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* [PATCH 0/2] target/riscv: Fixes for Ibex and OpenTitan
@ 2022-06-29 23:31 Alistair Francis
  2022-06-29 23:31 ` [PATCH 1/2] target/riscv: Fixup MSECCFG minimum priv check Alistair Francis
  2022-06-29 23:31 ` [PATCH 2/2] target/riscv: Ibex: Support priv version 1.11 Alistair Francis
  0 siblings, 2 replies; 6+ messages in thread
From: Alistair Francis @ 2022-06-29 23:31 UTC (permalink / raw)
  To: qemu-riscv, qemu-devel
  Cc: Alistair Francis, Palmer Dabbelt, Bin Meng, alistair23, bmeng.cn

From: Alistair Francis <alistair.francis@wdc.com>

This fixes some issues discovered on the Ibex SoC when running OpenTitan tests.

Alistair Francis (2):
  target/riscv: Fixup MSECCFG minimum priv check
  target/riscv: Ibex: Support priv version 1.11

 target/riscv/cpu.c | 2 +-
 target/riscv/csr.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

-- 
2.36.1



^ permalink raw reply	[flat|nested] 6+ messages in thread

* [PATCH 1/2] target/riscv: Fixup MSECCFG minimum priv check
  2022-06-29 23:31 [PATCH 0/2] target/riscv: Fixes for Ibex and OpenTitan Alistair Francis
@ 2022-06-29 23:31 ` Alistair Francis
  2022-07-01 12:32   ` Bin Meng
  2022-06-29 23:31 ` [PATCH 2/2] target/riscv: Ibex: Support priv version 1.11 Alistair Francis
  1 sibling, 1 reply; 6+ messages in thread
From: Alistair Francis @ 2022-06-29 23:31 UTC (permalink / raw)
  To: qemu-riscv, qemu-devel
  Cc: Alistair Francis, Palmer Dabbelt, Bin Meng, alistair23, bmeng.cn

From: Alistair Francis <alistair.francis@wdc.com>

There is nothing in the RISC-V spec that mandates version 1.12 is
required for ePMP and there is currently hardware [1] that implements
ePMP (a draft version though) with the 1.11 priv spec.

1: https://ibex-core.readthedocs.io/en/latest/01_overview/compliance.html

Fixes: a4b2fa433125af0305b0695d7f8dda61db3364b0 target/riscv: Introduce privilege version field in the CSR ops.
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
---
 target/riscv/csr.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/target/riscv/csr.c b/target/riscv/csr.c
index 6dbe9b541f..6379bef5a5 100644
--- a/target/riscv/csr.c
+++ b/target/riscv/csr.c
@@ -3561,7 +3561,7 @@ riscv_csr_operations csr_ops[CSR_TABLE_SIZE] = {
 
     /* Physical Memory Protection */
     [CSR_MSECCFG]    = { "mseccfg",  epmp, read_mseccfg, write_mseccfg,
-                                     .min_priv_ver = PRIV_VERSION_1_12_0 },
+                                     .min_priv_ver = PRIV_VERSION_1_11_0 },
     [CSR_PMPCFG0]    = { "pmpcfg0",   pmp, read_pmpcfg,  write_pmpcfg  },
     [CSR_PMPCFG1]    = { "pmpcfg1",   pmp, read_pmpcfg,  write_pmpcfg  },
     [CSR_PMPCFG2]    = { "pmpcfg2",   pmp, read_pmpcfg,  write_pmpcfg  },
-- 
2.36.1



^ permalink raw reply related	[flat|nested] 6+ messages in thread

* [PATCH 2/2] target/riscv: Ibex: Support priv version 1.11
  2022-06-29 23:31 [PATCH 0/2] target/riscv: Fixes for Ibex and OpenTitan Alistair Francis
  2022-06-29 23:31 ` [PATCH 1/2] target/riscv: Fixup MSECCFG minimum priv check Alistair Francis
@ 2022-06-29 23:31 ` Alistair Francis
  2022-07-01 12:32   ` Bin Meng
  1 sibling, 1 reply; 6+ messages in thread
From: Alistair Francis @ 2022-06-29 23:31 UTC (permalink / raw)
  To: qemu-riscv, qemu-devel
  Cc: Alistair Francis, Palmer Dabbelt, Bin Meng, alistair23, bmeng.cn

From: Alistair Francis <alistair.francis@wdc.com>

The Ibex CPU supports version 1.11 of the priv spec [1], so let's
correct that in QEMU as well.

1: https://ibex-core.readthedocs.io/en/latest/01_overview/compliance.html

Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
---
 target/riscv/cpu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c
index 05e6521351..178b4de51f 100644
--- a/target/riscv/cpu.c
+++ b/target/riscv/cpu.c
@@ -237,7 +237,7 @@ static void rv32_ibex_cpu_init(Object *obj)
     RISCVCPU *cpu = RISCV_CPU(obj);
 
     set_misa(env, MXL_RV32, RVI | RVM | RVC | RVU);
-    set_priv_version(env, PRIV_VERSION_1_10_0);
+    set_priv_version(env, PRIV_VERSION_1_11_0);
     cpu->cfg.mmu = false;
     cpu->cfg.epmp = true;
 }
-- 
2.36.1



^ permalink raw reply related	[flat|nested] 6+ messages in thread

* Re: [PATCH 1/2] target/riscv: Fixup MSECCFG minimum priv check
  2022-06-29 23:31 ` [PATCH 1/2] target/riscv: Fixup MSECCFG minimum priv check Alistair Francis
@ 2022-07-01 12:32   ` Bin Meng
  2022-07-02  6:53     ` Alistair Francis
  0 siblings, 1 reply; 6+ messages in thread
From: Bin Meng @ 2022-07-01 12:32 UTC (permalink / raw)
  To: Alistair Francis
  Cc: open list:RISC-V, qemu-devel@nongnu.org Developers,
	Alistair Francis, Palmer Dabbelt, Bin Meng, Alistair Francis

On Thu, Jun 30, 2022 at 7:31 AM Alistair Francis
<alistair.francis@opensource.wdc.com> wrote:
>
> From: Alistair Francis <alistair.francis@wdc.com>
>
> There is nothing in the RISC-V spec that mandates version 1.12 is
> required for ePMP and there is currently hardware [1] that implements
> ePMP (a draft version though) with the 1.11 priv spec.
>
> 1: https://ibex-core.readthedocs.io/en/latest/01_overview/compliance.html
>
> Fixes: a4b2fa433125af0305b0695d7f8dda61db3364b0 target/riscv: Introduce privilege version field in the CSR ops.

The format is

Fixes: 12 digits commit id ("commit title")

> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
> ---
>  target/riscv/csr.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/target/riscv/csr.c b/target/riscv/csr.c
> index 6dbe9b541f..6379bef5a5 100644
> --- a/target/riscv/csr.c
> +++ b/target/riscv/csr.c
> @@ -3561,7 +3561,7 @@ riscv_csr_operations csr_ops[CSR_TABLE_SIZE] = {
>
>      /* Physical Memory Protection */
>      [CSR_MSECCFG]    = { "mseccfg",  epmp, read_mseccfg, write_mseccfg,
> -                                     .min_priv_ver = PRIV_VERSION_1_12_0 },
> +                                     .min_priv_ver = PRIV_VERSION_1_11_0 },
>      [CSR_PMPCFG0]    = { "pmpcfg0",   pmp, read_pmpcfg,  write_pmpcfg  },
>      [CSR_PMPCFG1]    = { "pmpcfg1",   pmp, read_pmpcfg,  write_pmpcfg  },
>      [CSR_PMPCFG2]    = { "pmpcfg2",   pmp, read_pmpcfg,  write_pmpcfg  },
> --
>

Other than that,
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>


^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: [PATCH 2/2] target/riscv: Ibex: Support priv version 1.11
  2022-06-29 23:31 ` [PATCH 2/2] target/riscv: Ibex: Support priv version 1.11 Alistair Francis
@ 2022-07-01 12:32   ` Bin Meng
  0 siblings, 0 replies; 6+ messages in thread
From: Bin Meng @ 2022-07-01 12:32 UTC (permalink / raw)
  To: Alistair Francis
  Cc: open list:RISC-V, qemu-devel@nongnu.org Developers,
	Alistair Francis, Palmer Dabbelt, Bin Meng, Alistair Francis

On Thu, Jun 30, 2022 at 7:31 AM Alistair Francis
<alistair.francis@opensource.wdc.com> wrote:
>
> From: Alistair Francis <alistair.francis@wdc.com>
>
> The Ibex CPU supports version 1.11 of the priv spec [1], so let's
> correct that in QEMU as well.
>
> 1: https://ibex-core.readthedocs.io/en/latest/01_overview/compliance.html
>
> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
> ---
>  target/riscv/cpu.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>

Reviewed-by: Bin Meng <bmeng.cn@gmail.com>


^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: [PATCH 1/2] target/riscv: Fixup MSECCFG minimum priv check
  2022-07-01 12:32   ` Bin Meng
@ 2022-07-02  6:53     ` Alistair Francis
  0 siblings, 0 replies; 6+ messages in thread
From: Alistair Francis @ 2022-07-02  6:53 UTC (permalink / raw)
  To: Bin Meng
  Cc: Alistair Francis, open list:RISC-V,
	qemu-devel@nongnu.org Developers, Alistair Francis,
	Palmer Dabbelt, Bin Meng

On Fri, Jul 1, 2022 at 10:32 PM Bin Meng <bmeng.cn@gmail.com> wrote:
>
> On Thu, Jun 30, 2022 at 7:31 AM Alistair Francis
> <alistair.francis@opensource.wdc.com> wrote:
> >
> > From: Alistair Francis <alistair.francis@wdc.com>
> >
> > There is nothing in the RISC-V spec that mandates version 1.12 is
> > required for ePMP and there is currently hardware [1] that implements
> > ePMP (a draft version though) with the 1.11 priv spec.
> >
> > 1: https://ibex-core.readthedocs.io/en/latest/01_overview/compliance.html
> >
> > Fixes: a4b2fa433125af0305b0695d7f8dda61db3364b0 target/riscv: Introduce privilege version field in the CSR ops.
>
> The format is
>
> Fixes: 12 digits commit id ("commit title")

Thanks! I meant to come back and fix this up but then forgot

Applied to riscv-to-apply.next

Alistair

>
> > Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
> > ---
> >  target/riscv/csr.c | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/target/riscv/csr.c b/target/riscv/csr.c
> > index 6dbe9b541f..6379bef5a5 100644
> > --- a/target/riscv/csr.c
> > +++ b/target/riscv/csr.c
> > @@ -3561,7 +3561,7 @@ riscv_csr_operations csr_ops[CSR_TABLE_SIZE] = {
> >
> >      /* Physical Memory Protection */
> >      [CSR_MSECCFG]    = { "mseccfg",  epmp, read_mseccfg, write_mseccfg,
> > -                                     .min_priv_ver = PRIV_VERSION_1_12_0 },
> > +                                     .min_priv_ver = PRIV_VERSION_1_11_0 },
> >      [CSR_PMPCFG0]    = { "pmpcfg0",   pmp, read_pmpcfg,  write_pmpcfg  },
> >      [CSR_PMPCFG1]    = { "pmpcfg1",   pmp, read_pmpcfg,  write_pmpcfg  },
> >      [CSR_PMPCFG2]    = { "pmpcfg2",   pmp, read_pmpcfg,  write_pmpcfg  },
> > --
> >
>
> Other than that,
> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>


^ permalink raw reply	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2022-07-02  6:56 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2022-06-29 23:31 [PATCH 0/2] target/riscv: Fixes for Ibex and OpenTitan Alistair Francis
2022-06-29 23:31 ` [PATCH 1/2] target/riscv: Fixup MSECCFG minimum priv check Alistair Francis
2022-07-01 12:32   ` Bin Meng
2022-07-02  6:53     ` Alistair Francis
2022-06-29 23:31 ` [PATCH 2/2] target/riscv: Ibex: Support priv version 1.11 Alistair Francis
2022-07-01 12:32   ` Bin Meng

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