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| author | Ben Herrenschmidt <benh@kernel.crashing.org> | 2011-04-01 15:15:30 +1100 |
|---|---|---|
| committer | Alexander Graf <agraf@suse.de> | 2011-04-01 18:34:56 +0200 |
| commit | b45d63b62f0c05eb54bba0fafaf29b9b3f4dd99a (patch) | |
| tree | d4361d808e7a29cb99e1fed95637ba7dc8a24445 /target-ppc | |
| parent | 8d90ad900507e373a7aa26daacd51e0474760425 (diff) | |
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')
| -rw-r--r-- | target-ppc/kvm_ppc.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/target-ppc/kvm_ppc.h b/target-ppc/kvm_ppc.h index 911b19e378..5afb308477 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 |