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x86-64-irq-cpustat.patch

PATCH New Arun Sharma 1 participant 1 message Apr 19, 2005

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Arun Sharma

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PATCH 5/5 x86-64-irq-cpustat.patch

Use fixed size data types in irq_cpustat and check it properly for softirqs before vmresume.

Signed-off-by Arun Sharma <[email protected]>
xen/arch/x86/x86_64/entry.S +3 -3
diff -Nru a/xen/arch/x86/x86_64/entry.S b/xen/arch/x86/x86_64/entry.S
@@ -242,10 +242,10 @@
         cli                             # tests must not race interrupts
 /*test_softirqs:*/  
         movq EDOMAIN_processor(%rbx),%rax
-#if 0
         shl  $6,%rax                    # sizeof(irq_cpustat) == 64
-        test %rcx,SYMBOL_NAME(irq_stat)(%rax,1)
-#endif
+        leaq SYMBOL_NAME(irq_stat)(%rip), %rdx
+        addq %rdx,%rax
+        testl %ecx,(%rax)
         jnz  vmx_process_softirqs
 
 vmx_restore_all_guest:
xen/include/asm-x86/hardirq.h +4 -4
diff -Nru a/xen/include/asm-x86/hardirq.h b/xen/include/asm-x86/hardirq.h
@@ -5,10 +5,10 @@
 #include <xen/cache.h>
 
 typedef struct {
-	unsigned int __softirq_pending;
-	unsigned int __local_irq_count;
-	unsigned int __nmi_count;
-	unsigned long idle_timestamp;
+	u32	__softirq_pending;
+	u32	__local_irq_count;
+	u32	__nmi_count;
+	u64	idle_timestamp;
 } __cacheline_aligned irq_cpustat_t;
 
 #include <xen/irq_cpustat.h>	/* Standard mappings for irq_cpustat_t above */