[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH v3 2/2] xen: arm: Be explicit about bit values in mfn_to_xen_entry()
Ensure that every relevant bit is given an explicit value. This has no effect on the generated code, but makes it a little easier to follow. Reported-by: Julien Grall <julien.grall@xxxxxxxxxx> Signed-off-by: Chris Brand <chris.brand@xxxxxxxxxxxx> --- v3 trims down the list of bits given explicit values v2 adds comments on pxn and avail xen/include/asm-arm/page.h | 3 +++ 1 file changed, 3 insertions(+) diff --git a/xen/include/asm-arm/page.h b/xen/include/asm-arm/page.h index 01628f3e96cb..a94e978a9995 100644 --- a/xen/include/asm-arm/page.h +++ b/xen/include/asm-arm/page.h @@ -202,9 +202,12 @@ static inline lpae_t mfn_to_xen_entry(unsigned long mfn, unsigned attr) .ai = attr, .ns = 1, /* Hyp mode is in the non-secure world */ .user = 1, /* See below */ + .ro = 0, /* Assume read-write */ .af = 1, /* No need for access tracking */ .ng = 1, /* Makes TLB flushes easier */ + .contig = 0, /* Assume non-contiguous */ .xn = 1, /* No need to execute outside .text */ + .avail = 0, /* Reference count for domheap mapping */ }};; /* Setting the User bit is strange, but the ATS1H[RW] instructions * don't seem to work otherwise, and since we never run on Xen -- 1.9.1 _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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