From: Alistair Francis <alistair23@gmail.com>
To: Richard Henderson <richard.henderson@linaro.org>
Cc: qemu-devel@nongnu.org, qemu-riscv@nongnu.org,
alistair.francis@wdc.com, palmer@dabbelt.com,
zhiwei_liu@linux.alibaba.com, fei2.wu@intel.com
Subject: Re: [PATCH v6 11/25] target/riscv: Rename MMU_HYP_ACCESS_BIT to MMU_2STAGE_BIT
Date: Tue, 11 Apr 2023 13:36:51 +1000 [thread overview]
Message-ID: <CAKmqyKP458eNvGF_t3Lge5PoDSZ4rOrGzN6WP+zbzM1CVAcy9Q@mail.gmail.com> (raw)
In-Reply-To: <20230325105429.1142530-12-richard.henderson@linaro.org>
On Sat, Mar 25, 2023 at 9:57 PM Richard Henderson
<richard.henderson@linaro.org> wrote:
>
> We will enable more uses of this bit in the future.
>
> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Alistair
> ---
> target/riscv/internals.h | 6 ++++--
> target/riscv/cpu_helper.c | 2 +-
> target/riscv/op_helper.c | 2 +-
> 3 files changed, 6 insertions(+), 4 deletions(-)
>
> diff --git a/target/riscv/internals.h b/target/riscv/internals.h
> index b55152a7dc..7b63c0f1b6 100644
> --- a/target/riscv/internals.h
> +++ b/target/riscv/internals.h
> @@ -27,13 +27,15 @@
> * - S 0b001
> * - S+SUM 0b010
> * - M 0b011
> - * - HLV/HLVX/HSV adds 0b100
> + * - U+2STAGE 0b100
> + * - S+2STAGE 0b101
> + * - S+SUM+2STAGE 0b110
> */
> #define MMUIdx_U 0
> #define MMUIdx_S 1
> #define MMUIdx_S_SUM 2
> #define MMUIdx_M 3
> -#define MMU_HYP_ACCESS_BIT (1 << 2)
> +#define MMU_2STAGE_BIT (1 << 2)
>
> /* share data between vector helpers and decode code */
> FIELD(VDATA, VM, 0, 1)
> diff --git a/target/riscv/cpu_helper.c b/target/riscv/cpu_helper.c
> index 9bb84be4e1..888f7ae0ef 100644
> --- a/target/riscv/cpu_helper.c
> +++ b/target/riscv/cpu_helper.c
> @@ -605,7 +605,7 @@ void riscv_cpu_set_virt_enabled(CPURISCVState *env, bool enable)
>
> bool riscv_cpu_two_stage_lookup(int mmu_idx)
> {
> - return mmu_idx & MMU_HYP_ACCESS_BIT;
> + return mmu_idx & MMU_2STAGE_BIT;
> }
>
> int riscv_cpu_claim_interrupts(RISCVCPU *cpu, uint64_t interrupts)
> diff --git a/target/riscv/op_helper.c b/target/riscv/op_helper.c
> index 0f81645adf..81362537b6 100644
> --- a/target/riscv/op_helper.c
> +++ b/target/riscv/op_helper.c
> @@ -437,7 +437,7 @@ static int check_access_hlsv(CPURISCVState *env, bool x, uintptr_t ra)
> riscv_raise_exception(env, RISCV_EXCP_ILLEGAL_INST, ra);
> }
>
> - return cpu_mmu_index(env, x) | MMU_HYP_ACCESS_BIT;
> + return cpu_mmu_index(env, x) | MMU_2STAGE_BIT;
> }
>
> target_ulong helper_hyp_hlv_bu(CPURISCVState *env, target_ulong addr)
> --
> 2.34.1
>
>
next prev parent reply other threads:[~2023-04-11 3:37 UTC|newest]
Thread overview: 70+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-25 10:54 [PATCH v6 00/25] target/riscv: MSTATUS_SUM + cleanups Richard Henderson
2023-03-25 10:54 ` [PATCH v6 01/25] target/riscv: Extract virt enabled state from tb flags Richard Henderson
2023-04-06 2:35 ` Alistair Francis
2023-03-25 10:54 ` [PATCH v6 02/25] target/riscv: Add a general status enum for extensions Richard Henderson
2023-03-26 12:54 ` liweiwei
2023-04-11 2:05 ` Alistair Francis
2023-03-25 10:54 ` [PATCH v6 03/25] target/riscv: Encode the FS and VS on a normal way for tb flags Richard Henderson
2023-04-11 1:59 ` Alistair Francis
2023-03-25 10:54 ` [PATCH v6 04/25] target/riscv: Remove mstatus_hs_{fs, vs} from tb_flags Richard Henderson
2023-03-27 1:34 ` liweiwei
2023-03-27 16:22 ` Richard Henderson
2023-03-28 2:34 ` [PATCH v6 04/25] target/riscv: Remove mstatus_hs_{fs,vs} " LIU Zhiwei
2023-04-11 2:02 ` [PATCH v6 04/25] target/riscv: Remove mstatus_hs_{fs, vs} " Alistair Francis
2023-03-25 10:54 ` [PATCH v6 05/25] target/riscv: Add a tb flags field for vstart Richard Henderson
2023-04-11 2:07 ` Alistair Francis
2023-03-25 10:54 ` [PATCH v6 06/25] target/riscv: Separate priv from mmu_idx Richard Henderson
2023-03-28 2:39 ` LIU Zhiwei
2023-04-11 2:08 ` Alistair Francis
2023-03-25 10:54 ` [PATCH v6 07/25] target/riscv: Reduce overhead of MSTATUS_SUM change Richard Henderson
2023-03-28 2:41 ` LIU Zhiwei
2023-04-11 2:11 ` Alistair Francis
2023-03-25 10:54 ` [PATCH v6 08/25] accel/tcg: Add cpu_ld*_code_mmu Richard Henderson
2023-04-11 3:10 ` Alistair Francis
2023-03-25 10:54 ` [PATCH v6 09/25] target/riscv: Use cpu_ld*_code_mmu for HLVX Richard Henderson
2023-04-11 3:12 ` Alistair Francis
2023-03-25 10:54 ` [PATCH v6 10/25] target/riscv: Handle HLV, HSV via helpers Richard Henderson
2023-04-11 3:34 ` Alistair Francis
2023-03-25 10:54 ` [PATCH v6 11/25] target/riscv: Rename MMU_HYP_ACCESS_BIT to MMU_2STAGE_BIT Richard Henderson
2023-04-11 3:36 ` Alistair Francis [this message]
2023-03-25 10:54 ` [PATCH v6 12/25] target/riscv: Introduce mmuidx_sum Richard Henderson
2023-04-11 3:39 ` Alistair Francis
2023-03-25 10:54 ` [PATCH v6 13/25] target/riscv: Introduce mmuidx_priv Richard Henderson
2023-03-27 2:07 ` LIU Zhiwei
2023-03-27 16:29 ` Richard Henderson
2023-03-28 1:33 ` LIU Zhiwei
2023-03-28 1:54 ` LIU Zhiwei
2023-03-28 14:27 ` Richard Henderson
2023-04-11 3:53 ` Alistair Francis
2023-03-25 10:54 ` [PATCH v6 14/25] target/riscv: Introduce mmuidx_2stage Richard Henderson
2023-04-11 3:55 ` Alistair Francis
2023-03-25 10:54 ` [PATCH v6 15/25] target/riscv: Move hstatus.spvp check to check_access_hlsv Richard Henderson
2023-04-11 3:56 ` Alistair Francis
2023-03-25 10:54 ` [PATCH v6 16/25] target/riscv: Set MMU_2STAGE_BIT in riscv_cpu_mmu_index Richard Henderson
2023-04-11 4:02 ` Alistair Francis
2023-03-25 10:54 ` [PATCH v6 17/25] target/riscv: Check SUM in the correct register Richard Henderson
2023-04-11 4:25 ` Alistair Francis
2023-03-25 10:54 ` [PATCH v6 18/25] target/riscv: Hoist second stage mode change to callers Richard Henderson
2023-04-11 4:25 ` Alistair Francis
2023-03-25 10:54 ` [PATCH v6 19/25] target/riscv: Hoist pbmte and hade out of the level loop Richard Henderson
2023-04-11 4:26 ` Alistair Francis
2023-03-25 10:54 ` [PATCH v6 20/25] target/riscv: Move leaf pte processing out of " Richard Henderson
2023-04-11 4:30 ` Alistair Francis
2023-03-25 10:54 ` [PATCH v6 21/25] target/riscv: Suppress pte update with is_debug Richard Henderson
2023-04-11 4:30 ` Alistair Francis
2023-03-25 10:54 ` [PATCH v6 22/25] target/riscv: Don't modify SUM " Richard Henderson
2023-04-11 4:31 ` Alistair Francis
2023-03-25 10:54 ` [PATCH v6 23/25] target/riscv: Merge checks for reserved pte flags Richard Henderson
2023-04-11 4:32 ` Alistair Francis
2023-03-25 10:54 ` [PATCH v6 24/25] target/riscv: Reorg access check in get_physical_address Richard Henderson
2023-04-11 4:55 ` Alistair Francis
2023-03-25 10:54 ` [PATCH v6 25/25] target/riscv: Reorg sum " Richard Henderson
2023-04-11 5:36 ` Alistair Francis
2023-03-26 5:17 ` [PATCH v6 00/25] target/riscv: MSTATUS_SUM + cleanups Richard Henderson
2023-03-26 14:18 ` liweiwei
2023-03-27 16:43 ` Daniel Henrique Barboza
2023-03-28 1:22 ` Wu, Fei
2023-04-04 6:42 ` Wu, Fei
2023-04-04 7:11 ` LIU Zhiwei
2023-04-04 7:23 ` Wu, Fei
2023-04-11 5:38 ` Alistair Francis
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