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target-arm queue:

Browse Source 
* hw/pci-host/gpex: Don't fault for unmapped parts of MMIO and PIO windows
  * hw: add compat machines for 6.1
  * Fault misaligned accesses where the architecture requires it
  * Fix some corner cases of MTE faults (notably with misaligned accesses)
  * Make Thumb store insns UNDEF for Rn==1111
  * hw/arm/smmuv3: Support 16K translation granule
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Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20210430' into staging

target-arm queue:
 * hw/pci-host/gpex: Don't fault for unmapped parts of MMIO and PIO windows
 * hw: add compat machines for 6.1
 * Fault misaligned accesses where the architecture requires it
 * Fix some corner cases of MTE faults (notably with misaligned accesses)
 * Make Thumb store insns UNDEF for Rn==1111
 * hw/arm/smmuv3: Support 16K translation granule

# gpg: Signature made Fri 30 Apr 2021 11:33:45 BST
# gpg:                using RSA key E1A5C593CD419DE28E8315CF3C2525ED14360CDE
# gpg:                issuer "peter.maydell@linaro.org"
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" [ultimate]
# gpg:                 aka "Peter Maydell <pmaydell@gmail.com>" [ultimate]
# gpg:                 aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" [ultimate]
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83  15CF 3C25 25ED 1436 0CDE

* remotes/pmaydell/tags/pull-target-arm-20210430: (43 commits)
  hw/pci-host/gpex: Don't fault for unmapped parts of MMIO and PIO windows
  hw: add compat machines for 6.1
  target/arm: Enforce alignment for sve LD1R
  target/arm: Enforce alignment for aa64 vector LDn/STn (single)
  target/arm: Enforce alignment for aa64 vector LDn/STn (multiple)
  target/arm: Use MemOp for size + endian in aa64 vector ld/st
  target/arm: Enforce alignment for aa64 load-acq/store-rel
  target/arm: Use finalize_memop for aa64 fpr load/store
  target/arm: Use finalize_memop for aa64 gpr load/store
  target/arm: Enforce alignment for VLDn/VSTn (single)
  target/arm: Enforce alignment for VLDn/VSTn (multiple)
  target/arm: Enforce alignment for VLDn (all lanes)
  target/arm: Enforce alignment for VLDR/VSTR
  target/arm: Enforce alignment for VLDM/VSTM
  target/arm: Enforce alignment for SRS
  target/arm: Enforce alignment for RFE
  target/arm: Enforce alignment for LDM/STM
  target/arm: Enforce alignment for LDA/LDAH/STL/STLH
  target/arm: Enforce word alignment for LDRD/STRD
  target/arm: Adjust gen_aa32_{ld, st}_i64 for align+endianness
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2021-04-30 11:34:59 +01:00
commit c3811c08ac
29 changed files with 878 additions and 583 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
hw/arm/smmuv3.c
View File

@ -259,8 +259,9 @@ static void smmuv3_init_regs(SMMUv3State *s)
s->idr[3] = FIELD_DP32(s->idr[3], IDR3, RIL, 1);
s->idr[3] = FIELD_DP32(s->idr[3], IDR3, HAD, 1);
/* 4K and 64K granule support */
/* 4K, 16K and 64K granule support */
s->idr[5] = FIELD_DP32(s->idr[5], IDR5, GRAN4K, 1);
s->idr[5] = FIELD_DP32(s->idr[5], IDR5, GRAN16K, 1);
s->idr[5] = FIELD_DP32(s->idr[5], IDR5, GRAN64K, 1);
s->idr[5] = FIELD_DP32(s->idr[5], IDR5, OAS, SMMU_IDR5_OAS); /* 44 bits */
@ -503,7 +504,8 @@ static int decode_cd(SMMUTransCfg *cfg, CD *cd, SMMUEventInfo *event)
tg = CD_TG(cd, i);
tt->granule_sz = tg2granule(tg, i);
if ((tt->granule_sz != 12 && tt->granule_sz != 16) || CD_ENDI(cd)) {
if ((tt->granule_sz != 12 && tt->granule_sz != 14 &&
tt->granule_sz != 16) || CD_ENDI(cd)) {
goto bad_cd;
}

7
hw/arm/virt.c
View File

@ -2757,10 +2757,15 @@ static void machvirt_machine_init(void)
}
type_init(machvirt_machine_init);
static void virt_machine_6_1_options(MachineClass *mc)
{
}
DEFINE_VIRT_MACHINE_AS_LATEST(6, 1)
static void virt_machine_6_0_options(MachineClass *mc)
{
}
DEFINE_VIRT_MACHINE_AS_LATEST(6, 0)
DEFINE_VIRT_MACHINE(6, 0)
static void virt_machine_5_2_options(MachineClass *mc)
{

5
hw/core/machine.c
View File

@ -36,6 +36,11 @@
#include "hw/virtio/virtio.h"
#include "hw/virtio/virtio-pci.h"
GlobalProperty hw_compat_6_0[] = {
{ "gpex-pcihost", "allow-unmapped-accesses", "false" },
};
const size_t hw_compat_6_0_len = G_N_ELEMENTS(hw_compat_6_0);
GlobalProperty hw_compat_5_2[] = {
{ "ICH9-LPC", "smm-compat", "on"},
{ "PIIX4_PM", "smm-compat", "on"},

3
hw/i386/pc.c
View File

@ -96,6 +96,9 @@
#include "trace.h"
#include CONFIG_DEVICES
GlobalProperty pc_compat_6_0[] = {};
const size_t pc_compat_6_0_len = G_N_ELEMENTS(pc_compat_6_0);
GlobalProperty pc_compat_5_2[] = {
{ "ICH9-LPC", "x-smi-cpu-hotunplug", "off" },
};

14
hw/i386/pc_piix.c
View File

@ -415,7 +415,7 @@ static void pc_i440fx_machine_options(MachineClass *m)
machine_class_allow_dynamic_sysbus_dev(m, TYPE_VMBUS_BRIDGE);
}
static void pc_i440fx_6_0_machine_options(MachineClass *m)
static void pc_i440fx_6_1_machine_options(MachineClass *m)
{
PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
pc_i440fx_machine_options(m);
@ -424,6 +424,18 @@ static void pc_i440fx_6_0_machine_options(MachineClass *m)
pcmc->default_cpu_version = 1;
}
DEFINE_I440FX_MACHINE(v6_1, "pc-i440fx-6.1", NULL,
pc_i440fx_6_1_machine_options);
static void pc_i440fx_6_0_machine_options(MachineClass *m)
{
pc_i440fx_6_1_machine_options(m);
m->alias = NULL;
m->is_default = false;
compat_props_add(m->compat_props, hw_compat_6_0, hw_compat_6_0_len);
compat_props_add(m->compat_props, pc_compat_6_0, pc_compat_6_0_len);
}
DEFINE_I440FX_MACHINE(v6_0, "pc-i440fx-6.0", NULL,
pc_i440fx_6_0_machine_options);

13
hw/i386/pc_q35.c
View File

@ -345,7 +345,7 @@ static void pc_q35_machine_options(MachineClass *m)
m->max_cpus = 288;
}
static void pc_q35_6_0_machine_options(MachineClass *m)
static void pc_q35_6_1_machine_options(MachineClass *m)
{
PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
pc_q35_machine_options(m);
@ -353,6 +353,17 @@ static void pc_q35_6_0_machine_options(MachineClass *m)
pcmc->default_cpu_version = 1;
}
DEFINE_Q35_MACHINE(v6_1, "pc-q35-6.1", NULL,
pc_q35_6_1_machine_options);
static void pc_q35_6_0_machine_options(MachineClass *m)
{
pc_q35_6_1_machine_options(m);
m->alias = NULL;
compat_props_add(m->compat_props, hw_compat_6_0, hw_compat_6_0_len);
compat_props_add(m->compat_props, pc_compat_6_0, pc_compat_6_0_len);
}
DEFINE_Q35_MACHINE(v6_0, "pc-q35-6.0", NULL,
pc_q35_6_0_machine_options);

56
hw/pci-host/gpex.c
View File

@ -83,12 +83,51 @@ static void gpex_host_realize(DeviceState *dev, Error **errp)
int i;
pcie_host_mmcfg_init(pex, PCIE_MMCFG_SIZE_MAX);
sysbus_init_mmio(sbd, &pex->mmio);
/*
* Note that the MemoryRegions io_mmio and io_ioport that we pass
* to pci_register_root_bus() are not the same as the
* MemoryRegions io_mmio_window and io_ioport_window that we
* expose as SysBus MRs. The difference is in the behaviour of
* accesses to addresses where no PCI device has been mapped.
*
* io_mmio and io_ioport are the underlying PCI view of the PCI
* address space, and when a PCI device does a bus master access
* to a bad address this is reported back to it as a transaction
* failure.
*
* io_mmio_window and io_ioport_window implement "unmapped
* addresses read as -1 and ignore writes"; this is traditional
* x86 PC behaviour, which is not mandated by the PCI spec proper
* but expected by much PCI-using guest software, including Linux.
*
* In the interests of not being unnecessarily surprising, we
* implement it in the gpex PCI host controller, by providing the
* _window MRs, which are containers with io ops that implement
* the 'background' behaviour and which hold the real PCI MRs as
* subregions.
*/
memory_region_init(&s->io_mmio, OBJECT(s), "gpex_mmio", UINT64_MAX);
memory_region_init(&s->io_ioport, OBJECT(s), "gpex_ioport", 64 * 1024);
sysbus_init_mmio(sbd, &pex->mmio);
sysbus_init_mmio(sbd, &s->io_mmio);
sysbus_init_mmio(sbd, &s->io_ioport);
if (s->allow_unmapped_accesses) {
memory_region_init_io(&s->io_mmio_window, OBJECT(s),
&unassigned_io_ops, OBJECT(s),
"gpex_mmio_window", UINT64_MAX);
memory_region_init_io(&s->io_ioport_window, OBJECT(s),
&unassigned_io_ops, OBJECT(s),
"gpex_ioport_window", 64 * 1024);
memory_region_add_subregion(&s->io_mmio_window, 0, &s->io_mmio);
memory_region_add_subregion(&s->io_ioport_window, 0, &s->io_ioport);
sysbus_init_mmio(sbd, &s->io_mmio_window);
sysbus_init_mmio(sbd, &s->io_ioport_window);
} else {
sysbus_init_mmio(sbd, &s->io_mmio);
sysbus_init_mmio(sbd, &s->io_ioport);
}
for (i = 0; i < GPEX_NUM_IRQS; i++) {
sysbus_init_irq(sbd, &s->irq[i]);
s->irq_num[i] = -1;
@ -108,6 +147,16 @@ static const char *gpex_host_root_bus_path(PCIHostState *host_bridge,
return "0000:00";
}
static Property gpex_host_properties[] = {
/*
* Permit CPU accesses to unmapped areas of the PIO and MMIO windows
* (discarding writes and returning -1 for reads) rather than aborting.
*/
DEFINE_PROP_BOOL("allow-unmapped-accesses", GPEXHost,
allow_unmapped_accesses, true),
DEFINE_PROP_END_OF_LIST(),
};
static void gpex_host_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
@ -117,6 +166,7 @@ static void gpex_host_class_init(ObjectClass *klass, void *data)
dc->realize = gpex_host_realize;
set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
dc->fw_name = "pci";
device_class_set_props(dc, gpex_host_properties);
}
static void gpex_host_initfn(Object *obj)

17
hw/ppc/spapr.c
View File

@ -4605,14 +4605,25 @@ static void spapr_machine_latest_class_options(MachineClass *mc)
type_init(spapr_machine_register_##suffix)
/*
* pseries-6.0
* pseries-6.1
*/
static void spapr_machine_6_0_class_options(MachineClass *mc)
static void spapr_machine_6_1_class_options(MachineClass *mc)
{
/* Defaults for the latest behaviour inherited from the base class */
}
DEFINE_SPAPR_MACHINE(6_0, "6.0", true);
DEFINE_SPAPR_MACHINE(6_1, "6.1", true);
/*
* pseries-6.0
*/
static void spapr_machine_6_0_class_options(MachineClass *mc)
{
spapr_machine_6_1_class_options(mc);
compat_props_add(mc->compat_props, hw_compat_6_0, hw_compat_6_0_len);
}
DEFINE_SPAPR_MACHINE(6_0, "6.0", false);
/*
* pseries-5.2

14
hw/s390x/s390-virtio-ccw.c
View File

@ -795,14 +795,26 @@ bool css_migration_enabled(void)
} \
type_init(ccw_machine_register_##suffix)
static void ccw_machine_6_1_instance_options(MachineState *machine)
{
}
static void ccw_machine_6_1_class_options(MachineClass *mc)
{
}
DEFINE_CCW_MACHINE(6_1, "6.1", true);
static void ccw_machine_6_0_instance_options(MachineState *machine)
{
ccw_machine_6_1_instance_options(machine);
}
static void ccw_machine_6_0_class_options(MachineClass *mc)
{
ccw_machine_6_1_class_options(mc);
compat_props_add(mc->compat_props, hw_compat_6_0, hw_compat_6_0_len);
}
DEFINE_CCW_MACHINE(6_0, "6.0", true);
DEFINE_CCW_MACHINE(6_0, "6.0", false);
static void ccw_machine_5_2_instance_options(MachineState *machine)
{

3
include/hw/boards.h
View File

@ -353,6 +353,9 @@ struct MachineState {
} \
type_init(machine_initfn##_register_types)
extern GlobalProperty hw_compat_6_0[];
extern const size_t hw_compat_6_0_len;
extern GlobalProperty hw_compat_5_2[];
extern const size_t hw_compat_5_2_len;

3
include/hw/i386/pc.h
View File

@ -197,6 +197,9 @@ bool pc_system_ovmf_table_find(const char *entry, uint8_t **data,
void pc_madt_cpu_entry(AcpiDeviceIf *adev, int uid,
const CPUArchIdList *apic_ids, GArray *entry);
extern GlobalProperty pc_compat_6_0[];
extern const size_t pc_compat_6_0_len;
extern GlobalProperty pc_compat_5_2[];
extern const size_t pc_compat_5_2_len;

4
include/hw/pci-host/gpex.h
View File

@ -49,8 +49,12 @@ struct GPEXHost {
MemoryRegion io_ioport;
MemoryRegion io_mmio;
MemoryRegion io_ioport_window;
MemoryRegion io_mmio_window;
qemu_irq irq[GPEX_NUM_IRQS];
int irq_num[GPEX_NUM_IRQS];
bool allow_unmapped_accesses;
};
struct GPEXConfig {

105
target/arm/cpu.h
View File

@ -225,6 +225,11 @@ typedef struct ARMPACKey {
} ARMPACKey;
#endif
/* See the commentary above the TBFLAG field definitions. */
typedef struct CPUARMTBFlags {
uint32_t flags;
target_ulong flags2;
} CPUARMTBFlags;
typedef struct CPUARMState {
/* Regs for current mode. */
@ -253,7 +258,7 @@ typedef struct CPUARMState {
uint32_t aarch64; /* 1 if CPU is in aarch64 state; inverse of PSTATE.nRW */
/* Cached TBFLAGS state. See below for which bits are included. */
uint32_t hflags;
CPUARMTBFlags hflags;
/* Frequently accessed CPSR bits are stored separately for efficiency.
This contains all the other bits. Use cpsr_{read,write} to access
@ -3377,74 +3382,82 @@ typedef ARMCPU ArchCPU;
#include "exec/cpu-all.h"
/*
* Bit usage in the TB flags field: bit 31 indicates whether we are
* in 32 or 64 bit mode. The meaning of the other bits depends on that.
* We put flags which are shared between 32 and 64 bit mode at the top
* of the word, and flags which apply to only one mode at the bottom.
* We have more than 32-bits worth of state per TB, so we split the data
* between tb->flags and tb->cs_base, which is otherwise unused for ARM.
* We collect these two parts in CPUARMTBFlags where they are named
* flags and flags2 respectively.
*
* 31 20 18 14 9 0
* +--------------+-----+-----+----------+--------------+
* | | | TBFLAG_A32 | |
* | | +-----+----------+ TBFLAG_AM32 |
* | TBFLAG_ANY | |TBFLAG_M32| |
* | +-----------+----------+--------------|
* | | TBFLAG_A64 |
* +--------------+-------------------------------------+
* 31 20 0
* The flags that are shared between all execution modes, TBFLAG_ANY,
* are stored in flags. The flags that are specific to a given mode
* are stores in flags2. Since cs_base is sized on the configured
* address size, flags2 always has 64-bits for A64, and a minimum of
* 32-bits for A32 and M32.
*
* The bits for 32-bit A-profile and M-profile partially overlap:
*
* 31 23 11 10 0
* +-------------+----------+----------------+
* | | | TBFLAG_A32 |
* | TBFLAG_AM32 | +-----+----------+
* | | |TBFLAG_M32|
* +-------------+----------------+----------+
* 31 23 5 4 0
*
* Unless otherwise noted, these bits are cached in env->hflags.
*/
FIELD(TBFLAG_ANY, AARCH64_STATE, 31, 1)
FIELD(TBFLAG_ANY, SS_ACTIVE, 30, 1)
FIELD(TBFLAG_ANY, PSTATE_SS, 29, 1) /* Not cached. */
FIELD(TBFLAG_ANY, BE_DATA, 28, 1)
FIELD(TBFLAG_ANY, MMUIDX, 24, 4)
FIELD(TBFLAG_ANY, AARCH64_STATE, 0, 1)
FIELD(TBFLAG_ANY, SS_ACTIVE, 1, 1)
FIELD(TBFLAG_ANY, PSTATE__SS, 2, 1) /* Not cached. */
FIELD(TBFLAG_ANY, BE_DATA, 3, 1)
FIELD(TBFLAG_ANY, MMUIDX, 4, 4)
/* Target EL if we take a floating-point-disabled exception */
FIELD(TBFLAG_ANY, FPEXC_EL, 22, 2)
FIELD(TBFLAG_ANY, FPEXC_EL, 8, 2)
/* For A-profile only, target EL for debug exceptions. */
FIELD(TBFLAG_ANY, DEBUG_TARGET_EL, 20, 2)
FIELD(TBFLAG_ANY, DEBUG_TARGET_EL, 10, 2)
/* Memory operations require alignment: SCTLR_ELx.A or CCR.UNALIGN_TRP */
FIELD(TBFLAG_ANY, ALIGN_MEM, 12, 1)
/*
* Bit usage when in AArch32 state, both A- and M-profile.
*/
FIELD(TBFLAG_AM32, CONDEXEC, 0, 8) /* Not cached. */
FIELD(TBFLAG_AM32, THUMB, 8, 1) /* Not cached. */
FIELD(TBFLAG_AM32, CONDEXEC, 24, 8) /* Not cached. */
FIELD(TBFLAG_AM32, THUMB, 23, 1) /* Not cached. */
/*
* Bit usage when in AArch32 state, for A-profile only.
*/
FIELD(TBFLAG_A32, VECLEN, 9, 3) /* Not cached. */
FIELD(TBFLAG_A32, VECSTRIDE, 12, 2) /* Not cached. */
FIELD(TBFLAG_A32, VECLEN, 0, 3) /* Not cached. */
FIELD(TBFLAG_A32, VECSTRIDE, 3, 2) /* Not cached. */
/*
* We store the bottom two bits of the CPAR as TB flags and handle
* checks on the other bits at runtime. This shares the same bits as
* VECSTRIDE, which is OK as no XScale CPU has VFP.
* Not cached, because VECLEN+VECSTRIDE are not cached.
*/
FIELD(TBFLAG_A32, XSCALE_CPAR, 12, 2)
FIELD(TBFLAG_A32, VFPEN, 14, 1) /* Partially cached, minus FPEXC. */
FIELD(TBFLAG_A32, SCTLR_B, 15, 1)
FIELD(TBFLAG_A32, HSTR_ACTIVE, 16, 1)
FIELD(TBFLAG_A32, XSCALE_CPAR, 5, 2)
FIELD(TBFLAG_A32, VFPEN, 7, 1) /* Partially cached, minus FPEXC. */
FIELD(TBFLAG_A32, SCTLR__B, 8, 1) /* Cannot overlap with SCTLR_B */
FIELD(TBFLAG_A32, HSTR_ACTIVE, 9, 1)
/*
* Indicates whether cp register reads and writes by guest code should access
* the secure or nonsecure bank of banked registers; note that this is not
* the same thing as the current security state of the processor!
*/
FIELD(TBFLAG_A32, NS, 17, 1)
FIELD(TBFLAG_A32, NS, 10, 1)
/*
* Bit usage when in AArch32 state, for M-profile only.
*/
/* Handler (ie not Thread) mode */
FIELD(TBFLAG_M32, HANDLER, 9, 1)
FIELD(TBFLAG_M32, HANDLER, 0, 1)
/* Whether we should generate stack-limit checks */
FIELD(TBFLAG_M32, STACKCHECK, 10, 1)
FIELD(TBFLAG_M32, STACKCHECK, 1, 1)
/* Set if FPCCR.LSPACT is set */
FIELD(TBFLAG_M32, LSPACT, 11, 1) /* Not cached. */
FIELD(TBFLAG_M32, LSPACT, 2, 1) /* Not cached. */
/* Set if we must create a new FP context */
FIELD(TBFLAG_M32, NEW_FP_CTXT_NEEDED, 12, 1) /* Not cached. */
FIELD(TBFLAG_M32, NEW_FP_CTXT_NEEDED, 3, 1) /* Not cached. */
/* Set if FPCCR.S does not match current security state */
FIELD(TBFLAG_M32, FPCCR_S_WRONG, 13, 1) /* Not cached. */
FIELD(TBFLAG_M32, FPCCR_S_WRONG, 4, 1) /* Not cached. */
/*
* Bit usage when in AArch64 state
@ -3462,6 +3475,26 @@ FIELD(TBFLAG_A64, TCMA, 16, 2)
FIELD(TBFLAG_A64, MTE_ACTIVE, 18, 1)
FIELD(TBFLAG_A64, MTE0_ACTIVE, 19, 1)
/*
* Helpers for using the above.
*/
#define DP_TBFLAG_ANY(DST, WHICH, VAL) \
(DST.flags = FIELD_DP32(DST.flags, TBFLAG_ANY, WHICH, VAL))
#define DP_TBFLAG_A64(DST, WHICH, VAL) \
(DST.flags2 = FIELD_DP32(DST.flags2, TBFLAG_A64, WHICH, VAL))
#define DP_TBFLAG_A32(DST, WHICH, VAL) \
(DST.flags2 = FIELD_DP32(DST.flags2, TBFLAG_A32, WHICH, VAL))
#define DP_TBFLAG_M32(DST, WHICH, VAL) \
(DST.flags2 = FIELD_DP32(DST.flags2, TBFLAG_M32, WHICH, VAL))
#define DP_TBFLAG_AM32(DST, WHICH, VAL) \
(DST.flags2 = FIELD_DP32(DST.flags2, TBFLAG_AM32, WHICH, VAL))
#define EX_TBFLAG_ANY(IN, WHICH) FIELD_EX32(IN.flags, TBFLAG_ANY, WHICH)
#define EX_TBFLAG_A64(IN, WHICH) FIELD_EX32(IN.flags2, TBFLAG_A64, WHICH)
#define EX_TBFLAG_A32(IN, WHICH) FIELD_EX32(IN.flags2, TBFLAG_A32, WHICH)
#define EX_TBFLAG_M32(IN, WHICH) FIELD_EX32(IN.flags2, TBFLAG_M32, WHICH)
#define EX_TBFLAG_AM32(IN, WHICH) FIELD_EX32(IN.flags2, TBFLAG_AM32, WHICH)
/**
* cpu_mmu_index:
* @env: The cpu environment
@ -3472,7 +3505,7 @@ FIELD(TBFLAG_A64, MTE0_ACTIVE, 19, 1)
*/
static inline int cpu_mmu_index(CPUARMState *env, bool ifetch)
{
return FIELD_EX32(env->hflags, TBFLAG_ANY, MMUIDX);
return EX_TBFLAG_ANY(env->hflags, MMUIDX);
}
static inline bool bswap_code(bool sctlr_b)

2
target/arm/helper-a64.c
View File

@ -1020,7 +1020,7 @@ void HELPER(exception_return)(CPUARMState *env, uint64_t new_pc)
* the hflags rebuild, since we can pull the composite TBII field
* from there.
*/
tbii = FIELD_EX32(env->hflags, TBFLAG_A64, TBII);
tbii = EX_TBFLAG_A64(env->hflags, TBII);
if ((tbii >> extract64(new_pc, 55, 1)) & 1) {
/* TBI is enabled. */
int core_mmu_idx = cpu_mmu_index(env, false);

3
target/arm/helper-a64.h
View File

@ -104,8 +104,7 @@ DEF_HELPER_FLAGS_3(autdb, TCG_CALL_NO_WG, i64, env, i64, i64)
DEF_HELPER_FLAGS_2(xpaci, TCG_CALL_NO_RWG_SE, i64, env, i64)
DEF_HELPER_FLAGS_2(xpacd, TCG_CALL_NO_RWG_SE, i64, env, i64)
DEF_HELPER_FLAGS_3(mte_check1, TCG_CALL_NO_WG, i64, env, i32, i64)
DEF_HELPER_FLAGS_3(mte_checkN, TCG_CALL_NO_WG, i64, env, i32, i64)
DEF_HELPER_FLAGS_3(mte_check, TCG_CALL_NO_WG, i64, env, i32, i64)
DEF_HELPER_FLAGS_3(mte_check_zva, TCG_CALL_NO_WG, i64, env, i32, i64)
DEF_HELPER_FLAGS_3(irg, TCG_CALL_NO_RWG, i64, env, i64, i64)
DEF_HELPER_FLAGS_4(addsubg, TCG_CALL_NO_RWG_SE, i64, env, i64, s32, i32)

162
target/arm/helper.c
View File

@ -12984,42 +12984,49 @@ ARMMMUIdx arm_stage1_mmu_idx(CPUARMState *env)
}
#endif
static uint32_t rebuild_hflags_common(CPUARMState *env, int fp_el,
ARMMMUIdx mmu_idx, uint32_t flags)
static CPUARMTBFlags rebuild_hflags_common(CPUARMState *env, int fp_el,
ARMMMUIdx mmu_idx,
CPUARMTBFlags flags)
{
flags = FIELD_DP32(flags, TBFLAG_ANY, FPEXC_EL, fp_el);
flags = FIELD_DP32(flags, TBFLAG_ANY, MMUIDX,
arm_to_core_mmu_idx(mmu_idx));
DP_TBFLAG_ANY(flags, FPEXC_EL, fp_el);
DP_TBFLAG_ANY(flags, MMUIDX, arm_to_core_mmu_idx(mmu_idx));
if (arm_singlestep_active(env)) {
flags = FIELD_DP32(flags, TBFLAG_ANY, SS_ACTIVE, 1);
DP_TBFLAG_ANY(flags, SS_ACTIVE, 1);
}
return flags;
}
static uint32_t rebuild_hflags_common_32(CPUARMState *env, int fp_el,
ARMMMUIdx mmu_idx, uint32_t flags)
static CPUARMTBFlags rebuild_hflags_common_32(CPUARMState *env, int fp_el,
ARMMMUIdx mmu_idx,
CPUARMTBFlags flags)
{
bool sctlr_b = arm_sctlr_b(env);
if (sctlr_b) {
flags = FIELD_DP32(flags, TBFLAG_A32, SCTLR_B, 1);
DP_TBFLAG_A32(flags, SCTLR__B, 1);
}
if (arm_cpu_data_is_big_endian_a32(env, sctlr_b)) {
flags = FIELD_DP32(flags, TBFLAG_ANY, BE_DATA, 1);
DP_TBFLAG_ANY(flags, BE_DATA, 1);
}
flags = FIELD_DP32(flags, TBFLAG_A32, NS, !access_secure_reg(env));
DP_TBFLAG_A32(flags, NS, !access_secure_reg(env));
return rebuild_hflags_common(env, fp_el, mmu_idx, flags);
}
static uint32_t rebuild_hflags_m32(CPUARMState *env, int fp_el,
ARMMMUIdx mmu_idx)
static CPUARMTBFlags rebuild_hflags_m32(CPUARMState *env, int fp_el,
ARMMMUIdx mmu_idx)
{
uint32_t flags = 0;
CPUARMTBFlags flags = {};
uint32_t ccr = env->v7m.ccr[env->v7m.secure];
/* Without HaveMainExt, CCR.UNALIGN_TRP is RES1. */
if (ccr & R_V7M_CCR_UNALIGN_TRP_MASK) {
DP_TBFLAG_ANY(flags, ALIGN_MEM, 1);
}
if (arm_v7m_is_handler_mode(env)) {
flags = FIELD_DP32(flags, TBFLAG_M32, HANDLER, 1);
DP_TBFLAG_M32(flags, HANDLER, 1);
}
/*
@ -13029,56 +13036,60 @@ static uint32_t rebuild_hflags_m32(CPUARMState *env, int fp_el,
*/
if (arm_feature(env, ARM_FEATURE_V8) &&
!((mmu_idx & ARM_MMU_IDX_M_NEGPRI) &&
(env->v7m.ccr[env->v7m.secure] & R_V7M_CCR_STKOFHFNMIGN_MASK))) {
flags = FIELD_DP32(flags, TBFLAG_M32, STACKCHECK, 1);
(ccr & R_V7M_CCR_STKOFHFNMIGN_MASK))) {
DP_TBFLAG_M32(flags, STACKCHECK, 1);
}
return rebuild_hflags_common_32(env, fp_el, mmu_idx, flags);
}
static uint32_t rebuild_hflags_aprofile(CPUARMState *env)
static CPUARMTBFlags rebuild_hflags_aprofile(CPUARMState *env)
{
int flags = 0;
CPUARMTBFlags flags = {};
flags = FIELD_DP32(flags, TBFLAG_ANY, DEBUG_TARGET_EL,
arm_debug_target_el(env));
DP_TBFLAG_ANY(flags, DEBUG_TARGET_EL, arm_debug_target_el(env));
return flags;
}
static uint32_t rebuild_hflags_a32(CPUARMState *env, int fp_el,
ARMMMUIdx mmu_idx)
static CPUARMTBFlags rebuild_hflags_a32(CPUARMState *env, int fp_el,
ARMMMUIdx mmu_idx)
{
uint32_t flags = rebuild_hflags_aprofile(env);
CPUARMTBFlags flags = rebuild_hflags_aprofile(env);
int el = arm_current_el(env);
if (arm_el_is_aa64(env, 1)) {
flags = FIELD_DP32(flags, TBFLAG_A32, VFPEN, 1);
if (arm_sctlr(env, el) & SCTLR_A) {
DP_TBFLAG_ANY(flags, ALIGN_MEM, 1);
}
if (arm_current_el(env) < 2 && env->cp15.hstr_el2 &&
if (arm_el_is_aa64(env, 1)) {
DP_TBFLAG_A32(flags, VFPEN, 1);
}
if (el < 2 && env->cp15.hstr_el2 &&
(arm_hcr_el2_eff(env) & (HCR_E2H | HCR_TGE)) != (HCR_E2H | HCR_TGE)) {
flags = FIELD_DP32(flags, TBFLAG_A32, HSTR_ACTIVE, 1);
DP_TBFLAG_A32(flags, HSTR_ACTIVE, 1);
}
return rebuild_hflags_common_32(env, fp_el, mmu_idx, flags);
}
static uint32_t rebuild_hflags_a64(CPUARMState *env, int el, int fp_el,
ARMMMUIdx mmu_idx)
static CPUARMTBFlags rebuild_hflags_a64(CPUARMState *env, int el, int fp_el,
ARMMMUIdx mmu_idx)
{
uint32_t flags = rebuild_hflags_aprofile(env);
CPUARMTBFlags flags = rebuild_hflags_aprofile(env);
ARMMMUIdx stage1 = stage_1_mmu_idx(mmu_idx);
uint64_t tcr = regime_tcr(env, mmu_idx)->raw_tcr;
uint64_t sctlr;
int tbii, tbid;
flags = FIELD_DP32(flags, TBFLAG_ANY, AARCH64_STATE, 1);
DP_TBFLAG_ANY(flags, AARCH64_STATE, 1);
/* Get control bits for tagged addresses. */
tbid = aa64_va_parameter_tbi(tcr, mmu_idx);
tbii = tbid & ~aa64_va_parameter_tbid(tcr, mmu_idx);
flags = FIELD_DP32(flags, TBFLAG_A64, TBII, tbii);
flags = FIELD_DP32(flags, TBFLAG_A64, TBID, tbid);
DP_TBFLAG_A64(flags, TBII, tbii);
DP_TBFLAG_A64(flags, TBID, tbid);
if (cpu_isar_feature(aa64_sve, env_archcpu(env))) {
int sve_el = sve_exception_el(env, el);
@ -13093,14 +13104,18 @@ static uint32_t rebuild_hflags_a64(CPUARMState *env, int el, int fp_el,
} else {
zcr_len = sve_zcr_len_for_el(env, el);
}
flags = FIELD_DP32(flags, TBFLAG_A64, SVEEXC_EL, sve_el);
flags = FIELD_DP32(flags, TBFLAG_A64, ZCR_LEN, zcr_len);
DP_TBFLAG_A64(flags, SVEEXC_EL, sve_el);
DP_TBFLAG_A64(flags, ZCR_LEN, zcr_len);
}
sctlr = regime_sctlr(env, stage1);
if (sctlr & SCTLR_A) {
DP_TBFLAG_ANY(flags, ALIGN_MEM, 1);
}
if (arm_cpu_data_is_big_endian_a64(el, sctlr)) {
flags = FIELD_DP32(flags, TBFLAG_ANY, BE_DATA, 1);
DP_TBFLAG_ANY(flags, BE_DATA, 1);
}
if (cpu_isar_feature(aa64_pauth, env_archcpu(env))) {
@ -13111,14 +13126,14 @@ static uint32_t rebuild_hflags_a64(CPUARMState *env, int el, int fp_el,
* The decision of which action to take is left to a helper.
*/
if (sctlr & (SCTLR_EnIA | SCTLR_EnIB | SCTLR_EnDA | SCTLR_EnDB)) {
flags = FIELD_DP32(flags, TBFLAG_A64, PAUTH_ACTIVE, 1);
DP_TBFLAG_A64(flags, PAUTH_ACTIVE, 1);
}
}
if (cpu_isar_feature(aa64_bti, env_archcpu(env))) {
/* Note that SCTLR_EL[23].BT == SCTLR_BT1. */
if (sctlr & (el == 0 ? SCTLR_BT0 : SCTLR_BT1)) {
flags = FIELD_DP32(flags, TBFLAG_A64, BT, 1);
DP_TBFLAG_A64(flags, BT, 1);
}
}
@ -13130,7 +13145,7 @@ static uint32_t rebuild_hflags_a64(CPUARMState *env, int el, int fp_el,
case ARMMMUIdx_SE10_1:
case ARMMMUIdx_SE10_1_PAN:
/* TODO: ARMv8.3-NV */
flags = FIELD_DP32(flags, TBFLAG_A64, UNPRIV, 1);
DP_TBFLAG_A64(flags, UNPRIV, 1);
break;
case ARMMMUIdx_E20_2:
case ARMMMUIdx_E20_2_PAN:
@ -13141,7 +13156,7 @@ static uint32_t rebuild_hflags_a64(CPUARMState *env, int el, int fp_el,
* gated by HCR_EL2.<E2H,TGE> == '11', and so is LDTR.
*/
if (env->cp15.hcr_el2 & HCR_TGE) {
flags = FIELD_DP32(flags, TBFLAG_A64, UNPRIV, 1);
DP_TBFLAG_A64(flags, UNPRIV, 1);
}
break;
default:
@ -13159,30 +13174,29 @@ static uint32_t rebuild_hflags_a64(CPUARMState *env, int el, int fp_el,
* 4) If no Allocation Tag Access, then all accesses are Unchecked.
*/
if (allocation_tag_access_enabled(env, el, sctlr)) {
flags = FIELD_DP32(flags, TBFLAG_A64, ATA, 1);
DP_TBFLAG_A64(flags, ATA, 1);
if (tbid
&& !(env->pstate & PSTATE_TCO)
&& (sctlr & (el == 0 ? SCTLR_TCF0 : SCTLR_TCF))) {
flags = FIELD_DP32(flags, TBFLAG_A64, MTE_ACTIVE, 1);
DP_TBFLAG_A64(flags, MTE_ACTIVE, 1);
}
}
/* And again for unprivileged accesses, if required. */
if (FIELD_EX32(flags, TBFLAG_A64, UNPRIV)
if (EX_TBFLAG_A64(flags, UNPRIV)
&& tbid
&& !(env->pstate & PSTATE_TCO)
&& (sctlr & SCTLR_TCF0)
&& allocation_tag_access_enabled(env, 0, sctlr)) {
flags = FIELD_DP32(flags, TBFLAG_A64, MTE0_ACTIVE, 1);
DP_TBFLAG_A64(flags, MTE0_ACTIVE, 1);
}
/* Cache TCMA as well as TBI. */
flags = FIELD_DP32(flags, TBFLAG_A64, TCMA,
aa64_va_parameter_tcma(tcr, mmu_idx));
DP_TBFLAG_A64(flags, TCMA, aa64_va_parameter_tcma(tcr, mmu_idx));
}
return rebuild_hflags_common(env, fp_el, mmu_idx, flags);
}
static uint32_t rebuild_hflags_internal(CPUARMState *env)
static CPUARMTBFlags rebuild_hflags_internal(CPUARMState *env)
{
int el = arm_current_el(env);
int fp_el = fp_exception_el(env, el);
@ -13211,6 +13225,7 @@ void HELPER(rebuild_hflags_m32_newel)(CPUARMState *env)
int el = arm_current_el(env);
int fp_el = fp_exception_el(env, el);
ARMMMUIdx mmu_idx = arm_mmu_idx_el(env, el);
env->hflags = rebuild_hflags_m32(env, fp_el, mmu_idx);
}
@ -13253,12 +13268,14 @@ void HELPER(rebuild_hflags_a64)(CPUARMState *env, int el)
static inline void assert_hflags_rebuild_correctly(CPUARMState *env)
{
#ifdef CONFIG_DEBUG_TCG
uint32_t env_flags_current = env->hflags;
uint32_t env_flags_rebuilt = rebuild_hflags_internal(env);
CPUARMTBFlags c = env->hflags;
CPUARMTBFlags r = rebuild_hflags_internal(env);
if (unlikely(env_flags_current != env_flags_rebuilt)) {
fprintf(stderr, "TCG hflags mismatch (current:0x%08x rebuilt:0x%08x)\n",
env_flags_current, env_flags_rebuilt);
if (unlikely(c.flags != r.flags || c.flags2 != r.flags2)) {
fprintf(stderr, "TCG hflags mismatch "
"(current:(0x%08x,0x" TARGET_FMT_lx ")"
" rebuilt:(0x%08x,0x" TARGET_FMT_lx ")\n",
c.flags, c.flags2, r.flags, r.flags2);
abort();
}
#endif
@ -13267,15 +13284,15 @@ static inline void assert_hflags_rebuild_correctly(CPUARMState *env)
void cpu_get_tb_cpu_state(CPUARMState *env, target_ulong *pc,
target_ulong *cs_base, uint32_t *pflags)
{
uint32_t flags = env->hflags;
CPUARMTBFlags flags;
*cs_base = 0;
assert_hflags_rebuild_correctly(env);
flags = env->hflags;
if (FIELD_EX32(flags, TBFLAG_ANY, AARCH64_STATE)) {
if (EX_TBFLAG_ANY(flags, AARCH64_STATE)) {
*pc = env->pc;
if (cpu_isar_feature(aa64_bti, env_archcpu(env))) {
flags = FIELD_DP32(flags, TBFLAG_A64, BTYPE, env->btype);
DP_TBFLAG_A64(flags, BTYPE, env->btype);
}
} else {
*pc = env->regs[15];
@ -13284,7 +13301,7 @@ void cpu_get_tb_cpu_state(CPUARMState *env, target_ulong *pc,
if (arm_feature(env, ARM_FEATURE_M_SECURITY) &&
FIELD_EX32(env->v7m.fpccr[M_REG_S], V7M_FPCCR, S)
!= env->v7m.secure) {
flags = FIELD_DP32(flags, TBFLAG_M32, FPCCR_S_WRONG, 1);
DP_TBFLAG_M32(flags, FPCCR_S_WRONG, 1);
}
if ((env->v7m.fpccr[env->v7m.secure] & R_V7M_FPCCR_ASPEN_MASK) &&
@ -13296,12 +13313,12 @@ void cpu_get_tb_cpu_state(CPUARMState *env, target_ulong *pc,
* active FP context; we must create a new FP context before
* executing any FP insn.
*/
flags = FIELD_DP32(flags, TBFLAG_M32, NEW_FP_CTXT_NEEDED, 1);
DP_TBFLAG_M32(flags, NEW_FP_CTXT_NEEDED, 1);
}
bool is_secure = env->v7m.fpccr[M_REG_S] & R_V7M_FPCCR_S_MASK;
if (env->v7m.fpccr[is_secure] & R_V7M_FPCCR_LSPACT_MASK) {
flags = FIELD_DP32(flags, TBFLAG_M32, LSPACT, 1);
DP_TBFLAG_M32(flags, LSPACT, 1);
}
} else {
/*
@ -13309,21 +13326,18 @@ void cpu_get_tb_cpu_state(CPUARMState *env, target_ulong *pc,
* Note that VECLEN+VECSTRIDE are RES0 for M-profile.
*/
if (arm_feature(env, ARM_FEATURE_XSCALE)) {
flags = FIELD_DP32(flags, TBFLAG_A32,
XSCALE_CPAR, env->cp15.c15_cpar);
DP_TBFLAG_A32(flags, XSCALE_CPAR, env->cp15.c15_cpar);
} else {
flags = FIELD_DP32(flags, TBFLAG_A32, VECLEN,
env->vfp.vec_len);
flags = FIELD_DP32(flags, TBFLAG_A32, VECSTRIDE,
env->vfp.vec_stride);
DP_TBFLAG_A32(flags, VECLEN, env->vfp.vec_len);
DP_TBFLAG_A32(flags, VECSTRIDE, env->vfp.vec_stride);
}
if (env->vfp.xregs[ARM_VFP_FPEXC] & (1 << 30)) {
flags = FIELD_DP32(flags, TBFLAG_A32, VFPEN, 1);
DP_TBFLAG_A32(flags, VFPEN, 1);
}
}
flags = FIELD_DP32(flags, TBFLAG_AM32, THUMB, env->thumb);
flags = FIELD_DP32(flags, TBFLAG_AM32, CONDEXEC, env->condexec_bits);
DP_TBFLAG_AM32(flags, THUMB, env->thumb);
DP_TBFLAG_AM32(flags, CONDEXEC, env->condexec_bits);
}
/*
@ -13333,14 +13347,14 @@ void cpu_get_tb_cpu_state(CPUARMState *env, target_ulong *pc,
* 0 x Inactive (the TB flag for SS is always 0)
* 1 0 Active-pending
* 1 1 Active-not-pending
* SS_ACTIVE is set in hflags; PSTATE_SS is computed every TB.
* SS_ACTIVE is set in hflags; PSTATE__SS is computed every TB.
*/
if (FIELD_EX32(flags, TBFLAG_ANY, SS_ACTIVE) &&
(env->pstate & PSTATE_SS)) {
flags = FIELD_DP32(flags, TBFLAG_ANY, PSTATE_SS, 1);
if (EX_TBFLAG_ANY(flags, SS_ACTIVE) && (env->pstate & PSTATE_SS)) {
DP_TBFLAG_ANY(flags, PSTATE__SS, 1);
}
*pflags = flags;
*pflags = flags.flags;
*cs_base = flags.flags2;
}
#ifdef TARGET_AARCH64

11
target/arm/internals.h
View File

@ -26,6 +26,7 @@
#define TARGET_ARM_INTERNALS_H
#include "hw/registerfields.h"
#include "tcg/tcg-gvec-desc.h"
#include "syndrome.h"
/* register banks for CPU modes */
@ -1142,14 +1143,10 @@ FIELD(MTEDESC, MIDX, 0, 4)
FIELD(MTEDESC, TBI, 4, 2)
FIELD(MTEDESC, TCMA, 6, 2)
FIELD(MTEDESC, WRITE, 8, 1)
FIELD(MTEDESC, ESIZE, 9, 5)
FIELD(MTEDESC, TSIZE, 14, 10) /* mte_checkN only */
FIELD(MTEDESC, SIZEM1, 9, SIMD_DATA_BITS - 9) /* size - 1 */
bool mte_probe1(CPUARMState *env, uint32_t desc, uint64_t ptr);
uint64_t mte_check1(CPUARMState *env, uint32_t desc,
uint64_t ptr, uintptr_t ra);
uint64_t mte_checkN(CPUARMState *env, uint32_t desc,
uint64_t ptr, uintptr_t ra);
bool mte_probe(CPUARMState *env, uint32_t desc, uint64_t ptr);
uint64_t mte_check(CPUARMState *env, uint32_t desc, uint64_t ptr, uintptr_t ra);
static inline int allocation_tag_from_addr(uint64_t ptr)
{

185
target/arm/mte_helper.c
View File

@ -121,7 +121,7 @@ static uint8_t *allocation_tag_mem(CPUARMState *env, int ptr_mmu_idx,
* exception for inaccessible pages, and resolves the virtual address
* into the softmmu tlb.
*
* When RA == 0, this is for mte_probe1. The page is expected to be
* When RA == 0, this is for mte_probe. The page is expected to be
* valid. Indicate to probe_access_flags no-fault, then assert that
* we received a valid page.
*/
@ -617,80 +617,6 @@ static void mte_check_fail(CPUARMState *env, uint32_t desc,
}
}
/*
* Perform an MTE checked access for a single logical or atomic access.
*/
static bool mte_probe1_int(CPUARMState *env, uint32_t desc, uint64_t ptr,
uintptr_t ra, int bit55)
{
int mem_tag, mmu_idx, ptr_tag, size;
MMUAccessType type;
uint8_t *mem;
ptr_tag = allocation_tag_from_addr(ptr);
if (tcma_check(desc, bit55, ptr_tag)) {
return true;
}
mmu_idx = FIELD_EX32(desc, MTEDESC, MIDX);
type = FIELD_EX32(desc, MTEDESC, WRITE) ? MMU_DATA_STORE : MMU_DATA_LOAD;
size = FIELD_EX32(desc, MTEDESC, ESIZE);
mem = allocation_tag_mem(env, mmu_idx, ptr, type, size,
MMU_DATA_LOAD, 1, ra);
if (!mem) {
return true;
}
mem_tag = load_tag1(ptr, mem);
return ptr_tag == mem_tag;
}
/*
* No-fault version of mte_check1, to be used by SVE for MemSingleNF.
* Returns false if the access is Checked and the check failed. This
* is only intended to probe the tag -- the validity of the page must
* be checked beforehand.
*/
bool mte_probe1(CPUARMState *env, uint32_t desc, uint64_t ptr)
{
int bit55 = extract64(ptr, 55, 1);
/* If TBI is disabled, the access is unchecked. */
if (unlikely(!tbi_check(desc, bit55))) {
return true;
}
return mte_probe1_int(env, desc, ptr, 0, bit55);
}
uint64_t mte_check1(CPUARMState *env, uint32_t desc,
uint64_t ptr, uintptr_t ra)
{
int bit55 = extract64(ptr, 55, 1);
/* If TBI is disabled, the access is unchecked, and ptr is not dirty. */
if (unlikely(!tbi_check(desc, bit55))) {
return ptr;
}
if (unlikely(!mte_probe1_int(env, desc, ptr, ra, bit55))) {
mte_check_fail(env, desc, ptr, ra);
}
return useronly_clean_ptr(ptr);
}
uint64_t HELPER(mte_check1)(CPUARMState *env, uint32_t desc, uint64_t ptr)
{
return mte_check1(env, desc, ptr, GETPC());
}
/*
* Perform an MTE checked access for multiple logical accesses.
*/
/**
* checkN:
* @tag: tag memory to test
@ -753,59 +679,70 @@ static int checkN(uint8_t *mem, int odd, int cmp, int count)
return n;
}
uint64_t mte_checkN(CPUARMState *env, uint32_t desc,
uint64_t ptr, uintptr_t ra)
/**
* mte_probe_int() - helper for mte_probe and mte_check
* @env: CPU environment
* @desc: MTEDESC descriptor
* @ptr: virtual address of the base of the access
* @fault: return virtual address of the first check failure
*
* Internal routine for both mte_probe and mte_check.
* Return zero on failure, filling in *fault.
* Return negative on trivial success for tbi disabled.
* Return positive on success with tbi enabled.
*/
static int mte_probe_int(CPUARMState *env, uint32_t desc, uint64_t ptr,
uintptr_t ra, uint64_t *fault)
{
int mmu_idx, ptr_tag, bit55;
uint64_t ptr_last, ptr_end, prev_page, next_page;
uint64_t tag_first, tag_end;
uint64_t tag_byte_first, tag_byte_end;
uint32_t esize, total, tag_count, tag_size, n, c;
uint64_t ptr_last, prev_page, next_page;
uint64_t tag_first, tag_last;
uint64_t tag_byte_first, tag_byte_last;
uint32_t sizem1, tag_count, tag_size, n, c;
uint8_t *mem1, *mem2;
MMUAccessType type;
bit55 = extract64(ptr, 55, 1);
*fault = ptr;
/* If TBI is disabled, the access is unchecked, and ptr is not dirty. */
if (unlikely(!tbi_check(desc, bit55))) {
return ptr;
return -1;
}
ptr_tag = allocation_tag_from_addr(ptr);
if (tcma_check(desc, bit55, ptr_tag)) {
goto done;
return 1;
}
mmu_idx = FIELD_EX32(desc, MTEDESC, MIDX);
type = FIELD_EX32(desc, MTEDESC, WRITE) ? MMU_DATA_STORE : MMU_DATA_LOAD;
esize = FIELD_EX32(desc, MTEDESC, ESIZE);
total = FIELD_EX32(desc, MTEDESC, TSIZE);
sizem1 = FIELD_EX32(desc, MTEDESC, SIZEM1);
/* Find the addr of the end of the access, and of the last element. */
ptr_end = ptr + total;
ptr_last = ptr_end - esize;
/* Find the addr of the end of the access */
ptr_last = ptr + sizem1;
/* Round the bounds to the tag granule, and compute the number of tags. */
tag_first = QEMU_ALIGN_DOWN(ptr, TAG_GRANULE);
tag_end = QEMU_ALIGN_UP(ptr_last, TAG_GRANULE);
tag_count = (tag_end - tag_first) / TAG_GRANULE;
tag_last = QEMU_ALIGN_DOWN(ptr_last, TAG_GRANULE);
tag_count = ((tag_last - tag_first) / TAG_GRANULE) + 1;
/* Round the bounds to twice the tag granule, and compute the bytes. */
tag_byte_first = QEMU_ALIGN_DOWN(ptr, 2 * TAG_GRANULE);
tag_byte_end = QEMU_ALIGN_UP(ptr_last, 2 * TAG_GRANULE);
tag_byte_last = QEMU_ALIGN_DOWN(ptr_last, 2 * TAG_GRANULE);
/* Locate the page boundaries. */
prev_page = ptr & TARGET_PAGE_MASK;
next_page = prev_page + TARGET_PAGE_SIZE;
if (likely(tag_end - prev_page <= TARGET_PAGE_SIZE)) {
if (likely(tag_last - prev_page <= TARGET_PAGE_SIZE)) {
/* Memory access stays on one page. */
tag_size = (tag_byte_end - tag_byte_first) / (2 * TAG_GRANULE);
mem1 = allocation_tag_mem(env, mmu_idx, ptr, type, total,
tag_size = ((tag_byte_last - tag_byte_first) / (2 * TAG_GRANULE)) + 1;
mem1 = allocation_tag_mem(env, mmu_idx, ptr, type, sizem1 + 1,
MMU_DATA_LOAD, tag_size, ra);
if (!mem1) {
goto done;
return 1;
}
/* Perform all of the comparisons. */
n = checkN(mem1, ptr & TAG_GRANULE, ptr_tag, tag_count);
@ -815,9 +752,9 @@ uint64_t mte_checkN(CPUARMState *env, uint32_t desc,
mem1 = allocation_tag_mem(env, mmu_idx, ptr, type, next_page - ptr,
MMU_DATA_LOAD, tag_size, ra);
tag_size = (tag_byte_end - next_page) / (2 * TAG_GRANULE);
tag_size = ((tag_byte_last - next_page) / (2 * TAG_GRANULE)) + 1;
mem2 = allocation_tag_mem(env, mmu_idx, next_page, type,
ptr_end - next_page,
ptr_last - next_page + 1,
MMU_DATA_LOAD, tag_size, ra);
/*
@ -831,31 +768,57 @@ uint64_t mte_checkN(CPUARMState *env, uint32_t desc,
}
if (n == c) {
if (!mem2) {
goto done;
return 1;
}
n += checkN(mem2, 0, ptr_tag, tag_count - c);
}
}
/*
* If we failed, we know which granule. Compute the element that
* is first in that granule, and signal failure on that element.
*/
if (unlikely(n < tag_count)) {
uint64_t fail_ofs;
fail_ofs = tag_first + n * TAG_GRANULE - ptr;
fail_ofs = ROUND_UP(fail_ofs, esize);
mte_check_fail(env, desc, ptr + fail_ofs, ra);
if (likely(n == tag_count)) {
return 1;
}
done:
/*
* If we failed, we know which granule. For the first granule, the
* failure address is @ptr, the first byte accessed. Otherwise the
* failure address is the first byte of the nth granule.
*/
if (n > 0) {
*fault = tag_first + n * TAG_GRANULE;
}
return 0;
}
uint64_t mte_check(CPUARMState *env, uint32_t desc, uint64_t ptr, uintptr_t ra)
{
uint64_t fault;
int ret = mte_probe_int(env, desc, ptr, ra, &fault);
if (unlikely(ret == 0)) {
mte_check_fail(env, desc, fault, ra);
} else if (ret < 0) {
return ptr;
}
return useronly_clean_ptr(ptr);
}
uint64_t HELPER(mte_checkN)(CPUARMState *env, uint32_t desc, uint64_t ptr)
uint64_t HELPER(mte_check)(CPUARMState *env, uint32_t desc, uint64_t ptr)
{
return mte_checkN(env, desc, ptr, GETPC());
return mte_check(env, desc, ptr, GETPC());
}
/*
* No-fault version of mte_check, to be used by SVE for MemSingleNF.
* Returns false if the access is Checked and the check failed. This
* is only intended to probe the tag -- the validity of the page must
* be checked beforehand.
*/
bool mte_probe(CPUARMState *env, uint32_t desc, uint64_t ptr)
{
uint64_t fault;
int ret = mte_probe_int(env, desc, ptr, 0, &fault);
return ret != 0;
}
/*

4
target/arm/neon-ls.decode
View File

@ -46,7 +46,7 @@ VLD_all_lanes 1111 0100 1 . 1 0 rn:4 .... 11 n:2 size:2 t:1 a:1 rm:4 \
VLDST_single 1111 0100 1 . l:1 0 rn:4 .... 00 n:2 reg_idx:3 align:1 rm:4 \
vd=%vd_dp size=0 stride=1
VLDST_single 1111 0100 1 . l:1 0 rn:4 .... 01 n:2 reg_idx:2 align:2 rm:4 \
VLDST_single 1111 0100 1 . l:1 0 rn:4 .... 01 n:2 reg_idx:2 . align:1 rm:4 \
vd=%vd_dp size=1 stride=%imm1_5_p1
VLDST_single 1111 0100 1 . l:1 0 rn:4 .... 10 n:2 reg_idx:1 align:3 rm:4 \
VLDST_single 1111 0100 1 . l:1 0 rn:4 .... 10 n:2 reg_idx:1 . align:2 rm:4 \
vd=%vd_dp size=2 stride=%imm1_6_p1

100
target/arm/sve_helper.c
View File

@ -4382,13 +4382,9 @@ static void sve_cont_ldst_watchpoints(SVEContLdSt *info, CPUARMState *env,
#endif
}
typedef uint64_t mte_check_fn(CPUARMState *, uint32_t, uint64_t, uintptr_t);
static inline QEMU_ALWAYS_INLINE
void sve_cont_ldst_mte_check_int(SVEContLdSt *info, CPUARMState *env,
uint64_t *vg, target_ulong addr, int esize,
int msize, uint32_t mtedesc, uintptr_t ra,
mte_check_fn *check)
static void sve_cont_ldst_mte_check(SVEContLdSt *info, CPUARMState *env,
uint64_t *vg, target_ulong addr, int esize,
int msize, uint32_t mtedesc, uintptr_t ra)
{
intptr_t mem_off, reg_off, reg_last;
@ -4405,7 +4401,7 @@ void sve_cont_ldst_mte_check_int(SVEContLdSt *info, CPUARMState *env,
uint64_t pg = vg[reg_off >> 6];
do {
if ((pg >> (reg_off & 63)) & 1) {
check(env, mtedesc, addr, ra);
mte_check(env, mtedesc, addr, ra);
}
reg_off += esize;
mem_off += msize;
@ -4422,7 +4418,7 @@ void sve_cont_ldst_mte_check_int(SVEContLdSt *info, CPUARMState *env,
uint64_t pg = vg[reg_off >> 6];
do {
if ((pg >> (reg_off & 63)) & 1) {
check(env, mtedesc, addr, ra);
mte_check(env, mtedesc, addr, ra);
}
reg_off += esize;
mem_off += msize;
@ -4431,30 +4427,6 @@ void sve_cont_ldst_mte_check_int(SVEContLdSt *info, CPUARMState *env,
}
}
typedef void sve_cont_ldst_mte_check_fn(SVEContLdSt *info, CPUARMState *env,
uint64_t *vg, target_ulong addr,
int esize, int msize, uint32_t mtedesc,
uintptr_t ra);
static void sve_cont_ldst_mte_check1(SVEContLdSt *info, CPUARMState *env,
uint64_t *vg, target_ulong addr,
int esize, int msize, uint32_t mtedesc,
uintptr_t ra)
{
sve_cont_ldst_mte_check_int(info, env, vg, addr, esize, msize,
mtedesc, ra, mte_check1);
}
static void sve_cont_ldst_mte_checkN(SVEContLdSt *info, CPUARMState *env,
uint64_t *vg, target_ulong addr,
int esize, int msize, uint32_t mtedesc,
uintptr_t ra)
{
sve_cont_ldst_mte_check_int(info, env, vg, addr, esize, msize,
mtedesc, ra, mte_checkN);
}
/*
* Common helper for all contiguous 1,2,3,4-register predicated stores.
*/
@ -4463,8 +4435,7 @@ void sve_ldN_r(CPUARMState *env, uint64_t *vg, const target_ulong addr,
uint32_t desc, const uintptr_t retaddr,
const int esz, const int msz, const int N, uint32_t mtedesc,
sve_ldst1_host_fn *host_fn,
sve_ldst1_tlb_fn *tlb_fn,
sve_cont_ldst_mte_check_fn *mte_check_fn)
sve_ldst1_tlb_fn *tlb_fn)
{
const unsigned rd = simd_data(desc);
const intptr_t reg_max = simd_oprsz(desc);
@ -4493,9 +4464,9 @@ void sve_ldN_r(CPUARMState *env, uint64_t *vg, const target_ulong addr,
* Handle mte checks for all active elements.
* Since TBI must be set for MTE, !mtedesc => !mte_active.
*/
if (mte_check_fn && mtedesc) {
mte_check_fn(&info, env, vg, addr, 1 << esz, N << msz,
mtedesc, retaddr);
if (mtedesc) {
sve_cont_ldst_mte_check(&info, env, vg, addr, 1 << esz, N << msz,
mtedesc, retaddr);
}
flags = info.page[0].flags | info.page[1].flags;
@ -4621,8 +4592,7 @@ void sve_ldN_r_mte(CPUARMState *env, uint64_t *vg, target_ulong addr,
mtedesc = 0;
}
sve_ldN_r(env, vg, addr, desc, ra, esz, msz, N, mtedesc, host_fn, tlb_fn,
N == 1 ? sve_cont_ldst_mte_check1 : sve_cont_ldst_mte_checkN);
sve_ldN_r(env, vg, addr, desc, ra, esz, msz, N, mtedesc, host_fn, tlb_fn);
}
#define DO_LD1_1(NAME, ESZ) \
@ -4630,7 +4600,7 @@ void HELPER(sve_##NAME##_r)(CPUARMState *env, void *vg, \
target_ulong addr, uint32_t desc) \
{ \
sve_ldN_r(env, vg, addr, desc, GETPC(), ESZ, MO_8, 1, 0, \
sve_##NAME##_host, sve_##NAME##_tlb, NULL); \
sve_##NAME##_host, sve_##NAME##_tlb); \
} \
void HELPER(sve_##NAME##_r_mte)(CPUARMState *env, void *vg, \
target_ulong addr, uint32_t desc) \
@ -4644,22 +4614,22 @@ void HELPER(sve_##NAME##_le_r)(CPUARMState *env, void *vg, \
target_ulong addr, uint32_t desc) \
{ \
sve_ldN_r(env, vg, addr, desc, GETPC(), ESZ, MSZ, 1, 0, \
sve_##NAME##_le_host, sve_##NAME##_le_tlb, NULL); \
sve_##NAME##_le_host, sve_##NAME##_le_tlb); \
} \
void HELPER(sve_##NAME##_be_r)(CPUARMState *env, void *vg, \
target_ulong addr, uint32_t desc) \
{ \
sve_ldN_r(env, vg, addr, desc, GETPC(), ESZ, MSZ, 1, 0, \
sve_##NAME##_be_host, sve_##NAME##_be_tlb, NULL); \
sve_##NAME##_be_host, sve_##NAME##_be_tlb); \
} \
void HELPER(sve_##NAME##_le_r_mte)(CPUARMState *env, void *vg, \
target_ulong addr, uint32_t desc) \
target_ulong addr, uint32_t desc) \
{ \
sve_ldN_r_mte(env, vg, addr, desc, GETPC(), ESZ, MSZ, 1, \
sve_##NAME##_le_host, sve_##NAME##_le_tlb); \
} \
void HELPER(sve_##NAME##_be_r_mte)(CPUARMState *env, void *vg, \
target_ulong addr, uint32_t desc) \
target_ulong addr, uint32_t desc) \
{ \
sve_ldN_r_mte(env, vg, addr, desc, GETPC(), ESZ, MSZ, 1, \
sve_##NAME##_be_host, sve_##NAME##_be_tlb); \
@ -4693,7 +4663,7 @@ void HELPER(sve_ld##N##bb_r)(CPUARMState *env, void *vg, \
target_ulong addr, uint32_t desc) \
{ \
sve_ldN_r(env, vg, addr, desc, GETPC(), MO_8, MO_8, N, 0, \
sve_ld1bb_host, sve_ld1bb_tlb, NULL); \
sve_ld1bb_host, sve_ld1bb_tlb); \
} \
void HELPER(sve_ld##N##bb_r_mte)(CPUARMState *env, void *vg, \
target_ulong addr, uint32_t desc) \
@ -4707,13 +4677,13 @@ void HELPER(sve_ld##N##SUFF##_le_r)(CPUARMState *env, void *vg, \
target_ulong addr, uint32_t desc) \
{ \
sve_ldN_r(env, vg, addr, desc, GETPC(), ESZ, ESZ, N, 0, \
sve_ld1##SUFF##_le_host, sve_ld1##SUFF##_le_tlb, NULL); \
sve_ld1##SUFF##_le_host, sve_ld1##SUFF##_le_tlb); \
} \
void HELPER(sve_ld##N##SUFF##_be_r)(CPUARMState *env, void *vg, \
target_ulong addr, uint32_t desc) \
{ \
sve_ldN_r(env, vg, addr, desc, GETPC(), ESZ, ESZ, N, 0, \
sve_ld1##SUFF##_be_host, sve_ld1##SUFF##_be_tlb, NULL); \
sve_ld1##SUFF##_be_host, sve_ld1##SUFF##_be_tlb); \
} \
void HELPER(sve_ld##N##SUFF##_le_r_mte)(CPUARMState *env, void *vg, \
target_ulong addr, uint32_t desc) \
@ -4826,7 +4796,7 @@ void sve_ldnfff1_r(CPUARMState *env, void *vg, const target_ulong addr,
if (fault == FAULT_FIRST) {
/* Trapping mte check for the first-fault element. */
if (mtedesc) {
mte_check1(env, mtedesc, addr + mem_off, retaddr);
mte_check(env, mtedesc, addr + mem_off, retaddr);
}
/*
@ -4869,7 +4839,7 @@ void sve_ldnfff1_r(CPUARMState *env, void *vg, const target_ulong addr,
/* Watchpoint hit, see below. */
goto do_fault;
}
if (mtedesc && !mte_probe1(env, mtedesc, addr + mem_off)) {
if (mtedesc && !mte_probe(env, mtedesc, addr + mem_off)) {
goto do_fault;
}
/*
@ -4919,7 +4889,7 @@ void sve_ldnfff1_r(CPUARMState *env, void *vg, const target_ulong addr,
& BP_MEM_READ)) {
goto do_fault;
}
if (mtedesc && !mte_probe1(env, mtedesc, addr + mem_off)) {
if (mtedesc && !mte_probe(env, mtedesc, addr + mem_off)) {
goto do_fault;
}
host_fn(vd, reg_off, host + mem_off);
@ -5090,8 +5060,7 @@ void sve_stN_r(CPUARMState *env, uint64_t *vg, target_ulong addr,
uint32_t desc, const uintptr_t retaddr,
const int esz, const int msz, const int N, uint32_t mtedesc,
sve_ldst1_host_fn *host_fn,
sve_ldst1_tlb_fn *tlb_fn,
sve_cont_ldst_mte_check_fn *mte_check_fn)
sve_ldst1_tlb_fn *tlb_fn)
{
const unsigned rd = simd_data(desc);
const intptr_t reg_max = simd_oprsz(desc);
@ -5117,9 +5086,9 @@ void sve_stN_r(CPUARMState *env, uint64_t *vg, target_ulong addr,
* Handle mte checks for all active elements.
* Since TBI must be set for MTE, !mtedesc => !mte_active.
*/
if (mte_check_fn && mtedesc) {
mte_check_fn(&info, env, vg, addr, 1 << esz, N << msz,
mtedesc, retaddr);
if (mtedesc) {
sve_cont_ldst_mte_check(&info, env, vg, addr, 1 << esz, N << msz,
mtedesc, retaddr);
}
flags = info.page[0].flags | info.page[1].flags;
@ -5233,8 +5202,7 @@ void sve_stN_r_mte(CPUARMState *env, uint64_t *vg, target_ulong addr,
mtedesc = 0;
}
sve_stN_r(env, vg, addr, desc, ra, esz, msz, N, mtedesc, host_fn, tlb_fn,
N == 1 ? sve_cont_ldst_mte_check1 : sve_cont_ldst_mte_checkN);
sve_stN_r(env, vg, addr, desc, ra, esz, msz, N, mtedesc, host_fn, tlb_fn);
}
#define DO_STN_1(N, NAME, ESZ) \
@ -5242,7 +5210,7 @@ void HELPER(sve_st##N##NAME##_r)(CPUARMState *env, void *vg, \
target_ulong addr, uint32_t desc) \
{ \
sve_stN_r(env, vg, addr, desc, GETPC(), ESZ, MO_8, N, 0, \
sve_st1##NAME##_host, sve_st1##NAME##_tlb, NULL); \
sve_st1##NAME##_host, sve_st1##NAME##_tlb); \
} \
void HELPER(sve_st##N##NAME##_r_mte)(CPUARMState *env, void *vg, \
target_ulong addr, uint32_t desc) \
@ -5256,13 +5224,13 @@ void HELPER(sve_st##N##NAME##_le_r)(CPUARMState *env, void *vg, \
target_ulong addr, uint32_t desc) \
{ \
sve_stN_r(env, vg, addr, desc, GETPC(), ESZ, MSZ, N, 0, \
sve_st1##NAME##_le_host, sve_st1##NAME##_le_tlb, NULL); \
sve_st1##NAME##_le_host, sve_st1##NAME##_le_tlb); \
} \
void HELPER(sve_st##N##NAME##_be_r)(CPUARMState *env, void *vg, \
target_ulong addr, uint32_t desc) \
{ \
sve_stN_r(env, vg, addr, desc, GETPC(), ESZ, MSZ, N, 0, \
sve_st1##NAME##_be_host, sve_st1##NAME##_be_tlb, NULL); \
sve_st1##NAME##_be_host, sve_st1##NAME##_be_tlb); \
} \
void HELPER(sve_st##N##NAME##_le_r_mte)(CPUARMState *env, void *vg, \
target_ulong addr, uint32_t desc) \
@ -5373,7 +5341,7 @@ void sve_ld1_z(CPUARMState *env, void *vd, uint64_t *vg, void *vm,
info.attrs, BP_MEM_READ, retaddr);
}
if (mtedesc && arm_tlb_mte_tagged(&info.attrs)) {
mte_check1(env, mtedesc, addr, retaddr);
mte_check(env, mtedesc, addr, retaddr);
}
host_fn(&scratch, reg_off, info.host);
} else {
@ -5386,7 +5354,7 @@ void sve_ld1_z(CPUARMState *env, void *vd, uint64_t *vg, void *vm,
BP_MEM_READ, retaddr);
}
if (mtedesc && arm_tlb_mte_tagged(&info.attrs)) {
mte_check1(env, mtedesc, addr, retaddr);
mte_check(env, mtedesc, addr, retaddr);
}
tlb_fn(env, &scratch, reg_off, addr, retaddr);
}
@ -5552,7 +5520,7 @@ void sve_ldff1_z(CPUARMState *env, void *vd, uint64_t *vg, void *vm,
*/
addr = base + (off_fn(vm, reg_off) << scale);
if (mtedesc) {
mte_check1(env, mtedesc, addr, retaddr);
mte_check(env, mtedesc, addr, retaddr);
}
tlb_fn(env, vd, reg_off, addr, retaddr);
@ -5588,7 +5556,7 @@ void sve_ldff1_z(CPUARMState *env, void *vd, uint64_t *vg, void *vm,
}
if (mtedesc &&
arm_tlb_mte_tagged(&info.attrs) &&
!mte_probe1(env, mtedesc, addr)) {
!mte_probe(env, mtedesc, addr)) {
goto fault;
}
@ -5773,7 +5741,7 @@ void sve_st1_z(CPUARMState *env, void *vd, uint64_t *vg, void *vm,
}
if (mtedesc && arm_tlb_mte_tagged(&info.attrs)) {
mte_check1(env, mtedesc, addr, retaddr);
mte_check(env, mtedesc, addr, retaddr);
}
}
i += 1;

236
target/arm/translate-a64.c
View File

@ -272,11 +272,11 @@ static TCGv_i64 gen_mte_check1_mmuidx(DisasContext *s, TCGv_i64 addr,
desc = FIELD_DP32(desc, MTEDESC, TBI, s->tbid);
desc = FIELD_DP32(desc, MTEDESC, TCMA, s->tcma);
desc = FIELD_DP32(desc, MTEDESC, WRITE, is_write);
desc = FIELD_DP32(desc, MTEDESC, ESIZE, 1 << log2_size);
desc = FIELD_DP32(desc, MTEDESC, SIZEM1, (1 << log2_size) - 1);
tcg_desc = tcg_const_i32(desc);
ret = new_tmp_a64(s);
gen_helper_mte_check1(ret, cpu_env, tcg_desc, addr);
gen_helper_mte_check(ret, cpu_env, tcg_desc, addr);
tcg_temp_free_i32(tcg_desc);
return ret;
@ -295,9 +295,9 @@ TCGv_i64 gen_mte_check1(DisasContext *s, TCGv_i64 addr, bool is_write,
* For MTE, check multiple logical sequential accesses.
*/
TCGv_i64 gen_mte_checkN(DisasContext *s, TCGv_i64 addr, bool is_write,
bool tag_checked, int log2_esize, int total_size)
bool tag_checked, int size)
{
if (tag_checked && s->mte_active[0] && total_size != (1 << log2_esize)) {
if (tag_checked && s->mte_active[0]) {
TCGv_i32 tcg_desc;
TCGv_i64 ret;
int desc = 0;
@ -306,17 +306,16 @@ TCGv_i64 gen_mte_checkN(DisasContext *s, TCGv_i64 addr, bool is_write,
desc = FIELD_DP32(desc, MTEDESC, TBI, s->tbid);
desc = FIELD_DP32(desc, MTEDESC, TCMA, s->tcma);
desc = FIELD_DP32(desc, MTEDESC, WRITE, is_write);
desc = FIELD_DP32(desc, MTEDESC, ESIZE, 1 << log2_esize);
desc = FIELD_DP32(desc, MTEDESC, TSIZE, total_size);
desc = FIELD_DP32(desc, MTEDESC, SIZEM1, size - 1);
tcg_desc = tcg_const_i32(desc);
ret = new_tmp_a64(s);
gen_helper_mte_checkN(ret, cpu_env, tcg_desc, addr);
gen_helper_mte_check(ret, cpu_env, tcg_desc, addr);
tcg_temp_free_i32(tcg_desc);
return ret;
}
return gen_mte_check1(s, addr, is_write, tag_checked, log2_esize);
return clean_data_tbi(s, addr);
}
typedef struct DisasCompare64 {
@ -887,19 +886,19 @@ static void gen_adc_CC(int sf, TCGv_i64 dest, TCGv_i64 t0, TCGv_i64 t1)
* Store from GPR register to memory.
*/
static void do_gpr_st_memidx(DisasContext *s, TCGv_i64 source,
TCGv_i64 tcg_addr, int size, int memidx,
TCGv_i64 tcg_addr, MemOp memop, int memidx,
bool iss_valid,
unsigned int iss_srt,
bool iss_sf, bool iss_ar)
{
g_assert(size <= 3);
tcg_gen_qemu_st_i64(source, tcg_addr, memidx, s->be_data + size);
memop = finalize_memop(s, memop);
tcg_gen_qemu_st_i64(source, tcg_addr, memidx, memop);
if (iss_valid) {
uint32_t syn;
syn = syn_data_abort_with_iss(0,
size,
(memop & MO_SIZE),
false,
iss_srt,
iss_sf,
@ -910,37 +909,28 @@ static void do_gpr_st_memidx(DisasContext *s, TCGv_i64 source,
}
static void do_gpr_st(DisasContext *s, TCGv_i64 source,
TCGv_i64 tcg_addr, int size,
TCGv_i64 tcg_addr, MemOp memop,
bool iss_valid,
unsigned int iss_srt,
bool iss_sf, bool iss_ar)
{
do_gpr_st_memidx(s, source, tcg_addr, size, get_mem_index(s),
do_gpr_st_memidx(s, source, tcg_addr, memop, get_mem_index(s),
iss_valid, iss_srt, iss_sf, iss_ar);
}
/*
* Load from memory to GPR register
*/
static void do_gpr_ld_memidx(DisasContext *s,
TCGv_i64 dest, TCGv_i64 tcg_addr,
int size, bool is_signed,
bool extend, int memidx,
static void do_gpr_ld_memidx(DisasContext *s, TCGv_i64 dest, TCGv_i64 tcg_addr,
MemOp memop, bool extend, int memidx,
bool iss_valid, unsigned int iss_srt,
bool iss_sf, bool iss_ar)
{
MemOp memop = s->be_data + size;
g_assert(size <= 3);
if (is_signed) {
memop += MO_SIGN;
}
memop = finalize_memop(s, memop);
tcg_gen_qemu_ld_i64(dest, tcg_addr, memidx, memop);
if (extend && is_signed) {
g_assert(size < 3);
if (extend && (memop & MO_SIGN)) {
g_assert((memop & MO_SIZE) <= MO_32);
tcg_gen_ext32u_i64(dest, dest);
}
@ -948,8 +938,8 @@ static void do_gpr_ld_memidx(DisasContext *s,
uint32_t syn;
syn = syn_data_abort_with_iss(0,
size,
is_signed,
(memop & MO_SIZE),
(memop & MO_SIGN) != 0,
iss_srt,
iss_sf,
iss_ar,
@ -958,14 +948,12 @@ static void do_gpr_ld_memidx(DisasContext *s,
}
}
static void do_gpr_ld(DisasContext *s,
TCGv_i64 dest, TCGv_i64 tcg_addr,
int size, bool is_signed, bool extend,
static void do_gpr_ld(DisasContext *s, TCGv_i64 dest, TCGv_i64 tcg_addr,
MemOp memop, bool extend,
bool iss_valid, unsigned int iss_srt,
bool iss_sf, bool iss_ar)
{
do_gpr_ld_memidx(s, dest, tcg_addr, size, is_signed, extend,
get_mem_index(s),
do_gpr_ld_memidx(s, dest, tcg_addr, memop, extend, get_mem_index(s),
iss_valid, iss_srt, iss_sf, iss_ar);
}
@ -975,25 +963,33 @@ static void do_gpr_ld(DisasContext *s,
static void do_fp_st(DisasContext *s, int srcidx, TCGv_i64 tcg_addr, int size)
{
/* This writes the bottom N bits of a 128 bit wide vector to memory */
TCGv_i64 tmp = tcg_temp_new_i64();
tcg_gen_ld_i64(tmp, cpu_env, fp_reg_offset(s, srcidx, MO_64));
TCGv_i64 tmplo = tcg_temp_new_i64();
MemOp mop;
tcg_gen_ld_i64(tmplo, cpu_env, fp_reg_offset(s, srcidx, MO_64));
if (size < 4) {
tcg_gen_qemu_st_i64(tmp, tcg_addr, get_mem_index(s),
s->be_data + size);
mop = finalize_memop(s, size);
tcg_gen_qemu_st_i64(tmplo, tcg_addr, get_mem_index(s), mop);
} else {
bool be = s->be_data == MO_BE;
TCGv_i64 tcg_hiaddr = tcg_temp_new_i64();
TCGv_i64 tmphi = tcg_temp_new_i64();
tcg_gen_ld_i64(tmphi, cpu_env, fp_reg_hi_offset(s, srcidx));
mop = s->be_data | MO_Q;
tcg_gen_qemu_st_i64(be ? tmphi : tmplo, tcg_addr, get_mem_index(s),
mop | (s->align_mem ? MO_ALIGN_16 : 0));
tcg_gen_addi_i64(tcg_hiaddr, tcg_addr, 8);
tcg_gen_qemu_st_i64(tmp, be ? tcg_hiaddr : tcg_addr, get_mem_index(s),
s->be_data | MO_Q);
tcg_gen_ld_i64(tmp, cpu_env, fp_reg_hi_offset(s, srcidx));
tcg_gen_qemu_st_i64(tmp, be ? tcg_addr : tcg_hiaddr, get_mem_index(s),
s->be_data | MO_Q);
tcg_gen_qemu_st_i64(be ? tmplo : tmphi, tcg_hiaddr,
get_mem_index(s), mop);
tcg_temp_free_i64(tcg_hiaddr);
tcg_temp_free_i64(tmphi);
}
tcg_temp_free_i64(tmp);
tcg_temp_free_i64(tmplo);
}
/*
@ -1004,10 +1000,11 @@ static void do_fp_ld(DisasContext *s, int destidx, TCGv_i64 tcg_addr, int size)
/* This always zero-extends and writes to a full 128 bit wide vector */
TCGv_i64 tmplo = tcg_temp_new_i64();
TCGv_i64 tmphi = NULL;
MemOp mop;
if (size < 4) {
MemOp memop = s->be_data + size;
tcg_gen_qemu_ld_i64(tmplo, tcg_addr, get_mem_index(s), memop);
mop = finalize_memop(s, size);
tcg_gen_qemu_ld_i64(tmplo, tcg_addr, get_mem_index(s), mop);
} else {
bool be = s->be_data == MO_BE;
TCGv_i64 tcg_hiaddr;
@ -1015,11 +1012,12 @@ static void do_fp_ld(DisasContext *s, int destidx, TCGv_i64 tcg_addr, int size)
tmphi = tcg_temp_new_i64();
tcg_hiaddr = tcg_temp_new_i64();
mop = s->be_data | MO_Q;
tcg_gen_qemu_ld_i64(be ? tmphi : tmplo, tcg_addr, get_mem_index(s),
mop | (s->align_mem ? MO_ALIGN_16 : 0));
tcg_gen_addi_i64(tcg_hiaddr, tcg_addr, 8);
tcg_gen_qemu_ld_i64(tmplo, be ? tcg_hiaddr : tcg_addr, get_mem_index(s),
s->be_data | MO_Q);
tcg_gen_qemu_ld_i64(tmphi, be ? tcg_addr : tcg_hiaddr, get_mem_index(s),
s->be_data | MO_Q);
tcg_gen_qemu_ld_i64(be ? tmplo : tmphi, tcg_hiaddr,
get_mem_index(s), mop);
tcg_temp_free_i64(tcg_hiaddr);
}
@ -1148,24 +1146,24 @@ static void write_vec_element_i32(DisasContext *s, TCGv_i32 tcg_src,
/* Store from vector register to memory */
static void do_vec_st(DisasContext *s, int srcidx, int element,
TCGv_i64 tcg_addr, int size, MemOp endian)
TCGv_i64 tcg_addr, MemOp mop)
{
TCGv_i64 tcg_tmp = tcg_temp_new_i64();
read_vec_element(s, tcg_tmp, srcidx, element, size);
tcg_gen_qemu_st_i64(tcg_tmp, tcg_addr, get_mem_index(s), endian | size);
read_vec_element(s, tcg_tmp, srcidx, element, mop & MO_SIZE);
tcg_gen_qemu_st_i64(tcg_tmp, tcg_addr, get_mem_index(s), mop);
tcg_temp_free_i64(tcg_tmp);
}
/* Load from memory to vector register */
static void do_vec_ld(DisasContext *s, int destidx, int element,
TCGv_i64 tcg_addr, int size, MemOp endian)
TCGv_i64 tcg_addr, MemOp mop)
{
TCGv_i64 tcg_tmp = tcg_temp_new_i64();
tcg_gen_qemu_ld_i64(tcg_tmp, tcg_addr, get_mem_index(s), endian | size);
write_vec_element(s, tcg_tmp, destidx, element, size);
tcg_gen_qemu_ld_i64(tcg_tmp, tcg_addr, get_mem_index(s), mop);
write_vec_element(s, tcg_tmp, destidx, element, mop & MO_SIZE);
tcg_temp_free_i64(tcg_tmp);
}
@ -2701,7 +2699,8 @@ static void disas_ldst_excl(DisasContext *s, uint32_t insn)
tcg_gen_mb(TCG_MO_ALL | TCG_BAR_STRL);
clean_addr = gen_mte_check1(s, cpu_reg_sp(s, rn),
true, rn != 31, size);
do_gpr_st(s, cpu_reg(s, rt), clean_addr, size, true, rt,
/* TODO: ARMv8.4-LSE SCTLR.nAA */
do_gpr_st(s, cpu_reg(s, rt), clean_addr, size | MO_ALIGN, true, rt,
disas_ldst_compute_iss_sf(size, false, 0), is_lasr);
return;
@ -2718,8 +2717,9 @@ static void disas_ldst_excl(DisasContext *s, uint32_t insn)
}
clean_addr = gen_mte_check1(s, cpu_reg_sp(s, rn),
false, rn != 31, size);
do_gpr_ld(s, cpu_reg(s, rt), clean_addr, size, false, false, true, rt,
disas_ldst_compute_iss_sf(size, false, 0), is_lasr);
/* TODO: ARMv8.4-LSE SCTLR.nAA */
do_gpr_ld(s, cpu_reg(s, rt), clean_addr, size | MO_ALIGN, false, true,
rt, disas_ldst_compute_iss_sf(size, false, 0), is_lasr);
tcg_gen_mb(TCG_MO_ALL | TCG_BAR_LDAQ);
return;
@ -2831,8 +2831,8 @@ static void disas_ld_lit(DisasContext *s, uint32_t insn)
/* Only unsigned 32bit loads target 32bit registers. */
bool iss_sf = opc != 0;
do_gpr_ld(s, tcg_rt, clean_addr, size, is_signed, false,
true, rt, iss_sf, false);
do_gpr_ld(s, tcg_rt, clean_addr, size + is_signed * MO_SIGN,
false, true, rt, iss_sf, false);
}
tcg_temp_free_i64(clean_addr);
}
@ -2966,8 +2966,7 @@ static void disas_ldst_pair(DisasContext *s, uint32_t insn)
}
clean_addr = gen_mte_checkN(s, dirty_addr, !is_load,
(wback || rn != 31) && !set_tag,
size, 2 << size);
(wback || rn != 31) && !set_tag, 2 << size);
if (is_vector) {
if (is_load) {
@ -2991,11 +2990,11 @@ static void disas_ldst_pair(DisasContext *s, uint32_t insn)
/* Do not modify tcg_rt before recognizing any exception
* from the second load.
*/
do_gpr_ld(s, tmp, clean_addr, size, is_signed, false,
false, 0, false, false);
do_gpr_ld(s, tmp, clean_addr, size + is_signed * MO_SIGN,
false, false, 0, false, false);
tcg_gen_addi_i64(clean_addr, clean_addr, 1 << size);
do_gpr_ld(s, tcg_rt2, clean_addr, size, is_signed, false,
false, 0, false, false);
do_gpr_ld(s, tcg_rt2, clean_addr, size + is_signed * MO_SIGN,
false, false, 0, false, false);
tcg_gen_mov_i64(tcg_rt, tmp);
tcg_temp_free_i64(tmp);
@ -3126,8 +3125,8 @@ static void disas_ldst_reg_imm9(DisasContext *s, uint32_t insn,
do_gpr_st_memidx(s, tcg_rt, clean_addr, size, memidx,
iss_valid, rt, iss_sf, false);
} else {
do_gpr_ld_memidx(s, tcg_rt, clean_addr, size,
is_signed, is_extended, memidx,
do_gpr_ld_memidx(s, tcg_rt, clean_addr, size + is_signed * MO_SIGN,
is_extended, memidx,
iss_valid, rt, iss_sf, false);
}
}
@ -3231,9 +3230,8 @@ static void disas_ldst_reg_roffset(DisasContext *s, uint32_t insn,
do_gpr_st(s, tcg_rt, clean_addr, size,
true, rt, iss_sf, false);
} else {
do_gpr_ld(s, tcg_rt, clean_addr, size,
is_signed, is_extended,
true, rt, iss_sf, false);
do_gpr_ld(s, tcg_rt, clean_addr, size + is_signed * MO_SIGN,
is_extended, true, rt, iss_sf, false);
}
}
}
@ -3316,8 +3314,8 @@ static void disas_ldst_reg_unsigned_imm(DisasContext *s, uint32_t insn,
do_gpr_st(s, tcg_rt, clean_addr, size,
true, rt, iss_sf, false);
} else {
do_gpr_ld(s, tcg_rt, clean_addr, size, is_signed, is_extended,
true, rt, iss_sf, false);
do_gpr_ld(s, tcg_rt, clean_addr, size + is_signed * MO_SIGN,
is_extended, true, rt, iss_sf, false);
}
}
}
@ -3404,7 +3402,7 @@ static void disas_ldst_atomic(DisasContext *s, uint32_t insn,
* full load-acquire (we only need "load-acquire processor consistent"),
* but we choose to implement them as full LDAQ.
*/
do_gpr_ld(s, cpu_reg(s, rt), clean_addr, size, false, false,
do_gpr_ld(s, cpu_reg(s, rt), clean_addr, size, false,
true, rt, disas_ldst_compute_iss_sf(size, false, 0), true);
tcg_gen_mb(TCG_MO_ALL | TCG_BAR_LDAQ);
return;
@ -3477,7 +3475,7 @@ static void disas_ldst_pac(DisasContext *s, uint32_t insn,
is_wback || rn != 31, size);
tcg_rt = cpu_reg(s, rt);
do_gpr_ld(s, tcg_rt, clean_addr, size, /* is_signed */ false,
do_gpr_ld(s, tcg_rt, clean_addr, size,
/* extend */ false, /* iss_valid */ !is_wback,
/* iss_srt */ rt, /* iss_sf */ true, /* iss_ar */ false);
@ -3509,15 +3507,18 @@ static void disas_ldst_ldapr_stlr(DisasContext *s, uint32_t insn)
int size = extract32(insn, 30, 2);
TCGv_i64 clean_addr, dirty_addr;
bool is_store = false;
bool is_signed = false;
bool extend = false;
bool iss_sf;
MemOp mop;
if (!dc_isar_feature(aa64_rcpc_8_4, s)) {
unallocated_encoding(s);
return;
}
/* TODO: ARMv8.4-LSE SCTLR.nAA */
mop = size | MO_ALIGN;
switch (opc) {
case 0: /* STLURB */
is_store = true;
@ -3529,21 +3530,21 @@ static void disas_ldst_ldapr_stlr(DisasContext *s, uint32_t insn)
unallocated_encoding(s);
return;
}
is_signed = true;
mop |= MO_SIGN;
break;
case 3: /* LDAPURS* 32-bit variant */
if (size > 1) {
unallocated_encoding(s);
return;
}
is_signed = true;
mop |= MO_SIGN;
extend = true; /* zero-extend 32->64 after signed load */
break;
default:
g_assert_not_reached();
}
iss_sf = disas_ldst_compute_iss_sf(size, is_signed, opc);
iss_sf = disas_ldst_compute_iss_sf(size, (mop & MO_SIGN) != 0, opc);
if (rn == 31) {
gen_check_sp_alignment(s);
@ -3556,14 +3557,14 @@ static void disas_ldst_ldapr_stlr(DisasContext *s, uint32_t insn)
if (is_store) {
/* Store-Release semantics */
tcg_gen_mb(TCG_MO_ALL | TCG_BAR_STRL);
do_gpr_st(s, cpu_reg(s, rt), clean_addr, size, true, rt, iss_sf, true);
do_gpr_st(s, cpu_reg(s, rt), clean_addr, mop, true, rt, iss_sf, true);
} else {
/*
* Load-AcquirePC semantics; we implement as the slightly more
* restrictive Load-Acquire.
*/
do_gpr_ld(s, cpu_reg(s, rt), clean_addr, size, is_signed, extend,
true, rt, iss_sf, true);
do_gpr_ld(s, cpu_reg(s, rt), clean_addr, mop,
extend, true, rt, iss_sf, true);
tcg_gen_mb(TCG_MO_ALL | TCG_BAR_LDAQ);
}
}
@ -3634,7 +3635,7 @@ static void disas_ldst_multiple_struct(DisasContext *s, uint32_t insn)
bool is_postidx = extract32(insn, 23, 1);
bool is_q = extract32(insn, 30, 1);
TCGv_i64 clean_addr, tcg_rn, tcg_ebytes;
MemOp endian = s->be_data;
MemOp endian, align, mop;
int total; /* total bytes */
int elements; /* elements per vector */
@ -3702,6 +3703,7 @@ static void disas_ldst_multiple_struct(DisasContext *s, uint32_t insn)
}
/* For our purposes, bytes are always little-endian. */
endian = s->be_data;
if (size == 0) {
endian = MO_LE;
}
@ -3714,17 +3716,23 @@ static void disas_ldst_multiple_struct(DisasContext *s, uint32_t insn)
* promote consecutive little-endian elements below.
*/
clean_addr = gen_mte_checkN(s, tcg_rn, is_store, is_postidx || rn != 31,
size, total);
total);
/*
* Consecutive little-endian elements from a single register
* can be promoted to a larger little-endian operation.
*/
align = MO_ALIGN;
if (selem == 1 && endian == MO_LE) {
align = pow2_align(size);
size = 3;
}
elements = (is_q ? 16 : 8) >> size;
if (!s->align_mem) {
align = 0;
}
mop = endian | size | align;
elements = (is_q ? 16 : 8) >> size;
tcg_ebytes = tcg_const_i64(1 << size);
for (r = 0; r < rpt; r++) {
int e;
@ -3733,9 +3741,9 @@ static void disas_ldst_multiple_struct(DisasContext *s, uint32_t insn)
for (xs = 0; xs < selem; xs++) {
int tt = (rt + r + xs) % 32;
if (is_store) {
do_vec_st(s, tt, e, clean_addr, size, endian);
do_vec_st(s, tt, e, clean_addr, mop);
} else {
do_vec_ld(s, tt, e, clean_addr, size, endian);
do_vec_ld(s, tt, e, clean_addr, mop);
}
tcg_gen_add_i64(clean_addr, clean_addr, tcg_ebytes);
}
@ -3807,6 +3815,7 @@ static void disas_ldst_single_struct(DisasContext *s, uint32_t insn)
int index = is_q << 3 | S << 2 | size;
int xs, total;
TCGv_i64 clean_addr, tcg_rn, tcg_ebytes;
MemOp mop;
if (extract32(insn, 31, 1)) {
unallocated_encoding(s);
@ -3867,7 +3876,8 @@ static void disas_ldst_single_struct(DisasContext *s, uint32_t insn)
tcg_rn = cpu_reg_sp(s, rn);
clean_addr = gen_mte_checkN(s, tcg_rn, !is_load, is_postidx || rn != 31,
scale, total);
total);
mop = finalize_memop(s, scale);
tcg_ebytes = tcg_const_i64(1 << scale);
for (xs = 0; xs < selem; xs++) {
@ -3875,8 +3885,7 @@ static void disas_ldst_single_struct(DisasContext *s, uint32_t insn)
/* Load and replicate to all elements */
TCGv_i64 tcg_tmp = tcg_temp_new_i64();
tcg_gen_qemu_ld_i64(tcg_tmp, clean_addr,
get_mem_index(s), s->be_data + scale);
tcg_gen_qemu_ld_i64(tcg_tmp, clean_addr, get_mem_index(s), mop);
tcg_gen_gvec_dup_i64(scale, vec_full_reg_offset(s, rt),
(is_q + 1) * 8, vec_full_reg_size(s),
tcg_tmp);
@ -3884,9 +3893,9 @@ static void disas_ldst_single_struct(DisasContext *s, uint32_t insn)
} else {
/* Load/store one element per register */
if (is_load) {
do_vec_ld(s, rt, index, clean_addr, scale, s->be_data);
do_vec_ld(s, rt, index, clean_addr, mop);
} else {
do_vec_st(s, rt, index, clean_addr, scale, s->be_data);
do_vec_st(s, rt, index, clean_addr, mop);
}
}
tcg_gen_add_i64(clean_addr, clean_addr, tcg_ebytes);
@ -14672,7 +14681,7 @@ static void aarch64_tr_init_disas_context(DisasContextBase *dcbase,
DisasContext *dc = container_of(dcbase, DisasContext, base);
CPUARMState *env = cpu->env_ptr;
ARMCPU *arm_cpu = env_archcpu(env);
uint32_t tb_flags = dc->base.tb->flags;
CPUARMTBFlags tb_flags = arm_tbflags_from_tb(dc->base.tb);
int bound, core_mmu_idx;
dc->isar = &arm_cpu->isar;
@ -14686,28 +14695,29 @@ static void aarch64_tr_init_disas_context(DisasContextBase *dcbase,
!arm_el_is_aa64(env, 3);
dc->thumb = 0;
dc->sctlr_b = 0;
dc->be_data = FIELD_EX32(tb_flags, TBFLAG_ANY, BE_DATA) ? MO_BE : MO_LE;
dc->be_data = EX_TBFLAG_ANY(tb_flags, BE_DATA) ? MO_BE : MO_LE;
dc->condexec_mask = 0;
dc->condexec_cond = 0;
core_mmu_idx = FIELD_EX32(tb_flags, TBFLAG_ANY, MMUIDX);
core_mmu_idx = EX_TBFLAG_ANY(tb_flags, MMUIDX);
dc->mmu_idx = core_to_aa64_mmu_idx(core_mmu_idx);
dc->tbii = FIELD_EX32(tb_flags, TBFLAG_A64, TBII);
dc->tbid = FIELD_EX32(tb_flags, TBFLAG_A64, TBID);
dc->tcma = FIELD_EX32(tb_flags, TBFLAG_A64, TCMA);
dc->tbii = EX_TBFLAG_A64(tb_flags, TBII);
dc->tbid = EX_TBFLAG_A64(tb_flags, TBID);
dc->tcma = EX_TBFLAG_A64(tb_flags, TCMA);
dc->current_el = arm_mmu_idx_to_el(dc->mmu_idx);
#if !defined(CONFIG_USER_ONLY)
dc->user = (dc->current_el == 0);
#endif
dc->fp_excp_el = FIELD_EX32(tb_flags, TBFLAG_ANY, FPEXC_EL);
dc->sve_excp_el = FIELD_EX32(tb_flags, TBFLAG_A64, SVEEXC_EL);
dc->sve_len = (FIELD_EX32(tb_flags, TBFLAG_A64, ZCR_LEN) + 1) * 16;
dc->pauth_active = FIELD_EX32(tb_flags, TBFLAG_A64, PAUTH_ACTIVE);
dc->bt = FIELD_EX32(tb_flags, TBFLAG_A64, BT);
dc->btype = FIELD_EX32(tb_flags, TBFLAG_A64, BTYPE);
dc->unpriv = FIELD_EX32(tb_flags, TBFLAG_A64, UNPRIV);
dc->ata = FIELD_EX32(tb_flags, TBFLAG_A64, ATA);
dc->mte_active[0] = FIELD_EX32(tb_flags, TBFLAG_A64, MTE_ACTIVE);
dc->mte_active[1] = FIELD_EX32(tb_flags, TBFLAG_A64, MTE0_ACTIVE);
dc->fp_excp_el = EX_TBFLAG_ANY(tb_flags, FPEXC_EL);
dc->align_mem = EX_TBFLAG_ANY(tb_flags, ALIGN_MEM);
dc->sve_excp_el = EX_TBFLAG_A64(tb_flags, SVEEXC_EL);
dc->sve_len = (EX_TBFLAG_A64(tb_flags, ZCR_LEN) + 1) * 16;
dc->pauth_active = EX_TBFLAG_A64(tb_flags, PAUTH_ACTIVE);
dc->bt = EX_TBFLAG_A64(tb_flags, BT);
dc->btype = EX_TBFLAG_A64(tb_flags, BTYPE);
dc->unpriv = EX_TBFLAG_A64(tb_flags, UNPRIV);
dc->ata = EX_TBFLAG_A64(tb_flags, ATA);
dc->mte_active[0] = EX_TBFLAG_A64(tb_flags, MTE_ACTIVE);
dc->mte_active[1] = EX_TBFLAG_A64(tb_flags, MTE0_ACTIVE);
dc->vec_len = 0;
dc->vec_stride = 0;
dc->cp_regs = arm_cpu->cp_regs;
@ -14734,10 +14744,10 @@ static void aarch64_tr_init_disas_context(DisasContextBase *dcbase,
* emit code to generate a software step exception
* end the TB
*/
dc->ss_active = FIELD_EX32(tb_flags, TBFLAG_ANY, SS_ACTIVE);
dc->pstate_ss = FIELD_EX32(tb_flags, TBFLAG_ANY, PSTATE_SS);
dc->ss_active = EX_TBFLAG_ANY(tb_flags, SS_ACTIVE);
dc->pstate_ss = EX_TBFLAG_ANY(tb_flags, PSTATE__SS);
dc->is_ldex = false;
dc->debug_target_el = FIELD_EX32(tb_flags, TBFLAG_ANY, DEBUG_TARGET_EL);
dc->debug_target_el = EX_TBFLAG_ANY(tb_flags, DEBUG_TARGET_EL);
/* Bound the number of insns to execute to those left on the page. */
bound = -(dc->base.pc_first | TARGET_PAGE_MASK) / 4;

2
target/arm/translate-a64.h
View File

@ -44,7 +44,7 @@ TCGv_i64 clean_data_tbi(DisasContext *s, TCGv_i64 addr);
TCGv_i64 gen_mte_check1(DisasContext *s, TCGv_i64 addr, bool is_write,
bool tag_checked, int log2_size);
TCGv_i64 gen_mte_checkN(DisasContext *s, TCGv_i64 addr, bool is_write,
bool tag_checked, int count, int log2_esize);
bool tag_checked, int size);
/* We should have at some point before trying to access an FP register
* done the necessary access check, so assert that

117
target/arm/translate-neon.c.inc
View File

@ -429,7 +429,7 @@ static bool trans_VLDST_multiple(DisasContext *s, arg_VLDST_multiple *a)
{
/* Neon load/store multiple structures */
int nregs, interleave, spacing, reg, n;
MemOp endian = s->be_data;
MemOp mop, align, endian;
int mmu_idx = get_mem_index(s);
int size = a->size;
TCGv_i64 tmp64;
@ -473,20 +473,36 @@ static bool trans_VLDST_multiple(DisasContext *s, arg_VLDST_multiple *a)
}
/* For our purposes, bytes are always little-endian. */
endian = s->be_data;
if (size == 0) {
endian = MO_LE;
}
/* Enforce alignment requested by the instruction */
if (a->align) {
align = pow2_align(a->align + 2); /* 4 ** a->align */
} else {
align = s->align_mem ? MO_ALIGN : 0;
}
/*
* Consecutive little-endian elements from a single register
* can be promoted to a larger little-endian operation.
*/
if (interleave == 1 && endian == MO_LE) {
/* Retain any natural alignment. */
if (align == MO_ALIGN) {
align = pow2_align(size);
}
size = 3;
}
tmp64 = tcg_temp_new_i64();
addr = tcg_temp_new_i32();
tmp = tcg_const_i32(1 << size);
load_reg_var(s, addr, a->rn);
mop = endian | size | align;
for (reg = 0; reg < nregs; reg++) {
for (n = 0; n < 8 >> size; n++) {
int xs;
@ -494,13 +510,16 @@ static bool trans_VLDST_multiple(DisasContext *s, arg_VLDST_multiple *a)
int tt = a->vd + reg + spacing * xs;
if (a->l) {
gen_aa32_ld_i64(s, tmp64, addr, mmu_idx, endian | size);
gen_aa32_ld_internal_i64(s, tmp64, addr, mmu_idx, mop);
neon_store_element64(tt, n, size, tmp64);
} else {
neon_load_element64(tmp64, tt, n, size);
gen_aa32_st_i64(s, tmp64, addr, mmu_idx, endian | size);
gen_aa32_st_internal_i64(s, tmp64, addr, mmu_idx, mop);
}
tcg_gen_add_i32(addr, addr, tmp);
/* Subsequent memory operations inherit alignment */
mop &= ~MO_AMASK;
}
}
}
@ -520,6 +539,7 @@ static bool trans_VLD_all_lanes(DisasContext *s, arg_VLD_all_lanes *a)
int size = a->size;
int nregs = a->n + 1;
TCGv_i32 addr, tmp;
MemOp mop, align;
if (!arm_dc_feature(s, ARM_FEATURE_NEON)) {
return false;
@ -530,18 +550,33 @@ static bool trans_VLD_all_lanes(DisasContext *s, arg_VLD_all_lanes *a)
return false;
}
align = 0;
if (size == 3) {
if (nregs != 4 || a->a == 0) {
return false;
}
/* For VLD4 size == 3 a == 1 means 32 bits at 16 byte alignment */
size = 2;
}
if (nregs == 1 && a->a == 1 && size == 0) {
return false;
}
if (nregs == 3 && a->a == 1) {
return false;
size = MO_32;
align = MO_ALIGN_16;
} else if (a->a) {
switch (nregs) {
case 1:
if (size == 0) {
return false;
}
align = MO_ALIGN;
break;
case 2:
align = pow2_align(size + 1);
break;
case 3:
return false;
case 4:
align = pow2_align(size + 2);
break;
default:
g_assert_not_reached();
}
}
if (!vfp_access_check(s)) {
@ -554,13 +589,12 @@ static bool trans_VLD_all_lanes(DisasContext *s, arg_VLD_all_lanes *a)
*/
stride = a->t ? 2 : 1;
vec_size = nregs == 1 ? stride * 8 : 8;
mop = size | align;
tmp = tcg_temp_new_i32();
addr = tcg_temp_new_i32();
load_reg_var(s, addr, a->rn);
for (reg = 0; reg < nregs; reg++) {
gen_aa32_ld_i32(s, tmp, addr, get_mem_index(s),
s->be_data | size);
gen_aa32_ld_i32(s, tmp, addr, get_mem_index(s), mop);
if ((vd & 1) && vec_size == 16) {
/*
* We cannot write 16 bytes at once because the
@ -576,6 +610,9 @@ static bool trans_VLD_all_lanes(DisasContext *s, arg_VLD_all_lanes *a)
}
tcg_gen_addi_i32(addr, addr, 1 << size);
vd += stride;
/* Subsequent memory operations inherit alignment */
mop &= ~MO_AMASK;
}
tcg_temp_free_i32(tmp);
tcg_temp_free_i32(addr);
@ -592,6 +629,7 @@ static bool trans_VLDST_single(DisasContext *s, arg_VLDST_single *a)
int nregs = a->n + 1;
int vd = a->vd;
TCGv_i32 addr, tmp;
MemOp mop;
if (!arm_dc_feature(s, ARM_FEATURE_NEON)) {
return false;
@ -606,7 +644,7 @@ static bool trans_VLDST_single(DisasContext *s, arg_VLDST_single *a)
switch (nregs) {
case 1:
if (((a->align & (1 << a->size)) != 0) ||
(a->size == 2 && ((a->align & 3) == 1 || (a->align & 3) == 2))) {
(a->size == 2 && (a->align == 1 || a->align == 2))) {
return false;
}
break;
@ -621,7 +659,7 @@ static bool trans_VLDST_single(DisasContext *s, arg_VLDST_single *a)
}
break;
case 4:
if ((a->size == 2) && ((a->align & 3) == 3)) {
if (a->size == 2 && a->align == 3) {
return false;
}
break;
@ -641,25 +679,58 @@ static bool trans_VLDST_single(DisasContext *s, arg_VLDST_single *a)
return true;
}
/* Pick up SCTLR settings */
mop = finalize_memop(s, a->size);
if (a->align) {
MemOp align_op;
switch (nregs) {
case 1:
/* For VLD1, use natural alignment. */
align_op = MO_ALIGN;
break;
case 2:
/* For VLD2, use double alignment. */
align_op = pow2_align(a->size + 1);
break;
case 4:
if (a->size == MO_32) {
/*
* For VLD4.32, align = 1 is double alignment, align = 2 is
* quad alignment; align = 3 is rejected above.
*/
align_op = pow2_align(a->size + a->align);
} else {
/* For VLD4.8 and VLD.16, we want quad alignment. */
align_op = pow2_align(a->size + 2);
}
break;
default:
/* For VLD3, the alignment field is zero and rejected above. */
g_assert_not_reached();
}
mop = (mop & ~MO_AMASK) | align_op;
}
tmp = tcg_temp_new_i32();
addr = tcg_temp_new_i32();
load_reg_var(s, addr, a->rn);
/*
* TODO: if we implemented alignment exceptions, we should check
* addr against the alignment encoded in a->align here.
*/
for (reg = 0; reg < nregs; reg++) {
if (a->l) {
gen_aa32_ld_i32(s, tmp, addr, get_mem_index(s),
s->be_data | a->size);
gen_aa32_ld_internal_i32(s, tmp, addr, get_mem_index(s), mop);
neon_store_element(vd, a->reg_idx, a->size, tmp);
} else { /* Store */
neon_load_element(tmp, vd, a->reg_idx, a->size);
gen_aa32_st_i32(s, tmp, addr, get_mem_index(s),
s->be_data | a->size);
gen_aa32_st_internal_i32(s, tmp, addr, get_mem_index(s), mop);
}
vd += a->stride;
tcg_gen_addi_i32(addr, addr, 1 << a->size);
/* Subsequent memory operations inherit alignment */
mop &= ~MO_AMASK;
}
tcg_temp_free_i32(addr);
tcg_temp_free_i32(tmp);

11
target/arm/translate-sve.c
View File

@ -4264,7 +4264,7 @@ static void do_ldr(DisasContext *s, uint32_t vofs, int len, int rn, int imm)
dirty_addr = tcg_temp_new_i64();
tcg_gen_addi_i64(dirty_addr, cpu_reg_sp(s, rn), imm);
clean_addr = gen_mte_checkN(s, dirty_addr, false, rn != 31, len, MO_8);
clean_addr = gen_mte_checkN(s, dirty_addr, false, rn != 31, len);
tcg_temp_free_i64(dirty_addr);
/*
@ -4352,7 +4352,7 @@ static void do_str(DisasContext *s, uint32_t vofs, int len, int rn, int imm)
dirty_addr = tcg_temp_new_i64();
tcg_gen_addi_i64(dirty_addr, cpu_reg_sp(s, rn), imm);
clean_addr = gen_mte_checkN(s, dirty_addr, false, rn != 31, len, MO_8);
clean_addr = gen_mte_checkN(s, dirty_addr, false, rn != 31, len);
tcg_temp_free_i64(dirty_addr);
/* Note that unpredicated load/store of vector/predicate registers
@ -4509,8 +4509,7 @@ static void do_mem_zpa(DisasContext *s, int zt, int pg, TCGv_i64 addr,
desc = FIELD_DP32(desc, MTEDESC, TBI, s->tbid);
desc = FIELD_DP32(desc, MTEDESC, TCMA, s->tcma);
desc = FIELD_DP32(desc, MTEDESC, WRITE, is_write);
desc = FIELD_DP32(desc, MTEDESC, ESIZE, 1 << msz);
desc = FIELD_DP32(desc, MTEDESC, TSIZE, mte_n << msz);
desc = FIELD_DP32(desc, MTEDESC, SIZEM1, (mte_n << msz) - 1);
desc <<= SVE_MTEDESC_SHIFT;
} else {
addr = clean_data_tbi(s, addr);
@ -5002,7 +5001,7 @@ static bool trans_LD1R_zpri(DisasContext *s, arg_rpri_load *a)
clean_addr = gen_mte_check1(s, temp, false, true, msz);
tcg_gen_qemu_ld_i64(temp, clean_addr, get_mem_index(s),
s->be_data | dtype_mop[a->dtype]);
finalize_memop(s, dtype_mop[a->dtype]));
/* Broadcast to *all* elements. */
tcg_gen_gvec_dup_i64(esz, vec_full_reg_offset(s, a->rd),
@ -5189,7 +5188,7 @@ static void do_mem_zpz(DisasContext *s, int zt, int pg, int zm,
desc = FIELD_DP32(desc, MTEDESC, TBI, s->tbid);
desc = FIELD_DP32(desc, MTEDESC, TCMA, s->tcma);
desc = FIELD_DP32(desc, MTEDESC, WRITE, is_write);
desc = FIELD_DP32(desc, MTEDESC, ESIZE, 1 << msz);
desc = FIELD_DP32(desc, MTEDESC, SIZEM1, (1 << msz) - 1);
desc <<= SVE_MTEDESC_SHIFT;
}
desc = simd_desc(vsz, vsz, desc | scale);

20
target/arm/translate-vfp.c.inc
View File

@ -1364,11 +1364,11 @@ static bool trans_VLDR_VSTR_hp(DisasContext *s, arg_VLDR_VSTR_sp *a)
addr = add_reg_for_lit(s, a->rn, offset);
tmp = tcg_temp_new_i32();
if (a->l) {
gen_aa32_ld16u(s, tmp, addr, get_mem_index(s));
gen_aa32_ld_i32(s, tmp, addr, get_mem_index(s), MO_UW | MO_ALIGN);
vfp_store_reg32(tmp, a->vd);
} else {
vfp_load_reg32(tmp, a->vd);
gen_aa32_st16(s, tmp, addr, get_mem_index(s));
gen_aa32_st_i32(s, tmp, addr, get_mem_index(s), MO_UW | MO_ALIGN);
}
tcg_temp_free_i32(tmp);
tcg_temp_free_i32(addr);
@ -1398,11 +1398,11 @@ static bool trans_VLDR_VSTR_sp(DisasContext *s, arg_VLDR_VSTR_sp *a)
addr = add_reg_for_lit(s, a->rn, offset);
tmp = tcg_temp_new_i32();
if (a->l) {
gen_aa32_ld32u(s, tmp, addr, get_mem_index(s));
gen_aa32_ld_i32(s, tmp, addr, get_mem_index(s), MO_UL | MO_ALIGN);
vfp_store_reg32(tmp, a->vd);
} else {
vfp_load_reg32(tmp, a->vd);
gen_aa32_st32(s, tmp, addr, get_mem_index(s));
gen_aa32_st_i32(s, tmp, addr, get_mem_index(s), MO_UL | MO_ALIGN);
}
tcg_temp_free_i32(tmp);
tcg_temp_free_i32(addr);
@ -1439,11 +1439,11 @@ static bool trans_VLDR_VSTR_dp(DisasContext *s, arg_VLDR_VSTR_dp *a)
addr = add_reg_for_lit(s, a->rn, offset);
tmp = tcg_temp_new_i64();
if (a->l) {
gen_aa32_ld64(s, tmp, addr, get_mem_index(s));
gen_aa32_ld_i64(s, tmp, addr, get_mem_index(s), MO_Q | MO_ALIGN_4);
vfp_store_reg64(tmp, a->vd);
} else {
vfp_load_reg64(tmp, a->vd);
gen_aa32_st64(s, tmp, addr, get_mem_index(s));
gen_aa32_st_i64(s, tmp, addr, get_mem_index(s), MO_Q | MO_ALIGN_4);
}
tcg_temp_free_i64(tmp);
tcg_temp_free_i32(addr);
@ -1503,12 +1503,12 @@ static bool trans_VLDM_VSTM_sp(DisasContext *s, arg_VLDM_VSTM_sp *a)
for (i = 0; i < n; i++) {
if (a->l) {
/* load */
gen_aa32_ld32u(s, tmp, addr, get_mem_index(s));
gen_aa32_ld_i32(s, tmp, addr, get_mem_index(s), MO_UL | MO_ALIGN);
vfp_store_reg32(tmp, a->vd + i);
} else {
/* store */
vfp_load_reg32(tmp, a->vd + i);
gen_aa32_st32(s, tmp, addr, get_mem_index(s));
gen_aa32_st_i32(s, tmp, addr, get_mem_index(s), MO_UL | MO_ALIGN);
}
tcg_gen_addi_i32(addr, addr, offset);
}
@ -1586,12 +1586,12 @@ static bool trans_VLDM_VSTM_dp(DisasContext *s, arg_VLDM_VSTM_dp *a)
for (i = 0; i < n; i++) {
if (a->l) {
/* load */
gen_aa32_ld64(s, tmp, addr, get_mem_index(s));
gen_aa32_ld_i64(s, tmp, addr, get_mem_index(s), MO_Q | MO_ALIGN_4);
vfp_store_reg64(tmp, a->vd + i);
} else {
/* store */
vfp_load_reg64(tmp, a->vd + i);
gen_aa32_st64(s, tmp, addr, get_mem_index(s));
gen_aa32_st_i64(s, tmp, addr, get_mem_index(s), MO_Q | MO_ALIGN_4);
}
tcg_gen_addi_i32(addr, addr, offset);
}

274
target/arm/translate.c
View File

@ -908,7 +908,23 @@ static inline void store_reg_from_load(DisasContext *s, int reg, TCGv_i32 var)
#define IS_USER_ONLY 0
#endif
/* Abstractions of "generate code to do a guest load/store for
MemOp pow2_align(unsigned i)
{
static const MemOp mop_align[] = {
0, MO_ALIGN_2, MO_ALIGN_4, MO_ALIGN_8, MO_ALIGN_16,
/*
* FIXME: TARGET_PAGE_BITS_MIN affects TLB_FLAGS_MASK such
* that 256-bit alignment (MO_ALIGN_32) cannot be supported:
* see get_alignment_bits(). Enforce only 128-bit alignment for now.
*/
MO_ALIGN_16
};
g_assert(i < ARRAY_SIZE(mop_align));
return mop_align[i];
}
/*
* Abstractions of "generate code to do a guest load/store for
* AArch32", where a vaddr is always 32 bits (and is zero
* extended if we're a 64 bit core) and data is also
* 32 bits unless specifically doing a 64 bit access.
@ -916,7 +932,7 @@ static inline void store_reg_from_load(DisasContext *s, int reg, TCGv_i32 var)
* that the address argument is TCGv_i32 rather than TCGv.
*/
static inline TCGv gen_aa32_addr(DisasContext *s, TCGv_i32 a32, MemOp op)
static TCGv gen_aa32_addr(DisasContext *s, TCGv_i32 a32, MemOp op)
{
TCGv addr = tcg_temp_new();
tcg_gen_extu_i32_tl(addr, a32);
@ -928,80 +944,47 @@ static inline TCGv gen_aa32_addr(DisasContext *s, TCGv_i32 a32, MemOp op)
return addr;
}
static void gen_aa32_ld_i32(DisasContext *s, TCGv_i32 val, TCGv_i32 a32,
int index, MemOp opc)
/*
* Internal routines are used for NEON cases where the endianness
* and/or alignment has already been taken into account and manipulated.
*/
static void gen_aa32_ld_internal_i32(DisasContext *s, TCGv_i32 val,
TCGv_i32 a32, int index, MemOp opc)
{
TCGv addr;
if (arm_dc_feature(s, ARM_FEATURE_M) &&
!arm_dc_feature(s, ARM_FEATURE_M_MAIN)) {
opc |= MO_ALIGN;
}
addr = gen_aa32_addr(s, a32, opc);
TCGv addr = gen_aa32_addr(s, a32, opc);
tcg_gen_qemu_ld_i32(val, addr, index, opc);
tcg_temp_free(addr);
}
static void gen_aa32_st_i32(DisasContext *s, TCGv_i32 val, TCGv_i32 a32,
int index, MemOp opc)
static void gen_aa32_st_internal_i32(DisasContext *s, TCGv_i32 val,
TCGv_i32 a32, int index, MemOp opc)
{
TCGv addr;
if (arm_dc_feature(s, ARM_FEATURE_M) &&
!arm_dc_feature(s, ARM_FEATURE_M_MAIN)) {
opc |= MO_ALIGN;
}
addr = gen_aa32_addr(s, a32, opc);
TCGv addr = gen_aa32_addr(s, a32, opc);
tcg_gen_qemu_st_i32(val, addr, index, opc);
tcg_temp_free(addr);
}
#define DO_GEN_LD(SUFF, OPC) \
static inline void gen_aa32_ld##SUFF(DisasContext *s, TCGv_i32 val, \
TCGv_i32 a32, int index) \
{ \
gen_aa32_ld_i32(s, val, a32, index, OPC | s->be_data); \
}
#define DO_GEN_ST(SUFF, OPC) \
static inline void gen_aa32_st##SUFF(DisasContext *s, TCGv_i32 val, \
TCGv_i32 a32, int index) \
{ \
gen_aa32_st_i32(s, val, a32, index, OPC | s->be_data); \
}
static inline void gen_aa32_frob64(DisasContext *s, TCGv_i64 val)
{
/* Not needed for user-mode BE32, where we use MO_BE instead. */
if (!IS_USER_ONLY && s->sctlr_b) {
tcg_gen_rotri_i64(val, val, 32);
}
}
static void gen_aa32_ld_i64(DisasContext *s, TCGv_i64 val, TCGv_i32 a32,
int index, MemOp opc)
static void gen_aa32_ld_internal_i64(DisasContext *s, TCGv_i64 val,
TCGv_i32 a32, int index, MemOp opc)
{
TCGv addr = gen_aa32_addr(s, a32, opc);
tcg_gen_qemu_ld_i64(val, addr, index, opc);
gen_aa32_frob64(s, val);
/* Not needed for user-mode BE32, where we use MO_BE instead. */
if (!IS_USER_ONLY && s->sctlr_b && (opc & MO_SIZE) == MO_64) {
tcg_gen_rotri_i64(val, val, 32);
}
tcg_temp_free(addr);
}
static inline void gen_aa32_ld64(DisasContext *s, TCGv_i64 val,
TCGv_i32 a32, int index)
{
gen_aa32_ld_i64(s, val, a32, index, MO_Q | s->be_data);
}
static void gen_aa32_st_i64(DisasContext *s, TCGv_i64 val, TCGv_i32 a32,
int index, MemOp opc)
static void gen_aa32_st_internal_i64(DisasContext *s, TCGv_i64 val,
TCGv_i32 a32, int index, MemOp opc)
{
TCGv addr = gen_aa32_addr(s, a32, opc);
/* Not needed for user-mode BE32, where we use MO_BE instead. */
if (!IS_USER_ONLY && s->sctlr_b) {
if (!IS_USER_ONLY && s->sctlr_b && (opc & MO_SIZE) == MO_64) {
TCGv_i64 tmp = tcg_temp_new_i64();
tcg_gen_rotri_i64(tmp, val, 32);
tcg_gen_qemu_st_i64(tmp, addr, index, opc);
@ -1012,10 +995,54 @@ static void gen_aa32_st_i64(DisasContext *s, TCGv_i64 val, TCGv_i32 a32,
tcg_temp_free(addr);
}
static void gen_aa32_ld_i32(DisasContext *s, TCGv_i32 val, TCGv_i32 a32,
int index, MemOp opc)
{
gen_aa32_ld_internal_i32(s, val, a32, index, finalize_memop(s, opc));
}
static void gen_aa32_st_i32(DisasContext *s, TCGv_i32 val, TCGv_i32 a32,
int index, MemOp opc)
{
gen_aa32_st_internal_i32(s, val, a32, index, finalize_memop(s, opc));
}
static void gen_aa32_ld_i64(DisasContext *s, TCGv_i64 val, TCGv_i32 a32,
int index, MemOp opc)
{
gen_aa32_ld_internal_i64(s, val, a32, index, finalize_memop(s, opc));
}
static void gen_aa32_st_i64(DisasContext *s, TCGv_i64 val, TCGv_i32 a32,
int index, MemOp opc)
{
gen_aa32_st_internal_i64(s, val, a32, index, finalize_memop(s, opc));
}
#define DO_GEN_LD(SUFF, OPC) \
static inline void gen_aa32_ld##SUFF(DisasContext *s, TCGv_i32 val, \
TCGv_i32 a32, int index) \
{ \
gen_aa32_ld_i32(s, val, a32, index, OPC); \
}
#define DO_GEN_ST(SUFF, OPC) \
static inline void gen_aa32_st##SUFF(DisasContext *s, TCGv_i32 val, \
TCGv_i32 a32, int index) \
{ \
gen_aa32_st_i32(s, val, a32, index, OPC); \
}
static inline void gen_aa32_ld64(DisasContext *s, TCGv_i64 val,
TCGv_i32 a32, int index)
{
gen_aa32_ld_i64(s, val, a32, index, MO_Q);
}
static inline void gen_aa32_st64(DisasContext *s, TCGv_i64 val,
TCGv_i32 a32, int index)
{
gen_aa32_st_i64(s, val, a32, index, MO_Q | s->be_data);
gen_aa32_st_i64(s, val, a32, index, MO_Q);
}
DO_GEN_LD(8u, MO_UB)
@ -4984,16 +5011,13 @@ static void gen_load_exclusive(DisasContext *s, int rt, int rt2,
TCGv_i32 tmp2 = tcg_temp_new_i32();
TCGv_i64 t64 = tcg_temp_new_i64();
/* For AArch32, architecturally the 32-bit word at the lowest
/*
* For AArch32, architecturally the 32-bit word at the lowest
* address is always Rt and the one at addr+4 is Rt2, even if
* the CPU is big-endian. That means we don't want to do a
* gen_aa32_ld_i64(), which invokes gen_aa32_frob64() as if
* for an architecturally 64-bit access, but instead do a
* 64-bit access using MO_BE if appropriate and then split
* the two halves.
* This only makes a difference for BE32 user-mode, where
* frob64() must not flip the two halves of the 64-bit data
* but this code must treat BE32 user-mode like BE32 system.
* gen_aa32_ld_i64(), which checks SCTLR_B as if for an
* architecturally 64-bit access, but instead do a 64-bit access
* using MO_BE if appropriate and then split the two halves.
*/
TCGv taddr = gen_aa32_addr(s, addr, opc);
@ -5053,14 +5077,15 @@ static void gen_store_exclusive(DisasContext *s, int rd, int rt, int rt2,
TCGv_i64 n64 = tcg_temp_new_i64();
t2 = load_reg(s, rt2);
/* For AArch32, architecturally the 32-bit word at the lowest
/*
* For AArch32, architecturally the 32-bit word at the lowest
* address is always Rt and the one at addr+4 is Rt2, even if
* the CPU is big-endian. Since we're going to treat this as a
* single 64-bit BE store, we need to put the two halves in the
* opposite order for BE to LE, so that they end up in the right
* places.
* We don't want gen_aa32_frob64() because that does the wrong
* thing for BE32 usermode.
* places. We don't want gen_aa32_st_i64, because that checks
* SCTLR_B as if for an architectural 64-bit access.
*/
if (s->be_data == MO_BE) {
tcg_gen_concat_i32_i64(n64, t2, t1);
@ -5190,11 +5215,11 @@ static void gen_srs(DisasContext *s,
}
tcg_gen_addi_i32(addr, addr, offset);
tmp = load_reg(s, 14);
gen_aa32_st32(s, tmp, addr, get_mem_index(s));
gen_aa32_st_i32(s, tmp, addr, get_mem_index(s), MO_UL | MO_ALIGN);
tcg_temp_free_i32(tmp);
tmp = load_cpu_field(spsr);
tcg_gen_addi_i32(addr, addr, 4);
gen_aa32_st32(s, tmp, addr, get_mem_index(s));
gen_aa32_st_i32(s, tmp, addr, get_mem_index(s), MO_UL | MO_ALIGN);
tcg_temp_free_i32(tmp);
if (writeback) {
switch (amode) {
@ -6458,7 +6483,7 @@ static bool op_load_rr(DisasContext *s, arg_ldst_rr *a,
addr = op_addr_rr_pre(s, a);
tmp = tcg_temp_new_i32();
gen_aa32_ld_i32(s, tmp, addr, mem_idx, mop | s->be_data);
gen_aa32_ld_i32(s, tmp, addr, mem_idx, mop);
disas_set_da_iss(s, mop, issinfo);
/*
@ -6476,10 +6501,18 @@ static bool op_store_rr(DisasContext *s, arg_ldst_rr *a,
ISSInfo issinfo = make_issinfo(s, a->rt, a->p, a->w) | ISSIsWrite;
TCGv_i32 addr, tmp;
/*
* In Thumb encodings of stores Rn=1111 is UNDEF; for Arm it
* is either UNPREDICTABLE or has defined behaviour
*/
if (s->thumb && a->rn == 15) {
return false;
}
addr = op_addr_rr_pre(s, a);
tmp = load_reg(s, a->rt);
gen_aa32_st_i32(s, tmp, addr, mem_idx, mop | s->be_data);
gen_aa32_st_i32(s, tmp, addr, mem_idx, mop);
disas_set_da_iss(s, mop, issinfo);
tcg_temp_free_i32(tmp);
@ -6502,13 +6535,13 @@ static bool trans_LDRD_rr(DisasContext *s, arg_ldst_rr *a)
addr = op_addr_rr_pre(s, a);
tmp = tcg_temp_new_i32();
gen_aa32_ld_i32(s, tmp, addr, mem_idx, MO_UL | s->be_data);
gen_aa32_ld_i32(s, tmp, addr, mem_idx, MO_UL | MO_ALIGN);
store_reg(s, a->rt, tmp);
tcg_gen_addi_i32(addr, addr, 4);
tmp = tcg_temp_new_i32();
gen_aa32_ld_i32(s, tmp, addr, mem_idx, MO_UL | s->be_data);
gen_aa32_ld_i32(s, tmp, addr, mem_idx, MO_UL | MO_ALIGN);
store_reg(s, a->rt + 1, tmp);
/* LDRD w/ base writeback is undefined if the registers overlap. */
@ -6531,13 +6564,13 @@ static bool trans_STRD_rr(DisasContext *s, arg_ldst_rr *a)
addr = op_addr_rr_pre(s, a);
tmp = load_reg(s, a->rt);
gen_aa32_st_i32(s, tmp, addr, mem_idx, MO_UL | s->be_data);
gen_aa32_st_i32(s, tmp, addr, mem_idx, MO_UL | MO_ALIGN);
tcg_temp_free_i32(tmp);
tcg_gen_addi_i32(addr, addr, 4);
tmp = load_reg(s, a->rt + 1);
gen_aa32_st_i32(s, tmp, addr, mem_idx, MO_UL | s->be_data);
gen_aa32_st_i32(s, tmp, addr, mem_idx, MO_UL | MO_ALIGN);
tcg_temp_free_i32(tmp);
op_addr_rr_post(s, a, addr, -4);
@ -6602,7 +6635,7 @@ static bool op_load_ri(DisasContext *s, arg_ldst_ri *a,
addr = op_addr_ri_pre(s, a);
tmp = tcg_temp_new_i32();
gen_aa32_ld_i32(s, tmp, addr, mem_idx, mop | s->be_data);
gen_aa32_ld_i32(s, tmp, addr, mem_idx, mop);
disas_set_da_iss(s, mop, issinfo);
/*
@ -6620,10 +6653,18 @@ static bool op_store_ri(DisasContext *s, arg_ldst_ri *a,
ISSInfo issinfo = make_issinfo(s, a->rt, a->p, a->w) | ISSIsWrite;
TCGv_i32 addr, tmp;
/*
* In Thumb encodings of stores Rn=1111 is UNDEF; for Arm it
* is either UNPREDICTABLE or has defined behaviour
*/
if (s->thumb && a->rn == 15) {
return false;
}
addr = op_addr_ri_pre(s, a);
tmp = load_reg(s, a->rt);
gen_aa32_st_i32(s, tmp, addr, mem_idx, mop | s->be_data);
gen_aa32_st_i32(s, tmp, addr, mem_idx, mop);
disas_set_da_iss(s, mop, issinfo);
tcg_temp_free_i32(tmp);
@ -6639,13 +6680,13 @@ static bool op_ldrd_ri(DisasContext *s, arg_ldst_ri *a, int rt2)
addr = op_addr_ri_pre(s, a);
tmp = tcg_temp_new_i32();
gen_aa32_ld_i32(s, tmp, addr, mem_idx, MO_UL | s->be_data);
gen_aa32_ld_i32(s, tmp, addr, mem_idx, MO_UL | MO_ALIGN);
store_reg(s, a->rt, tmp);
tcg_gen_addi_i32(addr, addr, 4);
tmp = tcg_temp_new_i32();
gen_aa32_ld_i32(s, tmp, addr, mem_idx, MO_UL | s->be_data);
gen_aa32_ld_i32(s, tmp, addr, mem_idx, MO_UL | MO_ALIGN);
store_reg(s, rt2, tmp);
/* LDRD w/ base writeback is undefined if the registers overlap. */
@ -6678,13 +6719,13 @@ static bool op_strd_ri(DisasContext *s, arg_ldst_ri *a, int rt2)
addr = op_addr_ri_pre(s, a);
tmp = load_reg(s, a->rt);
gen_aa32_st_i32(s, tmp, addr, mem_idx, MO_UL | s->be_data);
gen_aa32_st_i32(s, tmp, addr, mem_idx, MO_UL | MO_ALIGN);
tcg_temp_free_i32(tmp);
tcg_gen_addi_i32(addr, addr, 4);
tmp = load_reg(s, rt2);
gen_aa32_st_i32(s, tmp, addr, mem_idx, MO_UL | s->be_data);
gen_aa32_st_i32(s, tmp, addr, mem_idx, MO_UL | MO_ALIGN);
tcg_temp_free_i32(tmp);
op_addr_ri_post(s, a, addr, -4);
@ -6910,7 +6951,7 @@ static bool op_stl(DisasContext *s, arg_STL *a, MemOp mop)
addr = load_reg(s, a->rn);
tmp = load_reg(s, a->rt);
tcg_gen_mb(TCG_MO_ALL | TCG_BAR_STRL);
gen_aa32_st_i32(s, tmp, addr, get_mem_index(s), mop | s->be_data);
gen_aa32_st_i32(s, tmp, addr, get_mem_index(s), mop | MO_ALIGN);
disas_set_da_iss(s, mop, a->rt | ISSIsAcqRel | ISSIsWrite);
tcg_temp_free_i32(tmp);
@ -7066,7 +7107,7 @@ static bool op_lda(DisasContext *s, arg_LDA *a, MemOp mop)
addr = load_reg(s, a->rn);
tmp = tcg_temp_new_i32();
gen_aa32_ld_i32(s, tmp, addr, get_mem_index(s), mop | s->be_data);
gen_aa32_ld_i32(s, tmp, addr, get_mem_index(s), mop | MO_ALIGN);
disas_set_da_iss(s, mop, a->rt | ISSIsAcqRel);
tcg_temp_free_i32(addr);
@ -7858,7 +7899,7 @@ static bool op_stm(DisasContext *s, arg_ldst_block *a, int min_n)
} else {
tmp = load_reg(s, i);
}
gen_aa32_st32(s, tmp, addr, mem_idx);
gen_aa32_st_i32(s, tmp, addr, mem_idx, MO_UL | MO_ALIGN);
tcg_temp_free_i32(tmp);
/* No need to add after the last transfer. */
@ -7933,7 +7974,7 @@ static bool do_ldm(DisasContext *s, arg_ldst_block *a, int min_n)
}
tmp = tcg_temp_new_i32();
gen_aa32_ld32u(s, tmp, addr, mem_idx);
gen_aa32_ld_i32(s, tmp, addr, mem_idx, MO_UL | MO_ALIGN);
if (user) {
tmp2 = tcg_const_i32(i);
gen_helper_set_user_reg(cpu_env, tmp2, tmp);
@ -8250,8 +8291,7 @@ static bool op_tbranch(DisasContext *s, arg_tbranch *a, bool half)
addr = load_reg(s, a->rn);
tcg_gen_add_i32(addr, addr, tmp);
gen_aa32_ld_i32(s, tmp, addr, get_mem_index(s),
half ? MO_UW | s->be_data : MO_UB);
gen_aa32_ld_i32(s, tmp, addr, get_mem_index(s), half ? MO_UW : MO_UB);
tcg_temp_free_i32(addr);
tcg_gen_add_i32(tmp, tmp, tmp);
@ -8332,10 +8372,10 @@ static bool trans_RFE(DisasContext *s, arg_RFE *a)
/* Load PC into tmp and CPSR into tmp2. */
t1 = tcg_temp_new_i32();
gen_aa32_ld32u(s, t1, addr, get_mem_index(s));
gen_aa32_ld_i32(s, t1, addr, get_mem_index(s), MO_UL | MO_ALIGN);
tcg_gen_addi_i32(addr, addr, 4);
t2 = tcg_temp_new_i32();
gen_aa32_ld32u(s, t2, addr, get_mem_index(s));
gen_aa32_ld_i32(s, t2, addr, get_mem_index(s), MO_UL | MO_ALIGN);
if (a->w) {
/* Base writeback. */
@ -8836,7 +8876,7 @@ static void arm_tr_init_disas_context(DisasContextBase *dcbase, CPUState *cs)
DisasContext *dc = container_of(dcbase, DisasContext, base);
CPUARMState *env = cs->env_ptr;
ARMCPU *cpu = env_archcpu(env);
uint32_t tb_flags = dc->base.tb->flags;
CPUARMTBFlags tb_flags = arm_tbflags_from_tb(dc->base.tb);
uint32_t condexec, core_mmu_idx;
dc->isar = &cpu->isar;
@ -8848,46 +8888,43 @@ static void arm_tr_init_disas_context(DisasContextBase *dcbase, CPUState *cs)
*/
dc->secure_routed_to_el3 = arm_feature(env, ARM_FEATURE_EL3) &&
!arm_el_is_aa64(env, 3);
dc->thumb = FIELD_EX32(tb_flags, TBFLAG_AM32, THUMB);
dc->be_data = FIELD_EX32(tb_flags, TBFLAG_ANY, BE_DATA) ? MO_BE : MO_LE;
condexec = FIELD_EX32(tb_flags, TBFLAG_AM32, CONDEXEC);
dc->thumb = EX_TBFLAG_AM32(tb_flags, THUMB);
dc->be_data = EX_TBFLAG_ANY(tb_flags, BE_DATA) ? MO_BE : MO_LE;
condexec = EX_TBFLAG_AM32(tb_flags, CONDEXEC);
dc->condexec_mask = (condexec & 0xf) << 1;
dc->condexec_cond = condexec >> 4;
core_mmu_idx = FIELD_EX32(tb_flags, TBFLAG_ANY, MMUIDX);
core_mmu_idx = EX_TBFLAG_ANY(tb_flags, MMUIDX);
dc->mmu_idx = core_to_arm_mmu_idx(env, core_mmu_idx);
dc->current_el = arm_mmu_idx_to_el(dc->mmu_idx);
#if !defined(CONFIG_USER_ONLY)
dc->user = (dc->current_el == 0);
#endif
dc->fp_excp_el = FIELD_EX32(tb_flags, TBFLAG_ANY, FPEXC_EL);
dc->fp_excp_el = EX_TBFLAG_ANY(tb_flags, FPEXC_EL);
dc->align_mem = EX_TBFLAG_ANY(tb_flags, ALIGN_MEM);
if (arm_feature(env, ARM_FEATURE_M)) {
dc->vfp_enabled = 1;
dc->be_data = MO_TE;
dc->v7m_handler_mode = FIELD_EX32(tb_flags, TBFLAG_M32, HANDLER);
dc->v7m_handler_mode = EX_TBFLAG_M32(tb_flags, HANDLER);
dc->v8m_secure = arm_feature(env, ARM_FEATURE_M_SECURITY) &&
regime_is_secure(env, dc->mmu_idx);
dc->v8m_stackcheck = FIELD_EX32(tb_flags, TBFLAG_M32, STACKCHECK);
dc->v8m_fpccr_s_wrong =
FIELD_EX32(tb_flags, TBFLAG_M32, FPCCR_S_WRONG);
dc->v8m_stackcheck = EX_TBFLAG_M32(tb_flags, STACKCHECK);
dc->v8m_fpccr_s_wrong = EX_TBFLAG_M32(tb_flags, FPCCR_S_WRONG);
dc->v7m_new_fp_ctxt_needed =
FIELD_EX32(tb_flags, TBFLAG_M32, NEW_FP_CTXT_NEEDED);
dc->v7m_lspact = FIELD_EX32(tb_flags, TBFLAG_M32, LSPACT);
EX_TBFLAG_M32(tb_flags, NEW_FP_CTXT_NEEDED);
dc->v7m_lspact = EX_TBFLAG_M32(tb_flags, LSPACT);
} else {
dc->be_data =
FIELD_EX32(tb_flags, TBFLAG_ANY, BE_DATA) ? MO_BE : MO_LE;
dc->debug_target_el =
FIELD_EX32(tb_flags, TBFLAG_ANY, DEBUG_TARGET_EL);
dc->sctlr_b = FIELD_EX32(tb_flags, TBFLAG_A32, SCTLR_B);
dc->hstr_active = FIELD_EX32(tb_flags, TBFLAG_A32, HSTR_ACTIVE);
dc->ns = FIELD_EX32(tb_flags, TBFLAG_A32, NS);
dc->vfp_enabled = FIELD_EX32(tb_flags, TBFLAG_A32, VFPEN);
dc->debug_target_el = EX_TBFLAG_ANY(tb_flags, DEBUG_TARGET_EL);
dc->sctlr_b = EX_TBFLAG_A32(tb_flags, SCTLR__B);
dc->hstr_active = EX_TBFLAG_A32(tb_flags, HSTR_ACTIVE);
dc->ns = EX_TBFLAG_A32(tb_flags, NS);
dc->vfp_enabled = EX_TBFLAG_A32(tb_flags, VFPEN);
if (arm_feature(env, ARM_FEATURE_XSCALE)) {
dc->c15_cpar = FIELD_EX32(tb_flags, TBFLAG_A32, XSCALE_CPAR);
dc->c15_cpar = EX_TBFLAG_A32(tb_flags, XSCALE_CPAR);
} else {
dc->vec_len = FIELD_EX32(tb_flags, TBFLAG_A32, VECLEN);
dc->vec_stride = FIELD_EX32(tb_flags, TBFLAG_A32, VECSTRIDE);
dc->vec_len = EX_TBFLAG_A32(tb_flags, VECLEN);
dc->vec_stride = EX_TBFLAG_A32(tb_flags, VECSTRIDE);
}
}
dc->cp_regs = cpu->cp_regs;
@ -8908,8 +8945,8 @@ static void arm_tr_init_disas_context(DisasContextBase *dcbase, CPUState *cs)
* emit code to generate a software step exception
* end the TB
*/
dc->ss_active = FIELD_EX32(tb_flags, TBFLAG_ANY, SS_ACTIVE);
dc->pstate_ss = FIELD_EX32(tb_flags, TBFLAG_ANY, PSTATE_SS);
dc->ss_active = EX_TBFLAG_ANY(tb_flags, SS_ACTIVE);
dc->pstate_ss = EX_TBFLAG_ANY(tb_flags, PSTATE__SS);
dc->is_ldex = false;
dc->page_start = dc->base.pc_first & TARGET_PAGE_MASK;
@ -9347,12 +9384,13 @@ void gen_intermediate_code(CPUState *cpu, TranslationBlock *tb, int max_insns)
{
DisasContext dc = { };
const TranslatorOps *ops = &arm_translator_ops;
CPUARMTBFlags tb_flags = arm_tbflags_from_tb(tb);
if (FIELD_EX32(tb->flags, TBFLAG_AM32, THUMB)) {
if (EX_TBFLAG_AM32(tb_flags, THUMB)) {
ops = &thumb_translator_ops;
}
#ifdef TARGET_AARCH64
if (FIELD_EX32(tb->flags, TBFLAG_ANY, AARCH64_STATE)) {
if (EX_TBFLAG_ANY(tb_flags, AARCH64_STATE)) {
ops = &aarch64_translator_ops;
}
#endif

38
target/arm/translate.h
View File

@ -87,6 +87,8 @@ typedef struct DisasContext {
bool bt;
/* True if any CP15 access is trapped by HSTR_EL2 */
bool hstr_active;
/* True if memory operations require alignment */
bool align_mem;
/*
* >= 0, a copy of PSTATE.BTYPE, which will be 0 without v8.5-BTI.
* < 0, set by the current instruction.
@ -202,6 +204,7 @@ void arm_test_cc(DisasCompare *cmp, int cc);
void arm_free_cc(DisasCompare *cmp);
void arm_jump_cc(DisasCompare *cmp, TCGLabel *label);
void arm_gen_test_cc(int cc, TCGLabel *label);
MemOp pow2_align(unsigned i);
/* Return state of Alternate Half-precision flag, caller frees result */
static inline TCGv_i32 get_ahp_flag(void)
@ -394,6 +397,17 @@ typedef void CryptoThreeOpIntFn(TCGv_ptr, TCGv_ptr, TCGv_i32);
typedef void CryptoThreeOpFn(TCGv_ptr, TCGv_ptr, TCGv_ptr);
typedef void AtomicThreeOpFn(TCGv_i64, TCGv_i64, TCGv_i64, TCGArg, MemOp);
/**
* arm_tbflags_from_tb:
* @tb: the TranslationBlock
*
* Extract the flag values from @tb.
*/
static inline CPUARMTBFlags arm_tbflags_from_tb(const TranslationBlock *tb)
{
return (CPUARMTBFlags){ tb->flags, tb->cs_base };
}
/*
* Enum for argument to fpstatus_ptr().
*/
@ -446,4 +460,28 @@ static inline TCGv_ptr fpstatus_ptr(ARMFPStatusFlavour flavour)
return statusptr;
}
/**
* finalize_memop:
* @s: DisasContext
* @opc: size+sign+align of the memory operation
*
* Build the complete MemOp for a memory operation, including alignment
* and endianness.
*
* If (op & MO_AMASK) then the operation already contains the required
* alignment, e.g. for AccType_ATOMIC. Otherwise, this an optionally
* unaligned operation, e.g. for AccType_NORMAL.
*
* In the latter case, there are configuration bits that require alignment,
* and this is applied here. Note that there is no way to indicate that
* no alignment should ever be enforced; this must be handled manually.
*/
static inline MemOp finalize_memop(DisasContext *s, MemOp opc)
{
if (s->align_mem && !(opc & MO_AMASK)) {
opc |= MO_ALIGN;
}
return opc | s->be_data;
}
#endif /* TARGET_ARM_TRANSLATE_H */

2
tests/tcg/aarch64/Makefile.target
View File

@ -37,7 +37,7 @@ AARCH64_TESTS += bti-2
# MTE Tests
ifneq ($(DOCKER_IMAGE)$(CROSS_CC_HAS_ARMV8_MTE),)
AARCH64_TESTS += mte-1 mte-2 mte-3 mte-4 mte-6
AARCH64_TESTS += mte-1 mte-2 mte-3 mte-4 mte-5 mte-6
mte-%: CFLAGS += -march=armv8.5-a+memtag
endif

44
tests/tcg/aarch64/mte-5.c Normal file
View File

@ -0,0 +1,44 @@
/*
* Memory tagging, faulting unaligned access.
*
* Copyright (c) 2021 Linaro Ltd
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "mte.h"
void pass(int sig, siginfo_t *info, void *uc)
{
assert(info->si_code == SEGV_MTESERR);
exit(0);
}
int main(int ac, char **av)
{
struct sigaction sa;
void *p0, *p1, *p2;
long excl = 1;
enable_mte(PR_MTE_TCF_SYNC);
p0 = alloc_mte_mem(sizeof(*p0));
/* Create two differently tagged pointers. */
asm("irg %0,%1,%2" : "=r"(p1) : "r"(p0), "r"(excl));
asm("gmi %0,%1,%0" : "+r"(excl) : "r" (p1));
assert(excl != 1);
asm("irg %0,%1,%2" : "=r"(p2) : "r"(p0), "r"(excl));
assert(p1 != p2);
memset(&sa, 0, sizeof(sa));
sa.sa_sigaction = pass;
sa.sa_flags = SA_SIGINFO;
sigaction(SIGSEGV, &sa, NULL);
/* Store store two different tags in sequential granules. */
asm("stg %0, [%0]" : : "r"(p1));
asm("stg %0, [%0]" : : "r"(p2 + 16));
/* Perform an unaligned load crossing the granules. */
asm volatile("ldr %0, [%1]" : "=r"(p0) : "r"(p1 + 12));
abort();
}