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| author | Ian Campbell <ian.campbell@citrix.com> | 2013-02-22 08:57:51 +0000 |
|---|---|---|
| committer | Ian Campbell <ian.campbell@citrix.com> | 2013-02-22 12:14:52 +0000 |
| commit | fac508273d32e37b40622bd2e874b420541fb7fa (patch) | |
| tree | 8c703519402427ec4425fcf55218cfb0fa2d2d1c /xen/include/asm-arm/arm32 | |
| parent | 1024642c62062dd8e12037ffaab2ed9754d74b35 (diff) | |
| download | xen-fac508273d32e37b40622bd2e874b420541fb7fa.tar.gz xen-fac508273d32e37b40622bd2e874b420541fb7fa.tar.bz2 xen-fac508273d32e37b40622bd2e874b420541fb7fa.zip | |
xen: arm64: dcache flush
Use "dsb sy" instead of bare "dsb", they mean the same on 32-bit but only the
former is valid on 64-bit.
Abstract the actual flush operation into a macro.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Tim Deegan <tim@xen.org>
Diffstat (limited to 'xen/include/asm-arm/arm32')
| -rw-r--r-- | xen/include/asm-arm/arm32/page.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/xen/include/asm-arm/arm32/page.h b/xen/include/asm-arm/arm32/page.h index a384f04ac1..2b15c2229d 100644 --- a/xen/include/asm-arm/arm32/page.h +++ b/xen/include/asm-arm/arm32/page.h @@ -23,6 +23,9 @@ static inline void write_pte(lpae_t *p, lpae_t pte) : : "r" (pte.bits), "r" (p) : "memory"); } +/* Inline ASM to flush dcache on register R (may be an inline asm operand) */ +#define __flush_xen_dcache_one(R) STORE_CP32(R, DCCMVAC) + /* * Flush all hypervisor mappings from the TLB and branch predictor. * This is needed after changing Xen code mappings. |