RE: [PATCH v5 14/16] asm-generic/hyperv: import data structures for mapping device interrupts

Michael Kelley
2021-01-26T10:25:40Z

From: Wei Liu <wei.liu@kernel.org> Sent: Wednesday, January 20, 2021 4:01 AM
>
> Signed-off-by: Sunil Muthuswamy <sunilmut@microsoft.com>
> Co-Developed-by: Sunil Muthuswamy <sunilmut@microsoft.com>
> Signed-off-by: Wei Liu <wei.liu@kernel.org>
> ---
> arch/x86/include/asm/hyperv-tlfs.h | 13 +++++++++++
> include/asm-generic/hyperv-tlfs.h | 36 ++++++++++++++++++++++++++++++
> 2 files changed, 49 insertions(+)
>
> diff --git a/arch/x86/include/asm/hyperv-tlfs.h b/arch/x86/include/asm/hyperv-tlfs.h
> index 204010350604..ab7d6cde548d 100644
> --- a/arch/x86/include/asm/hyperv-tlfs.h
> +++ b/arch/x86/include/asm/hyperv-tlfs.h
> @@ -533,6 +533,19 @@ struct hv_partition_assist_pg {
> u32 tlb_lock_count;
> };
>
> +enum hv_interrupt_type {
> + HV_X64_INTERRUPT_TYPE_FIXED = 0x0000,
> + HV_X64_INTERRUPT_TYPE_LOWESTPRIORITY = 0x0001,
> + HV_X64_INTERRUPT_TYPE_SMI = 0x0002,
> + HV_X64_INTERRUPT_TYPE_REMOTEREAD = 0x0003,
> + HV_X64_INTERRUPT_TYPE_NMI = 0x0004,
> + HV_X64_INTERRUPT_TYPE_INIT = 0x0005,
> + HV_X64_INTERRUPT_TYPE_SIPI = 0x0006,
> + HV_X64_INTERRUPT_TYPE_EXTINT = 0x0007,
> + HV_X64_INTERRUPT_TYPE_LOCALINT0 = 0x0008,
> + HV_X64_INTERRUPT_TYPE_LOCALINT1 = 0x0009,
> + HV_X64_INTERRUPT_TYPE_MAXIMUM = 0x000A,
> +};
>
> #include <asm-generic/hyperv-tlfs.h>
>
> diff --git a/include/asm-generic/hyperv-tlfs.h b/include/asm-generic/hyperv-tlfs.h
> index 42ff1326c6bd..07efe0131fe3 100644
> --- a/include/asm-generic/hyperv-tlfs.h
> +++ b/include/asm-generic/hyperv-tlfs.h
> @@ -152,6 +152,8 @@ struct ms_hyperv_tsc_page {
> #define HVCALL_RETRIEVE_DEBUG_DATA 0x006a
> #define HVCALL_RESET_DEBUG_SESSION 0x006b
> #define HVCALL_ADD_LOGICAL_PROCESSOR 0x0076
> +#define HVCALL_MAP_DEVICE_INTERRUPT 0x007c
> +#define HVCALL_UNMAP_DEVICE_INTERRUPT 0x007d
> #define HVCALL_RETARGET_INTERRUPT 0x007e
> #define HVCALL_FLUSH_GUEST_PHYSICAL_ADDRESS_SPACE 0x00af
> #define HVCALL_FLUSH_GUEST_PHYSICAL_ADDRESS_LIST 0x00b0
> @@ -702,4 +704,38 @@ union hv_device_id {
> } acpi;
> } __packed;
>
> +enum hv_interrupt_trigger_mode {
> + HV_INTERRUPT_TRIGGER_MODE_EDGE = 0,
> + HV_INTERRUPT_TRIGGER_MODE_LEVEL = 1,
> +};
> +
> +struct hv_device_interrupt_descriptor {
> + u32 interrupt_type;
> + u32 trigger_mode;
> + u32 vector_count;
> + u32 reserved;
> + struct hv_device_interrupt_target target;
> +} __packed;
> +
> +struct hv_input_map_device_interrupt {
> + u64 partition_id;
> + u64 device_id;
> + u64 flags;
> + struct hv_interrupt_entry logical_interrupt_entry;
> + struct hv_device_interrupt_descriptor interrupt_descriptor;
> +} __packed;
> +
> +struct hv_output_map_device_interrupt {
> + struct hv_interrupt_entry interrupt_entry;
> +} __packed;
> +
> +struct hv_input_unmap_device_interrupt {
> + u64 partition_id;
> + u64 device_id;
> + struct hv_interrupt_entry interrupt_entry;
> +} __packed;
> +
> +#define HV_SOURCE_SHADOW_NONE 0x0
> +#define HV_SOURCE_SHADOW_BRIDGE_BUS_RANGE 0x1
> +
> #endif
> --
> 2.20.1

Reviewed-by: Michael Kelley <mikelley@microsoft.com>