mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-30 08:46:43 +07:00
bb75c627fb
This reverts commit a15bd354f0.
It exceeded the padding on the SREGS struct, rendering the ABI
backwards-incompatible.
Conflicts:
arch/powerpc/kvm/powerpc.c
include/linux/kvm.h
Signed-off-by: Avi Kivity <avi@redhat.com>
296 lines
6.7 KiB
C
296 lines
6.7 KiB
C
/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License, version 2, as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* Copyright IBM Corp. 2007
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*
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* Authors: Hollis Blanchard <hollisb@us.ibm.com>
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*/
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#ifndef __LINUX_KVM_POWERPC_H
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#define __LINUX_KVM_POWERPC_H
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#include <linux/types.h>
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/* Select powerpc specific features in <linux/kvm.h> */
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#define __KVM_HAVE_SPAPR_TCE
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#define __KVM_HAVE_PPC_SMT
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struct kvm_regs {
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__u64 pc;
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__u64 cr;
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__u64 ctr;
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__u64 lr;
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__u64 xer;
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__u64 msr;
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__u64 srr0;
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__u64 srr1;
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__u64 pid;
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__u64 sprg0;
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__u64 sprg1;
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__u64 sprg2;
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__u64 sprg3;
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__u64 sprg4;
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__u64 sprg5;
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__u64 sprg6;
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__u64 sprg7;
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__u64 gpr[32];
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};
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#define KVM_SREGS_E_IMPL_NONE 0
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#define KVM_SREGS_E_IMPL_FSL 1
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#define KVM_SREGS_E_FSL_PIDn (1 << 0) /* PID1/PID2 */
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/*
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* Feature bits indicate which sections of the sregs struct are valid,
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* both in KVM_GET_SREGS and KVM_SET_SREGS. On KVM_SET_SREGS, registers
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* corresponding to unset feature bits will not be modified. This allows
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* restoring a checkpoint made without that feature, while keeping the
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* default values of the new registers.
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*
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* KVM_SREGS_E_BASE contains:
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* CSRR0/1 (refers to SRR2/3 on 40x)
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* ESR
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* DEAR
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* MCSR
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* TSR
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* TCR
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* DEC
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* TB
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* VRSAVE (USPRG0)
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*/
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#define KVM_SREGS_E_BASE (1 << 0)
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/*
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* KVM_SREGS_E_ARCH206 contains:
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*
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* PIR
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* MCSRR0/1
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* DECAR
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* IVPR
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*/
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#define KVM_SREGS_E_ARCH206 (1 << 1)
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/*
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* Contains EPCR, plus the upper half of 64-bit registers
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* that are 32-bit on 32-bit implementations.
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*/
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#define KVM_SREGS_E_64 (1 << 2)
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#define KVM_SREGS_E_SPRG8 (1 << 3)
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#define KVM_SREGS_E_MCIVPR (1 << 4)
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/*
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* IVORs are used -- contains IVOR0-15, plus additional IVORs
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* in combination with an appropriate feature bit.
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*/
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#define KVM_SREGS_E_IVOR (1 << 5)
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/*
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* Contains MAS0-4, MAS6-7, TLBnCFG, MMUCFG.
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* Also TLBnPS if MMUCFG[MAVN] = 1.
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*/
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#define KVM_SREGS_E_ARCH206_MMU (1 << 6)
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/* DBSR, DBCR, IAC, DAC, DVC */
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#define KVM_SREGS_E_DEBUG (1 << 7)
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/* Enhanced debug -- DSRR0/1, SPRG9 */
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#define KVM_SREGS_E_ED (1 << 8)
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/* Embedded Floating Point (SPE) -- IVOR32-34 if KVM_SREGS_E_IVOR */
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#define KVM_SREGS_E_SPE (1 << 9)
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/* External Proxy (EXP) -- EPR */
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#define KVM_SREGS_EXP (1 << 10)
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/* External PID (E.PD) -- EPSC/EPLC */
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#define KVM_SREGS_E_PD (1 << 11)
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/* Processor Control (E.PC) -- IVOR36-37 if KVM_SREGS_E_IVOR */
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#define KVM_SREGS_E_PC (1 << 12)
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/* Page table (E.PT) -- EPTCFG */
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#define KVM_SREGS_E_PT (1 << 13)
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/* Embedded Performance Monitor (E.PM) -- IVOR35 if KVM_SREGS_E_IVOR */
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#define KVM_SREGS_E_PM (1 << 14)
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/*
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* Special updates:
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*
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* Some registers may change even while a vcpu is not running.
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* To avoid losing these changes, by default these registers are
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* not updated by KVM_SET_SREGS. To force an update, set the bit
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* in u.e.update_special corresponding to the register to be updated.
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*
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* The update_special field is zero on return from KVM_GET_SREGS.
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*
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* When restoring a checkpoint, the caller can set update_special
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* to 0xffffffff to ensure that everything is restored, even new features
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* that the caller doesn't know about.
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*/
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#define KVM_SREGS_E_UPDATE_MCSR (1 << 0)
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#define KVM_SREGS_E_UPDATE_TSR (1 << 1)
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#define KVM_SREGS_E_UPDATE_DEC (1 << 2)
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#define KVM_SREGS_E_UPDATE_DBSR (1 << 3)
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/*
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* In KVM_SET_SREGS, reserved/pad fields must be left untouched from a
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* previous KVM_GET_REGS.
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*
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* Unless otherwise indicated, setting any register with KVM_SET_SREGS
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* directly sets its value. It does not trigger any special semantics such
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* as write-one-to-clear. Calling KVM_SET_SREGS on an unmodified struct
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* just received from KVM_GET_SREGS is always a no-op.
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*/
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struct kvm_sregs {
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__u32 pvr;
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union {
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struct {
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__u64 sdr1;
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struct {
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struct {
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__u64 slbe;
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__u64 slbv;
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} slb[64];
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} ppc64;
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struct {
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__u32 sr[16];
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__u64 ibat[8];
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__u64 dbat[8];
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} ppc32;
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} s;
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struct {
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union {
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struct { /* KVM_SREGS_E_IMPL_FSL */
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__u32 features; /* KVM_SREGS_E_FSL_ */
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__u32 svr;
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__u64 mcar;
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__u32 hid0;
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/* KVM_SREGS_E_FSL_PIDn */
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__u32 pid1, pid2;
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} fsl;
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__u8 pad[256];
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} impl;
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__u32 features; /* KVM_SREGS_E_ */
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__u32 impl_id; /* KVM_SREGS_E_IMPL_ */
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__u32 update_special; /* KVM_SREGS_E_UPDATE_ */
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__u32 pir; /* read-only */
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__u64 sprg8;
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__u64 sprg9; /* E.ED */
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__u64 csrr0;
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__u64 dsrr0; /* E.ED */
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__u64 mcsrr0;
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__u32 csrr1;
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__u32 dsrr1; /* E.ED */
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__u32 mcsrr1;
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__u32 esr;
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__u64 dear;
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__u64 ivpr;
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__u64 mcivpr;
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__u64 mcsr; /* KVM_SREGS_E_UPDATE_MCSR */
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__u32 tsr; /* KVM_SREGS_E_UPDATE_TSR */
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__u32 tcr;
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__u32 decar;
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__u32 dec; /* KVM_SREGS_E_UPDATE_DEC */
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/*
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* Userspace can read TB directly, but the
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* value reported here is consistent with "dec".
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*
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* Read-only.
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*/
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__u64 tb;
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__u32 dbsr; /* KVM_SREGS_E_UPDATE_DBSR */
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__u32 dbcr[3];
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__u32 iac[4];
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__u32 dac[2];
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__u32 dvc[2];
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__u8 num_iac; /* read-only */
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__u8 num_dac; /* read-only */
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__u8 num_dvc; /* read-only */
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__u8 pad;
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__u32 epr; /* EXP */
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__u32 vrsave; /* a.k.a. USPRG0 */
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__u32 epcr; /* KVM_SREGS_E_64 */
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__u32 mas0;
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__u32 mas1;
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__u64 mas2;
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__u64 mas7_3;
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__u32 mas4;
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__u32 mas6;
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__u32 ivor_low[16]; /* IVOR0-15 */
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__u32 ivor_high[18]; /* IVOR32+, plus room to expand */
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__u32 mmucfg; /* read-only */
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__u32 eptcfg; /* E.PT, read-only */
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__u32 tlbcfg[4];/* read-only */
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__u32 tlbps[4]; /* read-only */
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__u32 eplc, epsc; /* E.PD */
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} e;
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__u8 pad[1020];
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} u;
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};
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struct kvm_fpu {
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__u64 fpr[32];
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};
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struct kvm_debug_exit_arch {
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};
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/* for KVM_SET_GUEST_DEBUG */
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struct kvm_guest_debug_arch {
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};
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#define KVM_REG_MASK 0x001f
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#define KVM_REG_EXT_MASK 0xffe0
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#define KVM_REG_GPR 0x0000
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#define KVM_REG_FPR 0x0020
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#define KVM_REG_QPR 0x0040
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#define KVM_REG_FQPR 0x0060
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#define KVM_INTERRUPT_SET -1U
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#define KVM_INTERRUPT_UNSET -2U
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#define KVM_INTERRUPT_SET_LEVEL -3U
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#define KVM_CPU_440 1
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#define KVM_CPU_E500V2 2
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#define KVM_CPU_3S_32 3
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#define KVM_CPU_3S_64 4
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/* for KVM_CAP_SPAPR_TCE */
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struct kvm_create_spapr_tce {
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__u64 liobn;
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__u32 window_size;
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};
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/* for KVM_ALLOCATE_RMA */
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struct kvm_allocate_rma {
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__u64 rma_size;
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};
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#endif /* __LINUX_KVM_POWERPC_H */
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