA)) { - return; - } - - rc = kvm_vm_ioctl(s, KVM_SET_DEVICE_ATTR, &attr); - trace_kvm_enable_cmma(rc); -} - -static void kvm_s390_set_attr(uint64_t attr) -{ - struct kvm_device_attr attribute = { - .group = KVM_S390_VM_CRYPTO, - .attr = attr, - }; - - int ret = kvm_vm_ioctl(kvm_state, KVM_SET_DEVICE_ATTR, &attribute); - - if (ret) { - error_report("Failed to set crypto device attribute %lu: %s", - attr, strerror(-ret)); - } -} - -static void kvm_s390_init_aes_kw(void) -{ - uint64_t attr = KVM_S390_VM_CRYPTO_DISABLE_AES_KW; - - if (object_property_get_bool(OBJECT(qdev_get_machine()), "aes-key-wrap", - NULL)) { - attr = KVM_S390_VM_CRYPTO_ENABLE_AES_KW; - } - - if (kvm_vm_check_attr(kvm_state, KVM_S390_VM_CRYPTO, attr)) { - kvm_s390_set_attr(attr); - } -} - -static void kvm_s390_init_dea_kw(void) -{ - uint64_t attr = KVM_S390_VM_CRYPTO_DISABLE_DEA_KW; - - if (object_property_get_bool(OBJECT(qdev_get_machine()), "dea-key-wrap", - NULL)) { - attr = KVM_S390_VM_CRYPTO_ENABLE_DEA_KW; - } - - if (kvm_vm_check_attr(kvm_state, KVM_S390_VM_CRYPTO, attr)) { - kvm_s390_set_attr(attr); - } -} - -void kvm_s390_crypto_reset(void) -{ - kvm_s390_init_aes_kw(); - kvm_s390_init_dea_kw(); -} - -int kvm_arch_init(MachineState *ms, KVMState *s) -{ - cap_sync_regs = kvm_check_extension(s, KVM_CAP_SYNC_REGS); - cap_async_pf = kvm_check_extension(s, KVM_CAP_ASYNC_PF); - cap_mem_op = kvm_check_extension(s, KVM_CAP_S390_MEM_OP); - cap_s390_irq = kvm_check_extension(s, KVM_CAP_S390_INJECT_IRQ); - - if (!mem_path) { - kvm_s390_enable_cmma(s); - } - - if (!kvm_check_extension(s, KVM_CAP_S390_GMAP) - || !kvm_check_extension(s, KVM_CAP_S390_COW)) { - phys_mem_set_alloc(legacy_s390_alloc); - } - - kvm_vm_enable_cap(s, KVM_CAP_S390_USER_SIGP, 0); - kvm_vm_enable_cap(s, KVM_CAP_S390_VECTOR_REGISTERS, 0); - kvm_vm_enable_cap(s, KVM_CAP_S390_USER_STSI, 0); - - return 0; -} - -unsigned long kvm_arch_vcpu_id(CPUState *cpu) -{ - return cpu->cpu_index; -} - -int kvm_arch_init_vcpu(CPUState *cs) -{ - S390CPU *cpu = S390_CPU(cs); - kvm_s390_set_cpu_state(cpu, cpu->env.cpu_state); - cpu->irqstate = g_malloc0(VCPU_IRQ_BUF_SIZE); - return 0; -} - -void kvm_s390_reset_vcpu(S390CPU *cpu) -{ - CPUState *cs = CPU(cpu); - - /* The initial reset call is needed here to reset in-kernel - * vcpu data that we can't access directly from QEMU - * (i.e. with older kernels which don't support sync_regs/ONE_REG). - * Before this ioctl cpu_synchronize_state() is called in common kvm - * code (kvm-all) */ - if (kvm_vcpu_ioctl(cs, KVM_S390_INITIAL_RESET, NULL)) { - error_report("Initial CPU reset failed on CPU %i", cs->cpu_index); - } -} - -static int can_sync_regs(CPUState *cs, int regs) -{ - return cap_sync_regs && (cs->kvm_run->kvm_valid_regs & regs) == regs; -} - -int kvm_arch_put_registers(CPUState *cs, int level) -{ - S390CPU *cpu = S390_CPU(cs); - CPUS390XState *env = &cpu->env; - struct kvm_sregs sregs; - struct kvm_regs regs; - struct kvm_fpu fpu = {}; - int r; - int i; - - /* always save the PSW and the GPRS*/ - cs->kvm_run->psw_addr = env->psw.addr; - cs->kvm_run->psw_mask = env->psw.mask; - - if (can_sync_regs(cs, KVM_SYNC_GPRS)) { - for (i = 0; i < 16; i++) { - cs->kvm_run->s.regs.gprs[i] = env->regs[i]; - cs->kvm_run->kvm_dirty_regs |= KVM_SYNC_GPRS; - } - } else { - for (i = 0; i < 16; i++) { - regs.gprs[i] = env->regs[i]; - } - r = kvm_vcpu_ioctl(cs, KVM_SET_REGS, ®s); - if (r < 0) { - return r; - } - } - - if (can_sync_regs(cs, KVM_SYNC_VRS)) { - for (i = 0; i < 32; i++) { - cs->kvm_run->s.regs.vrs[i][0] = env->vregs[i][0].ll; - cs->kvm_run->s.regs.vrs[i][1] = env->vregs[i][1].ll; - } - cs->kvm_run->s.regs.fpc = env->fpc; - cs->kvm_run->kvm_dirty_regs |= KVM_SYNC_VRS; - } else if (can_sync_regs(cs, KVM_SYNC_FPRS)) { - for (i = 0; i < 16; i++) { - cs->kvm_run->s.regs.fprs[i] = get_freg(env, i)->ll; - } - cs->kvm_run->s.regs.fpc = env->fpc; - cs->kvm_run->kvm_dirty_regs |= KVM_SYNC_FPRS; - } else { - /* Floating point */ - for (i = 0; i < 16; i++) { - fpu.fprs[i] = get_freg(env, i)->ll; - } - fpu.fpc = env->fpc; - - r = kvm_vcpu_ioctl(cs, KVM_SET_FPU, &fpu); - if (r < 0) { - return r; - } - } - - /* Do we need to save more than that? */ - if (level == KVM_PUT_RUNTIME_STATE) { - return 0; - } - - if (can_sync_regs(cs, KVM_SYNC_ARCH0)) { - cs->kvm_run->s.regs.cputm = env->cputm; - cs->kvm_run->s.regs.ckc = env->ckc; - cs->kvm_run->s.regs.todpr = env->todpr; - cs->kvm_run->s.regs.gbea = env->gbea; - cs->kvm_run->s.regs.pp = env->pp; - cs->kvm_run->kvm_dirty_regs |= KVM_SYNC_ARCH0; - } else { - /* - * These ONE_REGS are not protected by a capability. As they are only - * necessary for migration we just trace a possible error, but don't - * return with an error return code. - */ - kvm_set_one_reg(cs, KVM_REG_S390_CPU_TIMER, &env->cputm); - kvm_set_one_reg(cs, KVM_REG_S390_CLOCK_COMP, &env->ckc); - kvm_set_one_reg(cs, KVM_REG_S390_TODPR, &env->todpr); - kvm_set_one_reg(cs, KVM_REG_S390_GBEA, &env->gbea); - kvm_set_one_reg(cs, KVM_REG_S390_PP, &env->pp); - } - - /* pfault parameters */ - if (can_sync_regs(cs, KVM_SYNC_PFAULT)) { - cs->kvm_run->s.regs.pft = env->pfault_token; - cs->kvm_run->s.regs.pfs = env->pfault_select; - cs->kvm_run->s.regs.pfc = env->pfault_compare; - cs->kvm_run->kvm_dirty_regs |= KVM_SYNC_PFAULT; - } else if (cap_async_pf) { - r = kvm_set_one_reg(cs, KVM_REG_S390_PFTOKEN, &env->pfault_token); - if (r < 0) { - return r; - } - r = kvm_set_one_reg(cs, KVM_REG_S390_PFCOMPARE, &env->pfault_compare); - if (r < 0) { - return r; - } - r = kvm_set_one_reg(cs, KVM_REG_S390_PFSELECT, &env->pfault_select); - if (r < 0) { - return r; - } - } - - /* access registers and control registers*/ - if (can_sync_regs(cs, KVM_SYNC_ACRS | KVM_SYNC_CRS)) { - for (i = 0; i < 16; i++) { - cs->kvm_run->s.regs.acrs[i] = env->aregs[i]; - cs->kvm_run->s.regs.crs[i] = env->cregs[i]; - } - cs->kvm_run->kvm_dirty_regs |= KVM_SYNC_ACRS; - cs->kvm_run->kvm_dirty_regs |= KVM_SYNC_CRS; - } else { - for (i = 0; i < 16; i++) { - sregs.acrs[i] = env->aregs[i]; - sregs.crs[i] = env->cregs[i]; - } - r = kvm_vcpu_ioctl(cs, KVM_SET_SREGS, &sregs); - if (r < 0) { - return r; - } - } - - /* Finally the prefix */ - if (can_sync_regs(cs, KVM_SYNC_PREFIX)) { - cs->kvm_run->s.regs.prefix = env->psa; - cs->kvm_run->kvm_dirty_regs |= KVM_SYNC_PREFIX; - } else { - /* prefix is only supported via sync regs */ - } - return 0; -} - -int kvm_arch_get_registers(CPUState *cs) -{ - S390CPU *cpu = S390_CPU(cs); - CPUS390XState *env = &cpu->env; - struct kvm_sregs sregs; - struct kvm_regs regs; - struct kvm_fpu fpu; - int i, r; - - /* get the PSW */ - env->psw.addr = cs->kvm_run->psw_addr; - env->psw.mask = cs->kvm_run->psw_mask; - - /* the GPRS */ - if (can_sync_regs(cs, KVM_SYNC_GPRS)) { - for (i = 0; i < 16; i++) { - env->regs[i] = cs->kvm_run->s.regs.gprs[i]; - } - } else { - r = kvm_vcpu_ioctl(cs, KVM_GET_REGS, ®s); - if (r < 0) { - return r; - } - for (i = 0; i < 16; i++) { - env->regs[i] = regs.gprs[i]; - } - } - - /* The ACRS and CRS */ - if (can_sync_regs(cs, KVM_SYNC_ACRS | KVM_SYNC_CRS)) { - for (i = 0; i < 16; i++) { - env->aregs[i] = cs->kvm_run->s.regs.acrs[i]; - env->cregs[i] = cs->kvm_run->s.regs.crs[i]; - } - } else { - r = kvm_vcpu_ioctl(cs, KVM_GET_SREGS, &sregs); - if (r < 0) { - return r; - } - for (i = 0; i < 16; i++) { - env->aregs[i] = sregs.acrs[i]; - env->cregs[i] = sregs.crs[i]; - } - } - - /* Floating point and vector registers */ - if (can_sync_regs(cs, KVM_SYNC_VRS)) { - for (i = 0; i < 32; i++) { - env->vregs[i][0].ll = cs->kvm_run->s.regs.vrs[i][0]; - env->vregs[i][1].ll = cs->kvm_run->s.regs.vrs[i][1]; - } - env->fpc = cs->kvm_run->s.regs.fpc; - } else if (can_sync_regs(cs, KVM_SYNC_FPRS)) { - for (i = 0; i < 16; i++) { - get_freg(env, i)->ll = cs->kvm_run->s.regs.fprs[i]; - } - env->fpc = cs->kvm_run->s.regs.fpc; - } else { - r = kvm_vcpu_ioctl(cs, KVM_GET_FPU, &fpu); - if (r < 0) { - return r; - } - for (i = 0; i < 16; i++) { - get_freg(env, i)->ll = fpu.fprs[i]; - } - env->fpc = fpu.fpc; - } - - /* The prefix */ - if (can_sync_regs(cs, KVM_SYNC_PREFIX)) { - env->psa = cs->kvm_run->s.regs.prefix; - } - - if (can_sync_regs(cs, KVM_SYNC_ARCH0)) { - env->cputm = cs->kvm_run->s.regs.cputm; - env->ckc = cs->kvm_run->s.regs.ckc; - env->todpr = cs->kvm_run->s.regs.todpr; - env->gbea = cs->kvm_run->s.regs.gbea; - env->pp = cs->kvm_run->s.regs.pp; - } else { - /* - * These ONE_REGS are not protected by a capability. As they are only - * necessary for migration we just trace a possible error, but don't - * return with an error return code. - */ - kvm_get_one_reg(cs, KVM_REG_S390_CPU_TIMER, &env->cputm); - kvm_get_one_reg(cs, KVM_REG_S390_CLOCK_COMP, &env->ckc); - kvm_get_one_reg(cs, KVM_REG_S390_TODPR, &env->todpr); - kvm_get_one_reg(cs, KVM_REG_S390_GBEA, &env->gbea); - kvm_get_one_reg(cs, KVM_REG_S390_PP, &env->pp); - } - - /* pfault parameters */ - if (can_sync_regs(cs, KVM_SYNC_PFAULT)) { - env->pfault_token = cs->kvm_run->s.regs.pft; - env->pfault_select = cs->kvm_run->s.regs.pfs; - env->pfault_compare = cs->kvm_run->s.regs.pfc; - } else if (cap_async_pf) { - r = kvm_get_one_reg(cs, KVM_REG_S390_PFTOKEN, &env->pfault_token); - if (r < 0) { - return r; - } - r = kvm_get_one_reg(cs, KVM_REG_S390_PFCOMPARE, &env->pfault_compare); - if (r < 0) { - return r; - } - r = kvm_get_one_reg(cs, KVM_REG_S390_PFSELECT, &env->pfault_select); - if (r < 0) { - return r; - } - } - - return 0; -} - -int kvm_s390_get_clock(uint8_t *tod_high, uint64_t *tod_low) -{ - int r; - struct kvm_device_attr attr = { - .group = KVM_S390_VM_TOD, - .attr = KVM_S390_VM_TOD_LOW, - .addr = (uint64_t)tod_low, - }; - - r = kvm_vm_ioctl(kvm_state, KVM_GET_DEVICE_ATTR, &attr); - if (r) { - return r; - } - - attr.attr = KVM_S390_VM_TOD_HIGH; - attr.addr = (uint64_t)tod_high; - return kvm_vm_ioctl(kvm_state, KVM_GET_DEVICE_ATTR, &attr); -} - -int kvm_s390_set_clock(uint8_t *tod_high, uint64_t *tod_low) -{ - int r; - - struct kvm_device_attr attr = { - .group = KVM_S390_VM_TOD, - .attr = KVM_S390_VM_TOD_LOW, - .addr = (uint64_t)tod_low, - }; - - r = kvm_vm_ioctl(kvm_state, KVM_SET_DEVICE_ATTR, &attr); - if (r) { - return r; - } - - attr.attr = KVM_S390_VM_TOD_HIGH; - attr.addr = (uint64_t)tod_high; - return kvm_vm_ioctl(kvm_state, KVM_SET_DEVICE_ATTR, &attr); -} - -/** - * kvm_s390_mem_op: - * @addr: the logical start address in guest memory - * @ar: the access register number - * @hostbuf: buffer in host memory. NULL = do only checks w/o copying - * @len: length that should be transferred - * @is_write: true = write, false = read - * Returns: 0 on success, non-zero if an exception or error occurred - * - * Use KVM ioctl to read/write from/to guest memory. An access exception - * is injected into the vCPU in case of translation errors. - */ -int kvm_s390_mem_op(S390CPU *cpu, vaddr addr, uint8_t ar, void *hostbuf, - int len, bool is_write) -{ - struct kvm_s390_mem_op mem_op = { - .gaddr = addr, - .flags = KVM_S390_MEMOP_F_INJECT_EXCEPTION, - .size = len, - .op = is_write ? KVM_S390_MEMOP_LOGICAL_WRITE - : KVM_S390_MEMOP_LOGICAL_READ, - .buf = (uint64_t)hostbuf, - .ar = ar, - }; - int ret; - - if (!cap_mem_op) { - return -ENOSYS; - } - if (!hostbuf) { - mem_op.flags |= KVM_S390_MEMOP_F_CHECK_ONLY; - } - - ret = kvm_vcpu_ioctl(CPU(cpu), KVM_S390_MEM_OP, &mem_op); - if (ret < 0) { - error_printf("KVM_S390_MEM_OP failed: %s\n", strerror(-ret)); - } - return ret; -} - -/* - * Legacy layout for s390: - * Older S390 KVM requires the topmost vma of the RAM to be - * smaller than an system defined value, which is at least 256GB. - * Larger systems have larger values. We put the guest between - * the end of data segment (system break) and this value. We - * use 32GB as a base to have enough room for the system break - * to grow. We also have to use MAP parameters that avoid - * read-only mapping of guest pages. - */ -static void *legacy_s390_alloc(size_t size, uint64_t *align) -{ - void *mem; - - mem = mmap((void *) 0x800000000ULL, size, - PROT_EXEC|PROT_READ|PROT_WRITE, - MAP_SHARED | MAP_ANONYMOUS | MAP_FIXED, -1, 0); - return mem == MAP_FAILED ? NULL : mem; -} - -/* DIAG 501 is used for sw breakpoints */ -static const uint8_t diag_501[] = {0x83, 0x24, 0x05, 0x01}; - -int kvm_arch_insert_sw_breakpoint(CPUState *cs, struct kvm_sw_breakpoint *bp) -{ - - if (cpu_memory_rw_debug(cs, bp->pc, (uint8_t *)&bp->saved_insn, - sizeof(diag_501), 0) || - cpu_memory_rw_debug(cs, bp->pc, (uint8_t *)diag_501, - sizeof(diag_501), 1)) { - return -EINVAL; - } - return 0; -} - -int kvm_arch_remove_sw_breakpoint(CPUState *cs, struct kvm_sw_breakpoint *bp) -{ - uint8_t t[sizeof(diag_501)]; - - if (cpu_memory_rw_debug(cs, bp->pc, t, sizeof(diag_501), 0)) { - return -EINVAL; - } else if (memcmp(t, diag_501, sizeof(diag_501))) { - return -EINVAL; - } else if (cpu_memory_rw_debug(cs, bp->pc, (uint8_t *)&bp->saved_insn, - sizeof(diag_501), 1)) { - return -EINVAL; - } - - return 0; -} - -static struct kvm_hw_breakpoint *find_hw_breakpoint(target_ulong addr, - int len, int type) -{ - int n; - - for (n = 0; n < nb_hw_breakpoints; n++) { - if (hw_breakpoints[n].addr == addr && hw_breakpoints[n].type == type && - (hw_breakpoints[n].len == len || len == -1)) { - return &hw_breakpoints[n]; - } - } - - return NULL; -} - -static int insert_hw_breakpoint(target_ulong addr, int len, int type) -{ - int size; - - if (find_hw_breakpoint(addr, len, type)) { - return -EEXIST; - } - - size = (nb_hw_breakpoints + 1) * sizeof(struct kvm_hw_breakpoint); - - if (!hw_breakpoints) { - nb_hw_breakpoints = 0; - hw_breakpoints = (struct kvm_hw_breakpoint *)g_try_malloc(size); - } else { - hw_breakpoints = - (struct kvm_hw_breakpoint *)g_try_realloc(hw_breakpoints, size); - } - - if (!hw_breakpoints) { - nb_hw_breakpoints = 0; - return -ENOMEM; - } - - hw_breakpoints[nb_hw_breakpoints].addr = addr; - hw_breakpoints[nb_hw_breakpoints].len = len; - hw_breakpoints[nb_hw_breakpoints].type = type; - - nb_hw_breakpoints++; - - return 0; -} - -int kvm_arch_insert_hw_breakpoint(target_ulong addr, - target_ulong len, int type) -{ - switch (type) { - case GDB_BREAKPOINT_HW: - type = KVM_HW_BP; - break; - case GDB_WATCHPOINT_WRITE: - if (len < 1) { - return -EINVAL; - } - type = KVM_HW_WP_WRITE; - break; - default: - return -ENOSYS; - } - return insert_hw_breakpoint(addr, len, type); -} - -int kvm_arch_remove_hw_breakpoint(target_ulong addr, - target_ulong len, int type) -{ - int size; - struct kvm_hw_breakpoint *bp = find_hw_breakpoint(addr, len, type); - - if (bp == NULL) { - return -ENOENT; - } - - nb_hw_breakpoints--; - if (nb_hw_breakpoints > 0) { - /* - * In order to trim the array, move the last element to the position to - * be removed - if necessary. - */ - if (bp != &hw_breakpoints[nb_hw_breakpoints]) { - *bp = hw_breakpoints[nb_hw_breakpoints]; - } - size = nb_hw_breakpoints * sizeof(struct kvm_hw_breakpoint); - hw_breakpoints = - (struct kvm_hw_breakpoint *)g_realloc(hw_breakpoints, size); - } else { - g_free(hw_breakpoints); - hw_breakpoints = NULL; - } - - return 0; -} - -void kvm_arch_remove_all_hw_breakpoints(void) -{ - nb_hw_breakpoints = 0; - g_free(hw_breakpoints); - hw_breakpoints = NULL; -} - -void kvm_arch_update_guest_debug(CPUState *cpu, struct kvm_guest_debug *dbg) -{ - int i; - - if (nb_hw_breakpoints > 0) { - dbg->arch.nr_hw_bp = nb_hw_breakpoints; - dbg->arch.hw_bp = hw_breakpoints; - - for (i = 0; i < nb_hw_breakpoints; ++i) { - hw_breakpoints[i].phys_addr = s390_cpu_get_phys_addr_debug(cpu, - hw_breakpoints[i].addr); - } - dbg->control |= KVM_GUESTDBG_ENABLE | KVM_GUESTDBG_USE_HW_BP; - } else { - dbg->arch.nr_hw_bp = 0; - dbg->arch.hw_bp = NULL; - } -} - -void kvm_arch_pre_run(CPUState *cpu, struct kvm_run *run) -{ -} - -MemTxAttrs kvm_arch_post_run(CPUState *cs, struct kvm_run *run) -{ - return MEMTXATTRS_UNSPECIFIED; -} - -int kvm_arch_process_async_events(CPUState *cs) -{ - return cs->halted; -} - -static int s390_kvm_irq_to_interrupt(struct kvm_s390_irq *irq, - struct kvm_s390_interrupt *interrupt) -{ - int r = 0; - - interrupt->type = irq->type; - switch (irq->type) { - case KVM_S390_INT_VIRTIO: - interrupt->parm = irq->u.ext.ext_params; - /* fall through */ - case KVM_S390_INT_PFAULT_INIT: - case KVM_S390_INT_PFAULT_DONE: - interrupt->parm64 = irq->u.ext.ext_params2; - break; - case KVM_S390_PROGRAM_INT: - interrupt->parm = irq->u.pgm.code; - break; - case KVM_S390_SIGP_SET_PREFIX: - interrupt->parm = irq->u.prefix.address; - break; - case KVM_S390_INT_SERVICE: - interrupt->parm = irq->u.ext.ext_params; - break; - case KVM_S390_MCHK: - interrupt->parm = irq->u.mchk.cr14; - interrupt->parm64 = irq->u.mchk.mcic; - break; - case KVM_S390_INT_EXTERNAL_CALL: - interrupt->parm = irq->u.extcall.code; - break; - case KVM_S390_INT_EMERGENCY: - interrupt->parm = irq->u.emerg.code; - break; - case KVM_S390_SIGP_STOP: - case KVM_S390_RESTART: - break; /* These types have no parameters */ - case KVM_S390_INT_IO_MIN...KVM_S390_INT_IO_MAX: - interrupt->parm = irq->u.io.subchannel_id << 16; - interrupt->parm |= irq->u.io.subchannel_nr; - interrupt->parm64 = (uint64_t)irq->u.io.io_int_parm << 32; - interrupt->parm64 |= irq->u.io.io_int_word; - break; - default: - r = -EINVAL; - break; - } - return r; -} - -static void inject_vcpu_irq_legacy(CPUState *cs, struct kvm_s390_irq *irq) -{ - struct kvm_s390_interrupt kvmint = {}; - int r; - - r = s390_kvm_irq_to_interrupt(irq, &kvmint); - if (r < 0) { - fprintf(stderr, "%s called with bogus interrupt\n", __func__); - exit(1); - } - - r = kvm_vcpu_ioctl(cs, KVM_S390_INTERRUPT, &kvmint); - if (r < 0) { - fprintf(stderr, "KVM failed to inject interrupt\n"); - exit(1); - } -} - -void kvm_s390_vcpu_interrupt(S390CPU *cpu, struct kvm_s390_irq *irq) -{ - CPUState *cs = CPU(cpu); - int r; - - if (cap_s390_irq) { - r = kvm_vcpu_ioctl(cs, KVM_S390_IRQ, irq); - if (!r) { - return; - } - error_report("KVM failed to inject interrupt %llx", irq->type); - exit(1); - } - - inject_vcpu_irq_legacy(cs, irq); -} - -static void __kvm_s390_floating_interrupt(struct kvm_s390_irq *irq) -{ - struct kvm_s390_interrupt kvmint = {}; - int r; - - r = s390_kvm_irq_to_interrupt(irq, &kvmint); - if (r < 0) { - fprintf(stderr, "%s called with bogus interrupt\n", __func__); - exit(1); - } - - r = kvm_vm_ioctl(kvm_state, KVM_S390_INTERRUPT, &kvmint); - if (r < 0) { - fprintf(stderr, "KVM failed to inject interrupt\n"); - exit(1); - } -} - -void kvm_s390_floating_interrupt(struct kvm_s390_irq *irq) -{ - static bool use_flic = true; - int r; - - if (use_flic) { - r = kvm_s390_inject_flic(irq); - if (r == -ENOSYS) { - use_flic = false; - } - if (!r) { - return; - } - } - __kvm_s390_floating_interrupt(irq); -} - -void kvm_s390_service_interrupt(uint32_t parm) -{ - struct kvm_s390_irq irq = { - .type = KVM_S390_INT_SERVICE, - .u.ext.ext_params = parm, - }; - - kvm_s390_floating_interrupt(&irq); -} - -static void enter_pgmcheck(S390CPU *cpu, uint16_t code) -{ - struct kvm_s390_irq irq = { - .type = KVM_S390_PROGRAM_INT, - .u.pgm.code = code, - }; - - kvm_s390_vcpu_interrupt(cpu, &irq); -} - -void kvm_s390_access_exception(S390CPU *cpu, uint16_t code, uint64_t te_code) -{ - struct kvm_s390_irq irq = { - .type = KVM_S390_PROGRAM_INT, - .u.pgm.code = code, - .u.pgm.trans_exc_code = te_code, - .u.pgm.exc_access_id = te_code & 3, - }; - - kvm_s390_vcpu_interrupt(cpu, &irq); -} - -static int kvm_sclp_service_call(S390CPU *cpu, struct kvm_run *run, - uint16_t ipbh0) -{ - CPUS390XState *env = &cpu->env; - uint64_t sccb; - uint32_t code; - int r = 0; - - cpu_synchronize_state(CPU(cpu)); - sccb = env->regs[ipbh0 & 0xf]; - code = env->regs[(ipbh0 & 0xf0) >> 4]; - - r = sclp_service_call(env, sccb, code); - if (r < 0) { - enter_pgmcheck(cpu, -r); - } else { - setcc(cpu, r); - } - - return 0; -} - -static int handle_b2(S390CPU *cpu, struct kvm_run *run, uint8_t ipa1) -{ - CPUS390XState *env = &cpu->env; - int rc = 0; - uint16_t ipbh0 = (run->s390_sieic.ipb & 0xffff0000) >> 16; - - cpu_synchronize_state(CPU(cpu)); - - switch (ipa1) { - case PRIV_B2_XSCH: - ioinst_handle_xsch(cpu, env->regs[1]); - break; - case PRIV_B2_CSCH: - ioinst_handle_csch(cpu, env->regs[1]); - break; - case PRIV_B2_HSCH: - ioinst_handle_hsch(cpu, env->regs[1]); - break; - case PRIV_B2_MSCH: - ioinst_handle_msch(cpu, env->regs[1], run->s390_sieic.ipb); - break; - case PRIV_B2_SSCH: - ioinst_handle_ssch(cpu, env->regs[1], run->s390_sieic.ipb); - break; - case PRIV_B2_STCRW: - ioinst_handle_stcrw(cpu, run->s390_sieic.ipb); - break; - case PRIV_B2_STSCH: - ioinst_handle_stsch(cpu, env->regs[1], run->s390_sieic.ipb); - break; - case PRIV_B2_TSCH: - /* We should only get tsch via KVM_EXIT_S390_TSCH. */ - fprintf(stderr, "Spurious tsch intercept\n"); - break; - case PRIV_B2_CHSC: - ioinst_handle_chsc(cpu, run->s390_sieic.ipb); - break; - case PRIV_B2_TPI: - /* This should have been handled by kvm already. */ - fprintf(stderr, "Spurious tpi intercept\n"); - break; - case PRIV_B2_SCHM: - ioinst_handle_schm(cpu, env->regs[1], env->regs[2], - run->s390_sieic.ipb); - break; - case PRIV_B2_RSCH: - ioinst_handle_rsch(cpu, env->regs[1]); - break; - case PRIV_B2_RCHP: - ioinst_handle_rchp(cpu, env->regs[1]); - break; - case PRIV_B2_STCPS: - /* We do not provide this instruction, it is suppressed. */ - break; - case PRIV_B2_SAL: - ioinst_handle_sal(cpu, env->regs[1]); - break; - case PRIV_B2_SIGA: - /* Not provided, set CC = 3 for subchannel not operational */ - setcc(cpu, 3); - break; - case PRIV_B2_SCLP_CALL: - rc = kvm_sclp_service_call(cpu, run, ipbh0); - break; - default: - rc = -1; - DPRINTF("KVM: unhandled PRIV: 0xb2%x\n", ipa1); - break; - } - - return rc; -} - -static uint64_t get_base_disp_rxy(S390CPU *cpu, struct kvm_run *run, - uint8_t *ar) -{ - CPUS390XState *env = &cpu->env; - uint32_t x2 = (run->s390_sieic.ipa & 0x000f); - uint32_t base2 = run->s390_sieic.ipb >> 28; - uint32_t disp2 = ((run->s390_sieic.ipb & 0x0fff0000) >> 16) + - ((run->s390_sieic.ipb & 0xff00) << 4); - - if (disp2 & 0x80000) { - disp2 += 0xfff00000; - } - if (ar) { - *ar = base2; - } - - return (base2 ? env->regs[base2] : 0) + - (x2 ? env->regs[x2] : 0) + (long)(int)disp2; -} - -static uint64_t get_base_disp_rsy(S390CPU *cpu, struct kvm_run *run, - uint8_t *ar) -{ - CPUS390XState *env = &cpu->env; - uint32_t base2 = run->s390_sieic.ipb >> 28; - uint32_t disp2 = ((run->s390_sieic.ipb & 0x0fff0000) >> 16) + - ((run->s390_sieic.ipb & 0xff00) << 4); - - if (disp2 & 0x80000) { - disp2 += 0xfff00000; - } - if (ar) { - *ar = base2; - } - - return (base2 ? env->regs[base2] : 0) + (long)(int)disp2; -} - -static int kvm_clp_service_call(S390CPU *cpu, struct kvm_run *run) -{ - uint8_t r2 = (run->s390_sieic.ipb & 0x000f0000) >> 16; - - return clp_service_call(cpu, r2); -} - -static int kvm_pcilg_service_call(S390CPU *cpu, struct kvm_run *run) -{ - uint8_t r1 = (run->s390_sieic.ipb & 0x00f00000) >> 20; - uint8_t r2 = (run->s390_sieic.ipb & 0x000f0000) >> 16; - - return pcilg_service_call(cpu, r1, r2); -} - -static int kvm_pcistg_service_call(S390CPU *cpu, struct kvm_run *run) -{ - uint8_t r1 = (run->s390_sieic.ipb & 0x00f00000) >> 20; - uint8_t r2 = (run->s390_sieic.ipb & 0x000f0000) >> 16; - - return pcistg_service_call(cpu, r1, r2); -} - -static int kvm_stpcifc_service_call(S390CPU *cpu, struct kvm_run *run) -{ - uint8_t r1 = (run->s390_sieic.ipa & 0x00f0) >> 4; - uint64_t fiba; - uint8_t ar; - - cpu_synchronize_state(CPU(cpu)); - fiba = get_base_disp_rxy(cpu, run, &ar); - - return stpcifc_service_call(cpu, r1, fiba, ar); -} - -static int kvm_sic_service_call(S390CPU *cpu, struct kvm_run *run) -{ - /* NOOP */ - return 0; -} - -static int kvm_rpcit_service_call(S390CPU *cpu, struct kvm_run *run) -{ - uint8_t r1 = (run->s390_sieic.ipb & 0x00f00000) >> 20; - uint8_t r2 = (run->s390_sieic.ipb & 0x000f0000) >> 16; - - return rpcit_service_call(cpu, r1, r2); -} - -static int kvm_pcistb_service_call(S390CPU *cpu, struct kvm_run *run) -{ - uint8_t r1 = (run->s390_sieic.ipa & 0x00f0) >> 4; - uint8_t r3 = run->s390_sieic.ipa & 0x000f; - uint64_t gaddr; - uint8_t ar; - - cpu_synchronize_state(CPU(cpu)); - gaddr = get_base_disp_rsy(cpu, run, &ar); - - return pcistb_service_call(cpu, r1, r3, gaddr, ar); -} - -static int kvm_mpcifc_service_call(S390CPU *cpu, struct kvm_run *run) -{ - uint8_t r1 = (run->s390_sieic.ipa & 0x00f0) >> 4; - uint64_t fiba; - uint8_t ar; - - cpu_synchronize_state(CPU(cpu)); - fiba = get_base_disp_rxy(cpu, run, &ar); - - return mpcifc_service_call(cpu, r1, fiba, ar); -} - -static int handle_b9(S390CPU *cpu, struct kvm_run *run, uint8_t ipa1) -{ - int r = 0; - - switch (ipa1) { - case PRIV_B9_CLP: - r = kvm_clp_service_call(cpu, run); - break; - case PRIV_B9_PCISTG: - r = kvm_pcistg_service_call(cpu, run); - break; - case PRIV_B9_PCILG: - r = kvm_pcilg_service_call(cpu, run); - break; - case PRIV_B9_RPCIT: - r = kvm_rpcit_service_call(cpu, run); - break; - case PRIV_B9_EQBS: - /* just inject exception */ - r = -1; - break; - default: - r = -1; - DPRINTF("KVM: unhandled PRIV: 0xb9%x\n", ipa1); - break; - } - - return r; -} - -static int handle_eb(S390CPU *cpu, struct kvm_run *run, uint8_t ipbl) -{ - int r = 0; - - switch (ipbl) { - case PRIV_EB_PCISTB: - r = kvm_pcistb_service_call(cpu, run); - break; - case PRIV_EB_SIC: - r = kvm_sic_service_call(cpu, run); - break; - case PRIV_EB_SQBS: - /* just inject exception */ - r = -1; - break; - default: - r = -1; - DPRINTF("KVM: unhandled PRIV: 0xeb%x\n", ipbl); - break; - } - - return r; -} - -static int handle_e3(S390CPU *cpu, struct kvm_run *run, uint8_t ipbl) -{ - int r = 0; - - switch (ipbl) { - case PRIV_E3_MPCIFC: - r = kvm_mpcifc_service_call(cpu, run); - break; - case PRIV_E3_STPCIFC: - r = kvm_stpcifc_service_call(cpu, run); - break; - default: - r = -1; - DPRINTF("KVM: unhandled PRIV: 0xe3%x\n", ipbl); - break; - } - - return r; -} - -static int handle_hypercall(S390CPU *cpu, struct kvm_run *run) -{ - CPUS390XState *env = &cpu->env; - int ret; - - cpu_synchronize_state(CPU(cpu)); - ret = s390_virtio_hypercall(env); - if (ret == -EINVAL) { - enter_pgmcheck(cpu, PGM_SPECIFICATION); - return 0; - } - - return ret; -} - -static void kvm_handle_diag_288(S390CPU *cpu, struct kvm_run *run) -{ - uint64_t r1, r3; - int rc; - - cpu_synchronize_state(CPU(cpu)); - r1 = (run->s390_sieic.ipa & 0x00f0) >> 4; - r3 = run->s390_sieic.ipa & 0x000f; - rc = handle_diag_288(&cpu->env, r1, r3); - if (rc) { - enter_pgmcheck(cpu, PGM_SPECIFICATION); - } -} - -static void kvm_handle_diag_308(S390CPU *cpu, struct kvm_run *run) -{ - uint64_t r1, r3; - - cpu_synchronize_state(CPU(cpu)); - r1 = (run->s390_sieic.ipa & 0x00f0) >> 4; - r3 = run->s390_sieic.ipa & 0x000f; - handle_diag_308(&cpu->env, r1, r3); -} - -static int handle_sw_breakpoint(S390CPU *cpu, struct kvm_run *run) -{ - CPUS390XState *env = &cpu->env; - unsigned long pc; - - cpu_synchronize_state(CPU(cpu)); - - pc = env->psw.addr - 4; - if (kvm_find_sw_breakpoint(CPU(cpu), pc)) { - env->psw.addr = pc; - return EXCP_DEBUG; - } - - return -ENOENT; -} - -#define DIAG_KVM_CODE_MASK 0x000000000000ffff - -static int handle_diag(S390CPU *cpu, struct kvm_run *run, uint32_t ipb) -{ - int r = 0; - uint16_t func_code; - - /* - * For any diagnose call we support, bits 48-63 of the resulting - * address specify the function code; the remainder is ignored. - */ - func_code = decode_basedisp_rs(&cpu->env, ipb, NULL) & DIAG_KVM_CODE_MASK; - switch (func_code) { - case DIAG_TIMEREVENT: - kvm_handle_diag_288(cpu, run); - break; - case DIAG_IPL: - kvm_handle_diag_308(cpu, run); - break; - case DIAG_KVM_HYPERCALL: - r = handle_hypercall(cpu, run); - break; - case DIAG_KVM_BREAKPOINT: - r = handle_sw_breakpoint(cpu, run); - break; - default: - DPRINTF("KVM: unknown DIAG: 0x%x\n", func_code); - enter_pgmcheck(cpu, PGM_SPECIFICATION); - break; - } - - return r; -} - -typedef struct SigpInfo { - S390CPU *cpu; - uint64_t param; - int cc; - uint64_t *status_reg; -} SigpInfo; - -static void set_sigp_status(SigpInfo *si, uint64_t status) -{ - *si->status_reg &= 0xffffffff00000000ULL; - *si->status_reg |= status; - si->cc = SIGP_CC_STATUS_STORED; -} - -static void sigp_start(void *arg) -{ - SigpInfo *si = arg; - - if (s390_cpu_get_state(si->cpu) != CPU_STATE_STOPPED) { - si->cc = SIGP_CC_ORDER_CODE_ACCEPTED; - return; - } - - s390_cpu_set_state(CPU_STATE_OPERATING, si->cpu); - si->cc = SIGP_CC_ORDER_CODE_ACCEPTED; -} - -static void sigp_stop(void *arg) -{ - SigpInfo *si = arg; - struct kvm_s390_irq irq = { - .type = KVM_S390_SIGP_STOP, - }; - - if (s390_cpu_get_state(si->cpu) != CPU_STATE_OPERATING) { - si->cc = SIGP_CC_ORDER_CODE_ACCEPTED; - return; - } - - /* disabled wait - sleeping in user space */ - if (CPU(si->cpu)->halted) { - s390_cpu_set_state(CPU_STATE_STOPPED, si->cpu); - } else { - /* execute the stop function */ - si->cpu->env.sigp_order = SIGP_STOP; - kvm_s390_vcpu_interrupt(si->cpu, &irq); - } - si->cc = SIGP_CC_ORDER_CODE_ACCEPTED; -} - -#define ADTL_SAVE_AREA_SIZE 1024 -static int kvm_s390_store_adtl_status(S390CPU *cpu, hwaddr addr) -{ - void *mem; - hwaddr len = ADTL_SAVE_AREA_SIZE; - - mem = cpu_physical_memory_map(addr, &len, 1); - if (!mem) { - return -EFAULT; - } - if (len != ADTL_SAVE_AREA_SIZE) { - cpu_physical_memory_unmap(mem, len, 1, 0); - return -EFAULT; - } - - memcpy(mem, &cpu->env.vregs, 512); - - cpu_physical_memory_unmap(mem, len, 1, len); - - return 0; -} - -#define KVM_S390_STORE_STATUS_DEF_ADDR offsetof(LowCore, floating_pt_save_area) -#define SAVE_AREA_SIZE 512 -static int kvm_s390_store_status(S390CPU *cpu, hwaddr addr, bool store_arch) -{ - static const uint8_t ar_id = 1; - uint64_t ckc = cpu->env.ckc >> 8; - void *mem; - int i; - hwaddr len = SAVE_AREA_SIZE; - - mem = cpu_physical_memory_map(addr, &len, 1); - if (!mem) { - return -EFAULT; - } - if (len != SAVE_AREA_SIZE) { - cpu_physical_memory_unmap(mem, len, 1, 0); - return -EFAULT; - } - - if (store_arch) { - cpu_physical_memory_write(offsetof(LowCore, ar_access_id), &ar_id, 1); - } - for (i = 0; i < 16; ++i) { - *((uint64_t *)mem + i) = get_freg(&cpu->env, i)->ll; - } - memcpy(mem + 128, &cpu->env.regs, 128); - memcpy(mem + 256, &cpu->env.psw, 16); - memcpy(mem + 280, &cpu->env.psa, 4); - memcpy(mem + 284, &cpu->env.fpc, 4); - memcpy(mem + 292, &cpu->env.todpr, 4); - memcpy(mem + 296, &cpu->env.cputm, 8); - memcpy(mem + 304, &ckc, 8); - memcpy(mem + 320, &cpu->env.aregs, 64); - memcpy(mem + 384, &cpu->env.cregs, 128); - - cpu_physical_memory_unmap(mem, len, 1, len); - - return 0; -} - -static void sigp_stop_and_store_status(void *arg) -{ - SigpInfo *si = arg; - struct kvm_s390_irq irq = { - .type = KVM_S390_SIGP_STOP, - }; - - /* disabled wait - sleeping in user space */ - if (s390_cpu_get_state(si->cpu) == CPU_STATE_OPERATING && - CPU(si->cpu)->halted) { - s390_cpu_set_state(CPU_STATE_STOPPED, si->cpu); - } - - switch (s390_cpu_get_state(si->cpu)) { - case CPU_STATE_OPERATING: - si->cpu->env.sigp_order = SIGP_STOP_STORE_STATUS; - kvm_s390_vcpu_interrupt(si->cpu, &irq); - /* store will be performed when handling the stop intercept */ - break; - case CPU_STATE_STOPPED: - /* already stopped, just store the status */ - cpu_synchronize_state(CPU(si->cpu)); - kvm_s390_store_status(si->cpu, KVM_S390_STORE_STATUS_DEF_ADDR, true); - break; - } - si->cc = SIGP_CC_ORDER_CODE_ACCEPTED; -} - -static void sigp_store_status_at_address(void *arg) -{ - SigpInfo *si = arg; - uint32_t address = si->param & 0x7ffffe00u; - - /* cpu has to be stopped */ - if (s390_cpu_get_state(si->cpu) != CPU_STATE_STOPPED) { - set_sigp_status(si, SIGP_STAT_INCORRECT_STATE); - return; - } - - cpu_synchronize_state(CPU(si->cpu)); - - if (kvm_s390_store_status(si->cpu, address, false)) { - set_sigp_status(si, SIGP_STAT_INVALID_PARAMETER); - return; - } - si->cc = SIGP_CC_ORDER_CODE_ACCEPTED; -} - -static void sigp_store_adtl_status(void *arg) -{ - SigpInfo *si = arg; - - if (!kvm_check_extension(kvm_state, KVM_CAP_S390_VECTOR_REGISTERS)) { - set_sigp_status(si, SIGP_STAT_INVALID_ORDER); - return; - } - - /* cpu has to be stopped */ - if (s390_cpu_get_state(si->cpu) != CPU_STATE_STOPPED) { - set_sigp_status(si, SIGP_STAT_INCORRECT_STATE); - return; - } - - /* parameter must be aligned to 1024-byte boundary */ - if (si->param & 0x3ff) { - set_sigp_status(si, SIGP_STAT_INVALID_PARAMETER); - return; - } - - cpu_synchronize_state(CPU(si->cpu)); - - if (kvm_s390_store_adtl_status(si->cpu, si->param)) { - set_sigp_status(si, SIGP_STAT_INVALID_PARAMETER); - return; - } - si->cc = SIGP_CC_ORDER_CODE_ACCEPTED; -} - -static void sigp_restart(void *arg) -{ - SigpInfo *si = arg; - struct kvm_s390_irq irq = { - .type = KVM_S390_RESTART, - }; - - switch (s390_cpu_get_state(si->cpu)) { - case CPU_STATE_STOPPED: - /* the restart irq has to be delivered prior to any other pending irq */ - cpu_synchronize_state(CPU(si->cpu)); - do_restart_interrupt(&si->cpu->env); - s390_cpu_set_state(CPU_STATE_OPERATING, si->cpu); - break; - case CPU_STATE_OPERATING: - kvm_s390_vcpu_interrupt(si->cpu, &irq); - break; - } - si->cc = SIGP_CC_ORDER_CODE_ACCEPTED; -} - -int kvm_s390_cpu_restart(S390CPU *cpu) -{ - SigpInfo si = { - .cpu = cpu, - }; - - run_on_cpu(CPU(cpu), sigp_restart, &si); - DPRINTF("DONE: KVM cpu restart: %p\n", &cpu->env); - return 0; -} - -static void sigp_initial_cpu_reset(void *arg) -{ - SigpInfo *si = arg; - CPUState *cs = CPU(si->cpu); - S390CPUClass *scc = S390_CPU_GET_CLASS(si->cpu); - - cpu_synchronize_state(cs); - scc->initial_cpu_reset(cs); - cpu_synchronize_post_reset(cs); - si->cc = SIGP_CC_ORDER_CODE_ACCEPTED; -} - -static void sigp_cpu_reset(void *arg) -{ - SigpInfo *si = arg; - CPUState *cs = CPU(si->cpu); - S390CPUClass *scc = S390_CPU_GET_CLASS(si->cpu); - - cpu_synchronize_state(cs); - scc->cpu_reset(cs); - cpu_synchronize_post_reset(cs); - si->cc = SIGP_CC_ORDER_CODE_ACCEPTED; -} - -static void sigp_set_prefix(void *arg) -{ - SigpInfo *si = arg; - uint32_t addr = si->param & 0x7fffe000u; - - cpu_synchronize_state(CPU(si->cpu)); - - if (!address_space_access_valid(&address_space_memory, addr, - sizeof(struct LowCore), false)) { - set_sigp_status(si, SIGP_STAT_INVALID_PARAMETER); - return; - } - - /* cpu has to be stopped */ - if (s390_cpu_get_state(si->cpu) != CPU_STATE_STOPPED) { - set_sigp_status(si, SIGP_STAT_INCORRECT_STATE); - return; - } - - si->cpu->env.psa = addr; - cpu_synchronize_post_init(CPU(si->cpu)); - si->cc = SIGP_CC_ORDER_CODE_ACCEPTED; -} - -static int handle_sigp_single_dst(S390CPU *dst_cpu, uint8_t order, - uint64_t param, uint64_t *status_reg) -{ - SigpInfo si = { - .cpu = dst_cpu, - .param = param, - .status_reg = status_reg, - }; - - /* cpu available? */ - if (dst_cpu == NULL) { - return SIGP_CC_NOT_OPERATIONAL; - } - - /* only resets can break pending orders */ - if (dst_cpu->env.sigp_order != 0 && - order != SIGP_CPU_RESET && - order != SIGP_INITIAL_CPU_RESET) { - return SIGP_CC_BUSY; - } - - switch (order) { - case SIGP_START: - run_on_cpu(CPU(dst_cpu), sigp_start, &si); - break; - case SIGP_STOP: - run_on_cpu(CPU(dst_cpu), sigp_stop, &si); - break; - case SIGP_RESTART: - run_on_cpu(CPU(dst_cpu), sigp_restart, &si); - break; - case SIGP_STOP_STORE_STATUS: - run_on_cpu(CPU(dst_cpu), sigp_stop_and_store_status, &si); - break; - case SIGP_STORE_STATUS_ADDR: - run_on_cpu(CPU(dst_cpu), sigp_store_status_at_address, &si); - break; - case SIGP_STORE_ADTL_STATUS: - run_on_cpu(CPU(dst_cpu), sigp_store_adtl_status, &si); - break; - case SIGP_SET_PREFIX: - run_on_cpu(CPU(dst_cpu), sigp_set_prefix, &si); - break; - case SIGP_INITIAL_CPU_RESET: - run_on_cpu(CPU(dst_cpu), sigp_initial_cpu_reset, &si); - break; - case SIGP_CPU_RESET: - run_on_cpu(CPU(dst_cpu), sigp_cpu_reset, &si); - break; - default: - DPRINTF("KVM: unknown SIGP: 0x%x\n", order); - set_sigp_status(&si, SIGP_STAT_INVALID_ORDER); - } - - return si.cc; -} - -static int sigp_set_architecture(S390CPU *cpu, uint32_t param, - uint64_t *status_reg) -{ - CPUState *cur_cs; - S390CPU *cur_cpu; - - /* due to the BQL, we are the only active cpu */ - CPU_FOREACH(cur_cs) { - cur_cpu = S390_CPU(cur_cs); - if (cur_cpu->env.sigp_order != 0) { - return SIGP_CC_BUSY; - } - cpu_synchronize_state(cur_cs); - /* all but the current one have to be stopped */ - if (cur_cpu != cpu && - s390_cpu_get_state(cur_cpu) != CPU_STATE_STOPPED) { - *status_reg &= 0xffffffff00000000ULL; - *status_reg |= SIGP_STAT_INCORRECT_STATE; - return SIGP_CC_STATUS_STORED; - } - } - - switch (param & 0xff) { - case SIGP_MODE_ESA_S390: - /* not supported */ - return SIGP_CC_NOT_OPERATIONAL; - case SIGP_MODE_Z_ARCH_TRANS_ALL_PSW: - case SIGP_MODE_Z_ARCH_TRANS_CUR_PSW: - CPU_FOREACH(cur_cs) { - cur_cpu = S390_CPU(cur_cs); - cur_cpu->env.pfault_token = -1UL; - } - break; - default: - *status_reg &= 0xffffffff00000000ULL; - *status_reg |= SIGP_STAT_INVALID_PARAMETER; - return SIGP_CC_STATUS_STORED; - } - - return SIGP_CC_ORDER_CODE_ACCEPTED; -} - -#define SIGP_ORDER_MASK 0x000000ff - -static int handle_sigp(S390CPU *cpu, struct kvm_run *run, uint8_t ipa1) -{ - CPUS390XState *env = &cpu->env; - const uint8_t r1 = ipa1 >> 4; - const uint8_t r3 = ipa1 & 0x0f; - int ret; - uint8_t order; - uint64_t *status_reg; - uint64_t param; - S390CPU *dst_cpu = NULL; - - cpu_synchronize_state(CPU(cpu)); - - /* get order code */ - order = decode_basedisp_rs(env, run->s390_sieic.ipb, NULL) - & SIGP_ORDER_MASK; - status_reg = &env->regs[r1]; - param = (r1 % 2) ? env->regs[r1] : env->regs[r1 + 1]; - - switch (order) { - case SIGP_SET_ARCH: - ret = sigp_set_architecture(cpu, param, status_reg); - break; - default: - /* all other sigp orders target a single vcpu */ - dst_cpu = s390_cpu_addr2state(env->regs[r3]); - ret = handle_sigp_single_dst(dst_cpu, order, param, status_reg); - } - - trace_kvm_sigp_finished(order, CPU(cpu)->cpu_index, - dst_cpu ? CPU(dst_cpu)->cpu_index : -1, ret); - - if (ret >= 0) { - setcc(cpu, ret); - return 0; - } - - return ret; -} - -static int handle_instruction(S390CPU *cpu, struct kvm_run *run) -{ - unsigned int ipa0 = (run->s390_sieic.ipa & 0xff00); - uint8_t ipa1 = run->s390_sieic.ipa & 0x00ff; - int r = -1; - - DPRINTF("handle_instruction 0x%x 0x%x\n", - run->s390_sieic.ipa, run->s390_sieic.ipb); - switch (ipa0) { - case IPA0_B2: - r = handle_b2(cpu, run, ipa1); - break; - case IPA0_B9: - r = handle_b9(cpu, run, ipa1); - break; - case IPA0_EB: - r = handle_eb(cpu, run, run->s390_sieic.ipb & 0xff); - break; - case IPA0_E3: - r = handle_e3(cpu, run, run->s390_sieic.ipb & 0xff); - break; - case IPA0_DIAG: - r = handle_diag(cpu, run, run->s390_sieic.ipb); - break; - case IPA0_SIGP: - r = handle_sigp(cpu, run, ipa1); - break; - } - - if (r < 0) { - r = 0; - enter_pgmcheck(cpu, 0x0001); - } - - return r; -} - -static bool is_special_wait_psw(CPUState *cs) -{ - /* signal quiesce */ - return cs->kvm_run->psw_addr == 0xfffUL; -} - -static void unmanageable_intercept(S390CPU *cpu, const char *str, int pswoffset) -{ - CPUState *cs = CPU(cpu); - - error_report("Unmanageable %s! CPU%i new PSW: 0x%016lx:%016lx", - str, cs->cpu_index, ldq_phys(cs->as, cpu->env.psa + pswoffset), - ldq_phys(cs->as, cpu->env.psa + pswoffset + 8)); - s390_cpu_halt(cpu); - qemu_system_guest_panicked(); -} - -static int handle_intercept(S390CPU *cpu) -{ - CPUState *cs = CPU(cpu); - struct kvm_run *run = cs->kvm_run; - int icpt_code = run->s390_sieic.icptcode; - int r = 0; - - DPRINTF("intercept: 0x%x (at 0x%lx)\n", icpt_code, - (long)cs->kvm_run->psw_addr); - switch (icpt_code) { - case ICPT_INSTRUCTION: - r = handle_instruction(cpu, run); - break; - case ICPT_PROGRAM: - unmanageable_intercept(cpu, "program interrupt", - offsetof(LowCore, program_new_psw)); - r = EXCP_HALTED; - break; - case ICPT_EXT_INT: - unmanageable_intercept(cpu, "external interrupt", - offsetof(LowCore, external_new_psw)); - r = EXCP_HALTED; - break; - case ICPT_WAITPSW: - /* disabled wait, since enabled wait is handled in kernel */ - cpu_synchronize_state(cs); - if (s390_cpu_halt(cpu) == 0) { - if (is_special_wait_psw(cs)) { - qemu_system_shutdown_request(); - } else { - qemu_system_guest_panicked(); - } - } - r = EXCP_HALTED; - break; - case ICPT_CPU_STOP: - if (s390_cpu_set_state(CPU_STATE_STOPPED, cpu) == 0) { - qemu_system_shutdown_request(); - } - if (cpu->env.sigp_order == SIGP_STOP_STORE_STATUS) { - kvm_s390_store_status(cpu, KVM_S390_STORE_STATUS_DEF_ADDR, - true); - } - cpu->env.sigp_order = 0; - r = EXCP_HALTED; - break; - case ICPT_SOFT_INTERCEPT: - fprintf(stderr, "KVM unimplemented icpt SOFT\n"); - exit(1); - break; - case ICPT_IO: - fprintf(stderr, "KVM unimplemented icpt IO\n"); - exit(1); - break; - default: - fprintf(stderr, "Unknown intercept code: %d\n", icpt_code); - exit(1); - break; - } - - return r; -} - -static int handle_tsch(S390CPU *cpu) -{ - CPUState *cs = CPU(cpu); - struct kvm_run *run = cs->kvm_run; - int ret; - - cpu_synchronize_state(cs); - - ret = ioinst_handle_tsch(cpu, cpu->env.regs[1], run->s390_tsch.ipb); - if (ret < 0) { - /* - * Failure. - * If an I/O interrupt had been dequeued, we have to reinject it. - */ - if (run->s390_tsch.dequeued) { - kvm_s390_io_interrupt(run->s390_tsch.subchannel_id, - run->s390_tsch.subchannel_nr, - run->s390_tsch.io_int_parm, - run->s390_tsch.io_int_word); - } - ret = 0; - } - return ret; -} - -static void insert_stsi_3_2_2(S390CPU *cpu, __u64 addr, uint8_t ar) -{ - struct sysib_322 sysib; - int del; - - if (s390_cpu_virt_mem_read(cpu, addr, ar, &sysib, sizeof(sysib))) { - return; - } - /* Shift the stack of Extended Names to prepare for our own data */ - memmove(&sysib.ext_names[1], &sysib.ext_names[0], - sizeof(sysib.ext_names[0]) * (sysib.count - 1)); - /* First virt level, that doesn't provide Ext Names delimits stack. It is - * assumed it's not capable of managing Extended Names for lower levels. - */ - for (del = 1; del < sysib.count; del++) { - if (!sysib.vm[del].ext_name_encoding || !sysib.ext_names[del][0]) { - break; - } - } - if (del < sysib.count) { - memset(sysib.ext_names[del], 0, - sizeof(sysib.ext_names[0]) * (sysib.count - del)); - } - /* Insert short machine name in EBCDIC, padded with blanks */ - if (qemu_name) { - memset(sysib.vm[0].name, 0x40, sizeof(sysib.vm[0].name)); - ebcdic_put(sysib.vm[0].name, qemu_name, MIN(sizeof(sysib.vm[0].name), - strlen(qemu_name))); - } - sysib.vm[0].ext_name_encoding = 2; /* 2 = UTF-8 */ - memset(sysib.ext_names[0], 0, sizeof(sysib.ext_names[0])); - /* If hypervisor specifies zero Extended Name in STSI322 SYSIB, it's - * considered by s390 as not capable of providing any Extended Name. - * Therefore if no name was specified on qemu invocation, we go with the - * same "KVMguest" default, which KVM has filled into short name field. - */ - if (qemu_name) { - strncpy((char *)sysib.ext_names[0], qemu_name, - sizeof(sysib.ext_names[0])); - } else { - strcpy((char *)sysib.ext_names[0], "KVMguest"); - } - /* Insert UUID */ - memcpy(sysib.vm[0].uuid, qemu_uuid, sizeof(sysib.vm[0].uuid)); - - s390_cpu_virt_mem_write(cpu, addr, ar, &sysib, sizeof(sysib)); -} - -static int handle_stsi(S390CPU *cpu) -{ - CPUState *cs = CPU(cpu); - struct kvm_run *run = cs->kvm_run; - - switch (run->s390_stsi.fc) { - case 3: - if (run->s390_stsi.sel1 != 2 || run->s390_stsi.sel2 != 2) { - return 0; - } - /* Only sysib 3.2.2 needs post-handling for now. */ - insert_stsi_3_2_2(cpu, run->s390_stsi.addr, run->s390_stsi.ar); - return 0; - default: - return 0; - } -} - -static int kvm_arch_handle_debug_exit(S390CPU *cpu) -{ - CPUState *cs = CPU(cpu); - struct kvm_run *run = cs->kvm_run; - - int ret = 0; - struct kvm_debug_exit_arch *arch_info = &run->debug.arch; - - switch (arch_info->type) { - case KVM_HW_WP_WRITE: - if (find_hw_breakpoint(arch_info->addr, -1, arch_info->type)) { - cs->watchpoint_hit = &hw_watchpoint; - hw_watchpoint.vaddr = arch_info->addr; - hw_watchpoint.flags = BP_MEM_WRITE; - ret = EXCP_DEBUG; - } - break; - case KVM_HW_BP: - if (find_hw_breakpoint(arch_info->addr, -1, arch_info->type)) { - ret = EXCP_DEBUG; - } - break; - case KVM_SINGLESTEP: - if (cs->singlestep_enabled) { - ret = EXCP_DEBUG; - } - break; - default: - ret = -ENOSYS; - } - - return ret; -} - -int kvm_arch_handle_exit(CPUState *cs, struct kvm_run *run) -{ - S390CPU *cpu = S390_CPU(cs); - int ret = 0; - - qemu_mutex_lock_iothread(); - - switch (run->exit_reason) { - case KVM_EXIT_S390_SIEIC: - ret = handle_intercept(cpu); - break; - case KVM_EXIT_S390_RESET: - s390_reipl_request(); - break; - case KVM_EXIT_S390_TSCH: - ret = handle_tsch(cpu); - break; - case KVM_EXIT_S390_STSI: - ret = handle_stsi(cpu); - break; - case KVM_EXIT_DEBUG: - ret = kvm_arch_handle_debug_exit(cpu); - break; - default: - fprintf(stderr, "Unknown KVM exit: %d\n", run->exit_reason); - break; - } - qemu_mutex_unlock_iothread(); - - if (ret == 0) { - ret = EXCP_INTERRUPT; - } - return ret; -} - -bool kvm_arch_stop_on_emulation_error(CPUState *cpu) -{ - return true; -} - -int kvm_arch_on_sigbus_vcpu(CPUState *cpu, int code, void *addr) -{ - return 1; -} - -int kvm_arch_on_sigbus(int code, void *addr) -{ - return 1; -} - -void kvm_s390_io_interrupt(uint16_t subchannel_id, - uint16_t subchannel_nr, uint32_t io_int_parm, - uint32_t io_int_word) -{ - struct kvm_s390_irq irq = { - .u.io.subchannel_id = subchannel_id, - .u.io.subchannel_nr = subchannel_nr, - .u.io.io_int_parm = io_int_parm, - .u.io.io_int_word = io_int_word, - }; - - if (io_int_word & IO_INT_WORD_AI) { - irq.type = KVM_S390_INT_IO(1, 0, 0, 0); - } else { - irq.type = ((subchannel_id & 0xff00) << 24) | - ((subchannel_id & 0x00060) << 22) | (subchannel_nr << 16); - } - kvm_s390_floating_interrupt(&irq); -} - -static uint64_t build_channel_report_mcic(void) -{ - uint64_t mcic; - - /* subclass: indicate channel report pending */ - mcic = MCIC_SC_CP | - /* subclass modifiers: none */ - /* storage errors: none */ - /* validity bits: no damage */ - MCIC_VB_WP | MCIC_VB_MS | MCIC_VB_PM | MCIC_VB_IA | MCIC_VB_FP | - MCIC_VB_GR | MCIC_VB_CR | MCIC_VB_ST | MCIC_VB_AR | MCIC_VB_PR | - MCIC_VB_FC | MCIC_VB_CT | MCIC_VB_CC; - if (kvm_check_extension(kvm_state, KVM_CAP_S390_VECTOR_REGISTERS)) { - mcic |= MCIC_VB_VR; - } - return mcic; -} - -void kvm_s390_crw_mchk(void) -{ - struct kvm_s390_irq irq = { - .type = KVM_S390_MCHK, - .u.mchk.cr14 = 1 << 28, - .u.mchk.mcic = build_channel_report_mcic(), - }; - kvm_s390_floating_interrupt(&irq); -} - -void kvm_s390_enable_css_support(S390CPU *cpu) -{ - int r; - - /* Activate host kernel channel subsystem support. */ - r = kvm_vcpu_enable_cap(CPU(cpu), KVM_CAP_S390_CSS_SUPPORT, 0); - assert(r == 0); -} - -void kvm_arch_init_irq_routing(KVMState *s) -{ - /* - * Note that while irqchip capabilities generally imply that cpustates - * are handled in-kernel, it is not true for s390 (yet); therefore, we - * have to override the common code kvm_halt_in_kernel_allowed setting. - */ - if (kvm_check_extension(s, KVM_CAP_IRQ_ROUTING)) { - kvm_gsi_routing_allowed = true; - kvm_halt_in_kernel_allowed = false; - } -} - -int kvm_s390_assign_subch_ioeventfd(EventNotifier *notifier, uint32_t sch, - int vq, bool assign) -{ - struct kvm_ioeventfd kick = { - .flags = KVM_IOEVENTFD_FLAG_VIRTIO_CCW_NOTIFY | - KVM_IOEVENTFD_FLAG_DATAMATCH, - .fd = event_notifier_get_fd(notifier), - .datamatch = vq, - .addr = sch, - .len = 8, - }; - if (!kvm_check_extension(kvm_state, KVM_CAP_IOEVENTFD)) { - return -ENOSYS; - } - if (!assign) { - kick.flags |= KVM_IOEVENTFD_FLAG_DEASSIGN; - } - return kvm_vm_ioctl(kvm_state, KVM_IOEVENTFD, &kick); -} - -int kvm_s390_get_memslot_count(KVMState *s) -{ - return kvm_check_extension(s, KVM_CAP_NR_MEMSLOTS); -} - -int kvm_s390_set_cpu_state(S390CPU *cpu, uint8_t cpu_state) -{ - struct kvm_mp_state mp_state = {}; - int ret; - - /* the kvm part might not have been initialized yet */ - if (CPU(cpu)->kvm_state == NULL) { - return 0; - } - - switch (cpu_state) { - case CPU_STATE_STOPPED: - mp_state.mp_state = KVM_MP_STATE_STOPPED; - break; - case CPU_STATE_CHECK_STOP: - mp_state.mp_state = KVM_MP_STATE_CHECK_STOP; - break; - case CPU_STATE_OPERATING: - mp_state.mp_state = KVM_MP_STATE_OPERATING; - break; - case CPU_STATE_LOAD: - mp_state.mp_state = KVM_MP_STATE_LOAD; - break; - default: - error_report("Requested CPU state is not a valid S390 CPU state: %u", - cpu_state); - exit(1); - } - - ret = kvm_vcpu_ioctl(CPU(cpu), KVM_SET_MP_STATE, &mp_state); - if (ret) { - trace_kvm_failed_cpu_state_set(CPU(cpu)->cpu_index, cpu_state, - strerror(-ret)); - } - - return ret; -} - -void kvm_s390_vcpu_interrupt_pre_save(S390CPU *cpu) -{ - struct kvm_s390_irq_state irq_state; - CPUState *cs = CPU(cpu); - int32_t bytes; - - if (!kvm_check_extension(kvm_state, KVM_CAP_S390_IRQ_STATE)) { - return; - } - - irq_state.buf = (uint64_t) cpu->irqstate; - irq_state.len = VCPU_IRQ_BUF_SIZE; - - bytes = kvm_vcpu_ioctl(cs, KVM_S390_GET_IRQ_STATE, &irq_state); - if (bytes < 0) { - cpu->irqstate_saved_size = 0; - error_report("Migration of interrupt state failed"); - return; - } - - cpu->irqstate_saved_size = bytes; -} - -int kvm_s390_vcpu_interrupt_post_load(S390CPU *cpu) -{ - CPUState *cs = CPU(cpu); - struct kvm_s390_irq_state irq_state; - int r; - - if (cpu->irqstate_saved_size == 0) { - return 0; - } - - if (!kvm_check_extension(kvm_state, KVM_CAP_S390_IRQ_STATE)) { - return -ENOSYS; - } - - irq_state.buf = (uint64_t) cpu->irqstate; - irq_state.len = cpu->irqstate_saved_size; - - r = kvm_vcpu_ioctl(cs, KVM_S390_SET_IRQ_STATE, &irq_state); - if (r) { - error_report("Setting interrupt state failed %d", r); - } - return r; -} - -int kvm_arch_fixup_msi_route(struct kvm_irq_routing_entry *route, - uint64_t address, uint32_t data, PCIDevice *dev) -{ - S390PCIBusDevice *pbdev; - uint32_t fid = data >> ZPCI_MSI_VEC_BITS; - uint32_t vec = data & ZPCI_MSI_VEC_MASK; - - pbdev = s390_pci_find_dev_by_fid(fid); - if (!pbdev) { - DPRINTF("add_msi_route no dev\n"); - return -ENODEV; - } - - pbdev->routes.adapter.ind_offset = vec; - - route->type = KVM_IRQ_ROUTING_S390_ADAPTER; - route->flags = 0; - route->u.adapter.summary_addr = pbdev->routes.adapter.summary_addr; - route->u.adapter.ind_addr = pbdev->routes.adapter.ind_addr; - route->u.adapter.summary_offset = pbdev->routes.adapter.summary_offset; - route->u.adapter.ind_offset = pbdev->routes.adapter.ind_offset; - route->u.adapter.adapter_id = pbdev->routes.adapter.adapter_id; - return 0; -} - -int kvm_arch_msi_data_to_gsi(uint32_t data) -{ - abort(); -} |