qemu/target/riscv
Christoph Muellner 260b594d8a RISC-V: Add Zawrs ISA extension support
This patch adds support for the Zawrs ISA extension.
Given the current (incomplete) implementation of reservation sets
there seems to be no way to provide a full emulation of the WRS
instruction (wake on reservation set invalidation or timeout or
interrupt). Therefore, we just exit the TB and return to the main loop.

The specification can be found here:
  https://github.com/riscv/riscv-zawrs/blob/main/zawrs.adoc

Note, that the Zawrs extension is frozen, but not ratified yet.

Changes since v3:
* Remove "RFC" since the extension is frozen
* Rebase on master and fix integration issues
* Fix entry ordering in extension list

Changes since v2:
* Rebase on master and resolve conflicts
* Adjustments according to a specification change
* Inline REQUIRE_ZAWRS() since it has only one user

Changes since v1:
* Adding zawrs to the ISA string that is passed to the kernel

Signed-off-by: Christoph Müllner <christoph.muellner@vrull.eu>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20221005144948.3421504-1-christoph.muellner@vrull.eu>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-01-06 10:42:55 +10:00
..
insn_trans RISC-V: Add Zawrs ISA extension support 2023-01-06 10:42:55 +10:00
arch_dump.c dump: Replace opaque DumpState pointer with a typed one 2022-10-06 19:30:43 +04:00
bitmanip_helper.c target/riscv: rvk: add support for zbkx extension 2022-04-29 10:47:45 +10:00
common-semi-target.h semihosting: Split out common-semi-target.h 2022-06-28 04:35:07 +05:30
cpu_bits.h target/riscv: Add smstateen support 2023-01-06 10:42:55 +10:00
cpu_helper.c target/riscv: support cache-related PMU events in virtual mode 2023-01-06 10:42:55 +10:00
cpu_user.h Supply missing header guards 2019-06-12 13:20:21 +02:00
cpu-param.h Normalize header guard symbol definition 2022-05-11 16:50:26 +02:00
cpu.c RISC-V: Add Zawrs ISA extension support 2023-01-06 10:42:55 +10:00
cpu.h RISC-V: Add Zawrs ISA extension support 2023-01-06 10:42:55 +10:00
crypto_helper.c target/riscv: rvk: add support for zksed/zksh extension 2022-04-29 10:47:45 +10:00
csr.c target/riscv: Typo fix in sstc() predicate 2023-01-06 10:42:55 +10:00
debug.c target/riscv: Add itrigger_enabled field to CPURISCVState 2023-01-06 10:42:55 +10:00
debug.h target/riscv: Add itrigger support when icount is enabled 2023-01-06 10:42:55 +10:00
fpu_helper.c target/riscv: add support for zhinx/zhinxmin 2022-03-03 13:14:50 +10:00
gdbstub.c target/riscv: Check the correct exception cause in vector GDB stub 2022-09-27 07:04:38 +10:00
helper.h target/riscv: Add itrigger support when icount is not enabled 2023-01-06 10:42:55 +10:00
insn16.decode target/riscv: fix shifts shamt value for rv128c 2022-09-07 09:18:32 +02:00
insn32.decode RISC-V: Add Zawrs ISA extension support 2023-01-06 10:42:55 +10:00
instmap.h target/riscv: Update [m|h]tinst CSR in riscv_cpu_do_interrupt() 2022-09-07 09:18:32 +02:00
internals.h target/riscv: rvv: Add mask agnostic for vv instructions 2022-09-07 09:18:32 +02:00
Kconfig meson: Introduce target-specific Kconfig 2021-07-09 18:21:34 +02:00
kvm_riscv.h target/riscv: Support setting external interrupt by KVM 2022-01-21 15:52:56 +10:00
kvm-stub.c target/riscv: Support setting external interrupt by KVM 2022-01-21 15:52:56 +10:00
kvm.c kvm: allow target-specific accelerator properties 2022-10-10 09:23:16 +02:00
m128_helper.c target/riscv: support for 128-bit M extension 2022-01-08 15:46:10 +10:00
machine.c target/riscv: Add itrigger_enabled field to CPURISCVState 2023-01-06 10:42:55 +10:00
meson.build target/riscv: Add stimecmp support 2022-09-07 09:19:15 +02:00
monitor.c target/riscv: Fix incorrect PTE merge in walk_pte 2022-04-29 10:47:46 +10:00
op_helper.c target/riscv: Clear mstatus.MPRV when leaving M-mode for priv spec 1.12+ 2023-01-06 10:42:55 +10:00
pmp.c target/riscv: Fix PMP propagation for tlb 2023-01-06 10:42:55 +10:00
pmp.h target/riscv: Fix PMP propagation for tlb 2023-01-06 10:42:55 +10:00
pmu.c hw/riscv: virt: Add PMU DT node to the device tree 2022-09-07 09:19:15 +02:00
pmu.h hw/riscv: virt: Add PMU DT node to the device tree 2022-09-07 09:19:15 +02:00
sbi_ecall_interface.h Clean up ill-advised or unusual header guards 2022-05-11 16:50:01 +02:00
time_helper.c target/riscv: Add vstimecmp support 2022-09-07 09:19:15 +02:00
time_helper.h target/riscv: Add stimecmp support 2022-09-07 09:19:15 +02:00
trace-events target/riscv: Add ePMP CSR access functions 2021-05-11 20:02:06 +10:00
trace.h trace: switch position of headers to what Meson requires 2020-08-21 06:18:24 -04:00
translate.c RISC-V: Add Zawrs ISA extension support 2023-01-06 10:42:55 +10:00
vector_helper.c cleanup: Tweak and re-run return_directly.cocci 2022-12-14 16:19:35 +01:00
XVentanaCondOps.decode target/riscv: Add XVentanaCondOps custom extension 2022-02-16 12:24:18 +10:00