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[kvm-unit-tests,v3,5/7] s390x: lib: add PGM_TEID_* macros

Message ID 20210407124209.828540-6-imbrenda@linux.ibm.com (mailing list archive)
State New
Headers show
Series s390: Add support for large pages | expand

Commit Message

Claudio Imbrenda April 7, 2021, 12:42 p.m. UTC
Add PGM_TEID_* macros, to select TEID fields from various types of
translation and protection exceptions.

Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
---
 lib/s390x/asm/interrupt.h | 6 ++++++
 1 file changed, 6 insertions(+)

Comments

Janosch Frank April 12, 2021, 1:49 p.m. UTC | #1
On 4/7/21 2:42 PM, Claudio Imbrenda wrote:
> Add PGM_TEID_* macros, to select TEID fields from various types of
> translation and protection exceptions.
> 
> Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
> ---
>  lib/s390x/asm/interrupt.h | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/lib/s390x/asm/interrupt.h b/lib/s390x/asm/interrupt.h
> index bf0eb40d..d32aacb2 100644
> --- a/lib/s390x/asm/interrupt.h
> +++ b/lib/s390x/asm/interrupt.h
> @@ -13,6 +13,12 @@
>  #define EXT_IRQ_EXTERNAL_CALL	0x1202
>  #define EXT_IRQ_SERVICE_SIG	0x2401
>  
> +#define PGM_TEID_ADDR		PAGE_MASK
> +#define PGM_TEID_AI		0x003

ASCEID

> +#define PGM_TEID_M		0x004

MVPGI? or MVPGIND

> +#define PGM_TEID_A		0x008

ACCESL?

> +#define PGM_TEID_FS		0xc00

You don't use that one, right?
And even if you did you'd need one for store and fetch each for it to be
useful.


TLDR: Those abbreviations are too short

> +
>  void register_pgm_cleanup_func(void (*f)(void));
>  void handle_pgm_int(struct stack_frame_int *stack);
>  void handle_ext_int(struct stack_frame_int *stack);
>
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Patch

diff --git a/lib/s390x/asm/interrupt.h b/lib/s390x/asm/interrupt.h
index bf0eb40d..d32aacb2 100644
--- a/lib/s390x/asm/interrupt.h
+++ b/lib/s390x/asm/interrupt.h
@@ -13,6 +13,12 @@ 
 #define EXT_IRQ_EXTERNAL_CALL	0x1202
 #define EXT_IRQ_SERVICE_SIG	0x2401
 
+#define PGM_TEID_ADDR		PAGE_MASK
+#define PGM_TEID_AI		0x003
+#define PGM_TEID_M		0x004
+#define PGM_TEID_A		0x008
+#define PGM_TEID_FS		0xc00
+
 void register_pgm_cleanup_func(void (*f)(void));
 void handle_pgm_int(struct stack_frame_int *stack);
 void handle_ext_int(struct stack_frame_int *stack);