[PATCH v7 09/17] xen/hvm/params: Add a new delivery type for event-channel in HVM_PARAM_CALLBACK_IRQ
From: Shannon Zhao <hidden>
Date: 2016-03-24 14:47:45
Also in:
linux-devicetree, linux-efi, lkml
Subsystem:
the rest, xen hypervisor interface · Maintainers:
Linus Torvalds, Juergen Gross, Stefano Stabellini
This new delivery type which is for ARM shares the same value with HVM_PARAM_CALLBACK_TYPE_VECTOR which is for x86. val[15:8] is flag: val[7:0] is a PPI. To the flag, bit 8 stands the interrupt mode is edge(1) or level(0) and bit 9 stands the interrupt polarity is active low(1) or high(0). Signed-off-by: Shannon Zhao <redacted> Acked-by: Stefano Stabellini <redacted> --- include/xen/interface/hvm/params.h | 13 +++++++++++++ 1 file changed, 13 insertions(+)
diff --git a/include/xen/interface/hvm/params.h b/include/xen/interface/hvm/params.h
index 70ad208..4d61fc5 100644
--- a/include/xen/interface/hvm/params.h
+++ b/include/xen/interface/hvm/params.h@@ -47,11 +47,24 @@ * Domain = val[47:32], Bus = val[31:16] DevFn = val[15:8], IntX = val[1:0] */ +#if defined(__i386__) || defined(__x86_64__) #define HVM_PARAM_CALLBACK_TYPE_VECTOR 2 /* * val[7:0] is a vector number. Check for XENFEAT_hvm_callback_vector to know * if this delivery method is available. */ +#elif defined(__arm__) || defined(__aarch64__) +#define HVM_PARAM_CALLBACK_TYPE_PPI 2 +/* + * val[55:16] needs to be zero. + * val[15:8] is interrupt flag of the PPI used by event-channel: + * bit 8: the PPI is edge(1) or level(0) triggered + * bit 9: the PPI is active low(1) or high(0) + * val[7:0] is a PPI number used by event-channel. + * This is only used by ARM/ARM64 and masking/eoi the interrupt associated to + * the notification is handled by the interrupt controller. + */ +#endif #define HVM_PARAM_STORE_PFN 1 #define HVM_PARAM_STORE_EVTCHN 2
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2.1.4