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freebsd-dev/sys/amd64/vmm/x86.h

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Import of bhyve hypervisor and utilities, part 1. vmm.ko - kernel module for VT-x, VT-d and hypervisor control bhyve - user-space sequencer and i/o emulation vmmctl - dump of hypervisor register state libvmm - front-end to vmm.ko chardev interface bhyve was designed and implemented by Neel Natu. Thanks to the following folk from NetApp who helped to make this available: Joe CaraDonna Peter Snyder Jeff Heller Sandeep Mann Steve Miller Brian Pawlowski
2011-05-13 04:54:01 +00:00
/*-
sys/amd64: further adoption of SPDX licensing ID tags. Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts.
2017-11-27 15:03:07 +00:00
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
Import of bhyve hypervisor and utilities, part 1. vmm.ko - kernel module for VT-x, VT-d and hypervisor control bhyve - user-space sequencer and i/o emulation vmmctl - dump of hypervisor register state libvmm - front-end to vmm.ko chardev interface bhyve was designed and implemented by Neel Natu. Thanks to the following folk from NetApp who helped to make this available: Joe CaraDonna Peter Snyder Jeff Heller Sandeep Mann Steve Miller Brian Pawlowski
2011-05-13 04:54:01 +00:00
* Copyright (c) 2011 NetApp, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY NETAPP, INC ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _X86_H_
#define _X86_H_
#define CPUID_0000_0000 (0x0)
#define CPUID_0000_0001 (0x1)
#define CPUID_0000_0002 (0x2)
#define CPUID_0000_0003 (0x3)
#define CPUID_0000_0004 (0x4)
Changes to allow the GENERIC+bhye kernel built from this branch to run as a 1/2 CPU guest on an 8.1 bhyve host. bhyve/inout.c inout.h fbsdrun.c - Rather than exiting on accesses to unhandled i/o ports, emulate hardware by returning -1 on reads and ignoring writes to unhandled ports. Support the previous mode by allowing a 'strict' parameter to be set from the command line. The 8.1 guest kernel was vastly cut down from GENERIC and had no ISA devices. Booting GENERIC exposes a massive amount of random touching of i/o ports (hello syscons/vga/atkbdc). bhyve/consport.c dev/bvm/bvm_console.c - implement a simplistic signature for the bvm console by returning 'bv' for an inw on the port. Also, set the priority of the console to CN_REMOTE if the signature was returned. This works better in an environment where multiple consoles are in the kernel (hello syscons) bhyve/rtc.c - return 0 for the access to RTC_EQUIPMENT (yes, you syscons) amd64/vmm/x86.c x86.h - hide a bunch more CPUID leaf 1 bits from the guest to prevent cpufreq drivers from probing. The next step will be to move CPUID handling completely into user-space. This will allow the full spectrum of changes from presenting a lowest-common-denominator CPU type/feature set, to exposing (almost) everything that the host can support. Reviewed by: neel Obtained from: NetApp
2011-05-19 21:53:25 +00:00
#define CPUID_0000_0006 (0x6)
Handle CPUID leaf 0x7 now that FreeBSD is using it. Return 0's for now. Reviewed by: neel Obtained from: NetApp
2012-11-20 06:01:03 +00:00
#define CPUID_0000_0007 (0x7)
Import of bhyve hypervisor and utilities, part 1. vmm.ko - kernel module for VT-x, VT-d and hypervisor control bhyve - user-space sequencer and i/o emulation vmmctl - dump of hypervisor register state libvmm - front-end to vmm.ko chardev interface bhyve was designed and implemented by Neel Natu. Thanks to the following folk from NetApp who helped to make this available: Joe CaraDonna Peter Snyder Jeff Heller Sandeep Mann Steve Miller Brian Pawlowski
2011-05-13 04:54:01 +00:00
#define CPUID_0000_000A (0xA)
#define CPUID_0000_000B (0xB)
Allow CPUID leaf 0xD to be read as zeroes. Linux reads this even though extended features aren't exposed. Support for 0xD will be expanded once AVX[2] is exposed to the guest in upcoming work.
2013-09-06 05:16:10 +00:00
#define CPUID_0000_000D (0xD)
Import of bhyve hypervisor and utilities, part 1. vmm.ko - kernel module for VT-x, VT-d and hypervisor control bhyve - user-space sequencer and i/o emulation vmmctl - dump of hypervisor register state libvmm - front-end to vmm.ko chardev interface bhyve was designed and implemented by Neel Natu. Thanks to the following folk from NetApp who helped to make this available: Joe CaraDonna Peter Snyder Jeff Heller Sandeep Mann Steve Miller Brian Pawlowski
2011-05-13 04:54:01 +00:00
#define CPUID_8000_0000 (0x80000000)
#define CPUID_8000_0001 (0x80000001)
#define CPUID_8000_0002 (0x80000002)
#define CPUID_8000_0003 (0x80000003)
#define CPUID_8000_0004 (0x80000004)
#define CPUID_8000_0006 (0x80000006)
#define CPUID_8000_0007 (0x80000007)
#define CPUID_8000_0008 (0x80000008)
vmm(4): Take steps towards multicore bhyve AMD support vmm's CPUID emulation presented Intel topology information to the guest, but disabled AMD topology information and in some cases passed through garbage. I.e., CPUID leaves 0x8000_001[de] were passed through to the guest, but guest CPUs can migrate between host threads, so the information presented was not consistent. This could easily be observed with 'cpucontrol -i 0xfoo /dev/cpuctl0'. Slightly improve this situation by enabling the AMD topology feature flag and presenting at least the CPUID fields used by FreeBSD itself to probe topology on more modern AMD64 hardware (Family 15h+). Older stuff is probably less interesting. I have not been able to empirically confirm it is sufficient, but it should not regress anything either. Reviewed by: araujo (previous version) Relnotes: sure
2019-01-16 02:19:04 +00:00
#define CPUID_8000_001D (0x8000001D)
#define CPUID_8000_001E (0x8000001E)
Import of bhyve hypervisor and utilities, part 1. vmm.ko - kernel module for VT-x, VT-d and hypervisor control bhyve - user-space sequencer and i/o emulation vmmctl - dump of hypervisor register state libvmm - front-end to vmm.ko chardev interface bhyve was designed and implemented by Neel Natu. Thanks to the following folk from NetApp who helped to make this available: Joe CaraDonna Peter Snyder Jeff Heller Sandeep Mann Steve Miller Brian Pawlowski
2011-05-13 04:54:01 +00:00
/*
* CPUID instruction Fn0000_0001:
*/
#define CPUID_0000_0001_APICID_MASK (0xff<<24)
#define CPUID_0000_0001_APICID_SHIFT 24
/*
* CPUID instruction Fn0000_0001 ECX
*/
#define CPUID_0000_0001_FEAT0_VMX (1<<5)
Add support for trapping MMIO writes to local apic registers and emulating them. The default behavior is still to present the local apic to the guest in the x2apic mode.
2012-09-25 22:31:35 +00:00
int x86_emulate_cpuid(struct vm *vm, int vcpu_id, uint32_t *eax, uint32_t *ebx,
uint32_t *ecx, uint32_t *edx);
Import of bhyve hypervisor and utilities, part 1. vmm.ko - kernel module for VT-x, VT-d and hypervisor control bhyve - user-space sequencer and i/o emulation vmmctl - dump of hypervisor register state libvmm - front-end to vmm.ko chardev interface bhyve was designed and implemented by Neel Natu. Thanks to the following folk from NetApp who helped to make this available: Joe CaraDonna Peter Snyder Jeff Heller Sandeep Mann Steve Miller Brian Pawlowski
2011-05-13 04:54:01 +00:00
Do a proper emulation of guest writes to MSR_EFER. - Must-Be-Zero bits cannot be set. - EFER_LME and EFER_LMA should respect the long mode consistency checks. - EFER_NXE, EFER_FFXSR, EFER_TCE can be set if allowed by CPUID capabilities. - Flag an error if guest tries to set EFER_LMSLE since bhyve doesn't enforce segment limits in 64-bit mode. MFC after: 2 weeks
2015-05-06 05:40:20 +00:00
enum vm_cpuid_capability {
VCC_NONE,
VCC_NO_EXECUTE,
VCC_FFXSR,
VCC_TCE,
VCC_LAST
};
/*
* Return 'true' if the capability 'cap' is enabled in this virtual cpu
* and 'false' otherwise.
*/
bool vm_cpuid_capability(struct vm *vm, int vcpuid, enum vm_cpuid_capability);
Import of bhyve hypervisor and utilities, part 1. vmm.ko - kernel module for VT-x, VT-d and hypervisor control bhyve - user-space sequencer and i/o emulation vmmctl - dump of hypervisor register state libvmm - front-end to vmm.ko chardev interface bhyve was designed and implemented by Neel Natu. Thanks to the following folk from NetApp who helped to make this available: Joe CaraDonna Peter Snyder Jeff Heller Sandeep Mann Steve Miller Brian Pawlowski
2011-05-13 04:54:01 +00:00
#endif
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