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authorBen Herrenschmidt <benh@kernel.crashing.org>2011-04-01 15:15:30 +1100
committerAlexander Graf <agraf@suse.de>2011-04-01 18:34:56 +0200
commitb45d63b62f0c05eb54bba0fafaf29b9b3f4dd99a (patch)
treed4361d808e7a29cb99e1fed95637ba7dc8a24445 /target-ppc/kvm_ppc.h
parent8d90ad900507e373a7aa26daacd51e0474760425 (diff)
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Implement PAPR CRQ hypercalls
This patch implements the infrastructure and hypercalls necessary for the PAPR specified CRQ (Command Request Queue) mechanism. This general request queueing system is used by many of the PAPR virtual IO devices, including the virtual scsi adapter. Signed-off-by: Ben Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: David Gibson <dwg@au1.ibm.com> Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'target-ppc/kvm_ppc.h')
-rw-r--r--target-ppc/kvm_ppc.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/target-ppc/kvm_ppc.h b/target-ppc/kvm_ppc.h
index 911b19e..5afb308 100644
--- a/target-ppc/kvm_ppc.h
+++ b/target-ppc/kvm_ppc.h
@@ -18,6 +18,17 @@ uint32_t kvmppc_get_tbfreq(void);
int kvmppc_get_hypercall(CPUState *env, uint8_t *buf, int buf_len);
int kvmppc_set_interrupt(CPUState *env, int irq, int level);
+#ifndef CONFIG_KVM
+#define kvmppc_eieio() do { } while (0)
+#else
+#define kvmppc_eieio() \
+ do { \
+ if (kvm_enabled()) { \
+ asm volatile("eieio" : : : "memory"); \
+ } \
+ } while (0)
+#endif
+
#ifndef KVM_INTERRUPT_SET
#define KVM_INTERRUPT_SET -1
#endif