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dm: Use new ioctl ACRN_IOCTL_GET_PLATFORM_INFO
IC_GET_PLATFORM_INFO -> ACRN_IOCTL_GET_PLATFORM_INFO struct acrn_vm_config -> struct acrn_vm_config_header(DM only) struct platform_info -> struct acrn_platform_info Tracked-On: #6282 Signed-off-by: Shuo A Liu <shuo.a.liu@intel.com>
This commit is contained in:
Shuo A Liu
wenlingz
@@ -52,18 +52,25 @@
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#ifndef _VHM_IOCTL_DEFS_H_
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#define _VHM_IOCTL_DEFS_H_
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#include <linux/types.h>
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/* Commmon structures for ACRN/HSM/DM */
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#include "acrn_common.h"
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/* The ioctl type, documented in ioctl-number.rst */
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#define ACRN_IOCTL_TYPE 0xA2
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/*
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* Commmon IOCTL ID defination for HSM/DM
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*/
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#define _IC_ID(x, y) (((x)<<24)|(y))
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#define IC_ID 0x43UL
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/* General */
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#define IC_ID_GEN_BASE 0x0UL
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#define IC_GET_PLATFORM_INFO _IC_ID(IC_ID, IC_ID_GEN_BASE + 0x03)
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/*
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* Common IOCTL IDs definition for ACRN userspace
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*/
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#define ACRN_IOCTL_GET_PLATFORM_INFO \
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_IOR(ACRN_IOCTL_TYPE, 0x03, struct acrn_platform_info)
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/* VM management */
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#define IC_ID_VM_BASE 0x10UL
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@@ -280,96 +287,47 @@ struct ioreq_notify {
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uint32_t vcpu;
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};
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enum acrn_vm_load_order {
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PRE_LAUNCHED_VM = 0,
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SOS_VM,
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POST_LAUNCHED_VM,
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MAX_LOAD_ORDER
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#define ACRN_PLATFORM_LAPIC_IDS_MAX 64
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/**
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* struct acrn_platform_info - Information of a platform from hypervisor
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* @hw.cpu_num: Physical CPU number of the platform
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* @hw.version: Version of this structure
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* @hw.l2_cat_shift: Order of the number of threads sharing L2 cache
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* @hw.l3_cat_shift: Order of the number of threads sharing L3 cache
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* @hw.lapic_ids: IDs of LAPICs of all threads
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* @hw.reserved: Reserved for alignment and should be 0
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* @sw.max_vcpus_per_vm: Maximum number of vCPU of a VM
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* @sw.max_vms: Maximum number of VM
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* @sw.vm_config_size: Size of configuration of a VM
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* @sw.vm_configss_addr: Memory address which user space provided to
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* store the VM configurations
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* @sw.max_kata_containers: Maximum number of VM for Kata containers
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* @sw.reserved: Reserved for alignment and should be 0
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*
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* If vm_configs_addr is provided, the driver uses a bounce buffer (kmalloced
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* for continuous memory region) to fetch VM configurations data from the
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* hypervisor.
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*/
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struct acrn_platform_info {
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struct {
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__u16 cpu_num;
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__u16 version;
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__u32 l2_cat_shift;
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__u32 l3_cat_shift;
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__u8 lapic_ids[ACRN_PLATFORM_LAPIC_IDS_MAX];
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__u8 reserved[52];
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} hw;
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struct {
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__u16 max_vcpus_per_vm;
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__u16 max_vms;
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__u32 vm_config_size;
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void *vm_configs_addr;
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__u64 max_kata_containers;
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__u8 reserved[104];
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} sw;
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};
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/**
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* @brief data structure to parse configuration data of VM.
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*/
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struct acrn_vm_config {
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#define MAX_VM_OS_NAME_LEN 32U
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enum acrn_vm_load_order load_order;
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char name[MAX_VM_OS_NAME_LEN];
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const uint8_t uuid[16];
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uint8_t reserved[2];
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uint8_t severity;
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uint64_t cpu_affinity;
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uint64_t guest_flags;
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/*
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* Ignore other members that are hypervisor specific, actual size
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* of current structure can be parsed by 'vm_config_entry_size' of
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* 'struct platform_info'.
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*/
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} __aligned(8);
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/**
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* @brief data structure to track VHM platform information
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*/
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struct platform_info {
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/** Hardware Information */
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/** Physical CPU number */
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uint16_t cpu_num;
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/** version of this structure */
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uint16_t version;
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uint32_t l2_cat_shift;
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uint32_t l3_cat_shift;
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#define MAX_PLATFORM_LAPIC_IDS 64U
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/** pLAPIC ID list */
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uint8_t lapic_ids[MAX_PLATFORM_LAPIC_IDS];
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/**
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* sizeof(uint8_t reserved0[]) + sizeof(l2_cat_shift)
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* + sizeof(l3_cat_shift) + sizeof(uint8_t lapic_ids[]) = 124
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*
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* Note:
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* 1. DM needs to use the same logic as hypervisor to calculate vLAPIC IDs
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* based on physical APIC IDs and CPU affinity setting.
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*
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* 2. Can only support at most 116 cores. And it assumes LAPIC ID is 8bits
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* (X2APIC mode supports 32 bits)
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*/
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uint8_t reserved0[116U - MAX_PLATFORM_LAPIC_IDS];
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/** Configuration Information */
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/** Maximum vCPU number for one VM. */
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uint16_t max_vcpus_per_vm;
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/** Maximum Kata container number in SOS VM */
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uint8_t max_kata_containers;
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uint8_t reserved1[7];
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/** Number of configured VMs */
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uint16_t max_vms;
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/**
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* The size of acrn_vm_config is various on different platforms.
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* This is the size of this struct which is used by the caller
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* to parse the vm_configs array.
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*/
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uint32_t vm_config_entry_size;
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/**
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* Address to an array of struct acrn_vm_config, containing all
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* the configurations of all VMs. VHM treats it as an opague data
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* structure.
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*
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* The size of one array element is vm_config_entry_size while
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* the number of elements is max_vms.
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*/
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uint64_t vm_configs_addr;
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/** Align the size of Configuration info to 128Bytes. */
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uint8_t reserved2[104];
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} __aligned(8);
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struct acrn_ioeventfd {
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#define ACRN_IOEVENTFD_FLAG_PIO 0x01
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#define ACRN_IOEVENTFD_FLAG_DATAMATCH 0x02
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