Commit Graph

92605 Commits

Author SHA1 Message Date
Marc-André Lureau
2668dc7b5d docs/sphinx: add sphinx modules to include D-Bus documentation
Add a new dbus-doc directive to import D-Bus interfaces documentation
from the introspection XML. The comments annotations follow the
gtkdoc/kerneldoc style, and should be formatted with reST.

Note: I realize after the fact that I was implementing those modules
with sphinx 4, and that we have much lower requirements. Instead of
lowering the features and code (removing type annotations etc), let's
have a warning in the documentation when the D-Bus modules can't be
used, and point to the source XML file in that case.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
2021-12-21 10:50:21 +04:00
Marc-André Lureau
20f19713ef scripts: teach modinfo to skip non-C sources
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
2021-12-21 10:50:21 +04:00
Marc-André Lureau
ebced09185 console: save current scanout details
Add a new DisplayScanout structure to save the current scanout details.
This allows to attach later UI backends and set the scanout.

Introduce displaychangelistener_display_console() helper function to
handle the dpy_gfx_switch/gl_scanout() & dpy_gfx_update() calls.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
2021-12-21 10:50:21 +04:00
Marc-André Lureau
f6ef71bded ui: move qemu_spice_fill_device_address to ui/util.c
Other backends can use it.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
2021-12-21 10:50:21 +04:00
Marc-André Lureau
5e79d516e8 ui: split the GL context in a different object
This will allow to have one GL context but a variable number of
listeners.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
2021-12-21 10:50:21 +04:00
Marc-André Lureau
7cc712e986 ui: dispatch GL events to all listeners
For now, only one listener can receive GL events. Let's dispatch to all
listeners. (preliminary check ensure there is a single listener now
during regitration, and in next patches, compatible listeners only)

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
2021-12-21 10:50:21 +04:00
Marc-André Lureau
f6413cbfd0 ui: simplify gl unblock & flush
GraphicHw.gl_flushed was introduced to notify the
device (vhost-user-gpu) that the GL resources (the display scanout) are
no longer needed.

It was decoupled from QEMU own gl-blocking mechanism, but that
difference isn't helping. Instead, we can reuse QEMU gl-blocking and
notify virtio_gpu_gl_flushed() when unblocking (to unlock
vhost-user-gpu).

An extra block/unblock is added arount dpy_gl_update() so existing
backends that don't block will have the flush event handled. It will
also help when there are no backends associated.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
2021-12-21 10:50:21 +04:00
Marc-André Lureau
a9b1e471e1 ui: add a gl-unblock warning timer
Similar to the one that exists for Spice, so we can investigate if
something is locked.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
2021-12-21 10:50:21 +04:00
Marc-André Lureau
a4ddc31417 ui: make gl_block use a counter
Track multiple callers blocking requests.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
2021-12-21 10:50:21 +04:00
Marc-André Lureau
ac32b2fff1 ui: associate GL context outside of display listener registration
Consoles can have an associated GL context, without listeners (they may
be added or removed later on).

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
2021-12-21 10:50:21 +04:00
Marc-André Lureau
4f41814991 ui: factor out qemu_console_set_display_gl_ctx()
The next patch will make use of this function to dissociate
DisplayChangeListener from GL context.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2021-12-21 10:50:21 +04:00
Marc-André Lureau
ca19ef5299 ui: do not delay further remote resize
A remote client, such as Spice, will already avoid flooding the stream
by delaying the resize requests.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
2021-12-21 10:50:21 +04:00
Marc-André Lureau
46e4609e33 virtio-gpu: use VIRTIO_GPU_RESOURCE_FLAG_Y_0_TOP
It's part of Linux headers for a while now.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2021-12-21 10:50:21 +04:00
Marc-André Lureau
8f5f1ea0c0 hw/display: report an error if virgl initialization failed
Currently, virgl initialization error is silent. Make it verbose instead.

(this is likely going to bug later on, as the device isn't fully
initialized)

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2021-12-21 10:50:21 +04:00
Marc-André Lureau
505dbf9b99 ui/clipboard: add a clipboard reset serial event
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
2021-12-21 10:50:21 +04:00
Marc-André Lureau
349504e5a1 ui/clipboard: add qemu_clipboard_check_serial()
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
2021-12-21 10:50:21 +04:00
Marc-André Lureau
835f69f4e6 ui/vdagent: add serial capability support
The Spice agent implements a simple serial mechanism to avoid clipboard
races between client & guest. See:
045a6978d6

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
2021-12-21 10:50:21 +04:00
Marc-André Lureau
1b17f1e9f9 ui: generalize clipboard notifier
Use a QemuClipboardNotify union type for extendable clipboard events.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
2021-12-21 10:50:21 +04:00
Marc-André Lureau
5912745288 ui/vdagent: replace #if 0 with protocol version check
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
2021-12-21 10:50:21 +04:00
Marc-André Lureau
ddece46576 ui/vdagent: add CHECK_SPICE_PROTOCOL_VERSION
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
2021-12-21 10:50:21 +04:00
Richard Henderson
2bf40d0841 Move errno processing from safe_syscall() to safe_syscall_base().
Move safe_syscall() from linux-user to common-user.
 Add FreeBSD support to safe_syscall_base().
 Tidy top-level meson.build wrt {bsd,linux}-user.
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Merge tag 'pull-user-20211220' of https://gitlab.com/rth7680/qemu into staging

Move errno processing from safe_syscall() to safe_syscall_base().
Move safe_syscall() from linux-user to common-user.
Add FreeBSD support to safe_syscall_base().
Tidy top-level meson.build wrt {bsd,linux}-user.

# gpg: Signature made Mon 20 Dec 2021 11:46:11 AM PST
# gpg:                using RSA key 7A481E78868B4DB6A85A05C064DF38E8AF7E215F
# gpg:                issuer "richard.henderson@linaro.org"
# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 7A48 1E78 868B 4DB6 A85A  05C0 64DF 38E8 AF7E 215F

* tag 'pull-user-20211220' of https://gitlab.com/rth7680/qemu:
  meson: Move bsd_user_ss to bsd-user/
  meson: Move linux_user_ss to linux-user/
  linux-user: Move thunk.c from top-level
  common-user: Adjust system call return on FreeBSD
  common-user: Move safe-syscall.* from linux-user
  bsd-user: Create special-errno.h
  linux-user: Create special-errno.h
  linux-user: Rename TARGET_QEMU_ESIGRETURN to QEMU_ESIGRETURN
  bsd-user: Rename TARGET_ERESTARTSYS to QEMU_ERESTARTSYS
  linux-user: Rename TARGET_ERESTARTSYS to QEMU_ERESTARTSYS
  linux-user: Remove HAVE_SAFE_SYSCALL and hostdep.h
  linux-user/host/sparc64: Add safe-syscall.inc.S
  linux-user/host/mips: Add safe-syscall.inc.S
  linux-user: Move syscall error detection into safe_syscall_base
  linux-user: Untabify all safe-syscall.inc.S

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-12-20 13:20:07 -08:00
Richard Henderson
c7d773ae49 First RISC-V PR for QEMU 7.0
- Add support for ratified 1.0 Vector extension
  - Drop support for draft 0.7.1 Vector extension
  - Support Zfhmin and Zfh extensions
  - Improve kernel loading for non-Linux platforms
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Merge tag 'pull-riscv-to-apply-20211220-1' of github.com:alistair23/qemu into staging

First RISC-V PR for QEMU 7.0

 - Add support for ratified 1.0 Vector extension
 - Drop support for draft 0.7.1 Vector extension
 - Support Zfhmin and Zfh extensions
 - Improve kernel loading for non-Linux platforms

# gpg: Signature made Sun 19 Dec 2021 08:56:08 PM PST
# gpg:                using RSA key F6C4AC46D4934868D3B8CE8F21E10D29DF977054
# gpg: Good signature from "Alistair Francis <alistair@alistair23.me>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: F6C4 AC46 D493 4868 D3B8  CE8F 21E1 0D29 DF97 7054

* tag 'pull-riscv-to-apply-20211220-1' of github.com:alistair23/qemu: (88 commits)
  hw/riscv: Use load address rather than entry point for fw_dynamic next_addr
  target/riscv: Enable bitmanip Zb[abcs] instructions
  riscv: Set 5.4 as minimum kernel version for riscv32
  target/riscv: rvv-1.0: Add ELEN checks for widening and narrowing instructions
  target/riscv: rvv-1.0: update opivv_vadc_check() comment
  target/riscv: rvv-1.0: rename vmandnot.mm and vmornot.mm to vmandn.mm and vmorn.mm
  target/riscv: rvv-1.0: add vector unit-stride mask load/store insns
  target/riscv: rvv-1.0: add evl parameter to vext_ldst_us()
  target/riscv: rvv-1.0: add vsetivli instruction
  target/riscv: rvv-1.0: rename r2_zimm to r2_zimm11
  target/riscv: rvv-1.0: floating-point reciprocal estimate instruction
  target/riscv: rvv-1.0: floating-point reciprocal square-root estimate instruction
  target/riscv: gdb: support vector registers for rv64 & rv32
  target/riscv: rvv-1.0: trigger illegal instruction exception if frm is not valid
  target/riscv: rvv-1.0: implement vstart CSR
  target/riscv: rvv-1.0: relax RV_VLEN_MAX to 1024-bits
  target/riscv: rvv-1.0: narrowing floating-point/integer type-convert
  target/riscv: add "set round to odd" rounding mode helper function
  target/riscv: rvv-1.0: widening floating-point/integer type-convert
  target/riscv: rvv-1.0: floating-point/integer type-convert instructions
  ...

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-12-20 10:25:40 -08:00
Richard Henderson
3363615a65 meson: Move bsd_user_ss to bsd-user/
We have no need to reference bsd_user_ss outside of bsd-user.
Go ahead and merge it directly into specific_ss.

Reviewed-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-12-20 10:13:43 -08:00
Richard Henderson
4d06bb4e03 meson: Move linux_user_ss to linux-user/
We have no need to reference linux_user_ss outside of linux-user.
Go ahead and merge it directly into specific_ss.

Reviewed-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-12-20 10:13:12 -08:00
Richard Henderson
ff9c1e5500 linux-user: Move thunk.c from top-level
So far, linux-user is the only user of these functions.
Clean up the build machinery by restricting it to linux-user.

Reviewed-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-12-20 10:12:29 -08:00
Richard Henderson
5bfd125ec8 common-user: Adjust system call return on FreeBSD
FreeBSD system calls return positive errno.  On the 4 hosts for
which we have support, error is indicated by the C bit set or clear.

Reviewed-by: Warner Losh <imp@bsdimp.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-12-20 10:12:29 -08:00
Richard Henderson
bbf15aaf7c common-user: Move safe-syscall.* from linux-user
Move linux-user safe-syscall.S and safe-syscall-error.c to common-user
so that bsd-user can also use it.  Also move safe-syscall.h to
include/user/.  Since there is nothing here that is related to the guest,
as opposed to the host, build it once.

Reviewed-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-12-20 10:12:24 -08:00
Jessica Clarke
7e322a7f23 hw/riscv: Use load address rather than entry point for fw_dynamic next_addr
The original BBL boot method had the kernel embedded as an opaque blob
that was blindly jumped to, which OpenSBI implemented as fw_payload.
OpenSBI then implemented fw_jump, which allows the payload to be loaded
elsewhere, but still blindly jumps to a fixed address at which the
kernel is to be loaded. Finally, OpenSBI introduced fw_dynamic, which
allows the previous stage to inform it where to jump to, rather than
having to blindly guess like fw_jump, or embed the payload as part of
the build like fw_payload. When used with an opaque binary (i.e. the
output of objcopy -O binary), it matches the behaviour of the previous
methods. However, when used with an ELF, QEMU currently passes on the
ELF's entry point address, which causes a discrepancy compared with all
the other boot methods if that entry point is not the first instruction
in the binary.

This difference specific to fw_dynamic with an ELF is not apparent when
booting Linux, since its entry point is the first instruction in the
binary. However, FreeBSD has a separate ELF entry point, following the
calling convention used by its bootloader, that differs from the first
instruction in the binary, used for the legacy SBI entry point, and so
the specific combination of QEMU's default fw_dynamic firmware with
booting FreeBSD as an ELF rather than a raw binary does not work.

Thus, align the behaviour when loading an ELF with the behaviour when
loading a raw binary; namely, use the base address of the loaded kernel
in place of the entry point.

The uImage code is left as-is in using the U-Boot header's entry point,
since the calling convention for that entry point is the same as the SBI
one and it mirrors what U-Boot will do.

Signed-off-by: Jessica Clarke <jrtc27@jrtc27.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20211214032456.70203-1-jrtc27@jrtc27.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-12-20 14:53:31 +10:00
Vineet Gupta
0643c12e4b target/riscv: Enable bitmanip Zb[abcs] instructions
The bitmanip extension has now been ratified [1] and upstream tooling
(gcc/binutils) support it too, so move them out of experimental and also
enable by default (for better test exposure/coverage)

[1] https://wiki.riscv.org/display/TECH/Recently+Ratified+Extensions

Signed-off-by: Vineet Gupta <vineetg@rivosinc.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20211216051844.3921088-1-vineetg@rivosinc.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-12-20 14:53:31 +10:00
Khem Raj
a7cad953fa riscv: Set 5.4 as minimum kernel version for riscv32
5.4 is first stable API as far as rv32 is concerned see [1]

[1] https://sourceware.org/git/?p=glibc.git;a=commit;h=7a55dd3fb6d2c307a002a16776be84310b9c8989

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Alistair Francis <alistair.francis@wdc.com>
Cc: Bin Meng <bin.meng@windriver.com>
Message-Id: <20211216073111.2890607-1-raj.khem@gmail.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-12-20 14:53:31 +10:00
Frank Chang
cc13aa3614 target/riscv: rvv-1.0: Add ELEN checks for widening and narrowing instructions
SEW has the limitation which cannot exceed ELEN.

Widening instructions have a destination group with EEW = 2*SEW
and narrowing instructions have a source operand with EEW = 2*SEW.
Both of the instructions have the limitation of: 2*SEW <= ELEN.

Signed-off-by: Frank Chang <frank.chang@sifive.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20211210075704.23951-78-frank.chang@sifive.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-12-20 14:53:31 +10:00
Frank Chang
45ca2ca6bd target/riscv: rvv-1.0: update opivv_vadc_check() comment
Vector Integer Add-with-Carry / Subtract-with-Borrow Instructions is
moved to Section 11.4 in RVV v1.0 spec. Update the comment, no
functional changes.

Signed-off-by: Frank Chang <frank.chang@sifive.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20211210075704.23951-77-frank.chang@sifive.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-12-20 14:53:31 +10:00
Frank Chang
9c0d2559de target/riscv: rvv-1.0: rename vmandnot.mm and vmornot.mm to vmandn.mm and vmorn.mm
Signed-off-by: Frank Chang <frank.chang@sifive.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20211210075704.23951-76-frank.chang@sifive.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-12-20 14:53:31 +10:00
Frank Chang
26086aea0d target/riscv: rvv-1.0: add vector unit-stride mask load/store insns
Signed-off-by: Frank Chang <frank.chang@sifive.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20211210075704.23951-75-frank.chang@sifive.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-12-20 14:53:31 +10:00
Frank Chang
5c89e9c096 target/riscv: rvv-1.0: add evl parameter to vext_ldst_us()
Add supports of Vector unit-stride mask load/store instructions
(vlm.v, vsm.v), which has:
    evl (effective vector length) = ceil(env->vl / 8).

The new instructions operate the same as unmasked byte loads and stores.
Add evl parameter to reuse vext_ldst_us().

Signed-off-by: Frank Chang <frank.chang@sifive.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20211210075704.23951-74-frank.chang@sifive.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-12-20 14:53:31 +10:00
Frank Chang
34a2c2d81a target/riscv: rvv-1.0: add vsetivli instruction
Signed-off-by: Frank Chang <frank.chang@sifive.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20211210075704.23951-73-frank.chang@sifive.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-12-20 14:53:31 +10:00
Frank Chang
6b5c8eb3e7 target/riscv: rvv-1.0: rename r2_zimm to r2_zimm11
Rename r2_zimm to r2_zimm11 for the upcoming vsetivli instruction.
vsetivli has 10-bits of zimm but vsetvli has 11-bits of zimm.

Signed-off-by: Frank Chang <frank.chang@sifive.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20211210075704.23951-72-frank.chang@sifive.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-12-20 14:53:31 +10:00
Frank Chang
55c35407c3 target/riscv: rvv-1.0: floating-point reciprocal estimate instruction
Implement the floating-point reciprocal estimate to 7 bits instruction.

Signed-off-by: Frank Chang <frank.chang@sifive.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20211210075704.23951-71-frank.chang@sifive.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-12-20 14:53:31 +10:00
Frank Chang
e848a1e563 target/riscv: rvv-1.0: floating-point reciprocal square-root estimate instruction
Implement the floating-point reciprocal square-root estimate to 7 bits
instruction.

Signed-off-by: Frank Chang <frank.chang@sifive.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20211210075704.23951-70-frank.chang@sifive.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-12-20 14:53:31 +10:00
Hsiangkai Wang
719d3561b2 target/riscv: gdb: support vector registers for rv64 & rv32
Signed-off-by: Hsiangkai Wang <kai.wang@sifive.com>
Signed-off-by: Greentime Hu <greentime.hu@sifive.com>
Signed-off-by: Frank Chang <frank.chang@sifive.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20211210075704.23951-69-frank.chang@sifive.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-12-20 14:53:31 +10:00
Frank Chang
d6c4d3f2a6 target/riscv: rvv-1.0: trigger illegal instruction exception if frm is not valid
If the frm field contains an invalid rounding mode (101-111),
attempting to execute any vector floating-point instruction, even
those that do not depend on the rounding mode, will raise an illegal
instruction exception.

Call gen_set_rm() with DYN rounding mode to check and trigger illegal
instruction exception if frm field contains invalid value at run-time
for vector floating-point instructions.

Signed-off-by: Frank Chang <frank.chang@sifive.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20211210075704.23951-68-frank.chang@sifive.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-12-20 14:53:31 +10:00
Frank Chang
f714361ed7 target/riscv: rvv-1.0: implement vstart CSR
* Update and check vstart value for vector instructions.
* Add whole register move instruction helper functions as we have to
  call helper function for case where vstart is not zero.
* Remove probe_pages() calls in vector load/store instructions
  (except fault-only-first loads) to raise the memory access exception
  at the exact processed vector element.

Signed-off-by: Frank Chang <frank.chang@sifive.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20211210075704.23951-67-frank.chang@sifive.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-12-20 14:53:31 +10:00
Frank Chang
8a4b52575a target/riscv: rvv-1.0: relax RV_VLEN_MAX to 1024-bits
Signed-off-by: Frank Chang <frank.chang@sifive.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20211210075704.23951-66-frank.chang@sifive.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-12-20 14:53:31 +10:00
Frank Chang
ff679b58e3 target/riscv: rvv-1.0: narrowing floating-point/integer type-convert
Signed-off-by: Frank Chang <frank.chang@sifive.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20211210075704.23951-65-frank.chang@sifive.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-12-20 14:53:31 +10:00
Frank Chang
75804f7131 target/riscv: add "set round to odd" rounding mode helper function
helper_set_rounding_mode() is responsible for SIGILL, and "round to odd"
should be an interface private to translation, so add a new independent
helper_set_rod_rounding_mode().

Signed-off-by: Frank Chang <frank.chang@sifive.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20211210075704.23951-64-frank.chang@sifive.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-12-20 14:53:31 +10:00
Frank Chang
3ce4c09df7 target/riscv: rvv-1.0: widening floating-point/integer type-convert
Add the following instructions:

* vfwcvt.rtz.xu.f.v
* vfwcvt.rtz.x.f.v

Also adjust GEN_OPFV_WIDEN_TRANS() to accept multiple floating-point
rounding modes.

Signed-off-by: Frank Chang <frank.chang@sifive.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20211210075704.23951-63-frank.chang@sifive.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-12-20 14:53:31 +10:00
Frank Chang
900da87ab9 target/riscv: rvv-1.0: floating-point/integer type-convert instructions
Add the following instructions:

* vfcvt.rtz.xu.f.v
* vfcvt.rtz.x.f.v

Also adjust GEN_OPFV_TRANS() to accept multiple floating-point rounding
modes.

Signed-off-by: Frank Chang <frank.chang@sifive.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20211210075704.23951-62-frank.chang@sifive.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-12-20 14:53:31 +10:00
Frank Chang
986c895de1 target/riscv: introduce floating-point rounding mode enum
Signed-off-by: Frank Chang <frank.chang@sifive.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20211210075704.23951-61-frank.chang@sifive.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-12-20 14:53:31 +10:00
Frank Chang
49c5611a97 target/riscv: rvv-1.0: floating-point min/max instructions
Signed-off-by: Frank Chang <frank.chang@sifive.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20211210075704.23951-60-frank.chang@sifive.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-12-20 14:53:31 +10:00
Frank Chang
c3536f2f55 target/riscv: rvv-1.0: remove integer extract instruction
Signed-off-by: Frank Chang <frank.chang@sifive.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20211210075704.23951-59-frank.chang@sifive.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-12-20 14:53:31 +10:00