search for: sh_ctxt

...================================ --- 2008-04-15.orig/xen/arch/x86/mm/shadow/common.c 2008-04-11 14:48:16.000000000 +0200 +++ 2008-04-15/xen/arch/x86/mm/shadow/common.c 2008-04-15 08:48:15.000000000 +0200 @@ -262,6 +262,7 @@ hvm_emulate_cmpxchg(enum x86_segment seg v, addr, old, new, bytes, sh_ctxt); } +#ifdef __i386__ static int hvm_emulate_cmpxchg8b(enum x86_segment seg, unsigned long offset, @@ -288,13 +289,16 @@ hvm_emulate_cmpxchg8b(enum x86_segment s return v->arch.paging.mode->shadow.x86_emulate_cmpxchg8b( v, addr, old_lo, old_hi, new_lo...

...addr) ) + return (long)addr; + + old = (((u64) old_hi) << 32) | (u64) old_lo; + new = (((u64) new_hi) << 32) | (u64) new_lo; + + prev = cmpxchg(((u64 *)addr), old, new); + + if ( prev != old ) + rc = X86EMUL_CMPXCHG_FAILED; + + emulate_unmap_dest(v, addr, 8, sh_ctxt); + + return rc; +} +#endif + static int hvmemul_cmpxchg( enum x86_segment seg, unsigned long offset, @@ -528,8 +705,32 @@ unsigned int bytes, struct x86_emulate_ctxt *ctxt) { - /* Fix this in case the guest is really relying on r-m-w atomicity. */ - return hvmemul_wr...

This patch series is a reworking of a series developed by Mukesh Rathor at Oracle. The entirety of the design and development was done by him; I have only reworked, reorganized, and simplified things in a way that I think makes more sense. The vast majority of the credit for this effort therefore goes to him. This version is labelled v13 because it is based on his most recent series, v11.