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authorLinus Torvalds <torvalds@linux-foundation.org>2023-04-28 16:24:32 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2023-04-28 16:24:32 -0700
commit70cc1b5307e8ee3076fdf2ecbeb89eb973aa0ff7 (patch)
tree6928e81a009668e6af4ca7408db2c35549a0f433 /arch/powerpc/kvm/booke.c
parent5ea8abf589f2974d65460a1ffa0c303763e958da (diff)
parent169f8997968ab620d750d9a45e15c5288d498356 (diff)
Merge tag 'powerpc-6.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc updates from Michael Ellerman: - Add support for building the kernel using PC-relative addressing on Power10. - Allow HV KVM guests on Power10 to use prefixed instructions. - Unify support for the P2020 CPU (85xx) into a single machine description. - Always build the 64-bit kernel with 128-bit long double. - Drop support for several obsolete 2000's era development boards as identified by Paul Gortmaker. - A series fixing VFIO on Power since some generic changes. - Various other small features and fixes. Thanks to Alexey Kardashevskiy, Andrew Donnellan, Benjamin Gray, Bo Liu, Christophe Leroy, Dan Carpenter, David Binderman, Ira Weiny, Joel Stanley, Kajol Jain, Kautuk Consul, Liang He, Luis Chamberlain, Masahiro Yamada, Michael Neuling, Nathan Chancellor, Nathan Lynch, Nicholas Miehlbradt, Nicholas Piggin, Nick Desaulniers, Nysal Jan K.A, Pali Rohár, Paul Gortmaker, Paul Mackerras, Petr Vaněk, Randy Dunlap, Rob Herring, Sachin Sant, Sean Christopherson, Segher Boessenkool, and Timothy Pearson. * tag 'powerpc-6.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (156 commits) powerpc/64s: Disable pcrel code model on Clang powerpc: Fix merge conflict between pcrel and copy_thread changes powerpc/configs/powernv: Add IGB=y powerpc/configs/64s: Drop JFS Filesystem powerpc/configs/64s: Use EXT4 to mount EXT2 filesystems powerpc/configs: Make pseries_defconfig an alias for ppc64le_guest powerpc/configs: Make pseries_le an alias for ppc64le_guest powerpc/configs: Incorporate generic kvm_guest.config into guest configs powerpc/configs: Add IBMVETH=y and IBMVNIC=y to guest configs powerpc/configs/64s: Enable Device Mapper options powerpc/configs/64s: Enable PSTORE powerpc/configs/64s: Enable VLAN support powerpc/configs/64s: Enable BLK_DEV_NVME powerpc/configs/64s: Drop REISERFS powerpc/configs/64s: Use SHA512 for module signatures powerpc/configs/64s: Enable IO_STRICT_DEVMEM powerpc/configs/64s: Enable SCHEDSTATS powerpc/configs/64s: Enable DEBUG_VM & other options powerpc/configs/64s: Enable EMULATED_STATS powerpc/configs/64s: Enable KUNIT and most tests ...
Diffstat (limited to 'arch/powerpc/kvm/booke.c')
-rw-r--r--arch/powerpc/kvm/booke.c30
1 files changed, 19 insertions, 11 deletions
diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c
index 01adffb24667..6a5be025a8af 100644
--- a/arch/powerpc/kvm/booke.c
+++ b/arch/powerpc/kvm/booke.c
@@ -283,9 +283,10 @@ void kvmppc_core_queue_dtlb_miss(struct kvm_vcpu *vcpu,
kvmppc_booke_queue_irqprio(vcpu, BOOKE_IRQPRIO_DTLB_MISS);
}
-void kvmppc_core_queue_data_storage(struct kvm_vcpu *vcpu,
+void kvmppc_core_queue_data_storage(struct kvm_vcpu *vcpu, ulong srr1_flags,
ulong dear_flags, ulong esr_flags)
{
+ WARN_ON_ONCE(srr1_flags);
vcpu->arch.queued_dear = dear_flags;
vcpu->arch.queued_esr = esr_flags;
kvmppc_booke_queue_irqprio(vcpu, BOOKE_IRQPRIO_DATA_STORAGE);
@@ -316,14 +317,16 @@ void kvmppc_core_queue_program(struct kvm_vcpu *vcpu, ulong esr_flags)
kvmppc_booke_queue_irqprio(vcpu, BOOKE_IRQPRIO_PROGRAM);
}
-void kvmppc_core_queue_fpunavail(struct kvm_vcpu *vcpu)
+void kvmppc_core_queue_fpunavail(struct kvm_vcpu *vcpu, ulong srr1_flags)
{
+ WARN_ON_ONCE(srr1_flags);
kvmppc_booke_queue_irqprio(vcpu, BOOKE_IRQPRIO_FP_UNAVAIL);
}
#ifdef CONFIG_ALTIVEC
-void kvmppc_core_queue_vec_unavail(struct kvm_vcpu *vcpu)
+void kvmppc_core_queue_vec_unavail(struct kvm_vcpu *vcpu, ulong srr1_flags)
{
+ WARN_ON_ONCE(srr1_flags);
kvmppc_booke_queue_irqprio(vcpu, BOOKE_IRQPRIO_ALTIVEC_UNAVAIL);
}
#endif
@@ -623,7 +626,7 @@ static void arm_next_watchdog(struct kvm_vcpu *vcpu)
spin_unlock_irqrestore(&vcpu->arch.wdt_lock, flags);
}
-void kvmppc_watchdog_func(struct timer_list *t)
+static void kvmppc_watchdog_func(struct timer_list *t)
{
struct kvm_vcpu *vcpu = from_timer(vcpu, t, arch.wdt_timer);
u32 tsr, new_tsr;
@@ -841,7 +844,7 @@ static int emulation_exit(struct kvm_vcpu *vcpu)
return RESUME_GUEST;
case EMULATE_FAIL:
- printk(KERN_CRIT "%s: emulation at %lx failed (%08x)\n",
+ printk(KERN_CRIT "%s: emulation at %lx failed (%08lx)\n",
__func__, vcpu->arch.regs.nip, vcpu->arch.last_inst);
/* For debugging, encode the failing instruction and
* report it to userspace. */
@@ -1000,7 +1003,7 @@ static int kvmppc_resume_inst_load(struct kvm_vcpu *vcpu,
}
}
-/**
+/*
* kvmppc_handle_exit
*
* Return value is in the form (errcode<<2 | RESUME_FLAG_HOST | RESUME_FLAG_NV)
@@ -1012,6 +1015,7 @@ int kvmppc_handle_exit(struct kvm_vcpu *vcpu, unsigned int exit_nr)
int s;
int idx;
u32 last_inst = KVM_INST_FETCH_FAILED;
+ ppc_inst_t pinst;
enum emulation_result emulated = EMULATE_DONE;
/* Fix irq state (pairs with kvmppc_fix_ee_before_entry()) */
@@ -1031,12 +1035,15 @@ int kvmppc_handle_exit(struct kvm_vcpu *vcpu, unsigned int exit_nr)
case BOOKE_INTERRUPT_DATA_STORAGE:
case BOOKE_INTERRUPT_DTLB_MISS:
case BOOKE_INTERRUPT_HV_PRIV:
- emulated = kvmppc_get_last_inst(vcpu, INST_GENERIC, &last_inst);
+ emulated = kvmppc_get_last_inst(vcpu, INST_GENERIC, &pinst);
+ last_inst = ppc_inst_val(pinst);
break;
case BOOKE_INTERRUPT_PROGRAM:
/* SW breakpoints arrive as illegal instructions on HV */
- if (vcpu->guest_debug & KVM_GUESTDBG_USE_SW_BP)
- emulated = kvmppc_get_last_inst(vcpu, INST_GENERIC, &last_inst);
+ if (vcpu->guest_debug & KVM_GUESTDBG_USE_SW_BP) {
+ emulated = kvmppc_get_last_inst(vcpu, INST_GENERIC, &pinst);
+ last_inst = ppc_inst_val(pinst);
+ }
break;
default:
break;
@@ -1225,7 +1232,7 @@ int kvmppc_handle_exit(struct kvm_vcpu *vcpu, unsigned int exit_nr)
#endif
case BOOKE_INTERRUPT_DATA_STORAGE:
- kvmppc_core_queue_data_storage(vcpu, vcpu->arch.fault_dear,
+ kvmppc_core_queue_data_storage(vcpu, 0, vcpu->arch.fault_dear,
vcpu->arch.fault_esr);
kvmppc_account_exit(vcpu, DSI_EXITS);
r = RESUME_GUEST;
@@ -1946,7 +1953,8 @@ static int kvmppc_booke_add_watchpoint(struct debug_reg *dbg_reg, uint64_t addr,
dbg_reg->dbcr0 |= DBCR0_IDM;
return 0;
}
-void kvm_guest_protect_msr(struct kvm_vcpu *vcpu, ulong prot_bitmap, bool set)
+static void kvm_guest_protect_msr(struct kvm_vcpu *vcpu, ulong prot_bitmap,
+ bool set)
{
/* XXX: Add similar MSR protection for BookE-PR */
#ifdef CONFIG_KVM_BOOKE_HV