diff options
author | Marcelo Tosatti <mtosatti@redhat.com> | 2012-10-11 05:27:15 -0300 |
---|---|---|
committer | Marcelo Tosatti <mtosatti@redhat.com> | 2012-10-11 05:27:15 -0300 |
commit | 4d9367b76f71c6d938cf8201392abe4bfb1136cb (patch) | |
tree | 93a31afc3151c19e4906aed6748e842d8431fb02 /target-ppc/kvm.c | |
parent | 6b414d9fb86527118f3ddb81a1d1a684b3548a9d (diff) | |
parent | 8e65440d5f64435c003d32088757f702b86af9b4 (diff) |
* upstream-merge: (575 commits)
ssi: Add slave autoconnect helper
MAINTAINERS: Added maintainerships for SSI
xilinx_zynq: Added SPI controllers + flashes
xilinx_spips: Xilinx Zynq SPI cntrlr device model
petalogix-ml605: added SPI controller with n25q128
xilinx_spi: Initial impl. of Xilinx SPI controller
m25p80: Initial implementation of SPI flash device
hw: Added generic FIFO API.
stellaris: Removed SSI mux
qdev: allow multiple qdev_init_gpio_in() calls
ssi: Added create_slave_no_init()
ssi: Implemented CS behaviour
ssi: Support for multiple attached devices
qemu-barrier: Fix compilation on i386 hosts
target-sparc: Optimize conditionals using SUBCC
target-sparc: Fall through from not-taken trap
target-sparc: Cleanup "global" temporary allocation
target-sparc: Use movcond for FMOV*R
target-sparc: Use movcond in mulscc
target-sparc: Move taddcctv and tsubcctv out of line
...
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Diffstat (limited to 'target-ppc/kvm.c')
-rw-r--r-- | target-ppc/kvm.c | 141 |
1 files changed, 101 insertions, 40 deletions
diff --git a/target-ppc/kvm.c b/target-ppc/kvm.c index a31d278a5..5cbe98a16 100644 --- a/target-ppc/kvm.c +++ b/target-ppc/kvm.c @@ -60,6 +60,7 @@ static int cap_booke_sregs; static int cap_ppc_smt; static int cap_ppc_rma; static int cap_spapr_tce; +static int cap_hior; /* 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 @@ -86,6 +87,7 @@ int kvm_arch_init(KVMState *s) 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_hior = kvm_check_extension(s, KVM_CAP_PPC_HIOR); if (!cap_interrupt_level) { fprintf(stderr, "KVM: Couldn't find level irq capability. Expect the " @@ -469,6 +471,54 @@ int kvm_arch_put_registers(CPUPPCState *env, int level) env->tlb_dirty = false; } + if (cap_segstate && (level >= KVM_PUT_RESET_STATE)) { + struct kvm_sregs sregs; + + sregs.pvr = env->spr[SPR_PVR]; + + sregs.u.s.sdr1 = env->spr[SPR_SDR1]; + + /* Sync SLB */ +#ifdef TARGET_PPC64 + for (i = 0; i < 64; i++) { + sregs.u.s.ppc64.slb[i].slbe = env->slb[i].esid; + sregs.u.s.ppc64.slb[i].slbv = env->slb[i].vsid; + } +#endif + + /* Sync SRs */ + for (i = 0; i < 16; i++) { + sregs.u.s.ppc32.sr[i] = env->sr[i]; + } + + /* Sync BATs */ + for (i = 0; i < 8; i++) { + /* Beware. We have to swap upper and lower bits here */ + sregs.u.s.ppc32.dbat[i] = ((uint64_t)env->DBAT[0][i] << 32) + | env->DBAT[1][i]; + sregs.u.s.ppc32.ibat[i] = ((uint64_t)env->IBAT[0][i] << 32) + | env->IBAT[1][i]; + } + + ret = kvm_vcpu_ioctl(env, KVM_SET_SREGS, &sregs); + if (ret) { + return ret; + } + } + + if (cap_hior && (level >= KVM_PUT_RESET_STATE)) { + uint64_t hior = env->spr[SPR_HIOR]; + struct kvm_one_reg reg = { + .id = KVM_REG_PPC_HIOR, + .addr = (uintptr_t) &hior, + }; + + ret = kvm_vcpu_ioctl(env, KVM_SET_ONE_REG, ®); + if (ret) { + return ret; + } + } + return ret; } @@ -795,7 +845,7 @@ static int read_cpuinfo(const char *field, char *value, int len) break; } if (!strncmp(line, field, field_len)) { - strncpy(value, line, len); + pstrcpy(value, len, line); ret = 0; break; } @@ -946,52 +996,14 @@ int kvmppc_get_hypercall(CPUPPCState *env, uint8_t *buf, int buf_len) void kvmppc_set_papr(CPUPPCState *env) { struct kvm_enable_cap cap = {}; - struct kvm_one_reg reg = {}; - struct kvm_sregs sregs = {}; int ret; - uint64_t hior = env->spr[SPR_HIOR]; cap.cap = KVM_CAP_PPC_PAPR; ret = kvm_vcpu_ioctl(env, KVM_ENABLE_CAP, &cap); if (ret) { - goto fail; - } - - /* - * XXX We set HIOR here. It really should be a qdev property of - * the CPU node, but we don't have CPUs converted to qdev yet. - * - * Once we have qdev CPUs, move HIOR to a qdev property and - * remove this chunk. - */ - reg.id = KVM_REG_PPC_HIOR; - reg.addr = (uintptr_t)&hior; - ret = kvm_vcpu_ioctl(env, KVM_SET_ONE_REG, ®); - if (ret) { - fprintf(stderr, "Couldn't set HIOR. Maybe you're running an old \n" - "kernel with support for HV KVM but no PAPR PR \n" - "KVM in which case things will work. If they don't \n" - "please update your host kernel!\n"); - } - - /* Set SDR1 so kernel space finds the HTAB */ - ret = kvm_vcpu_ioctl(env, KVM_GET_SREGS, &sregs); - if (ret) { - goto fail; + cpu_abort(env, "This KVM version does not support PAPR\n"); } - - sregs.u.s.sdr1 = env->spr[SPR_SDR1]; - - ret = kvm_vcpu_ioctl(env, KVM_SET_SREGS, &sregs); - if (ret) { - goto fail; - } - - return; - -fail: - cpu_abort(env, "This KVM version does not support PAPR\n"); } int kvmppc_smt_threads(void) @@ -999,6 +1011,7 @@ int kvmppc_smt_threads(void) return cap_ppc_smt ? cap_ppc_smt : 1; } +#ifdef TARGET_PPC64 off_t kvmppc_alloc_rma(const char *name, MemoryRegion *sysmem) { void *rma; @@ -1042,6 +1055,16 @@ off_t kvmppc_alloc_rma(const char *name, MemoryRegion *sysmem) return size; } +uint64_t kvmppc_rma_size(uint64_t current_size, unsigned int hash_shift) +{ + if (cap_ppc_rma >= 2) { + return current_size; + } + return MIN(current_size, + getrampagesize() << (hash_shift - 7)); +} +#endif + void *kvmppc_create_spapr_tce(uint32_t liobn, uint32_t window_size, int *pfd) { struct kvm_create_spapr_tce args = { @@ -1101,6 +1124,44 @@ int kvmppc_remove_spapr_tce(void *table, int fd, uint32_t window_size) return 0; } +int kvmppc_reset_htab(int shift_hint) +{ + uint32_t shift = shift_hint; + + if (!kvm_enabled()) { + /* Full emulation, tell caller to allocate htab itself */ + return 0; + } + if (kvm_check_extension(kvm_state, KVM_CAP_PPC_ALLOC_HTAB)) { + int ret; + ret = kvm_vm_ioctl(kvm_state, KVM_PPC_ALLOCATE_HTAB, &shift); + if (ret == -ENOTTY) { + /* At least some versions of PR KVM advertise the + * capability, but don't implement the ioctl(). Oops. + * Return 0 so that we allocate the htab in qemu, as is + * correct for PR. */ + return 0; + } else if (ret < 0) { + return ret; + } + return shift; + } + + /* We have a kernel that predates the htab reset calls. For PR + * KVM, we need to allocate the htab ourselves, for an HV KVM of + * this era, it has allocated a 16MB fixed size hash table + * already. Kernels of this era have the GET_PVINFO capability + * only on PR, so we use this hack to determine the right + * answer */ + if (kvm_check_extension(kvm_state, KVM_CAP_PPC_GET_PVINFO)) { + /* PR - tell caller to allocate htab */ + return 0; + } else { + /* HV - assume 16MB kernel allocated htab */ + return 24; + } +} + static inline uint32_t mfpvr(void) { uint32_t pvr; |