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[Xen-devel] GET_CURRENT macro in entry.S
| To: | xen-devel@xxxxxxxxxxxxxxxxxxx, "Keir Fraser" <keir.fraser@xxxxxxxxxxxxx>, "Jeremy Fitzhardinge" <jeremy@xxxxxxxx> |
|---|---|
| Subject: | [Xen-devel] GET_CURRENT macro in entry.S |
| From: | "pallavi jk" <pallutai@xxxxxxxxx> |
| Date: | Mon, 29 Dec 2008 22:15:13 +0530 |
| Cc: | |
| Delivery-date: | Mon, 29 Dec 2008 08:45:37 -0800 |
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I am unable to understand what this macro in entry.S does. Can someone please explain its working? #define GET_CURRENT(reg) \ movl $STACK_SIZE-4, reg; \ orl %esp, reg; \ andl $~3,reg; \ movl (reg),reg; Also, how does the address of "struct vcpu" come in %ebx ? How do I obtain it? Please help. -Pallavi _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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