From 445d3facffe82788b880107c0849dab9505b33d9 Mon Sep 17 00:00:00 2001 From: Harsh Prateek Bora Date: Mon, 14 Oct 2024 17:57:23 +0530 Subject: [PATCH] ppc/spapr: remove deprecated machine pseries-2.7 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Commit 1392617d3576 intended to tag pseries-2.1 - 2.11 machines as deprecated with reasons mentioned in its commit log. Removing pseries-2.7 specific code with this patch for now. While at it, also remove pre-2.8-migration and pci/mmio hacks introduced for backward compatibility. Suggested-by: Cédric Le Goater Acked-by: Cédric Le Goater Signed-off-by: Harsh Prateek Bora Signed-off-by: Nicholas Piggin --- hw/ppc/spapr.c | 75 ------------------------------------- hw/ppc/spapr_pci.c | 57 ++++------------------------ include/hw/pci-host/spapr.h | 4 -- target/ppc/cpu.h | 5 --- target/ppc/cpu_init.c | 1 - target/ppc/machine.c | 52 ------------------------- 6 files changed, 7 insertions(+), 187 deletions(-) diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c index a9c988b8f6..c89ab89b97 100644 --- a/hw/ppc/spapr.c +++ b/hw/ppc/spapr.c @@ -5203,81 +5203,6 @@ static void spapr_machine_2_8_class_options(MachineClass *mc) DEFINE_SPAPR_MACHINE(2, 8); -/* - * pseries-2.7 - */ - -static bool phb_placement_2_7(SpaprMachineState *spapr, uint32_t index, - uint64_t *buid, hwaddr *pio, - hwaddr *mmio32, hwaddr *mmio64, - unsigned n_dma, uint32_t *liobns, Error **errp) -{ - /* Legacy PHB placement for pseries-2.7 and earlier machine types */ - const uint64_t base_buid = 0x800000020000000ULL; - const hwaddr phb_spacing = 0x1000000000ULL; /* 64 GiB */ - const hwaddr mmio_offset = 0xa0000000; /* 2 GiB + 512 MiB */ - const hwaddr pio_offset = 0x80000000; /* 2 GiB */ - const uint32_t max_index = 255; - const hwaddr phb0_alignment = 0x10000000000ULL; /* 1 TiB */ - - uint64_t ram_top = MACHINE(spapr)->ram_size; - hwaddr phb0_base, phb_base; - int i; - - /* Do we have device memory? */ - if (MACHINE(spapr)->device_memory) { - /* Can't just use maxram_size, because there may be an - * alignment gap between normal and device memory regions - */ - ram_top = MACHINE(spapr)->device_memory->base + - memory_region_size(&MACHINE(spapr)->device_memory->mr); - } - - phb0_base = QEMU_ALIGN_UP(ram_top, phb0_alignment); - - if (index > max_index) { - error_setg(errp, "\"index\" for PAPR PHB is too large (max %u)", - max_index); - return false; - } - - *buid = base_buid + index; - for (i = 0; i < n_dma; ++i) { - liobns[i] = SPAPR_PCI_LIOBN(index, i); - } - - phb_base = phb0_base + index * phb_spacing; - *pio = phb_base + pio_offset; - *mmio32 = phb_base + mmio_offset; - /* - * We don't set the 64-bit MMIO window, relying on the PHB's - * fallback behaviour of automatically splitting a large "32-bit" - * window into contiguous 32-bit and 64-bit windows - */ - - return true; -} - -static void spapr_machine_2_7_class_options(MachineClass *mc) -{ - SpaprMachineClass *smc = SPAPR_MACHINE_CLASS(mc); - static GlobalProperty compat[] = { - { TYPE_SPAPR_PCI_HOST_BRIDGE, "mem_win_size", "0xf80000000", }, - { TYPE_SPAPR_PCI_HOST_BRIDGE, "mem64_win_size", "0", }, - { TYPE_POWERPC_CPU, "pre-2.8-migration", "on", }, - { TYPE_SPAPR_PCI_HOST_BRIDGE, "pre-2.8-migration", "on", }, - }; - - spapr_machine_2_8_class_options(mc); - mc->default_cpu_type = POWERPC_CPU_TYPE_NAME("power7_v2.3"); - mc->default_machine_opts = "modern-hotplug-events=off"; - compat_props_add(mc->compat_props, hw_compat_2_7, hw_compat_2_7_len); - compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); - smc->phb_placement = phb_placement_2_7; -} - -DEFINE_SPAPR_MACHINE(2, 7); - static void spapr_machine_register_types(void) { type_register_static(&spapr_machine_info); diff --git a/hw/ppc/spapr_pci.c b/hw/ppc/spapr_pci.c index 8f1964ce52..7e24084673 100644 --- a/hw/ppc/spapr_pci.c +++ b/hw/ppc/spapr_pci.c @@ -1814,30 +1814,15 @@ static void spapr_phb_realize(DeviceState *dev, Error **errp) assert(sphb->index != (uint32_t)-1); /* checked in spapr_phb_pre_plug() */ - if (sphb->mem64_win_size != 0) { - if (sphb->mem_win_size > SPAPR_PCI_MEM32_WIN_SIZE) { - error_setg(errp, "32-bit memory window of size 0x%"HWADDR_PRIx - " (max 2 GiB)", sphb->mem_win_size); - return; - } - - /* 64-bit window defaults to identity mapping */ - sphb->mem64_win_pciaddr = sphb->mem64_win_addr; - } else if (sphb->mem_win_size > SPAPR_PCI_MEM32_WIN_SIZE) { - /* - * For compatibility with old configuration, if no 64-bit MMIO - * window is specified, but the ordinary (32-bit) memory - * window is specified as > 2GiB, we treat it as a 2GiB 32-bit - * window, with a 64-bit MMIO window following on immediately - * afterwards - */ - sphb->mem64_win_size = sphb->mem_win_size - SPAPR_PCI_MEM32_WIN_SIZE; - sphb->mem64_win_addr = sphb->mem_win_addr + SPAPR_PCI_MEM32_WIN_SIZE; - sphb->mem64_win_pciaddr = - SPAPR_PCI_MEM_WIN_BUS_OFFSET + SPAPR_PCI_MEM32_WIN_SIZE; - sphb->mem_win_size = SPAPR_PCI_MEM32_WIN_SIZE; + if (sphb->mem_win_size > SPAPR_PCI_MEM32_WIN_SIZE) { + error_setg(errp, "32-bit memory window of size 0x%"HWADDR_PRIx + " (max 2 GiB)", sphb->mem_win_size); + return; } + /* 64-bit window defaults to identity mapping */ + sphb->mem64_win_pciaddr = sphb->mem64_win_addr; + if (spapr_pci_find_phb(spapr, sphb->buid)) { SpaprPhbState *s; @@ -2066,8 +2051,6 @@ static Property spapr_phb_properties[] = { (1ULL << 12) | (1ULL << 16) | (1ULL << 21) | (1ULL << 24)), DEFINE_PROP_UINT32("numa_node", SpaprPhbState, numa_node, -1), - DEFINE_PROP_BOOL("pre-2.8-migration", SpaprPhbState, - pre_2_8_migration, false), DEFINE_PROP_BOOL("pcie-extended-configuration-space", SpaprPhbState, pcie_ecs, true), DEFINE_PROP_BOOL("pre-5.1-associativity", SpaprPhbState, @@ -2105,20 +2088,6 @@ static int spapr_pci_pre_save(void *opaque) gpointer key, value; int i; - if (sphb->pre_2_8_migration) { - sphb->mig_liobn = sphb->dma_liobn[0]; - sphb->mig_mem_win_addr = sphb->mem_win_addr; - sphb->mig_mem_win_size = sphb->mem_win_size; - sphb->mig_io_win_addr = sphb->io_win_addr; - sphb->mig_io_win_size = sphb->io_win_size; - - if ((sphb->mem64_win_size != 0) - && (sphb->mem64_win_addr - == (sphb->mem_win_addr + sphb->mem_win_size))) { - sphb->mig_mem_win_size += sphb->mem64_win_size; - } - } - g_free(sphb->msi_devs); sphb->msi_devs = NULL; sphb->msi_devs_num = g_hash_table_size(sphb->msi); @@ -2165,13 +2134,6 @@ static int spapr_pci_post_load(void *opaque, int version_id) return 0; } -static bool pre_2_8_migration(void *opaque, int version_id) -{ - SpaprPhbState *sphb = opaque; - - return sphb->pre_2_8_migration; -} - static const VMStateDescription vmstate_spapr_pci = { .name = "spapr_pci", .version_id = 2, @@ -2181,11 +2143,6 @@ static const VMStateDescription vmstate_spapr_pci = { .post_load = spapr_pci_post_load, .fields = (const VMStateField[]) { VMSTATE_UINT64_EQUAL(buid, SpaprPhbState, NULL), - VMSTATE_UINT32_TEST(mig_liobn, SpaprPhbState, pre_2_8_migration), - VMSTATE_UINT64_TEST(mig_mem_win_addr, SpaprPhbState, pre_2_8_migration), - VMSTATE_UINT64_TEST(mig_mem_win_size, SpaprPhbState, pre_2_8_migration), - VMSTATE_UINT64_TEST(mig_io_win_addr, SpaprPhbState, pre_2_8_migration), - VMSTATE_UINT64_TEST(mig_io_win_size, SpaprPhbState, pre_2_8_migration), VMSTATE_STRUCT_ARRAY(lsi_table, SpaprPhbState, PCI_NUM_PINS, 0, vmstate_spapr_pci_lsi, SpaprPciLsi), VMSTATE_INT32(msi_devs_num, SpaprPhbState), diff --git a/include/hw/pci-host/spapr.h b/include/hw/pci-host/spapr.h index 79187e80fd..0db87f1281 100644 --- a/include/hw/pci-host/spapr.h +++ b/include/hw/pci-host/spapr.h @@ -83,10 +83,6 @@ struct SpaprPhbState { bool pcie_ecs; /* Allow access to PCIe extended config space? */ /* Fields for migration compatibility hacks */ - bool pre_2_8_migration; - uint32_t mig_liobn; - hwaddr mig_mem_win_addr, mig_mem_win_size; - hwaddr mig_io_win_addr, mig_io_win_size; bool pre_5_1_assoc; }; diff --git a/target/ppc/cpu.h b/target/ppc/cpu.h index f7a2da2bbe..30dba050f6 100644 --- a/target/ppc/cpu.h +++ b/target/ppc/cpu.h @@ -1457,11 +1457,6 @@ struct ArchCPU { opc_handler_t *opcodes[PPC_CPU_OPCODES_LEN]; /* Fields related to migration compatibility hacks */ - bool pre_2_8_migration; - target_ulong mig_msr_mask; - uint64_t mig_insns_flags; - uint64_t mig_insns_flags2; - uint32_t mig_nb_BATs; bool pre_2_10_migration; bool pre_3_0_migration; int32_t mig_slb_nr; diff --git a/target/ppc/cpu_init.c b/target/ppc/cpu_init.c index 23881d09e9..7768392986 100644 --- a/target/ppc/cpu_init.c +++ b/target/ppc/cpu_init.c @@ -7452,7 +7452,6 @@ static void ppc_disas_set_info(CPUState *cs, disassemble_info *info) } static Property ppc_cpu_properties[] = { - DEFINE_PROP_BOOL("pre-2.8-migration", PowerPCCPU, pre_2_8_migration, false), DEFINE_PROP_BOOL("pre-2.10-migration", PowerPCCPU, pre_2_10_migration, false), DEFINE_PROP_BOOL("pre-3.0-migration", PowerPCCPU, pre_3_0_migration, diff --git a/target/ppc/machine.c b/target/ppc/machine.c index d433fd45fc..21bed7c7c8 100644 --- a/target/ppc/machine.c +++ b/target/ppc/machine.c @@ -118,13 +118,6 @@ static const VMStateInfo vmstate_info_vsr = { #define VMSTATE_VSR_ARRAY(_f, _s, _n) \ VMSTATE_VSR_ARRAY_V(_f, _s, _n, 0) -static bool cpu_pre_2_8_migration(void *opaque, int version_id) -{ - PowerPCCPU *cpu = opaque; - - return cpu->pre_2_8_migration; -} - #if defined(TARGET_PPC64) static bool cpu_pre_3_0_migration(void *opaque, int version_id) { @@ -139,22 +132,6 @@ static int cpu_pre_save(void *opaque) PowerPCCPU *cpu = opaque; CPUPPCState *env = &cpu->env; int i; - uint64_t insns_compat_mask = - PPC_INSNS_BASE | PPC_ISEL | PPC_STRING | PPC_MFTB - | PPC_FLOAT | PPC_FLOAT_FSEL | PPC_FLOAT_FRES - | PPC_FLOAT_FSQRT | PPC_FLOAT_FRSQRTE | PPC_FLOAT_FRSQRTES - | PPC_FLOAT_STFIWX | PPC_FLOAT_EXT - | PPC_CACHE | PPC_CACHE_ICBI | PPC_CACHE_DCBZ - | PPC_MEM_SYNC | PPC_MEM_EIEIO | PPC_MEM_TLBIE | PPC_MEM_TLBSYNC - | PPC_64B | PPC_64BX | PPC_ALTIVEC - | PPC_SEGMENT_64B | PPC_SLBI | PPC_POPCNTB | PPC_POPCNTWD; - uint64_t insns_compat_mask2 = PPC2_VSX | PPC2_VSX207 | PPC2_DFP | PPC2_DBRX - | PPC2_PERM_ISA206 | PPC2_DIVE_ISA206 - | PPC2_ATOMIC_ISA206 | PPC2_FP_CVT_ISA206 - | PPC2_FP_TST_ISA206 | PPC2_BCTAR_ISA207 - | PPC2_LSQ_ISA207 | PPC2_ALTIVEC_207 - | PPC2_ISA205 | PPC2_ISA207S | PPC2_FP_CVT_S64 | PPC2_TM - | PPC2_MEM_LWSYNC; env->spr[SPR_LR] = env->lr; env->spr[SPR_CTR] = env->ctr; @@ -177,29 +154,6 @@ static int cpu_pre_save(void *opaque) env->spr[SPR_IBAT4U + 2 * i + 1] = env->IBAT[1][i + 4]; } - /* Hacks for migration compatibility between 2.6, 2.7 & 2.8 */ - if (cpu->pre_2_8_migration) { - /* - * Mask out bits that got added to msr_mask since the versions - * which stupidly included it in the migration stream. - */ - target_ulong metamask = 0 -#if defined(TARGET_PPC64) - | (1ULL << MSR_TS0) - | (1ULL << MSR_TS1) -#endif - ; - cpu->mig_msr_mask = env->msr_mask & ~metamask; - cpu->mig_insns_flags = env->insns_flags & insns_compat_mask; - /* - * CPU models supported by old machines all have - * PPC_MEM_TLBIE, so we set it unconditionally to allow - * backward migration from a POWER9 host to a POWER8 host. - */ - cpu->mig_insns_flags |= PPC_MEM_TLBIE; - cpu->mig_insns_flags2 = env->insns_flags2 & insns_compat_mask2; - cpu->mig_nb_BATs = env->nb_BATs; - } if (cpu->pre_3_0_migration) { if (cpu->hash64_opts) { cpu->mig_slb_nr = cpu->hash64_opts->slb_size; @@ -760,12 +714,6 @@ const VMStateDescription vmstate_ppc_cpu = { /* Backward compatible internal state */ VMSTATE_UINTTL(env.hflags_compat_nmsr, PowerPCCPU), - /* Sanity checking */ - VMSTATE_UINTTL_TEST(mig_msr_mask, PowerPCCPU, cpu_pre_2_8_migration), - VMSTATE_UINT64_TEST(mig_insns_flags, PowerPCCPU, cpu_pre_2_8_migration), - VMSTATE_UINT64_TEST(mig_insns_flags2, PowerPCCPU, - cpu_pre_2_8_migration), - VMSTATE_UINT32_TEST(mig_nb_BATs, PowerPCCPU, cpu_pre_2_8_migration), VMSTATE_END_OF_LIST() }, .subsections = (const VMStateDescription * const []) {