Xen devel - Jan 2007 - [PATCH] Save disable event flags in guest context

# HG changeset patch
# User john.levon@sun.com
# Date 1169823250 28800
# Node ID 65a037a7ad6b4a91dbe210b23665026571f637c4
# Parent  fd7f1ca5e56c0130d7376cfabd3d39e17e5f05eb
Save disable event flags in guest context

We weren''t storing the *disables_events flags when grabbing the guest
context,
causing 64-bit guests that use the flags to fail when restoring.

Signed-off-by: John Levon <john.levon@sun.com>

diff --git a/xen/arch/x86/domctl.c b/xen/arch/x86/domctl.c
--- a/xen/arch/x86/domctl.c
+++ b/xen/arch/x86/domctl.c
@@ -305,11 +305,15 @@ void arch_getdomaininfo_ctxt(
         c->user_regs.eflags |= v->arch.iopl << 12;
     }
 
-    c->flags = 0;
     if ( test_bit(_VCPUF_fpu_initialised, &v->vcpu_flags) )
-        c->flags |= VGCF_i387_valid;
+        __set_bit(_VGCF_i387_valid, &c->flags);
+    else
+        __clear_bit(_VGCF_i387_valid, &c->flags);
+
     if ( guest_kernel_mode(v, &v->arch.guest_context.user_regs) )
-        c->flags |= VGCF_in_kernel;
+        __set_bit(_VGCF_in_kernel, &c->flags);
+    else
+        __clear_bit(_VGCF_in_kernel, &c->flags);
 
     c->ctrlreg[3] =
xen_pfn_to_cr3(pagetable_get_pfn(v->arch.guest_table));
 

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On Fri, Jan 26, 2007 at 06:57:35AM -0700, john.levon@sun.com wrote:
> Save disable event flags in guest context
This is against 3.0.4 where I tested it, but a similar fix is needed in
unstable...

regards
john

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