From a43f1e9b9d44eda4dd0338904ab422b4542bd031 Mon Sep 17 00:00:00 2001 From: Shannon Zhao Date: Tue, 29 Mar 2016 14:26:57 +0200 Subject: [PATCH] hvm/params: add a new delivery type for event-channel in HVM_PARAM_CALLBACK_IRQ 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 Acked-by: Jan Beulich --- xen/include/public/hvm/params.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/xen/include/public/hvm/params.h b/xen/include/public/hvm/params.h index e69c72cffa..f7338a3c99 100644 --- a/xen/include/public/hvm/params.h +++ b/xen/include/public/hvm/params.h @@ -49,11 +49,24 @@ * 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 /* * These are not used by Xen. They are here for convenience of HVM-guest -- 2.30.2