diff mbox series

[v4,04/17] target/ppc: Do not call hreg_compute_mem_idx after ppc_store_msr

Message ID 20210315184615.1985590-5-richard.henderson@linaro.org
State Superseded
Headers show
Series target/ppc: Fix truncation of env->hflags | expand

Commit Message

Richard Henderson March 15, 2021, 6:46 p.m. UTC
In ppc_store_msr we call hreg_compute_hflags, which itself
calls hreg_compute_mem_idx.  Rely on ppc_store_msr to update
everything required by the msr update.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

---
 target/ppc/machine.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

-- 
2.25.1

Comments

Cédric Le Goater March 16, 2021, 8:16 a.m. UTC | #1
On 3/15/21 7:46 PM, Richard Henderson wrote:
> In ppc_store_msr we call hreg_compute_hflags, which itself

> calls hreg_compute_mem_idx.  Rely on ppc_store_msr to update

> everything required by the msr update.

>

> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>


Reviewed-by: Cédric Le Goater <clg@kaod.org>


Thanks,

C.

> ---

>  target/ppc/machine.c | 7 +------

>  1 file changed, 1 insertion(+), 6 deletions(-)

> 

> diff --git a/target/ppc/machine.c b/target/ppc/machine.c

> index 87d7bffb86..f6eeda9642 100644

> --- a/target/ppc/machine.c

> +++ b/target/ppc/machine.c

> @@ -125,9 +125,6 @@ static int cpu_load_old(QEMUFile *f, void *opaque, int version_id)

>      env->msr ^= env->msr_mask & ~((1ULL << MSR_TGPR) | MSR_HVB);

>      ppc_store_msr(env, msr);

>  

> -    /* Recompute mmu indices */

> -    hreg_compute_mem_idx(env);

> -

>      return 0;

>  }

>  

> @@ -418,14 +415,12 @@ static int cpu_post_load(void *opaque, int version_id)

>  

>      /*

>       * Invalidate all supported msr bits except MSR_TGPR/MSR_HVB

> -     * before restoring

> +     * before restoring.  Note that this recomputes hflags and mem_idx.

>       */

>      msr = env->msr;

>      env->msr ^= env->msr_mask & ~((1ULL << MSR_TGPR) | MSR_HVB);

>      ppc_store_msr(env, msr);

>  

> -    hreg_compute_mem_idx(env);

> -

>      return 0;

>  }

>  

>
David Gibson March 22, 2021, 3:39 a.m. UTC | #2
On Mon, Mar 15, 2021 at 12:46:02PM -0600, Richard Henderson wrote:
> In ppc_store_msr we call hreg_compute_hflags, which itself

> calls hreg_compute_mem_idx.  Rely on ppc_store_msr to update

> everything required by the msr update.

> 

> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>


Applied to ppc-for-6.0.

> ---

>  target/ppc/machine.c | 7 +------

>  1 file changed, 1 insertion(+), 6 deletions(-)

> 

> diff --git a/target/ppc/machine.c b/target/ppc/machine.c

> index 87d7bffb86..f6eeda9642 100644

> --- a/target/ppc/machine.c

> +++ b/target/ppc/machine.c

> @@ -125,9 +125,6 @@ static int cpu_load_old(QEMUFile *f, void *opaque, int version_id)

>      env->msr ^= env->msr_mask & ~((1ULL << MSR_TGPR) | MSR_HVB);

>      ppc_store_msr(env, msr);

>  

> -    /* Recompute mmu indices */

> -    hreg_compute_mem_idx(env);

> -

>      return 0;

>  }

>  

> @@ -418,14 +415,12 @@ static int cpu_post_load(void *opaque, int version_id)

>  

>      /*

>       * Invalidate all supported msr bits except MSR_TGPR/MSR_HVB

> -     * before restoring

> +     * before restoring.  Note that this recomputes hflags and mem_idx.

>       */

>      msr = env->msr;

>      env->msr ^= env->msr_mask & ~((1ULL << MSR_TGPR) | MSR_HVB);

>      ppc_store_msr(env, msr);

>  

> -    hreg_compute_mem_idx(env);

> -

>      return 0;

>  }

>  


-- 
David Gibson			| I'll have my music baroque, and my code
david AT gibson.dropbear.id.au	| minimalist, thank you.  NOT _the_ _other_
				| _way_ _around_!
http://www.ozlabs.org/~dgibson
diff mbox series

Patch

diff --git a/target/ppc/machine.c b/target/ppc/machine.c
index 87d7bffb86..f6eeda9642 100644
--- a/target/ppc/machine.c
+++ b/target/ppc/machine.c
@@ -125,9 +125,6 @@  static int cpu_load_old(QEMUFile *f, void *opaque, int version_id)
     env->msr ^= env->msr_mask & ~((1ULL << MSR_TGPR) | MSR_HVB);
     ppc_store_msr(env, msr);
 
-    /* Recompute mmu indices */
-    hreg_compute_mem_idx(env);
-
     return 0;
 }
 
@@ -418,14 +415,12 @@  static int cpu_post_load(void *opaque, int version_id)
 
     /*
      * Invalidate all supported msr bits except MSR_TGPR/MSR_HVB
-     * before restoring
+     * before restoring.  Note that this recomputes hflags and mem_idx.
      */
     msr = env->msr;
     env->msr ^= env->msr_mask & ~((1ULL << MSR_TGPR) | MSR_HVB);
     ppc_store_msr(env, msr);
 
-    hreg_compute_mem_idx(env);
-
     return 0;
 }