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0824121660
qemu/target/riscv
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Daniel Henrique Barboza 0824121660 target/riscv: add zihpm extension flag for TCG 
zihpm is the Hardware Performance Counters extension described in
chapter 12 of the unprivileged spec. It describes support for 29
unprivileged performance counters, hpmcounter3-hpmcounter31.

As with zicntr, QEMU already implements zihpm before it was even an
extension. zihpm is also part of the RVA22 profile, so add it to QEMU
to complement the future profile implementation. Default it to 'true'
for all existing CPUs since it was always present in the code.

As for disabling it, there is already code in place in
target/riscv/csr.c in all predicates for these counters (ctr() and
mctr()) that disables them if cpu->cfg.pmu_num is zero. Thus, setting
cpu->cfg.pmu_num to zero if 'zihpm=false' is enough to disable the
extension.

Set cpu->pmu_avail_ctrs mask to zero as well since this is also checked
to verify if the counters exist.

Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-ID: <20231023153927.435083-4-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-11-07 11:06:02 +10:00
..
insn_trans target/riscv: rename ext_icboz to ext_zicboz 2023-11-07 11:02:17 +10:00
kvm target/riscv/kvm: add zicntr reg 2023-11-07 11:06:02 +10:00
tcg target/riscv: add zihpm extension flag for TCG 2023-11-07 11:06:02 +10:00
arch_dump.c target/riscv: Fix format for comments 2023-05-05 10:49:50 +10:00
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 M-mode virtual interrupt and IRQ filtering support. 2023-11-07 11:02:17 +10:00
cpu_cfg.h target/riscv: add zihpm extension flag for TCG 2023-11-07 11:06:02 +10:00
cpu_helper.c target/riscv: Add HS-mode virtual interrupt and IRQ filtering support. 2023-11-07 11:02:17 +10:00
cpu_user.h Supply missing header guards 2019-06-12 13:20:21 +02:00
cpu_vendorid.h target/riscv: add Ventana's Veyron V1 CPU 2023-05-05 10:49:50 +10:00
cpu-param.h target/riscv: Remove NB_MMU_MODES define 2023-03-13 06:44:37 -07:00
cpu-qom.h target/riscv: add 'max' CPU type 2023-10-12 11:39:33 +10:00
cpu.c target/riscv: add zihpm extension flag for TCG 2023-11-07 11:06:02 +10:00
cpu.h target/riscv: add riscv_cpu_accelerator_compatible() 2023-11-07 11:06:02 +10:00
crypto_helper.c target/riscv: Use accelerated helper for AES64KS1I 2023-09-11 11:45:55 +10:00
csr.c target/riscv: add zicntr extension flag for TCG 2023-11-07 11:06:02 +10:00
debug.c target/riscv: Allocate itrigger timers only once 2023-09-11 11:45:55 +10:00
debug.h target/riscv: Allocate itrigger timers only once 2023-09-11 11:45:55 +10:00
fpu_helper.c riscv: Add support for the Zfa extension 2023-07-10 22:29:20 +10:00
gdbstub.c target/riscv: rename ext_icsr to ext_zicsr 2023-11-07 11:02:17 +10:00
helper.h target/riscv: Add Zvksed ISA extension support 2023-09-11 11:45:55 +10:00
insn16.decode target/riscv: add support for Zcmt extension 2023-05-05 10:49:50 +10:00
insn32.decode target/riscv: Add Zvksed ISA extension support 2023-09-11 11:45:55 +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: Introduce mmuidx_2stage 2023-05-05 10:49:50 +10:00
Kconfig meson: Introduce target-specific Kconfig 2021-07-09 18:21:34 +02:00
m128_helper.c target/helpers: Remove unnecessary 'qemu/main-loop.h' header 2023-08-31 19:47:43 +02:00
machine.c target/riscv: Add HS-mode virtual interrupt and IRQ filtering support. 2023-11-07 11:02:17 +10:00
meson.build target/riscv: move KVM only files to kvm subdir 2023-10-12 12:20:24 +10:00
monitor.c riscv: spelling fixes 2023-09-08 13:08:52 +03:00
op_helper.c target/helpers: Remove unnecessary 'qemu/main-loop.h' header 2023-08-31 19:47:43 +02:00
pmp.c target/riscv: pmp: Ignore writes when RW=01 2023-11-07 11:06:02 +10:00
pmp.h target/riscv: pmp: Clear pmp/smepmp bits on reset 2023-11-07 11:06:02 +10:00
pmu.c target/riscv/pmu: Restrict 'qemu/log.h' include to source 2023-08-31 19:47:43 +02:00
pmu.h target/helpers: Remove unnecessary 'qemu/main-loop.h' header 2023-08-31 19:47:43 +02:00
riscv-qmp-cmds.c target/riscv/riscv-qmp-cmds.c: check CPU accel in query-cpu-model-expansion 2023-11-07 11:06:02 +10:00
sbi_ecall_interface.h target/riscv: Fix format for comments 2023-05-05 10:49:50 +10:00
time_helper.c target/riscv: Simplify type conversion for CPURISCVState 2023-05-05 10:49:49 +10:00
time_helper.h target/riscv: Simplify type conversion for CPURISCVState 2023-05-05 10:49:49 +10:00
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 accel/tcg: Replace CPUState.env_ptr with cpu_env() 2023-10-04 11:03:54 -07:00
vcrypto_helper.c target/riscv: Add Zvksed ISA extension support 2023-09-11 11:45:55 +10:00
vector_helper.c target/riscv: Fix vfwmaccbf16.vf 2023-10-12 12:50:13 +10:00
vector_internals.c target/riscv: Refactor some of the generic vector functionality 2023-09-11 11:45:54 +10:00
vector_internals.h target/riscv: Refactor some of the generic vector functionality 2023-09-11 11:45:55 +10:00
xthead.decode RISC-V: Adding XTheadFmv ISA extension 2023-02-07 08:19:23 +10:00
XVentanaCondOps.decode target/riscv: Add XVentanaCondOps custom extension 2022-02-16 12:24:18 +10:00
zce_helper.c target/riscv: add support for Zcmt extension 2023-05-05 10:49:50 +10:00