Commit Graph

104867 Commits

Author SHA1 Message Date
Cédric Le Goater 262259eab1 aspeed: Introduce a boot_rom region at the machine level
This should also avoid Coverity to report a memory leak warning when
the QEMU process exits. See CID 1508061.

Reviewed-by: Francisco Iglesias <frasse.iglesias@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2023-06-15 18:35:58 +02:00
Cédric Le Goater c8f48b120b aspeed/hace: Initialize g_autofree pointer
As mentioned in docs/devel/style.rst "Automatic memory deallocation":

* Variables declared with g_auto* MUST always be initialized,
  otherwise the cleanup function will use uninitialized stack memory

This avoids QEMU to coredump when running the "hash test" command
under Zephyr.

Cc: Steven Lee <steven_lee@aspeedtech.com>
Cc: Joel Stanley <joel@jms.id.au>
Cc: qemu-stable@nongnu.org
Fixes: c5475b3f9a ("hw: Model ASPEED's Hash and Crypto Engine")
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Francisco Iglesias <frasse.iglesias@gmail.com>
Message-Id: <20230421131547.2177449-1-clg@kaod.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2023-06-15 18:35:57 +02:00
Ninad Palsule be85508f17 hw/arm/aspeed: Add VPD data for Rainier machine
The current modeling of Rainier machine creates zero filled VPDs(EEPROMs).
This makes some services and applications unhappy and causing them to fail.
Hence this drop adds some fabricated data for system and BMC FRU so that
vpd services are happy and active.

Tested:
   - The system-vpd.service is active.
   - VPD service related to bmc is active.

Signed-off-by: Ninad Palsule <ninad@linux.ibm.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
[ clg: commit title cleanup ]
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2023-06-15 18:35:57 +02:00
Richard Henderson 7efd65423a Second RISC-V PR for 8.1
* Skip Vector set tail when vta is zero
 * Move zc* out of the experimental properties
 * Mask the implicitly enabled extensions in isa_string based on priv version
 * Rework CPU extension validation and validate MISA changes
 * Fixup PMP TLB cacheing errors
 * Writing to pmpaddr and MML/MMWP correctly triggers TLB flushes
 * Fixup PMP bypass checks
 * Deny access if access is partially inside a PMP entry
 * Correct OpenTitanState parent type/size
 * Fix QEMU crash when NUMA nodes exceed available CPUs
 * Fix pointer mask transformation for vector address
 * Updates and improvements for Smstateen
 * Support disas for Zcm* extensions
 * Support disas for Z*inx extensions
 * Remove unused decomp_rv32/64 value for vector instructions
 * Enable PC-relative translation
 * Assume M-mode FW in pflash0 only when "-bios none"
 * Support using pflash via -blockdev option
 * Add vector registers to log
 * Clean up reference of Vector MTYPE
 * Remove the check for extra Vector tail elements
 * Smepmp: Return error when access permission not allowed in PMP
 * Fixes for smsiaddrcfg and smsiaddrcfgh in AIA
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Merge tag 'pull-riscv-to-apply-20230614' of https://github.com/alistair23/qemu into staging

Second RISC-V PR for 8.1

* Skip Vector set tail when vta is zero
* Move zc* out of the experimental properties
* Mask the implicitly enabled extensions in isa_string based on priv version
* Rework CPU extension validation and validate MISA changes
* Fixup PMP TLB cacheing errors
* Writing to pmpaddr and MML/MMWP correctly triggers TLB flushes
* Fixup PMP bypass checks
* Deny access if access is partially inside a PMP entry
* Correct OpenTitanState parent type/size
* Fix QEMU crash when NUMA nodes exceed available CPUs
* Fix pointer mask transformation for vector address
* Updates and improvements for Smstateen
* Support disas for Zcm* extensions
* Support disas for Z*inx extensions
* Remove unused decomp_rv32/64 value for vector instructions
* Enable PC-relative translation
* Assume M-mode FW in pflash0 only when "-bios none"
* Support using pflash via -blockdev option
* Add vector registers to log
* Clean up reference of Vector MTYPE
* Remove the check for extra Vector tail elements
* Smepmp: Return error when access permission not allowed in PMP
* Fixes for smsiaddrcfg and smsiaddrcfgh in AIA

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# gpg:                using RSA key 6AE902B6A7CA877D6D659296AF7C95130C538013
# gpg: Good signature from "Alistair Francis <alistair@alistair23.me>" [unknown]
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* tag 'pull-riscv-to-apply-20230614' of https://github.com/alistair23/qemu: (60 commits)
  hw/intc: If mmsiaddrcfgh.L == 1, smsiaddrcfg and smsiaddrcfgh are read-only.
  target/riscv: Smepmp: Return error when access permission not allowed in PMP
  target/riscv/vector_helper.c: Remove the check for extra tail elements
  target/riscv/vector_helper.c: clean up reference of MTYPE
  target/riscv: Fix initialized value for cur_pmmask
  util/log: Add vector registers to log
  docs/system: riscv: Add pflash usage details
  riscv/virt: Support using pflash via -blockdev option
  hw/riscv: virt: Assume M-mode FW in pflash0 only when "-bios none"
  target/riscv: Remove pc_succ_insn from DisasContext
  target/riscv: Enable PC-relative translation
  target/riscv: Use true diff for gen_pc_plus_diff
  target/riscv: Change gen_set_pc_imm to gen_update_pc
  target/riscv: Change gen_goto_tb to work on displacements
  target/riscv: Introduce cur_insn_len into DisasContext
  target/riscv: Fix target address to update badaddr
  disas/riscv.c: Remove redundant parentheses
  disas/riscv.c: Fix lines with over 80 characters
  disas/riscv.c: Remove unused decomp_rv32/64 value for vector instructions
  disas/riscv.c: Support disas for Z*inx extensions
  ...

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-06-14 05:28:51 +02:00
Richard Henderson be5e8563f7 Misc patches queue
- user emulation: Preserve environment variable order
 - macos/darwin/hvf: Fix build warnings, slighly optimize DCache flush
 - target/i386: Minor cleanups, rename  template headers with '.inc' suffix
 - target/hppa: Avoid building int_helper.o on user emulation
 - hw: Add 'name' property to pca954x, export ISAParallelState, silent warnings
 - hw/vfio: Trace number of bitmap dirty pages
 - exec/memory: Introduce RAM_NAMED_FILE to distinct block without named backing store
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Merge tag 'misc-20230613' of https://github.com/philmd/qemu into staging

Misc patches queue

- user emulation: Preserve environment variable order
- macos/darwin/hvf: Fix build warnings, slighly optimize DCache flush
- target/i386: Minor cleanups, rename  template headers with '.inc' suffix
- target/hppa: Avoid building int_helper.o on user emulation
- hw: Add 'name' property to pca954x, export ISAParallelState, silent warnings
- hw/vfio: Trace number of bitmap dirty pages
- exec/memory: Introduce RAM_NAMED_FILE to distinct block without named backing store

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# gpg: Good signature from "Philippe Mathieu-Daudé (F4BUG) <f4bug@amsat.org>" [full]

* tag 'misc-20230613' of https://github.com/philmd/qemu:
  exec/memory: Introduce RAM_NAMED_FILE flag
  hw/vfio: Add number of dirty pages to vfio_get_dirty_bitmap tracepoint
  exec/ram_addr: Return number of dirty pages in cpu_physical_memory_set_dirty_lebitmap()
  hw/char/parallel-isa: Export struct ISAParallelState
  hw/char/parallel: Export struct ParallelState
  hw/scsi/megasas: Silent GCC duplicated-cond warning
  hw/ide/ahci: Remove stray backslash
  hw/i2c: Enable an id for the pca954x devices
  target/i386: Rename helper template headers as '.h.inc'
  target/i386/helper: Shuffle do_cpu_init()
  target/i386/helper: Remove do_cpu_sipi() stub for user-mode emulation
  target/hppa/meson: Only build int_helper.o with system emulation
  accel/hvf: Report HV_DENIED error
  util/cacheflush: Avoid possible redundant dcache flush on Darwin
  util/cacheflush: Use declarations from <OSCacheControl.h> on Darwin
  cocoa: Fix warnings about invalid prototype declarations
  linux-user, bsd-user: Preserve incoming order of environment variables in the target

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-06-14 05:27:55 +02:00
Tommy Wu 860029321d hw/intc: If mmsiaddrcfgh.L == 1, smsiaddrcfg and smsiaddrcfgh are read-only.
According to the `The RISC-V Advanced Interrupt Architecture`
document, if register `mmsiaddrcfgh` of the domain has bit L set
to one, then `smsiaddrcfg` and `smsiaddrcfgh` are locked as
read-only alongside `mmsiaddrcfg` and `mmsiaddrcfgh`.

Signed-off-by: Tommy Wu <tommy.wu@sifive.com>
Reviewed-by: Frank Chang <frank.chang@sifive.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Message-Id: <20230609055936.3925438-1-tommy.wu@sifive.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-06-14 10:04:30 +10:00
Steve Sistare b0182e537e exec/memory: Introduce RAM_NAMED_FILE flag
migrate_ignore_shared() is an optimization that avoids copying memory
that is visible and can be mapped on the target.  However, a
memory-backend-ram or a memory-backend-memfd block with the RAM_SHARED
flag set is not migrated when migrate_ignore_shared() is true.  This is
wrong, because the block has no named backing store, and its contents will
be lost.  To fix, ignore shared memory iff it is a named file.  Define a
new flag RAM_NAMED_FILE to distinguish this case.

Signed-off-by: Steve Sistare <steven.sistare@oracle.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Message-Id: <1686151116-253260-1-git-send-email-steven.sistare@oracle.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2023-06-13 11:28:58 +02:00
Joao Martins 6fe4f6c941 hw/vfio: Add number of dirty pages to vfio_get_dirty_bitmap tracepoint
Include the number of dirty pages on the vfio_get_dirty_bitmap tracepoint.
These are fetched from the newly added return value in
cpu_physical_memory_set_dirty_lebitmap().

Signed-off-by: Joao Martins <joao.m.martins@oracle.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Acked-by: Alex Williamson <alex.williamson@redhat.com>
Message-Id: <20230530180556.24441-3-joao.m.martins@oracle.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2023-06-13 11:28:58 +02:00
Joao Martins f80929f3af exec/ram_addr: Return number of dirty pages in cpu_physical_memory_set_dirty_lebitmap()
In preparation for including the number of dirty pages in the
vfio_get_dirty_bitmap() tracepoint, return the number of dirty pages in
cpu_physical_memory_set_dirty_lebitmap() similar to
cpu_physical_memory_sync_dirty_bitmap().

To avoid counting twice when GLOBAL_DIRTY_RATE is enabled, stash the
number of bits set per bitmap quad in a variable (@nbits) and reuse it
there.

Signed-off-by: Joao Martins <joao.m.martins@oracle.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230530180556.24441-2-joao.m.martins@oracle.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2023-06-13 11:28:58 +02:00
Bernhard Beschow 9cc44d9bd6 hw/char/parallel-isa: Export struct ISAParallelState
Allows the struct to be embedded directly into device models without additional
allocation.

Suggested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230612081238.1742-3-shentey@gmail.com>
[PMD: Update MAINTAINERS entry and use SPDX license identifier]
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2023-06-13 11:28:58 +02:00
Bernhard Beschow 8ff98e09f3 hw/char/parallel: Export struct ParallelState
Exporting ParallelState is a precondition for exporing TYPE_ISA_PARALLEL to be
performed in the next patch.

Suggested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230612081238.1742-2-shentey@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2023-06-13 11:28:58 +02:00
Philippe Mathieu-Daudé 48143e0fd2 hw/scsi/megasas: Silent GCC duplicated-cond warning
GCC9 is confused when building with CFLAG -O3:

  hw/scsi/megasas.c: In function ‘megasas_scsi_realize’:
  hw/scsi/megasas.c:2387:26: error: duplicated ‘if’ condition [-Werror=duplicated-cond]
   2387 |     } else if (s->fw_sge >= 128 - MFI_PASS_FRAME_SIZE) {
  hw/scsi/megasas.c:2385:19: note: previously used here
   2385 |     if (s->fw_sge >= MEGASAS_MAX_SGE - MFI_PASS_FRAME_SIZE) {
  cc1: all warnings being treated as errors

When this device was introduced in commit e8f943c3bc, the author
cared about modularity, using a definition for the firmware limit.

However if the firmware limit isn't changed (MEGASAS_MAX_SGE = 128),
the code ends doing the same check twice.

Per the maintainer [*]:

> The original code assumed that one could change MFI_PASS_FRAME_SIZE,
> but it turned out not to be possible as it's being hardcoded in the
> drivers themselves (even though the interface provides mechanisms to
> query it). So we can remove the duplicate lines.

Add the 'MEGASAS_MIN_SGE' definition for the '64' magic value,
slightly rewrite the condition check to simplify a bit the logic
and remove the unnecessary / duplicated check.

[*] https://lore.kernel.org/qemu-devel/e0029fc5-882f-1d63-15e3-1c3dbe9b6a2c@suse.de/

Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Message-Id: <20230328210126.16282-1-philmd@linaro.org>
2023-06-13 11:28:58 +02:00
Niklas Cassel af33a321fa hw/ide/ahci: Remove stray backslash
This backslash obviously does not belong here, so remove it.

Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-Id: <20230601134434.519805-2-nks@flawful.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2023-06-13 11:28:58 +02:00
Patrick Venture 29770e09e4 hw/i2c: Enable an id for the pca954x devices
This allows the devices to be more readily found and specified.
Without setting the name field, they can only be found by device type
name, which doesn't let you specify the second of the same device type
behind a bus.

Tested: Verified that by default the device was findable with the name
'pca954x[77]', for an instance attached at that address.

Signed-off-by: Patrick Venture <venture@google.com>
Reviewed-by: Hao Wu <wuhaotsh@google.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Acked-by: Corey Minyard <cminyard@mvista.com>
Message-Id: <20230322172136.48010-1-venture@google.com>
[PMD: Fix typo in property name]
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2023-06-13 11:28:58 +02:00
Philippe Mathieu-Daudé f1cc7c28b6 target/i386: Rename helper template headers as '.h.inc'
Since commit 139c1837db ("meson: rename included C source files
to .c.inc"), QEMU standard procedure for included C files is to
use *.c.inc.

Besides, since commit 6a0057aa22 ("docs/devel: make a statement
about includes") this is documented as the Coding Style:

  If you do use template header files they should be named with
  the ``.c.inc`` or ``.h.inc`` suffix to make it clear they are
  being included for expansion.

Therefore move the included templates in the tcg/ directory and
rename as '.h.inc'.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230608133108.72655-5-philmd@linaro.org>
2023-06-13 11:28:58 +02:00
Philippe Mathieu-Daudé 6d70b36b02 target/i386/helper: Shuffle do_cpu_init()
Move the #ifdef'ry inside do_cpu_init() instead of
declaring an empty stub for user emulation.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230602224628.59546-3-philmd@linaro.org>
2023-06-13 11:28:58 +02:00
Philippe Mathieu-Daudé 3b8484c5d2 target/i386/helper: Remove do_cpu_sipi() stub for user-mode emulation
Since commit  604664726f ("target/i386: Restrict cpu_exec_interrupt()
handler to sysemu"), do_cpu_sipi() isn't called anymore on user
emulation. Remove the now pointless stub.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230602224628.59546-2-philmd@linaro.org>
2023-06-13 11:28:58 +02:00
Philippe Mathieu-Daudé 48b9e02679 target/hppa/meson: Only build int_helper.o with system emulation
int_helper.c only contains system emulation code:
remove the #ifdef'ry and move the file to the meson
softmmu source set.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230602223016.58647-1-philmd@linaro.org>
2023-06-13 11:28:58 +02:00
Antonio Caggiano ed3958910a accel/hvf: Report HV_DENIED error
On MacOS 11 and subsequent versions, in case the resulting binary is not
signed with the proper entitlement, handle and report the HV_DENIED
error.

Signed-off-by: Antonio Caggiano <quic_acaggian@quicinc.com>
Message-Id: <20230608123014.28715-1-quic_acaggian@quicinc.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2023-06-13 11:28:58 +02:00
Philippe Mathieu-Daudé bb6af0fa51 util/cacheflush: Avoid possible redundant dcache flush on Darwin
<libkern/OSCacheControl.h> describes sys_icache_invalidate() as
"equivalent to sys_cache_control(kCacheFunctionPrepareForExecution)",
having kCacheFunctionPrepareForExecution defined as:

  /* Prepare memory for execution.  This should be called
   * after writing machine instructions to memory, before
   * executing them.  It syncs the dcache and icache. [...]
   */

Since the dcache is also sync'd, we can avoid the sys_dcache_flush()
call when both rx/rw pointers are equal.

Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Message-Id: <20230605195911.96033-1-philmd@linaro.org>
2023-06-13 11:28:58 +02:00
Philippe Mathieu-Daudé 0baf54d005 util/cacheflush: Use declarations from <OSCacheControl.h> on Darwin
Per the cache(3) man page, sys_icache_invalidate() and
sys_dcache_flush() are declared in <libkern/OSCacheControl.h>.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230605175647.88395-2-philmd@linaro.org>
2023-06-13 11:28:58 +02:00
Philippe Mathieu-Daudé f975033d56 cocoa: Fix warnings about invalid prototype declarations
Fix the following Cocoa trivial warnings:

  C compiler for the host machine: cc (clang 14.0.0 "Apple clang version 14.0.0 (clang-1400.0.29.202)")
  Objective-C compiler for the host machine: clang (clang 14.0.0)

  [100/334] Compiling Objective-C object libcommon.fa.p/net_vmnet-bridged.m.o
  net/vmnet-bridged.m:40:31: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  static char* get_valid_ifnames()
                                ^
                                 void
  [742/1436] Compiling Objective-C object libcommon.fa.p/ui_cocoa.m.o
  ui/cocoa.m:1937:22: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  static int cocoa_main()
                       ^
                        void

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Message-Id: <20230425192820.34063-1-philmd@linaro.org>
2023-06-13 11:28:58 +02:00
Andreas Schwab 7f750efcaa linux-user, bsd-user: Preserve incoming order of environment variables in the target
Do not reverse the order of environment variables in the target environ
array relative to the incoming environ order.  Some testsuites depend on a
specific order, even though it is not defined by any standard.

Signed-off-by: Andreas Schwab <schwab@suse.de>
Reviewed-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <mvmlejfsivd.fsf@suse.de>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2023-06-13 11:28:53 +02:00
Himanshu Chauhan a574b27af4 target/riscv: Smepmp: Return error when access permission not allowed in PMP
On an address match, skip checking for default permissions and return error
based on access defined in PMP configuration.

v3 Changes:
o Removed explicit return of boolean value from comparision
  of priv/allowed_priv

v2 Changes:
o Removed goto to return in place when address matches
o Call pmp_hart_has_privs_default at the end of the loop

Fixes: 90b1fafce0 ("target/riscv: Smepmp: Skip applying default rules when address matches")
Signed-off-by: Himanshu Chauhan <hchauhan@ventanamicro.com>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Weiwei Li <liweiwei@iscas.ac.cn>
Message-Id: <20230605164548.715336-1-hchauhan@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-06-13 17:45:30 +10:00
Xiao Wang 949b6bcb27 target/riscv/vector_helper.c: Remove the check for extra tail elements
Commit 752614cab8 ("target/riscv: rvv: Add tail agnostic for vector
load / store instructions") added an extra check for LMUL fragmentation,
intended for setting the "rest tail elements" in the last register for a
segment load insn.

Actually, the max_elements derived in vext_ld*() won't be a fraction of
vector register size, since the lmul encoded in desc is emul, which has
already been adjusted to 1 for LMUL fragmentation case by vext_get_emul()
in trans_rvv.c.inc, for ld_stride(), ld_us(), ld_index() and ldff().

Besides, vext_get_emul() has also taken EEW/SEW into consideration, so no
need to call vext_get_total_elems() which would base on the emul to derive
another emul, the second emul would be incorrect when esz differs from sew.

Thus this patch removes the check for extra tail elements.

Fixes: 752614cab8 ("target/riscv: rvv: Add tail agnostic for vector load / store instructions")

Signed-off-by: Xiao Wang <xiao.w.wang@intel.com>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Weiwei Li <liweiwei@iscas.ac.cn>
Message-Id: <20230607091646.4049428-1-xiao.w.wang@intel.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-06-13 17:44:41 +10:00
Xiao Wang fba59e0f46 target/riscv/vector_helper.c: clean up reference of MTYPE
There's no code using MTYPE, which was a concept used in older vector
implementation.

Signed-off-by: Xiao Wang <xiao.w.wang@intel.com>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com>
Message-Id: <20230608053517.4102648-1-xiao.w.wang@intel.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-06-13 17:43:45 +10:00
Weiwei Li b83e4f1db4 target/riscv: Fix initialized value for cur_pmmask
We initialize cur_pmmask as -1(UINT32_MAX/UINT64_MAX) and regard it
as if pointer mask is disabled in current implementation. However,
the addresses for vector load/store will be adjusted to zero in this
case and -1(UINT32_MAX/UINT64_MAX) is valid value for pmmask when
pointer mask is enabled.

Signed-off-by: Weiwei Li <liweiwei@iscas.ac.cn>
Signed-off-by: Junqiang Wang <wangjunqiang@iscas.ac.cn>
Reviewed-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com>
Message-Id: <20230610094651.43786-1-liweiwei@iscas.ac.cn>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-06-13 17:42:50 +10:00
Ivan Klokov b84694defb util/log: Add vector registers to log
Added QEMU option 'vpu' to log vector extension registers such as gpr\fpu.

Signed-off-by: Ivan Klokov <ivan.klokov@syntacore.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20230410124451.15929-2-ivan.klokov@syntacore.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-06-13 17:42:01 +10:00
Sunil V L e158a6520a docs/system: riscv: Add pflash usage details
pflash devices can be used in virt machine for different
purposes like for ROM code or S-mode FW payload. Add a
section in the documentation on how to use pflash devices
for different purposes.

Signed-off-by: Sunil V L <sunilvl@ventanamicro.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20230601045910.18646-4-sunilvl@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-06-13 17:41:01 +10:00
Sunil V L 13bdfb8b54 riscv/virt: Support using pflash via -blockdev option
Currently, pflash devices can be configured only via -pflash
or -drive options. This is the legacy way and the
better way is to use -blockdev as in other architectures.
libvirt also has moved to use -blockdev method.

To support -blockdev option, pflash devices need to be
created in instance_init itself. So, update the code to
move the virt_flash_create() to instance_init. Also, use
standard interfaces to detect whether pflash0 is
configured or not.

Signed-off-by: Sunil V L <sunilvl@ventanamicro.com>
Reported-by: Andrea Bolognani <abologna@redhat.com>
Tested-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20230601045910.18646-3-sunilvl@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-06-13 17:39:45 +10:00
Sunil V L 4263e270a2 hw/riscv: virt: Assume M-mode FW in pflash0 only when "-bios none"
Currently, virt machine supports two pflash instances each with
32MB size. However, the first pflash is always assumed to
contain M-mode firmware and reset vector is set to this if
enabled. Hence, for S-mode payloads like EDK2, only one pflash
instance is available for use. This means both code and NV variables
of EDK2 will need to use the same pflash.

The OS distros keep the EDK2 FW code as readonly. When non-volatile
variables also need to share the same pflash, it is not possible
to keep it as readonly since variables need write access.

To resolve this issue, the code and NV variables need to be separated.
But in that case we need an extra flash. Hence, modify the convention
for non-KVM guests such that, pflash0 will contain the M-mode FW
only when "-bios none" option is used. Otherwise, pflash0 will contain
the S-mode payload FW. This enables both pflash instances available
for EDK2 use.

When KVM is enabled, pflash0 is always assumed to contain the
S-mode payload firmware only.

Example usage:
1) pflash0 containing M-mode FW
qemu-system-riscv64 -bios none -pflash <mmode_fw> -machine virt
or
qemu-system-riscv64 -bios none \
-drive file=<mmode_fw>,if=pflash,format=raw,unit=0 -machine virt

2) pflash0 containing S-mode payload like EDK2
qemu-system-riscv64 -pflash <smode_fw_code> -pflash <smode_vars> -machine  virt
or
qemu-system-riscv64 -bios <opensbi_fw> \
-pflash <smode_fw_code> \
-pflash <smode_vars> \
-machine  virt
or
qemu-system-riscv64 -bios <opensbi_fw> \
-drive file=<smode_fw_code>,if=pflash,format=raw,unit=0,readonly=on \
-drive file=<smode_fw_vars>,if=pflash,format=raw,unit=1 \
-machine virt

Signed-off-by: Sunil V L <sunilvl@ventanamicro.com>
Reported-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Tested-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20230601045910.18646-2-sunilvl@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-06-13 17:38:56 +10:00
Weiwei Li 90b0aecaf9 target/riscv: Remove pc_succ_insn from DisasContext
pc_succ_insn is no longer useful after the introduce of cur_insn_len
and all pc related value use diff value instead of absolute value.

Signed-off-by: Weiwei Li <liweiwei@iscas.ac.cn>
Signed-off-by: Junqiang Wang <wangjunqiang@iscas.ac.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20230526072124.298466-8-liweiwei@iscas.ac.cn>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-06-13 17:38:08 +10:00
Weiwei Li 356c13f94d target/riscv: Enable PC-relative translation
Add a base pc_save for PC-relative translation(CF_PCREL).
Diable the directly sync pc from tb by riscv_cpu_synchronize_from_tb.
Use gen_pc_plus_diff to get the pc-relative address.
Enable CF_PCREL in System mode.

Signed-off-by: Weiwei Li <liweiwei@iscas.ac.cn>
Signed-off-by: Junqiang Wang <wangjunqiang@iscas.ac.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20230526072124.298466-7-liweiwei@iscas.ac.cn>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-06-13 17:37:12 +10:00
Weiwei Li 227fb82f99 target/riscv: Use true diff for gen_pc_plus_diff
Reduce reliance on absolute values by using true pc difference for
gen_pc_plus_diff() to prepare for PC-relative translation.

Signed-off-by: Weiwei Li <liweiwei@iscas.ac.cn>
Signed-off-by: Junqiang Wang <wangjunqiang@iscas.ac.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20230526072124.298466-6-liweiwei@iscas.ac.cn>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-06-13 17:36:16 +10:00
Weiwei Li 022c7550d9 target/riscv: Change gen_set_pc_imm to gen_update_pc
Reduce reliance on absolute values(by passing pc difference) to
prepare for PC-relative translation.

Signed-off-by: Weiwei Li <liweiwei@iscas.ac.cn>
Signed-off-by: Junqiang Wang <wangjunqiang@iscas.ac.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20230526072124.298466-5-liweiwei@iscas.ac.cn>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-06-13 17:35:20 +10:00
Weiwei Li 1df8497b9d target/riscv: Change gen_goto_tb to work on displacements
Reduce reliance on absolute value to prepare for PC-relative translation.

Signed-off-by: Weiwei Li <liweiwei@iscas.ac.cn>
Signed-off-by: Junqiang Wang <wangjunqiang@iscas.ac.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20230526072124.298466-4-liweiwei@iscas.ac.cn>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-06-13 17:34:24 +10:00
Weiwei Li 8ef23a329a target/riscv: Introduce cur_insn_len into DisasContext
Use cur_insn_len to store the length of the current instruction to
prepare for PC-relative translation.

Signed-off-by: Weiwei Li <liweiwei@iscas.ac.cn>
Signed-off-by: Junqiang Wang <wangjunqiang@iscas.ac.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20230526072124.298466-3-liweiwei@iscas.ac.cn>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-06-13 17:33:28 +10:00
Weiwei Li bfc4f9e351 target/riscv: Fix target address to update badaddr
Compute the target address before storing it into badaddr
when mis-aligned exception is triggered.
Use a target_pc temp to store the target address to avoid
the confusing operation that udpate target address into
cpu_pc before misalign check, then update it into badaddr
and restore cpu_pc to current pc if exception is triggered.

Signed-off-by: Weiwei Li <liweiwei@iscas.ac.cn>
Signed-off-by: Junqiang Wang <wangjunqiang@iscas.ac.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20230526072124.298466-2-liweiwei@iscas.ac.cn>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-06-13 17:32:32 +10:00
Weiwei Li 3bd87176ee disas/riscv.c: Remove redundant parentheses
Remove redundant parenthese and fix multi-line comments.

Signed-off-by: Weiwei Li <liweiwei@iscas.ac.cn>
Signed-off-by: Junqiang Wang <wangjunqiang@iscas.ac.cn>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20230523093539.203909-9-liweiwei@iscas.ac.cn>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-06-13 17:31:35 +10:00
Weiwei Li 98624d1373 disas/riscv.c: Fix lines with over 80 characters
Fix lines with over 80 characters.

Signed-off-by: Weiwei Li <liweiwei@iscas.ac.cn>
Signed-off-by: Junqiang Wang <wangjunqiang@iscas.ac.cn>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20230523093539.203909-8-liweiwei@iscas.ac.cn>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-06-13 17:30:47 +10:00
Weiwei Li 8deb4756a9 disas/riscv.c: Remove unused decomp_rv32/64 value for vector instructions
Currently decomp_rv32 and decomp_rv64 value in opcode_data for vector
instructions are the same op index as their own. And they have no
functional decomp_data. So they have no functional difference from just
leaving them as zero.

Signed-off-by: Weiwei Li <liweiwei@iscas.ac.cn>
Signed-off-by: Junqiang Wang <wangjunqiang@iscas.ac.cn>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20230523093539.203909-7-liweiwei@iscas.ac.cn>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-06-13 17:29:59 +10:00
Weiwei Li c54dab4c85 disas/riscv.c: Support disas for Z*inx extensions
Support disas for Z*inx instructions only when Zfinx extension is supported.

Signed-off-by: Weiwei Li <liweiwei@iscas.ac.cn>
Signed-off-by: Junqiang Wang <wangjunqiang@iscas.ac.cn>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20230523093539.203909-6-liweiwei@iscas.ac.cn>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-06-13 17:29:10 +10:00
Weiwei Li 2a2b221b65 disas/riscv.c: Support disas for Zcm* extensions
Support disas for Zcmt* instructions only when related extensions
are supported.

Signed-off-by: Weiwei Li <liweiwei@iscas.ac.cn>
Signed-off-by: Junqiang Wang <wangjunqiang@iscas.ac.cn>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20230523093539.203909-5-liweiwei@iscas.ac.cn>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-06-13 17:28:22 +10:00
Weiwei Li 454c220100 target/riscv: Pass RISCVCPUConfig as target_info to disassemble_info
Pass RISCVCPUConfig as disassemble_info.target_info to support disas
of conflict instructions related to specific extensions.

Signed-off-by: Weiwei Li <liweiwei@iscas.ac.cn>
Signed-off-by: Junqiang Wang <wangjunqiang@iscas.ac.cn>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20230523093539.203909-4-liweiwei@iscas.ac.cn>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-06-13 17:27:33 +10:00
Weiwei Li b902ff2946 target/riscv: Split RISCVCPUConfig declarations from cpu.h into cpu_cfg.h
Split RISCVCPUConfig declarations to prepare for passing it to disas.

Signed-off-by: Weiwei Li <liweiwei@iscas.ac.cn>
Signed-off-by: Junqiang Wang <wangjunqiang@iscas.ac.cn>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Message-Id: <20230523093539.203909-3-liweiwei@iscas.ac.cn>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-06-13 17:26:45 +10:00
Weiwei Li d02eb5bcde disas: Change type of disassemble_info.target_info to pointer
Use pointer to pass more information of target to disasembler,
such as pass cpu.cfg related information in following commits.

Signed-off-by: Weiwei Li <liweiwei@iscas.ac.cn>
Signed-off-by: Junqiang Wang <wangjunqiang@iscas.ac.cn>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20230523093539.203909-2-liweiwei@iscas.ac.cn>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-06-13 17:25:47 +10:00
Mayuresh Chitale 3594e3e584 target/riscv: smstateen knobs
Add knobs to allow users to enable smstateen and also export it via the
ISA extension string.

Signed-off-by: Mayuresh Chitale <mchitale@ventanamicro.com>
Reviewed-by: Weiwei Li<liweiwei@iscas.ac.cn>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20230518175058.2772506-4-mchitale@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-06-13 17:24:48 +10:00
Mayuresh Chitale e0b343b5fa target/riscv: Reuse tb->flags.FS
When misa.F is 0 tb->flags.FS field is unused and can be used to save
the current state of smstateen0.FCSR check which is needed by the
floating point translation routines.

Signed-off-by: Mayuresh Chitale <mchitale@ventanamicro.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Weiwei Li <liweiwei@iscas.ac.cn>
Message-Id: <20230518175058.2772506-3-mchitale@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-06-13 17:24:00 +10:00
Mayuresh Chitale 9514fc72d0 target/riscv: smstateen check for fcsr
Implement the s/h/mstateen.fcsr bit as defined in the smstateen spec
and check for it when accessing the fcsr register and its fields.

Signed-off-by: Mayuresh Chitale <mchitale@ventanamicro.com>
Reviewed-by: Weiwei Li <liweiwei@iscas.ac.cn>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20230518175058.2772506-2-mchitale@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-06-13 17:23:04 +10:00
Weiwei Li 30a0d77622 target/riscv: Update cur_pmmask/base when xl changes
write_mstatus() can only change current xl when in debug mode.
And we need update cur_pmmask/base in this case.

Signed-off-by: Weiwei Li <liweiwei@iscas.ac.cn>
Signed-off-by: Junqiang Wang <wangjunqiang@iscas.ac.cn>
Reviewed-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com>
Message-Id: <20230524015933.17349-3-liweiwei@iscas.ac.cn>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-06-13 17:22:15 +10:00