From d589ae61bc27b2b9aaac0bf20a9077b6fbda32b6 Mon Sep 17 00:00:00 2001 From: Wei Liu Date: Wed, 3 Feb 2021 15:04:30 +0000 Subject: asm-generic/hyperv: update hv_msi_entry We will soon need to access fields inside the MSI address and MSI data fields. Introduce hv_msi_address_register and hv_msi_data_register. Fix up one user of hv_msi_entry in mshyperv.h. No functional change expected. Signed-off-by: Wei Liu Reviewed-by: Michael Kelley Link: https://lore.kernel.org/r/20210203150435.27941-12-wei.liu@kernel.org --- include/asm-generic/hyperv-tlfs.h | 28 ++++++++++++++++++++++++++-- 1 file changed, 26 insertions(+), 2 deletions(-) (limited to 'include/asm-generic/hyperv-tlfs.h') diff --git a/include/asm-generic/hyperv-tlfs.h b/include/asm-generic/hyperv-tlfs.h index 562a29981632..8ac797e6a91a 100644 --- a/include/asm-generic/hyperv-tlfs.h +++ b/include/asm-generic/hyperv-tlfs.h @@ -481,12 +481,36 @@ struct hv_create_vp { u64 flags; } __packed; +union hv_msi_address_register { + u32 as_uint32; + struct { + u32 reserved1:2; + u32 destination_mode:1; + u32 redirection_hint:1; + u32 reserved2:8; + u32 destination_id:8; + u32 msi_base:12; + }; +} __packed; + +union hv_msi_data_register { + u32 as_uint32; + struct { + u32 vector:8; + u32 delivery_mode:3; + u32 reserved1:3; + u32 level_assert:1; + u32 trigger_mode:1; + u32 reserved2:16; + }; +} __packed; + /* HvRetargetDeviceInterrupt hypercall */ union hv_msi_entry { u64 as_uint64; struct { - u32 address; - u32 data; + union hv_msi_address_register address; + union hv_msi_data_register data; } __packed; }; -- cgit v1.2.3