plain text document attachment (xx-paravirt-pda.patch)
We don't actually use this. But we started to. This patch adds a
vcpu entry into the PDA. This can come in handy, but we are not
sure if we want it. This is why it's in its own little patch.
Signed-off-by: Steven Rostedt srostedt@xxxxxxxxxx
Signed-off-by: Glauber de Oliveira Costa <gcosta@xxxxxxxxxx>
Index: work-nopv/arch/x86_64/kernel/asm-offsets.c
===================================================================
--- work-nopv.orig/arch/x86_64/kernel/asm-offsets.c
+++ work-nopv/arch/x86_64/kernel/asm-offsets.c
@@ -48,6 +48,9 @@ int main(void)
ENTRY(cpunumber);
ENTRY(irqstackptr);
ENTRY(data_offset);
+ /* XXX: this should probably be a paravirt_ops stub, to be filled in
+ * with the hypervisor code */
+ ENTRY(vcpu);
BLANK();
#undef ENTRY
#ifdef CONFIG_IA32_EMULATION
Index: clean-start/include/asm-x86_64/pda.h
===================================================================
--- clean-start.orig/include/asm-x86_64/pda.h
+++ clean-start/include/asm-x86_64/pda.h
@@ -29,6 +29,7 @@ struct x8664_pda {
short isidle;
struct mm_struct *active_mm;
unsigned apic_timer_irqs;
+ void *vcpu;
} ____cacheline_aligned_in_smp;
extern struct x8664_pda *_cpu_pda[];
--
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