From: Michael Kelley <mikelley@microsoft.com>
To: Wei Liu <wei.liu@kernel.org>,
Linux on Hyper-V List <linux-hyperv@vger.kernel.org>
Cc: "virtualization@lists.linux-foundation.org"
<virtualization@lists.linux-foundation.org>,
Linux Kernel List <linux-kernel@vger.kernel.org>,
Vineeth Pillai <viremana@linux.microsoft.com>,
Sunil Muthuswamy <sunilmut@microsoft.com>,
Nuno Das Neves <nunodasneves@linux.microsoft.com>,
"pasha.tatashin@soleen.com" <pasha.tatashin@soleen.com>,
KY Srinivasan <kys@microsoft.com>,
Haiyang Zhang <haiyangz@microsoft.com>,
Stephen Hemminger <sthemmin@microsoft.com>,
Arnd Bergmann <arnd@arndb.de>,
"open list:GENERIC INCLUDE/ASM HEADER FILES"
<linux-arch@vger.kernel.org>
Subject: RE: [PATCH v6 13/16] asm-generic/hyperv: introduce hv_device_id and auxiliary structures
Date: Thu, 4 Feb 2021 17:15:19 +0000 [thread overview]
Message-ID: <MWHPR21MB1593B07CBD21150942540CECD7B39@MWHPR21MB1593.namprd21.prod.outlook.com> (raw)
In-Reply-To: <20210203150435.27941-14-wei.liu@kernel.org>
From: Wei Liu <wei.liu@kernel.org> Sent: Wednesday, February 3, 2021 7:05 AM
>
> We will need to identify the device we want Microsoft Hypervisor to
> manipulate. Introduce the data structures for that purpose.
>
> They will be used in a later patch.
>
> 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>
> ---
> v6:
> 1. Add reserved0 as field name.
> ---
> include/asm-generic/hyperv-tlfs.h | 79 +++++++++++++++++++++++++++++++
> 1 file changed, 79 insertions(+)
>
> diff --git a/include/asm-generic/hyperv-tlfs.h b/include/asm-generic/hyperv-tlfs.h
> index 94c7d77bbf68..ce53c0db28ae 100644
> --- a/include/asm-generic/hyperv-tlfs.h
> +++ b/include/asm-generic/hyperv-tlfs.h
> @@ -623,4 +623,83 @@ struct hv_set_vp_registers_input {
> } element[];
> } __packed;
>
> +enum hv_device_type {
> + HV_DEVICE_TYPE_LOGICAL = 0,
> + HV_DEVICE_TYPE_PCI = 1,
> + HV_DEVICE_TYPE_IOAPIC = 2,
> + HV_DEVICE_TYPE_ACPI = 3,
> +};
> +
> +typedef u16 hv_pci_rid;
> +typedef u16 hv_pci_segment;
> +typedef u64 hv_logical_device_id;
> +union hv_pci_bdf {
> + u16 as_uint16;
> +
> + struct {
> + u8 function:3;
> + u8 device:5;
> + u8 bus;
> + };
> +} __packed;
> +
> +union hv_pci_bus_range {
> + u16 as_uint16;
> +
> + struct {
> + u8 subordinate_bus;
> + u8 secondary_bus;
> + };
> +} __packed;
> +
> +union hv_device_id {
> + u64 as_uint64;
> +
> + struct {
> + u64 reserved0:62;
> + u64 device_type:2;
> + };
> +
> + /* HV_DEVICE_TYPE_LOGICAL */
> + struct {
> + u64 id:62;
> + u64 device_type:2;
> + } logical;
> +
> + /* HV_DEVICE_TYPE_PCI */
> + struct {
> + union {
> + hv_pci_rid rid;
> + union hv_pci_bdf bdf;
> + };
> +
> + hv_pci_segment segment;
> + union hv_pci_bus_range shadow_bus_range;
> +
> + u16 phantom_function_bits:2;
> + u16 source_shadow:1;
> +
> + u16 rsvdz0:11;
> + u16 device_type:2;
> + } pci;
> +
> + /* HV_DEVICE_TYPE_IOAPIC */
> + struct {
> + u8 ioapic_id;
> + u8 rsvdz0;
> + u16 rsvdz1;
> + u16 rsvdz2;
> +
> + u16 rsvdz3:14;
> + u16 device_type:2;
> + } ioapic;
> +
> + /* HV_DEVICE_TYPE_ACPI */
> + struct {
> + u32 input_mapping_base;
> + u32 input_mapping_count:30;
> + u32 device_type:2;
> + } acpi;
> +} __packed;
> +
> #endif
> --
> 2.20.1
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
next prev parent reply other threads:[~2021-02-04 17:16 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-03 15:04 [PATCH v6 00/16] Introducing Linux root partition support for Microsoft Hypervisor Wei Liu
2021-02-03 15:04 ` [PATCH v6 01/16] asm-generic/hyperv: change HV_CPU_POWER_MANAGEMENT to HV_CPU_MANAGEMENT Wei Liu
2021-02-03 15:04 ` [PATCH v6 02/16] x86/hyperv: detect if Linux is the root partition Wei Liu
2021-02-04 16:49 ` Michael Kelley
2021-02-03 15:04 ` [PATCH v6 03/16] Drivers: hv: vmbus: skip VMBus initialization if Linux is root Wei Liu
2021-02-03 15:04 ` [PATCH v6 04/16] clocksource/hyperv: use MSR-based access if running as root Wei Liu
2021-02-03 15:04 ` [PATCH v6 05/16] x86/hyperv: allocate output arg pages if required Wei Liu
2021-02-04 16:52 ` Michael Kelley
2021-02-03 15:04 ` [PATCH v6 06/16] x86/hyperv: extract partition ID from Microsoft Hypervisor if necessary Wei Liu
2021-02-04 16:54 ` Michael Kelley
2021-02-03 15:04 ` [PATCH v6 07/16] x86/hyperv: handling hypercall page setup for root Wei Liu
2021-02-03 15:04 ` [PATCH v6 08/16] ACPI / NUMA: add a stub function for node_to_pxm() Wei Liu
2021-02-04 18:38 ` Wei Liu
2021-02-04 18:45 ` Rafael J. Wysocki
2021-02-04 18:48 ` Wei Liu
2021-02-03 15:04 ` [PATCH v6 09/16] x86/hyperv: provide a bunch of helper functions Wei Liu
2021-02-04 17:13 ` Michael Kelley
2021-02-03 15:04 ` [PATCH v6 10/16] x86/hyperv: implement and use hv_smp_prepare_cpus Wei Liu
2021-02-03 15:04 ` [PATCH v6 11/16] asm-generic/hyperv: update hv_msi_entry Wei Liu
2021-02-03 15:04 ` [PATCH v6 12/16] asm-generic/hyperv: update hv_interrupt_entry Wei Liu
2021-02-03 15:04 ` [PATCH v6 13/16] asm-generic/hyperv: introduce hv_device_id and auxiliary structures Wei Liu
2021-02-04 17:15 ` Michael Kelley [this message]
2021-02-03 15:04 ` [PATCH v6 14/16] asm-generic/hyperv: import data structures for mapping device interrupts Wei Liu
2021-02-03 15:04 ` [PATCH v6 15/16] x86/hyperv: implement an MSI domain for root partition Wei Liu
2021-02-04 17:43 ` Michael Kelley
2021-02-04 17:56 ` Wei Liu
2021-02-04 18:40 ` Michael Kelley
2021-02-04 18:43 ` Wei Liu
2021-02-03 15:04 ` [PATCH v6 16/16] iommu/hyperv: setup an IO-APIC IRQ remapping " Wei Liu
2021-02-04 13:33 ` Joerg Roedel
2021-02-04 17:53 ` Michael Kelley
2021-02-04 19:49 ` [PATCH v6 00/16] Introducing Linux root partition support for Microsoft Hypervisor Wei Liu
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