Re: [PATCH v1 35/43] hw/intc: Add LoongArch extioi interrupt controller(EIOINTC)

On 4/15/22 02:40, Xiaojuan Yang wrote: +memory_region_init(>mmio[cpu], OBJECT(s), + "loongarch_extioi", EXTIOI_SIZE); + +memory_region_init_io(>mmio_nodetype[cpu], OBJECT(s), + _nodetype_ops, s, +

Re: [PATCH v1 34/43] hw/intc: Add LoongArch ls7a msi interrupt controller support(PCH-MSI)

On 4/15/22 02:40, Xiaojuan Yang wrote: This patch realize PCH-MSI interrupt controller. Signed-off-by: Xiaojuan Yang Signed-off-by: Song Gao --- hw/intc/Kconfig | 5 ++ hw/intc/loongarch_pch_msi.c | 75 + hw/intc/meson.build

Re: [PATCH v1 33/43] hw/intc: Add LoongArch ls7a interrupt controller support(PCH-PIC)

On 4/15/22 02:40, Xiaojuan Yang wrote: +static void pch_pic_update_irq(LoongArchPCHPIC *s, uint32_t mask, + int level, int hi) +{ +uint32_t val, irq; + +if (level == 1) { +if (hi) { +val = mask & s->intirr_hi & (~s->int_mask_hi); +

[PATCH v6 3/4] hw/arm/virt: Fix CPU's default NUMA node ID

When CPU-to-NUMA association isn't explicitly provided by users, the default one is given by mc->get_default_cpu_node_id(). However, the CPU topology isn't fully considered in the default association and this causes CPU topology broken warnings on booting Linux guest. For example, the following

[PATCH v6 4/4] hw/acpi/aml-build: Use existing CPU topology to build PPTT table

When the PPTT table is built, the CPU topology is re-calculated, but it's unecessary because the CPU topology has been populated in virt_possible_cpu_arch_ids() on arm/virt machine. This reworks build_pptt() to avoid by reusing the existing one in ms->possible_cpus. Currently, the only user of

[PATCH v6 2/4] hw/arm/virt: Consider SMP configuration in CPU topology

Currently, the SMP configuration isn't considered when the CPU topology is populated. In this case, it's impossible to provide the default CPU-to-NUMA mapping or association based on the socket ID of the given CPU. This takes account of SMP configuration when the CPU topology is populated. The

[PATCH v6 1/4] qapi/machine.json: Add cluster-id

This adds cluster-id in CPU instance properties, which will be used by arm/virt machine. Besides, the cluster-id is also verified or dumped in various spots: * hw/core/machine.c::machine_set_cpu_numa_node() to associate CPU with its NUMA node. *

[PATCH v6 0/4] hw/arm/virt: Fix CPU's default NUMA node ID

When the CPU-to-NUMA association isn't provided by user, the default NUMA node ID for the specific CPU is returned from virt_get_default_cpu_node_id(). Unfortunately, the default NUMA node ID breaks socket boundary and leads to the broken CPU topology warning message in Linux guest. This series

Re: [PATCH 4/4] hw/riscv: use qemu_fdt_setprop_strings() in sifive_u.c

On Sat, Apr 16, 2022 at 08:30:34PM +0100, Ben Dooks wrote: > Use the qemu_fdt_setprop_strings() in sifve_u.c to simplify > the code. > > Signed-off-by; Ben Dooks > --- > hw/riscv/sifive_u.c | 20 +++- > 1 file changed, 7 insertions(+), 13 deletions(-) > > diff --git

Re: [PATCH v1 32/43] hw/loongarch: Add LoongArch ipi interrupt support(IPI)

On 4/15/22 02:40, Xiaojuan Yang wrote: +static const VMStateDescription vmstate_loongarch_ipi = { +.name = TYPE_LOONGARCH_IPI, +.version_id = 0, +.minimum_version_id = 0, +.fields = (VMStateField[]) { +VMSTATE_END_OF_LIST() +} Why are there no fields here? There's

Re: [PATCH v1 31/43] hw/loongarch: Add support loongson3 virt machine type.

On 4/15/22 02:40, Xiaojuan Yang wrote: +++ b/include/hw/loongarch/loongarch.h @@ -0,0 +1,51 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Definitions for loongarch board emulation. + * + * Copyright (C) 2021 Loongson Technology Corporation Limited + */ + +#ifndef HW_LOONGARCH_H

Re: [PATCH v1 31/43] hw/loongarch: Add support loongson3 virt machine type.

On 4/15/22 02:40, Xiaojuan Yang wrote: +++ b/configs/devices/loongarch64-softmmu/default.mak @@ -0,0 +1,3 @@ +# Default configuration for loongarch64-softmmu + +CONFIG_LOONGARCH_VIRT=y Again, you can't add this file until you're ready to build. We do get farther that patch 30, ending in

[PATCH 2/4] hw/riscv: use qemu_fdt_setprop_reg64() in sifive_u.c

Use the qemu_fdt_setprop_reg64() to replace the code that sets the property manually. Signed-off-by: Ben Dooks --- hw/riscv/sifive_u.c | 41 +++-- 1 file changed, 11 insertions(+), 30 deletions(-) diff --git a/hw/riscv/sifive_u.c b/hw/riscv/sifive_u.c index

[PATCH 4/4] hw/riscv: use qemu_fdt_setprop_strings() in sifive_u.c

Use the qemu_fdt_setprop_strings() in sifve_u.c to simplify the code. Signed-off-by; Ben Dooks --- hw/riscv/sifive_u.c | 20 +++- 1 file changed, 7 insertions(+), 13 deletions(-) diff --git a/hw/riscv/sifive_u.c b/hw/riscv/sifive_u.c index 1fe364cbb0..b00086d86e 100644 ---

[PATCH 3/4] device_tree: add qemu_fdt_setprop_strings() helper

Add a helper to set a property from a set of strings to reduce the following code: static const char * const clint_compat[2] = { "sifive,clint0", "riscv,clint0" }; qemu_fdt_setprop_string_array(fdt, nodename, "compatible", (char **)_compat, ARRAY_SIZE(clint_compat));

A couple of new device-tree helpers.

I've been doing a bit of looking at riscv and dt creation, and was thinking the following two helper functions would be useful so implemented qemu_fdt_setprop_reg64() and qemu_fdt_setprop_strings() and then applied them to the hw/riscv/sifive_u.c machine. I thought I should get a review in before

[PATCH 1/4] device_tree: add qemu_fdt_setprop_reg64 helper

Add a macro qemu_fdt_setprop_reg64() to set the given node's reg property directly from the memory map entry to avoid open coding of the following: qemu_fdt_setprop_cells(fdt, nodename, "reg", 0x0, memmap[SIFIVE_U_DEV_OTP].base, 0x0, memmap[SIFIVE_U_DEV_OTP].size);

Re: [PATCH v1 29/43] target/loongarch: Add timer related instructions support.

On 4/15/22 02:40, Xiaojuan Yang wrote: +uint64_t helper_rdtime_d(CPULoongArchState *env) +{ +LoongArchCPU *cpu = LOONGARCH_CPU(env_cpu(env)); + +if ((env->CSR_MISC >> 7) & 0x1) { +do_raise_exception(env, EXCCODE_IPE, GETPC()); This isn't correct -- you need to extract bit 4 +

Re: [PATCH v1 30/43] target/loongarch: Add gdb support.

On 4/15/22 02:40, Xiaojuan Yang wrote: +void loongarch_cpu_register_gdb_regs_for_features(CPUState *cs) +{ +gdb_register_coprocessor(cs, loongarch_gdb_get_fpu, loongarch_gdb_set_fpu, + 41, "loongarch-fpu64.xml", 0); +} + +int loongarch_read_qxfer(CPUState *cs,

[PATCH v3 38/39] util/log: Limit RCUCloseFILE to file closing

Use FILE* for global_file. We can perform an rcu_read on that just as easily as RCUCloseFILE*. This simplifies a couple of places, where previously we required taking the rcu_read_lock simply to avoid racing to dereference RCUCloseFile->fd. Only allocate the RCUCloseFile prior to call_rcu.

[PATCH v3 39/39] util/log: Support per-thread log files

Add a new log flag, tid, to turn this feature on. Require the log filename to be set, and to contain %d. Do not allow tid to be turned off once it is on, nor let the filename be change thereafter. This avoids the need for signalling each thread to re-open on a name change. Reviewed-by: Alex

[PATCH v3 37/39] util/log: Rename QemuLogFile to RCUCloseFILE

s/QemuLogFile/RCUCloseFILE/ s/qemu_logfile_free/rcu_close_file/ Emphasize that this is only a carrier for passing a pointer to call_rcu for closing, and not the real logfile. Reviewed-by: Alex Bennée Reviewed-by: Philippe Mathieu-Daudé Signed-off-by: Richard Henderson --- util/log.c | 28

[PATCH v3 36/39] util/log: Combine two logfile closes

Merge the close from the changed_name block with the close from the !need_to_open_file block. Reviewed-by: Alex Bennée Signed-off-by: Richard Henderson --- util/log.c | 11 +++ 1 file changed, 3 insertions(+), 8 deletions(-) diff --git a/util/log.c b/util/log.c index

[PATCH v3 28/39] bsd-user: Use qemu_set_log_filename_flags

Perform all logfile setup in one step. Reviewed-by: Alex Bennée Signed-off-by: Richard Henderson --- bsd-user/main.c | 18 +- 1 file changed, 9 insertions(+), 9 deletions(-) diff --git a/bsd-user/main.c b/bsd-user/main.c index ed26fc5acb..aa13eae7f3 100644 ---

Re: [PATCH v1 30/43] target/loongarch: Add gdb support.

On 4/15/22 02:40, Xiaojuan Yang wrote: diff --git a/configs/targets/loongarch64-softmmu.mak b/configs/targets/loongarch64-softmmu.mak new file mode 100644 index 00..f33fa1590b --- /dev/null +++ b/configs/targets/loongarch64-softmmu.mak @@ -0,0 +1 @@ +TARGET_XML_FILES=

[PATCH v3 31/39] util/log: Remove qemu_log_close

The only real use is in cpu_abort, where we have just flushed the file via qemu_log_unlock, and are just about to force-crash the application via abort. We do not really need to close the FILE before the abort. The two uses in test-logging.c can be handled with qemu_set_log_filename_flags.

[PATCH v3 33/39] util/log: Rename qemu_logfile to global_file

Rename to emphasize this is the file-scope global variable. Reviewed-by: Alex Bennée Reviewed-by: Philippe Mathieu-Daudé Signed-off-by: Richard Henderson --- util/log.c | 16 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/util/log.c b/util/log.c index

[PATCH v3 29/39] linux-user: Use qemu_set_log_filename_flags

Perform all logfile setup in one step. Reviewed-by: Alex Bennée Signed-off-by: Richard Henderson --- linux-user/main.c | 11 +-- 1 file changed, 5 insertions(+), 6 deletions(-) diff --git a/linux-user/main.c b/linux-user/main.c index d263b2a669..0297ae8321 100644 ---

[PATCH v3 32/39] util/log: Rename logfilename to global_filename

Rename to emphasize this is the file-scope global variable. Reviewed-by: Alex Bennée Reviewed-by: Philippe Mathieu-Daudé Signed-off-by: Richard Henderson --- util/log.c | 13 ++--- 1 file changed, 6 insertions(+), 7 deletions(-) diff --git a/util/log.c b/util/log.c index

[PATCH v3 27/39] util/log: Introduce qemu_set_log_filename_flags

Provide a function to set both filename and flags at the same time. This is the common case at startup. Signed-off-by: Richard Henderson --- v2: Return bool, per recommendations in qapi/error.h (phil). --- include/qemu/log.h | 1 + util/log.c | 122

[PATCH v3 34/39] util/log: Rename qemu_logfile_mutex to global_mutex

Rename to emphasize this covers the file-scope global variables. Reviewed-by: Alex Bennée Signed-off-by: Richard Henderson --- util/log.c | 10 ++ 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/util/log.c b/util/log.c index 425f0064b0..bb201664ac 100644 --- a/util/log.c

[PATCH v3 20/39] util/log: Drop call to setvbuf

Now that the log buffer is flushed after every qemu_log_unlock, which includes every call to qemu_log, we do not need to force line buffering (or unbuffering for windows). Block buffer the entire loggable unit. Reviewed-by: Alex Bennée Signed-off-by: Richard Henderson --- util/log.c | 6

[PATCH v3 30/39] softmmu: Use qemu_set_log_filename_flags

Perform all logfile setup at startup in one step. Reviewed-by: Alex Bennée Signed-off-by: Richard Henderson --- softmmu/vl.c | 21 + 1 file changed, 9 insertions(+), 12 deletions(-) diff --git a/softmmu/vl.c b/softmmu/vl.c index a74d0a44a2..65c02963b6 100644 ---

[PATCH v3 25/39] include/qemu/log: Move entire implementation out-of-line

Move QemuLogFile, qemu_logfile, and all inline functions into qemu/log.c. No need to expose these implementation details in the api. Reviewed-by: Alex Bennée Signed-off-by: Richard Henderson --- include/qemu/log.h| 38 -- tests/unit/test-logging.c |

[PATCH v3 22/39] linux-user: Expand log_page_dump inline

We have extra stuff to log at the same time. Hoist the qemu_log_lock/unlock to the caller and use fprintf. Reviewed-by: Alex Bennée Signed-off-by: Richard Henderson --- include/exec/log.h | 15 --- linux-user/main.c | 43 +--

[PATCH v3 35/39] util/log: Hoist the eval of is_daemonized in qemu_set_log_internal

Only call is_daemonized once. We require the result on all paths after this point. Reviewed-by: Alex Bennée Reviewed-by: Philippe Mathieu-Daudé Signed-off-by: Richard Henderson --- util/log.c | 8 +--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/util/log.c b/util/log.c

[PATCH v3 26/39] sysemu/os-win32: Test for and use _lock_file/_unlock_file

The bug referenced in os-win32.h was fixed in mingw-w64 v6. According to repology, version 5 used by ubuntu 18, which is not yet out of support, so provide a meson link test for it. Reviewed-by: Alex Bennée Signed-off-by: Richard Henderson --- meson.build | 12

[PATCH v3 21/39] bsd-user: Expand log_page_dump inline

We have extra stuff to log at the same time. Hoist the qemu_log_trylock/unlock to the caller and use fprintf. Reviewed-by: Alex Bennée Signed-off-by: Richard Henderson --- bsd-user/main.c | 35 ++- 1 file changed, 22 insertions(+), 13 deletions(-) diff --git

[PATCH v3 23/39] tests/unit: Do not reference QemuLogFile directly

Use qemu_log_lock/unlock instead of the raw rcu_read. Reviewed-by: Alex Bennée Signed-off-by: Richard Henderson --- tests/unit/test-logging.c | 33 +++-- 1 file changed, 15 insertions(+), 18 deletions(-) diff --git a/tests/unit/test-logging.c

[PATCH v3 19/39] util/log: Remove qemu_log_flush

All uses flush output immediately before or after qemu_log_unlock. Instead of a separate call, move the flush into qemu_log_unlock. Reviewed-by: Alex Bennée Reviewed-by: Philippe Mathieu-Daudé Signed-off-by: Richard Henderson --- include/qemu/log.h| 2 -- accel/tcg/translate-all.c |

[PATCH v3 17/39] util/log: Drop return value from qemu_log

The only user of this feature, tcg_dump_ops, has been converted to use fprintf directly. Reviewed-by: Alex Bennée Signed-off-by: Richard Henderson --- include/qemu/log-for-trace.h | 2 +- util/log.c | 13 ++--- 2 files changed, 3 insertions(+), 12 deletions(-) diff

[PATCH v3 18/39] util/log: Mark qemu_log_trylock as G_GNUC_WARN_UNUSED_RESULT

Now that all uses have been updated, consider a missing test of the result of qemu_log_trylock a bug and Werror. Reviewed-by: Alex Bennée Signed-off-by: Richard Henderson --- include/qemu/log.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/qemu/log.h

[PATCH v3 24/39] include/exec/log: Do not reference QemuLogFile directly

Use qemu_log_trylock/unlock instead of the raw rcu_read. Signed-off-by: Richard Henderson --- include/exec/log.h | 13 - 1 file changed, 4 insertions(+), 9 deletions(-) diff --git a/include/exec/log.h b/include/exec/log.h index ad0a40cfeb..4a7375a45f 100644 --- a/include/exec/log.h

[PATCH v3 16/39] util/log: Use qemu_log_trylock/unlock in qemu_log

Avoid using QemuLogFile and RCU directly. Reviewed-by: Alex Bennée Signed-off-by: Richard Henderson --- util/log.c | 11 +-- 1 file changed, 5 insertions(+), 6 deletions(-) diff --git a/util/log.c b/util/log.c index 6b7b358573..090bc3bc39 100644 --- a/util/log.c +++ b/util/log.c @@

[PATCH v3 14/39] accel/tcg: Use cpu_dump_state between qemu_log_trylock/unlock

Inside log_cpu_state, we perform qemu_log_trylock/unlock, which need not be done if we have already performed the lock beforehand. Reviewed-by: Alex Bennée Signed-off-by: Richard Henderson --- accel/tcg/cpu-exec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git

[PATCH v3 09/39] *: Use fprintf between qemu_log_trylock/unlock

Inside qemu_log, we perform qemu_log_trylock/unlock, which need not be done if we have already performed the lock beforehand. Always check the result of qemu_log_trylock -- only checking qemu_loglevel_mask races with the acquisition of the lock on the logfile. Reviewed-by: Alex Bennée

[PATCH v3 04/39] util/log: Pass Error pointer to qemu_set_log

Do not force exit within qemu_set_log; return bool and pass an Error value back up the stack as per usual. Reviewed-by: Alex Bennée Signed-off-by: Richard Henderson --- v2: Return bool, per recommendations in qapi/error.h (phil). --- include/qemu/log.h | 2 +-

[PATCH v3 05/39] os-posix: Use qemu_log_enabled

Do not reference qemu_logfile directly; use the predicate provided by qemu/log.h. Reviewed-by: Alex Bennée Reviewed-by: Philippe Mathieu-Daudé Signed-off-by: Richard Henderson --- os-posix.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/os-posix.c b/os-posix.c index

[PATCH v3 15/39] target/nios2: Remove log_cpu_state from reset

This is redundant with the logging done in cpu_common_reset. Reviewed-by: Alex Bennée Reviewed-by: Philippe Mathieu-Daudé Signed-off-by: Richard Henderson --- target/nios2/cpu.c | 5 - 1 file changed, 5 deletions(-) diff --git a/target/nios2/cpu.c b/target/nios2/cpu.c index

[PATCH v3 08/39] hw/xen: Split out xen_pv_output_msg

Do not replicate the individual logging statements. Use qemu_log_trylock/unlock instead of qemu_log directly. Reviewed-by: Alex Bennée Signed-off-by: Richard Henderson --- hw/xen/xen_pvdev.c | 44 1 file changed, 24 insertions(+), 20 deletions(-)

[PATCH v3 13/39] exec/log: Remove log_disas and log_target_disas

These functions are no longer used. Reviewed-by: Alex Bennée Signed-off-by: Richard Henderson --- include/exec/log.h | 24 1 file changed, 24 deletions(-) diff --git a/include/exec/log.h b/include/exec/log.h index 648f4d2263..06ab9841ee 100644 --- a/include/exec/log.h

[PATCH v3 12/39] exec/translator: Pass the locked filepointer to disas_log hook

We have fetched and locked the logfile in translator_loop. Pass the filepointer down to the disas_log hook so that it need not be fetched and locked again. Reviewed-by: Alex Bennée Signed-off-by: Richard Henderson --- include/exec/translator.h | 2 +- accel/tcg/translator.c| 2 +-

[PATCH v3 07/39] util/log: Rename qemu_log_lock to qemu_log_trylock

This function can fail, which makes it more like ftrylockfile or pthread_mutex_trylock than flockfile or pthread_mutex_lock, so rename it. To closer match the other trylock functions, release rcu_read_lock along the failure path, so that qemu_log_unlock need not be called on failure.

[PATCH v3 02/39] target/hexagon: Remove qemu_set_log in hexagon_translate_init

This code appears to be trying to make sure there is a logfile. But that's already true -- the logfile will either be set by -D, or will be stderr. In either case, not appropriate here. Reviewed-by: Alex Bennée Signed-off-by: Richard Henderson --- target/hexagon/translate.c | 6 -- 1 file

[PATCH v3 10/39] util/log: Remove qemu_log_vprintf

This function is no longer used. Reviewed-by: Alex Bennée Signed-off-by: Richard Henderson --- include/qemu/log.h | 15 --- 1 file changed, 15 deletions(-) diff --git a/include/qemu/log.h b/include/qemu/log.h index d090faf22a..2d9455dc85 100644 --- a/include/qemu/log.h +++

[PATCH v3 11/39] tcg: Pass the locked filepointer to tcg_dump_ops

We have already looked up and locked the filepointer. Use fprintf instead of qemu_log directly for output in and around tcg_dump_ops. Reviewed-by: Alex Bennée Signed-off-by: Richard Henderson --- tcg/tcg.c | 109 ++ 1 file changed, 52

[PATCH v3 00/39] Logging cleanup and per-thread logfiles

Most of the changes here reduce the amount of locking involved in logging, due to repeated qemu_log calls, each of which takes and releases the rcu_read_lock. This makes more use of qemu_log_lock/unlock around code blocks, which both keeps the output together in the face of threads and also plays

[PATCH v3 01/39] util/log: Drop manual log buffering

This buffering was introduced during the Paleozoic: 9fa3e853531. There has never been an explanation as to why we may not allow glibc to allocate the file buffer itself. We certainly have many other uses of mmap and malloc during user-only startup, so presumably whatever the issue was, it has

[PATCH v3 06/39] util/log: Move qemu_log_lock, qemu_log_unlock out of line

Reviewed-by: Alex Bennée Reviewed-by: Philippe Mathieu-Daudé Signed-off-by: Richard Henderson --- include/qemu/log.h | 28 +++- util/log.c | 23 +++ 2 files changed, 26 insertions(+), 25 deletions(-) diff --git a/include/qemu/log.h

[PATCH v3 59/60] target/arm: Define cortex-a76

Enable the a76 for virt and sbsa board use. Signed-off-by: Richard Henderson --- docs/system/arm/virt.rst | 1 + hw/arm/sbsa-ref.c| 1 + hw/arm/virt.c| 1 + target/arm/cpu64.c | 66 4 files changed, 69 insertions(+) diff

[PATCH v3 54/60] target/arm: Enable FEAT_IESB for -cpu max

This feature is AArch64 only, and applies to physical SErrors, which QEMU does not implement, thus the feature is a nop. Reviewed-by: Peter Maydell Signed-off-by: Richard Henderson --- v2: Update emulation.rst --- docs/system/arm/emulation.rst | 1 + target/arm/cpu64.c| 1 + 2

[PATCH v3 03/39] util/log: Return bool from qemu_set_log_filename

Per the recommendations in qapi/error.h, return false on failure. Use the return value in the monitor, the only place we aren't already passing error_fatal or error_abort. Reviewed-by: Alex Bennée Signed-off-by: Richard Henderson --- include/qemu/log.h | 2 +- monitor/misc.c | 3 +--

[PATCH v3 58/60] target/arm: Enable FEAT_DGH for -cpu max

This extension concerns not merging memory access, which TCG does not implement. Thus we can trivially enable this feature. Add a comment to handle_hint for the DGH instruction, but no code. Reviewed-by: Peter Maydell Signed-off-by: Richard Henderson --- v2: Update emulation.rst ---

[PATCH v3 51/60] target/arm: Implement virtual SError exceptions

Virtual SError exceptions are raised by setting HCR_EL2.VSE, and are routed to EL1 just like other virtual exceptions. Signed-off-by: Richard Henderson --- v2: Honor EAE for reporting VSERR to aa32. --- target/arm/cpu.h | 2 ++ target/arm/internals.h | 8 target/arm/syndrome.h

[PATCH v3 44/60] target/arm: Annotate arm_max_initfn with FEAT identifiers

Update the legacy feature names to the current names. Provide feature names for id changes that were not marked. Sort the field updates into increasing bitfield order. Reviewed-by: Peter Maydell Signed-off-by: Richard Henderson --- target/arm/cpu64.c | 96

[PATCH v3 60/60] target/arm: Define neoverse-n1

Enable the n1 for virt and sbsa board use. Signed-off-by: Richard Henderson --- docs/system/arm/virt.rst | 1 + hw/arm/sbsa-ref.c| 1 + hw/arm/virt.c| 1 + target/arm/cpu64.c | 66 4 files changed, 69 insertions(+) diff

[PATCH v3 43/60] target/arm: Split out aa32_max_features

Share the code to set AArch32 max features so that we no longer have code drift between qemu{-system,}-{arm,aarch64}. Signed-off-by: Richard Henderson --- target/arm/internals.h | 2 + target/arm/cpu64.c | 50 +- target/arm/cpu_tcg.c | 114

[PATCH v3 50/60] target/arm: Enable SCR and HCR bits for RAS

Enable writes to the TERR and TEA bits when RAS is enabled. These bits are otherwise RES0. Reviewed-by: Peter Maydell Signed-off-by: Richard Henderson --- target/arm/helper.c | 9 + 1 file changed, 9 insertions(+) diff --git a/target/arm/helper.c b/target/arm/helper.c index

[PATCH v3 55/60] target/arm: Enable FEAT_CSV2 for -cpu max

This extension concerns branch speculation, which TCG does not implement. Thus we can trivially enable this feature. Reviewed-by: Peter Maydell Signed-off-by: Richard Henderson --- v2: Update emulation.rst --- docs/system/arm/emulation.rst | 1 + target/arm/cpu64.c| 1 +

[PATCH v3 57/60] target/arm: Enable FEAT_CSV3 for -cpu max

This extension concerns cache speculation, which TCG does not implement. Thus we can trivially enable this feature. Reviewed-by: Peter Maydell Signed-off-by: Richard Henderson --- v2: Update emulation.rst --- docs/system/arm/emulation.rst | 1 + target/arm/cpu64.c| 1 +

[PATCH v3 41/60] target/arm: Update qemu-system-arm -cpu max to cortex-a57

Instead of starting with cortex-a15 and adding v8 features to a v7 cpu, begin with a v8 cpu stripped of its aarch64 features. This fixes the long-standing to-do where we only enabled v8 features for user-only. Signed-off-by: Richard Henderson --- v2: Create impdef sysregs; only enable

[PATCH v3 56/60] target/arm: Enable FEAT_CSV2_2 for -cpu max

There is no branch prediction in TCG, therefore there is no need to actually include the context number into the predictor. Therefore all we need to do is add the state for SCXTNUM_ELx. Signed-off-by: Richard Henderson --- v2: Update emulation.rst; clear CSV2_FRAC; use decimal; tidy

[PATCH v3 49/60] target/arm: Add minimal RAS registers

Add only the system registers required to implement zero error records. This means we need to save state for ERRSELR, but all values are out of range, so none of the indexed error record registers need be implemented. Add the EL2 registers required for injecting virtual SError. Signed-off-by:

[PATCH v3 38/60] target/arm: Add isar predicates for FEAT_Debugv8p2

Reviewed-by: Peter Maydell Signed-off-by: Richard Henderson --- target/arm/cpu.h | 15 +++ 1 file changed, 15 insertions(+) diff --git a/target/arm/cpu.h b/target/arm/cpu.h index 76c0dd37cd..20bf70545e 100644 --- a/target/arm/cpu.h +++ b/target/arm/cpu.h @@ -3703,6 +3703,11 @@

[PATCH v3 42/60] target/arm: Set ID_DFR0.PerfMon for qemu-system-arm -cpu max

We set this for qemu-system-aarch64, but failed to do so for the strictly 32-bit emulation. Fixes: 3bec78447a9 ("target/arm: Provide ARMv8.4-PMU in '-cpu max'") Reviewed-by: Peter Maydell Signed-off-by: Richard Henderson --- target/arm/cpu_tcg.c | 4 1 file changed, 4 insertions(+) diff

[PATCH v3 45/60] target/arm: Use field names for manipulating EL2 and EL3 modes

Use FIELD_DP{32,64} to manipulate id_pfr1 and id_aa64pfr0 during arm_cpu_realizefn. Reviewed-by: Peter Maydell Signed-off-by: Richard Henderson --- target/arm/cpu.c | 22 +- 1 file changed, 13 insertions(+), 9 deletions(-) diff --git a/target/arm/cpu.c b/target/arm/cpu.c

[PATCH v3 36/60] target/arm: Drop EL3 no EL2 fallbacks

Drop el3_no_el2_cp_reginfo, el3_no_el2_v8_cp_reginfo, and the local vpidr_regs definition, and rely on the squasing to ARM_CP_CONST while registering. Signed-off-by: Richard Henderson --- target/arm/helper.c | 158 1 file changed, 13 insertions(+),

[PATCH v3 53/60] target/arm: Enable FEAT_RAS for -cpu max

Reviewed-by: Peter Maydell Signed-off-by: Richard Henderson --- v2: Update emulation.rst --- docs/system/arm/emulation.rst | 1 + target/arm/cpu64.c| 1 + target/arm/cpu_tcg.c | 1 + 3 files changed, 3 insertions(+) diff --git a/docs/system/arm/emulation.rst

[PATCH v3 52/60] target/arm: Implement ESB instruction

Check for and defer any pending virtual SError. Reviewed-by: Peter Maydell Signed-off-by: Richard Henderson --- v2: Retain m-profile check; improve comments. --- target/arm/helper.h| 1 + target/arm/a32.decode | 16 -- target/arm/t32.decode | 18

[PATCH v3 29/60] target/arm: Change cpreg access permissions to enum

Create a typedef as well, and use it in ARMCPRegInfo. This won't be perfect for debugging, but it'll nicely display the most common cases. Signed-off-by: Richard Henderson --- target/arm/cpregs.h | 44 +++- target/arm/helper.c | 5 ++--- 2 files changed,

[PATCH v3 40/60] target/arm: Move cortex impdef sysregs to cpu_tcg.c

Previously we were defining some of these in user-only mode, but none of them are accessible from user-only, therefore define them only in system mode. This will shortly be used from cpu_tcg.c also. Signed-off-by: Richard Henderson --- v2: New patch. --- target/arm/internals.h | 6

[PATCH v3 34/60] target/arm: Cleanup add_cpreg_to_hashtable

Use a single memory allocation for name and reginfo. Perform the override check early; use assert not printf+abort. Use a switch statement to validate state. Signed-off-by: Richard Henderson --- target/arm/cpu.c| 16 + target/arm/helper.c | 154

[PATCH v3 25/60] target/arm: Reorg CPAccessResult and access_check_cp_reg

Rearrange the values of the enumerators of CPAccessResult so that we may directly extract the target el. For the two special cases in access_check_cp_reg, use CPAccessResult. Signed-off-by: Richard Henderson --- target/arm/cpregs.h| 26 target/arm/op_helper.c | 56

[PATCH v3 48/60] target/arm: Add isar_feature_{aa64,any}_ras

Add the aa64 predicate for detecting RAS support from id registers. We already have the aa32 version from the M-profile work. Add the 'any' predicate for testing both aa64 and aa32. Reviewed-by: Peter Maydell Signed-off-by: Richard Henderson --- target/arm/cpu.h | 10 ++ 1 file

[PATCH v3 39/60] target/arm: Adjust definition of CONTEXTIDR_EL2

This register is present for either VHE or Debugv8p2. Reviewed-by: Peter Maydell Signed-off-by: Richard Henderson --- v3: Rely on EL3-no-EL2 squashing during registration. --- target/arm/helper.c | 15 +++ 1 file changed, 11 insertions(+), 4 deletions(-) diff --git

[PATCH v3 31/60] target/arm: Name CPSecureState type

Give this enum a name and use in ARMCPRegInfo and add_cpreg_to_hashtable. Add the enumerator ARM_CP_SECSTATE_BOTH to clarify how 0 is handled in define_one_arm_cp_reg_with_opaque. Signed-off-by: Richard Henderson --- target/arm/cpregs.h | 7 --- target/arm/helper.c | 3 ++- 2 files changed,

[PATCH v3 47/60] target/arm: Enable FEAT_Debugv8p4 for -cpu max

This extension concerns changes to the External Debug interface, with Secure and Non-secure access to the debug registers, and all of it is outside the scope of QEMU. Indicating support for this is mandatory with FEAT_SEL2, which we do implement. Reviewed-by: Peter Maydell Signed-off-by:

[PATCH v3 35/60] target/arm: Handle cpreg registration for missing EL

More gracefully handle cpregs when EL2 and/or EL3 are missing. If the reg is entirely inaccessible, do not register it at all. If the reg is for EL2, and EL3 is present but EL2 is not, squash to ARM_CP_CONST. This will simplify cpreg registration for conditional arm features. Signed-off-by:

[PATCH v3 21/60] target/arm: Use tcg_constant in translate-sve.c

Use tcg_constant_{i32,i64} as appropriate throughout. Signed-off-by: Richard Henderson --- target/arm/translate-sve.c | 198 + 1 file changed, 68 insertions(+), 130 deletions(-) diff --git a/target/arm/translate-sve.c b/target/arm/translate-sve.c index

[PATCH v3 46/60] target/arm: Enable FEAT_Debugv8p2 for -cpu max

The only portion of FEAT_Debugv8p2 that is relevant to QEMU is CONTEXTIDR_EL2, which is also conditionally implemented with FEAT_VHE. The rest of the debug extension concerns the External debug interface, which is outside the scope of QEMU. Reviewed-by: Peter Maydell Signed-off-by: Richard

[PATCH v3 30/60] target/arm: Name CPState type

Give this enum a name and use in ARMCPRegInfo, add_cpreg_to_hashtable and define_one_arm_cp_reg_with_opaque. Signed-off-by: Richard Henderson --- target/arm/cpregs.h | 6 +++--- target/arm/helper.c | 6 -- 2 files changed, 7 insertions(+), 5 deletions(-) diff --git a/target/arm/cpregs.h

[PATCH v3 23/60] target/arm: Use tcg_constant_i32 in translate.h

Signed-off-by: Richard Henderson --- target/arm/translate.h | 13 +++-- 1 file changed, 3 insertions(+), 10 deletions(-) diff --git a/target/arm/translate.h b/target/arm/translate.h index 050d80f6f9..6f0ebdc88e 100644 --- a/target/arm/translate.h +++ b/target/arm/translate.h @@ -332,16

[PATCH v3 24/60] target/arm: Split out cpregs.h

Move ARMCPRegInfo and all related declarations to a new internal header, out of the public cpu.h. Signed-off-by: Richard Henderson --- target/arm/cpregs.h| 413 + target/arm/cpu.h | 368 - hw/arm/pxa2xx.c

[PATCH v3 22/60] target/arm: Use tcg_constant in translate-vfp.c

Use tcg_constant_{i32,i64} as appropriate throughout. Signed-off-by: Richard Henderson --- target/arm/translate-vfp.c | 76 -- 1 file changed, 23 insertions(+), 53 deletions(-) diff --git a/target/arm/translate-vfp.c b/target/arm/translate-vfp.c index

[PATCH v3 37/60] target/arm: Merge zcr reginfo

Drop zcr_no_el2_reginfo and merge the 3 registers into one array, now that ZCR_EL2 can be squashed to RES0 and ZCR_EL3 dropped while registering. Signed-off-by: Richard Henderson --- target/arm/helper.c | 55 ++--- 1 file changed, 17 insertions(+), 38

[PATCH v3 27/60] target/arm: Make some more cpreg data static const

These particular data structures are not modified at runtime. Signed-off-by: Richard Henderson --- target/arm/helper.c | 16 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/target/arm/helper.c b/target/arm/helper.c index d6c34c7826..94b41c7e88 100644 ---

[PATCH v3 19/60] target/arm: Use tcg_constant in translate-neon.c

Use tcg_constant_{i32,i64} as appropriate throughout. Signed-off-by: Richard Henderson --- target/arm/translate-neon.c | 21 +++-- 1 file changed, 7 insertions(+), 14 deletions(-) diff --git a/target/arm/translate-neon.c b/target/arm/translate-neon.c index

[PATCH v3 33/60] target/arm: Store cpregs key in the hash table directly

Cast the uint32_t key into a gpointer directly, which allows us to avoid allocating storage for each key. Signed-off-by: Richard Henderson --- target/arm/cpu.c | 4 ++-- target/arm/gdbstub.c | 2 +- target/arm/helper.c | 45 3 files changed,

[PATCH v3 26/60] target/arm: Replace sentinels with ARRAY_SIZE in cpregs.h

Remove a possible source of error by removing REGINFO_SENTINEL and using ARRAY_SIZE (convinently hidden inside a macro) to find the end of the set of regs being registered or modified. The space saved by not having the extra array element reduces the executable's .data.rel.ro section by about 9k.

[PATCH v3 17/60] target/arm: Use tcg_constant in translate.c

Use tcg_constant_{i32,i64,ptr} as appropriate throughout, which means we get to remove lots of tcg_temp_free_*. Drop variables in many cases, passing the constant directly to another function. Signed-off-by: Richard Henderson --- target/arm/translate.c | 250

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