616dff8602
POWER8 introduced a new interrupt type called "Facility unavailable interrupt" which contains its status message in a new register called FSCR. Handle these exits and try to emulate instructions for unhandled facilities. Follow-on patches enable KVM to expose specific facilities into the guest. Signed-off-by: Alexander Graf <agraf@suse.de>
148 lines
3.6 KiB
C
148 lines
3.6 KiB
C
/*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License, version 2, as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
*
|
|
* Copyright SUSE Linux Products GmbH 2009
|
|
*
|
|
* Authors: Alexander Graf <agraf@suse.de>
|
|
*/
|
|
|
|
#ifndef __ASM_KVM_BOOK3S_ASM_H__
|
|
#define __ASM_KVM_BOOK3S_ASM_H__
|
|
|
|
/* XICS ICP register offsets */
|
|
#define XICS_XIRR 4
|
|
#define XICS_MFRR 0xc
|
|
#define XICS_IPI 2 /* interrupt source # for IPIs */
|
|
|
|
#ifdef __ASSEMBLY__
|
|
|
|
#ifdef CONFIG_KVM_BOOK3S_HANDLER
|
|
|
|
#include <asm/kvm_asm.h>
|
|
|
|
.macro DO_KVM intno
|
|
.if (\intno == BOOK3S_INTERRUPT_SYSTEM_RESET) || \
|
|
(\intno == BOOK3S_INTERRUPT_MACHINE_CHECK) || \
|
|
(\intno == BOOK3S_INTERRUPT_DATA_STORAGE) || \
|
|
(\intno == BOOK3S_INTERRUPT_INST_STORAGE) || \
|
|
(\intno == BOOK3S_INTERRUPT_DATA_SEGMENT) || \
|
|
(\intno == BOOK3S_INTERRUPT_INST_SEGMENT) || \
|
|
(\intno == BOOK3S_INTERRUPT_EXTERNAL) || \
|
|
(\intno == BOOK3S_INTERRUPT_EXTERNAL_HV) || \
|
|
(\intno == BOOK3S_INTERRUPT_ALIGNMENT) || \
|
|
(\intno == BOOK3S_INTERRUPT_PROGRAM) || \
|
|
(\intno == BOOK3S_INTERRUPT_FP_UNAVAIL) || \
|
|
(\intno == BOOK3S_INTERRUPT_DECREMENTER) || \
|
|
(\intno == BOOK3S_INTERRUPT_SYSCALL) || \
|
|
(\intno == BOOK3S_INTERRUPT_TRACE) || \
|
|
(\intno == BOOK3S_INTERRUPT_PERFMON) || \
|
|
(\intno == BOOK3S_INTERRUPT_ALTIVEC) || \
|
|
(\intno == BOOK3S_INTERRUPT_VSX)
|
|
|
|
b kvmppc_trampoline_\intno
|
|
kvmppc_resume_\intno:
|
|
|
|
.endif
|
|
.endm
|
|
|
|
#else
|
|
|
|
.macro DO_KVM intno
|
|
.endm
|
|
|
|
#endif /* CONFIG_KVM_BOOK3S_HANDLER */
|
|
|
|
#else /*__ASSEMBLY__ */
|
|
|
|
/*
|
|
* This struct goes in the PACA on 64-bit processors. It is used
|
|
* to store host state that needs to be saved when we enter a guest
|
|
* and restored when we exit, but isn't specific to any particular
|
|
* guest or vcpu. It also has some scratch fields used by the guest
|
|
* exit code.
|
|
*/
|
|
struct kvmppc_host_state {
|
|
ulong host_r1;
|
|
ulong host_r2;
|
|
ulong host_msr;
|
|
ulong vmhandler;
|
|
ulong scratch0;
|
|
ulong scratch1;
|
|
ulong scratch2;
|
|
u8 in_guest;
|
|
u8 restore_hid5;
|
|
u8 napping;
|
|
|
|
#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
|
|
u8 hwthread_req;
|
|
u8 hwthread_state;
|
|
u8 host_ipi;
|
|
u8 ptid;
|
|
struct kvm_vcpu *kvm_vcpu;
|
|
struct kvmppc_vcore *kvm_vcore;
|
|
unsigned long xics_phys;
|
|
u32 saved_xirr;
|
|
u64 dabr;
|
|
u64 host_mmcr[7]; /* MMCR 0,1,A, SIAR, SDAR, MMCR2, SIER */
|
|
u32 host_pmc[8];
|
|
u64 host_purr;
|
|
u64 host_spurr;
|
|
u64 host_dscr;
|
|
u64 dec_expires;
|
|
#endif
|
|
#ifdef CONFIG_PPC_BOOK3S_64
|
|
u64 cfar;
|
|
u64 ppr;
|
|
u64 host_fscr;
|
|
#endif
|
|
};
|
|
|
|
struct kvmppc_book3s_shadow_vcpu {
|
|
bool in_use;
|
|
ulong gpr[14];
|
|
u32 cr;
|
|
u32 xer;
|
|
ulong ctr;
|
|
ulong lr;
|
|
ulong pc;
|
|
|
|
ulong shadow_srr1;
|
|
ulong fault_dar;
|
|
u32 fault_dsisr;
|
|
u32 last_inst;
|
|
|
|
#ifdef CONFIG_PPC_BOOK3S_32
|
|
u32 sr[16]; /* Guest SRs */
|
|
|
|
struct kvmppc_host_state hstate;
|
|
#endif
|
|
|
|
#ifdef CONFIG_PPC_BOOK3S_64
|
|
u8 slb_max; /* highest used guest slb entry */
|
|
struct {
|
|
u64 esid;
|
|
u64 vsid;
|
|
} slb[64]; /* guest SLB */
|
|
u64 shadow_fscr;
|
|
#endif
|
|
};
|
|
|
|
#endif /*__ASSEMBLY__ */
|
|
|
|
/* Values for kvm_state */
|
|
#define KVM_HWTHREAD_IN_KERNEL 0
|
|
#define KVM_HWTHREAD_IN_NAP 1
|
|
#define KVM_HWTHREAD_IN_KVM 2
|
|
|
|
#endif /* __ASM_KVM_BOOK3S_ASM_H__ */
|