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| author | Heiko Carstens <hca@linux.ibm.com> | 2024-02-05 21:32:12 +0100 |
|---|---|---|
| committer | Heiko Carstens <hca@linux.ibm.com> | 2024-02-12 15:03:33 +0100 |
| commit | 304103736ba75be70991cd6336c28121d7bf14f5 (patch) | |
| tree | 192db4127392ab2e40aa669f7cc1717e6d40e449 /arch/s390/kvm | |
| parent | f78bcb2e26dcac39a637e14c0ede9499822cb872 (diff) | |
| download | linux-304103736ba75be70991cd6336c28121d7bf14f5.tar.gz linux-304103736ba75be70991cd6336c28121d7bf14f5.tar.bz2 linux-304103736ba75be70991cd6336c28121d7bf14f5.zip | |
s390/acrs: cleanup access register handling
save_access_regs() and restore_access_regs() are only available by
including switch_to.h. This is done by a couple of C files, which have
nothing to do with switch_to(), but only need these functions.
Move both functions to a new header file and improve the implementation:
- Get rid of typedef
- Add memory access instrumentation support
- Use long displacement instructions lamy/stamy instead of lam/stam - all
current users end up with better code because of this
Reviewed-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Diffstat (limited to 'arch/s390/kvm')
| -rw-r--r-- | arch/s390/kvm/gaccess.c | 2 | ||||
| -rw-r--r-- | arch/s390/kvm/interrupt.c | 2 | ||||
| -rw-r--r-- | arch/s390/kvm/kvm-s390.c | 2 |
3 files changed, 3 insertions, 3 deletions
diff --git a/arch/s390/kvm/gaccess.c b/arch/s390/kvm/gaccess.c index 5bfcc50c1a68..d264aa81aa15 100644 --- a/arch/s390/kvm/gaccess.c +++ b/arch/s390/kvm/gaccess.c @@ -11,11 +11,11 @@ #include <linux/err.h> #include <linux/pgtable.h> #include <linux/bitfield.h> +#include <asm/access-regs.h> #include <asm/fault.h> #include <asm/gmap.h> #include "kvm-s390.h" #include "gaccess.h" -#include <asm/switch_to.h> union asce { unsigned long val; diff --git a/arch/s390/kvm/interrupt.c b/arch/s390/kvm/interrupt.c index fc4007cc067a..6e435bf0c27e 100644 --- a/arch/s390/kvm/interrupt.c +++ b/arch/s390/kvm/interrupt.c @@ -19,13 +19,13 @@ #include <linux/slab.h> #include <linux/bitmap.h> #include <linux/vmalloc.h> +#include <asm/access-regs.h> #include <asm/asm-offsets.h> #include <asm/dis.h> #include <linux/uaccess.h> #include <asm/sclp.h> #include <asm/isc.h> #include <asm/gmap.h> -#include <asm/switch_to.h> #include <asm/nmi.h> #include <asm/airq.h> #include <asm/tpi.h> diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index ea63ac769889..6eab70b19abf 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -33,12 +33,12 @@ #include <linux/pgtable.h> #include <linux/mmu_notifier.h> +#include <asm/access-regs.h> #include <asm/asm-offsets.h> #include <asm/lowcore.h> #include <asm/stp.h> #include <asm/gmap.h> #include <asm/nmi.h> -#include <asm/switch_to.h> #include <asm/isc.h> #include <asm/sclp.h> #include <asm/cpacf.h> |