/*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#ifndef __XEN_PUBLIC_HVM_PARAMS_H__
#define __XEN_PUBLIC_HVM_PARAMS_H__
#include "hvm_op.h"
/*
* Parameter space for HVMOP_{set,get}_param.
*/
/*
* How should CPU0 event-channel notifications be delivered?
* val[63:56] == 0: val[55:0] is a delivery GSI (Global System Interrupt).
* val[63:56] == 1: val[55:0] is a delivery PCI INTx line, as follows:
* Domain = val[47:32], Bus = val[31:16],
* DevFn = val[15: 8], IntX = val[ 1: 0]
* val[63:56] == 2: val[7:0] is a vector number, check for
* XENFEAT_hvm_callback_vector to know if this delivery
* method is available.
* If val == 0 then CPU0 event-channel notifications are not delivered.
*/
#define HVM_PARAM_CALLBACK_IRQ 0
/*
* 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_PAE_ENABLED 4
#define HVM_PARAM_IOREQ_PFN 5
#define HVM_PARAM_BUFIOREQ_PFN 6
#define HVM_PARAM_BUFIOREQ_EVTCHN 26
#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)
#define HVMPV_feature_mask \
(HVMPV_base_freq | \
HVMPV_no_freq | \
HVMPV_time_ref_count)
#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
/* Device Model domain, defaults to 0. */
#define HVM_PARAM_DM_DOMAIN 13
/* 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
/* Enable blocking memory events, async or sync (pause vcpu until response)
* onchangeonly indicates messages only on a change of value */
#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_MEMORY_EVENT_SINGLE_STEP 25
#define HVM_PARAM_MEMORY_EVENT_MSR 30
#define HVMPME_MODE_MASK (3 << 0)
#define HVMPME_mode_disabled 0
#define HVMPME_mode_async 1
#define HVMPME_mode_sync 2
#define HVMPME_onchangeonly (1 << 2)
/* Boolean: Enable nestedhvm (hvm only) */
#define HVM_PARAM_NESTEDHVM 24
/* Params for the mem event rings */
#define HVM_PARAM_PAGING_RING_PFN 27
#define HVM_PARAM_ACCESS_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
/*
* 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
#define HVM_NR_PARAMS 37
#endif /* __XEN_PUBLIC_HVM_PARAMS_H__ */