/* SPDX-License-Identifier: MIT */
/*
* Copyright (c) 2007, Keir Fraser
*/
#ifndef __XEN_PUBLIC_HVM_PARAMS_H__
#define __XEN_PUBLIC_HVM_PARAMS_H__
#include "hvm_op.h"
/* These parameters are deprecated and their meaning is undefined. */
#if defined(__XEN__) || defined(__XEN_TOOLS__)
#define HVM_PARAM_PAE_ENABLED 4
#define HVM_PARAM_DM_DOMAIN 13
#define HVM_PARAM_MEMORY_EVENT_CR0 20
#define HVM_PARAM_MEMORY_EVENT_CR3 21
#define HVM_PARAM_MEMORY_EVENT_CR4 22
#define HVM_PARAM_MEMORY_EVENT_INT3 23
#define HVM_PARAM_NESTEDHVM 24
#define HVM_PARAM_MEMORY_EVENT_SINGLE_STEP 25
#define HVM_PARAM_BUFIOREQ_EVTCHN 26
#define HVM_PARAM_MEMORY_EVENT_MSR 30
#endif /* defined(__XEN__) || defined(__XEN_TOOLS__) */
/*
* Parameter space for HVMOP_{set,get}_param.
*/
#define HVM_PARAM_CALLBACK_IRQ 0
#define HVM_PARAM_CALLBACK_IRQ_TYPE_MASK xen_mk_ullong(0xFF00000000000000)
/*
* How should CPU0 event-channel notifications be delivered?
*
* If val == 0 then CPU0 event-channel notifications are not delivered.
* If val != 0, val[63:56] encodes the type, as follows:
*/
#define HVM_PARAM_CALLBACK_TYPE_GSI 0
/*
* val[55:0] is a delivery GSI. GSI 0 cannot be used, as it aliases val == 0,
* and disables all notifications.
*/
#define HVM_PARAM_CALLBACK_TYPE_PCI_INTX 1
/*
* val[55:0] is a delivery PCI INTx line:
* 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.
*/
#define HVM_PARAM_CALLBACK_TYPE_PPI_FLAG_MASK 0xFF00
#define HVM_PARAM_CALLBACK_TYPE_PPI_FLAG_LOW_LEVEL 2
#endif
/*
* These are not used by Xen. They are here for convenience of HVM-guest
* xenbus implementations.
*/
#define HVM_PARAM_STORE_PFN 1
#define HVM_PARAM_STORE_EVTCHN 2
#define HVM_PARAM_IOREQ_PFN 5
#define HVM_PARAM_BUFIOREQ_PFN 6
#if defined(__i386__) || defined(__x86_64__)
/*
* Viridian enlightenments
*
* (See http://download.microsoft.com/download/A/B/4/AB43A34E-BDD0-4FA6-BDEF-79EEF16E880B/Hypervisor%20Top%20Level%20Functional%20Specification%20v4.0.docx)
*
* To expose viridian enlightenments to the guest set this parameter
* to the desired feature mask. The base feature set must be present
* in any valid feature mask.
*/
#define HVM_PARAM_VIRIDIAN 9
/* Base+Freq viridian feature sets:
*
* - Hypercall MSRs (HV_X64_MSR_GUEST_OS_ID and HV_X64_MSR_HYPERCALL)
* - APIC access MSRs (HV_X64_MSR_EOI, HV_X64_MSR_ICR and HV_X64_MSR_TPR)
* - Virtual Processor index MSR (HV_X64_MSR_VP_INDEX)
* - Timer frequency MSRs (HV_X64_MSR_TSC_FREQUENCY and
* HV_X64_MSR_APIC_FREQUENCY)
*/
#define _HVMPV_base_freq 0
#define HVMPV_base_freq (1 << _HVMPV_base_freq)
/* Feature set modifications */
/* Disable timer frequency MSRs (HV_X64_MSR_TSC_FREQUENCY and
* HV_X64_MSR_APIC_FREQUENCY).
* This modification restores the viridian feature set to the
* original 'base' set exposed in releases prior to Xen 4.4.
*/
#define _HVMPV_no_freq 1
#define HVMPV_no_freq (1 << _HVMPV_no_freq)
/* Enable Partition Time Reference Counter (HV_X64_MSR_TIME_REF_COUNT) */
#define _HVMPV_time_ref_count 2
#define HVMPV_time_ref_count (1 << _HVMPV_time_ref_count)
/* Enable Reference TSC Page (HV_X64_MSR_REFERENCE_TSC) */
#define _HVMPV_reference_tsc 3
#define HVMPV_reference_tsc (1 << _HVMPV_reference_tsc)
/* Use Hypercall for remote TLB flush */
#define _HVMPV_hcall_remote_tlb_flush 4
#define HVMPV_hcall_remote_tlb_flush (1 << _HVMPV_hcall_remote_tlb_flush)
/* Use APIC assist */
#define _HVMPV_apic_assist 5
#define HVMPV_apic_assist (1 << _HVMPV_apic_assist)
/* Enable crash MSRs */
#define _HVMPV_crash_ctl 6
#define HVMPV_crash_ctl (1 << _HVMPV_crash_ctl)
/* Enable SYNIC MSRs */
#define _HVMPV_synic 7
#define HVMPV_synic (1 << _HVMPV_synic)
/* Enable STIMER MSRs */
#define _HVMPV_stimer 8
#define HVMPV_stimer (1 << _HVMPV_stimer)
/* Use Synthetic Cluster IPI Hypercall */
#define _HVMPV_hcall_ipi 9
#define HVMPV_hcall_ipi (1 << _HVMPV_hcall_ipi)
/* Enable ExProcessorMasks */
#define _HVMPV_ex_processor_masks 10
#define HVMPV_ex_processor_masks (1 << _HVMPV_ex_processor_masks)
/* Allow more than 64 VPs */
#define _HVMPV_no_vp_limit 11
#define HVMPV_no_vp_limit (1 << _HVMPV_no_vp_limit)
/* Enable vCPU hotplug */
#define _HVMPV_cpu_hotplug 12
#define HVMPV_cpu_hotplug (1 << _HVMPV_cpu_hotplug)
#define HVMPV_feature_mask \
(HVMPV_base_freq | \
HVMPV_no_freq | \
HVMPV_time_ref_count | \
HVMPV_reference_tsc | \
HVMPV_hcall_remote_tlb_flush | \
HVMPV_apic_assist | \
HVMPV_crash_ctl | \
HVMPV_synic | \
HVMPV_stimer | \
HVMPV_hcall_ipi | \
HVMPV_ex_processor_masks | \
HVMPV_no_vp_limit | \
HVMPV_cpu_hotplug)
#endif
/*
* Set mode for virtual timers (currently x86 only):
* delay_for_missed_ticks (default):
* Do not advance a vcpu's time beyond the correct delivery time for
* interrupts that have been missed due to preemption. Deliver missed
* interrupts when the vcpu is rescheduled and advance the vcpu's virtual
* time stepwise for each one.
* no_delay_for_missed_ticks:
* As above, missed interrupts are delivered, but guest time always tracks
* wallclock (i.e., real) time while doing so.
* no_missed_ticks_pending:
* No missed interrupts are held pending. Instead, to ensure ticks are
* delivered at some non-zero rate, if we detect missed ticks then the
* internal tick alarm is not disabled if the VCPU is preempted during the
* next tick period.
* one_missed_tick_pending:
* Missed interrupts are collapsed together and delivered as one 'late tick'.
* Guest time always tracks wallclock (i.e., real) time.
*/
#define HVM_PARAM_TIMER_MODE 10
#define HVMPTM_delay_for_missed_ticks 0
#define HVMPTM_no_delay_for_missed_ticks 1
#define HVMPTM_no_missed_ticks_pending 2
#define HVMPTM_one_missed_tick_pending 3
/* Boolean: Enable virtual HPET (high-precision event timer)? (x86-only) */
#define HVM_PARAM_HPET_ENABLED 11
/* Identity-map page directory used by Intel EPT when CR0.PG=0. */
#define HVM_PARAM_IDENT_PT 12
/* ACPI S state: currently support S0 and S3 on x86. */
#define HVM_PARAM_ACPI_S_STATE 14
/* TSS used on Intel when CR0.PE=0. */
#define HVM_PARAM_VM86_TSS 15
/* Boolean: Enable aligning all periodic vpts to reduce interrupts */
#define HVM_PARAM_VPT_ALIGN 16
/* Console debug shared memory ring and event channel */
#define HVM_PARAM_CONSOLE_PFN 17
#define HVM_PARAM_CONSOLE_EVTCHN 18
/*
* Select location of ACPI PM1a and TMR control blocks. Currently two locations
* are supported, specified by version 0 or 1 in this parameter:
* - 0: default, use the old addresses
* PM1A_EVT == 0x1f40; PM1A_CNT == 0x1f44; PM_TMR == 0x1f48
* - 1: use the new default qemu addresses
* PM1A_EVT == 0xb000; PM1A_CNT == 0xb004; PM_TMR == 0xb008
* You can find these address definitions in <hvm/ioreq.h>
*/
#define HVM_PARAM_ACPI_IOPORTS_LOCATION 19
/* Params for the mem event rings */
#define HVM_PARAM_PAGING_RING_PFN 27
#define HVM_PARAM_MONITOR_RING_PFN 28
#define HVM_PARAM_SHARING_RING_PFN 29
/* SHUTDOWN_* action in case of a triple fault */
#define HVM_PARAM_TRIPLE_FAULT_REASON 31
#define HVM_PARAM_IOREQ_SERVER_PFN 32
#define HVM_PARAM_NR_IOREQ_SERVER_PAGES 33
/* Location of the VM Generation ID in guest physical address space. */
#define HVM_PARAM_VM_GENERATION_ID_ADDR 34
/*
* Set mode for altp2m:
* disabled: don't activate altp2m (default)
* mixed: allow access to all altp2m ops for both in-guest and external tools
* external: allow access to external privileged tools only
* limited: guest only has limited access (ie. control VMFUNC and #VE)
*
* Note that 'mixed' mode has not been evaluated for safety from a
* security perspective. Before using this mode in a
* security-critical environment, each subop should be evaluated for
* safety, with unsafe subops blacklisted in XSM.
*/
#define HVM_PARAM_ALTP2M 35
#define XEN_ALTP2M_disabled 0
#define XEN_ALTP2M_mixed 1
#define XEN_ALTP2M_external 2
#define XEN_ALTP2M_limited 3
/*
* Size of the x87 FPU FIP/FDP registers that the hypervisor needs to
* save/restore. This is a workaround for a hardware limitation that
* does not allow the full FIP/FDP and FCS/FDS to be restored.
*
* Valid values are:
*
* 8: save/restore 64-bit FIP/FDP and clear FCS/FDS (default if CPU
* has FPCSDS feature).
*
* 4: save/restore 32-bit FIP/FDP, FCS/FDS, and clear upper 32-bits of
* FIP/FDP.
*
* 0: allow hypervisor to choose based on the value of FIP/FDP
* (default if CPU does not have FPCSDS).
*
* If FPCSDS (bit 13 in CPUID leaf 0x7, subleaf 0x0) is set, the CPU
* never saves FCS/FDS and this parameter should be left at the
* default of 8.
*/
#define HVM_PARAM_X87_FIP_WIDTH 36
/*
* TSS (and its size) used on Intel when CR0.PE=0. The address occupies
* the low 32 bits, while the size is in the high 32 ones.
*/
#define HVM_PARAM_VM86_TSS_SIZED 37
/* Enable MCA capabilities. */
#define HVM_PARAM_MCA_CAP 38
#define XEN_HVM_MCA_CAP_LMCE (xen_mk_ullong(1) << 0)
#define XEN_HVM_MCA_CAP_MASK XEN_HVM_MCA_CAP_LMCE
#define HVM_NR_PARAMS 39
#endif /* __XEN_PUBLIC_HVM_PARAMS_H__ */