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Diffstat (limited to 'arch/ia64/kvm/vcpu.c')
-rw-r--r--arch/ia64/kvm/vcpu.c80
1 files changed, 32 insertions, 48 deletions
diff --git a/arch/ia64/kvm/vcpu.c b/arch/ia64/kvm/vcpu.c
index ecd526b5532..958815c9787 100644
--- a/arch/ia64/kvm/vcpu.c
+++ b/arch/ia64/kvm/vcpu.c
@@ -112,7 +112,6 @@ void switch_to_physical_rid(struct kvm_vcpu *vcpu)
return;
}
-
void switch_to_virtual_rid(struct kvm_vcpu *vcpu)
{
unsigned long psr;
@@ -166,8 +165,6 @@ void switch_mm_mode(struct kvm_vcpu *vcpu, struct ia64_psr old_psr,
return;
}
-
-
/*
* In physical mode, insert tc/tr for region 0 and 4 uses
* RID[0] and RID[4] which is for physical mode emulation.
@@ -269,7 +266,6 @@ static inline unsigned long fph_index(struct kvm_pt_regs *regs,
return rotate_reg(96, rrb_fr, (regnum - IA64_FIRST_ROTATING_FR));
}
-
/*
* The inverse of the above: given bspstore and the number of
* registers, calculate ar.bsp.
@@ -390,7 +386,7 @@ void set_rse_reg(struct kvm_pt_regs *regs, unsigned long r1,
else
*rnat_addr = (*rnat_addr) & (~nat_mask);
- ia64_setreg(_IA64_REG_AR_BSPSTORE, bspstore);
+ ia64_setreg(_IA64_REG_AR_BSPSTORE, (unsigned long)bspstore);
ia64_setreg(_IA64_REG_AR_RNAT, rnat);
}
local_irq_restore(psr);
@@ -410,7 +406,7 @@ void getreg(unsigned long regnum, unsigned long *val,
* Now look at registers in [0-31] range and init correct UNAT
*/
addr = (unsigned long)regs;
- unat = &regs->eml_unat;;
+ unat = &regs->eml_unat;
addr += gr_info[regnum];
@@ -465,7 +461,7 @@ void setreg(unsigned long regnum, unsigned long val,
u64 vcpu_get_gr(struct kvm_vcpu *vcpu, unsigned long reg)
{
struct kvm_pt_regs *regs = vcpu_regs(vcpu);
- u64 val;
+ unsigned long val;
if (!reg)
return 0;
@@ -473,7 +469,7 @@ u64 vcpu_get_gr(struct kvm_vcpu *vcpu, unsigned long reg)
return val;
}
-void vcpu_set_gr(struct kvm_vcpu *vcpu, u64 reg, u64 value, int nat)
+void vcpu_set_gr(struct kvm_vcpu *vcpu, unsigned long reg, u64 value, int nat)
{
struct kvm_pt_regs *regs = vcpu_regs(vcpu);
long sof = (regs->cr_ifs) & 0x7f;
@@ -792,13 +788,29 @@ void vcpu_set_fpreg(struct kvm_vcpu *vcpu, unsigned long reg,
setfpreg(reg, val, regs); /* FIXME: handle NATs later*/
}
+/*
+ * The Altix RTC is mapped specially here for the vmm module
+ */
+#define SN_RTC_BASE (u64 *)(KVM_VMM_BASE+(1UL<<KVM_VMM_SHIFT))
+static long kvm_get_itc(struct kvm_vcpu *vcpu)
+{
+#if defined(CONFIG_IA64_SGI_SN2) || defined(CONFIG_IA64_GENERIC)
+ struct kvm *kvm = (struct kvm *)KVM_VM_BASE;
+
+ if (kvm->arch.is_sn2)
+ return (*SN_RTC_BASE);
+ else
+#endif
+ return ia64_getreg(_IA64_REG_AR_ITC);
+}
+
/************************************************************************
* lsapic timer
***********************************************************************/
u64 vcpu_get_itc(struct kvm_vcpu *vcpu)
{
unsigned long guest_itc;
- guest_itc = VMX(vcpu, itc_offset) + ia64_getreg(_IA64_REG_AR_ITC);
+ guest_itc = VMX(vcpu, itc_offset) + kvm_get_itc(vcpu);
if (guest_itc >= VMX(vcpu, last_itc)) {
VMX(vcpu, last_itc) = guest_itc;
@@ -811,12 +823,15 @@ static inline void vcpu_set_itm(struct kvm_vcpu *vcpu, u64 val);
static void vcpu_set_itc(struct kvm_vcpu *vcpu, u64 val)
{
struct kvm_vcpu *v;
+ struct kvm *kvm;
int i;
- long itc_offset = val - ia64_getreg(_IA64_REG_AR_ITC);
+ long itc_offset = val - kvm_get_itc(vcpu);
unsigned long vitv = VCPU(vcpu, itv);
- if (vcpu->vcpu_id == 0) {
- for (i = 0; i < KVM_MAX_VCPUS; i++) {
+ kvm = (struct kvm *)KVM_VM_BASE;
+
+ if (kvm_vcpu_is_bsp(vcpu)) {
+ for (i = 0; i < atomic_read(&kvm->online_vcpus); i++) {
v = (struct kvm_vcpu *)((char *)vcpu +
sizeof(struct kvm_vcpu_data) * i);
VMX(v, itc_offset) = itc_offset;
@@ -1039,8 +1054,6 @@ u64 vcpu_tak(struct kvm_vcpu *vcpu, u64 vadr)
return key;
}
-
-
void kvm_thash(struct kvm_vcpu *vcpu, INST64 inst)
{
unsigned long thash, vadr;
@@ -1050,7 +1063,6 @@ void kvm_thash(struct kvm_vcpu *vcpu, INST64 inst)
vcpu_set_gr(vcpu, inst.M46.r1, thash, 0);
}
-
void kvm_ttag(struct kvm_vcpu *vcpu, INST64 inst)
{
unsigned long tag, vadr;
@@ -1060,7 +1072,7 @@ void kvm_ttag(struct kvm_vcpu *vcpu, INST64 inst)
vcpu_set_gr(vcpu, inst.M46.r1, tag, 0);
}
-int vcpu_tpa(struct kvm_vcpu *vcpu, u64 vadr, u64 *padr)
+int vcpu_tpa(struct kvm_vcpu *vcpu, u64 vadr, unsigned long *padr)
{
struct thash_data *data;
union ia64_isr visr, pt_isr;
@@ -1131,7 +1143,6 @@ int vcpu_tpa(struct kvm_vcpu *vcpu, u64 vadr, u64 *padr)
return IA64_NO_FAULT;
}
-
int kvm_tpa(struct kvm_vcpu *vcpu, INST64 inst)
{
unsigned long r1, r3;
@@ -1154,7 +1165,6 @@ void kvm_tak(struct kvm_vcpu *vcpu, INST64 inst)
vcpu_set_gr(vcpu, inst.M46.r1, r1, 0);
}
-
/************************************
* Insert/Purge translation register/cache
************************************/
@@ -1385,7 +1395,6 @@ void kvm_mov_to_ar_reg(struct kvm_vcpu *vcpu, INST64 inst)
vcpu_set_itc(vcpu, r2);
}
-
void kvm_mov_from_ar_reg(struct kvm_vcpu *vcpu, INST64 inst)
{
unsigned long r1;
@@ -1393,8 +1402,9 @@ void kvm_mov_from_ar_reg(struct kvm_vcpu *vcpu, INST64 inst)
r1 = vcpu_get_itc(vcpu);
vcpu_set_gr(vcpu, inst.M31.r1, r1, 0);
}
+
/**************************************************************************
- struct kvm_vcpu*protection key register access routines
+ struct kvm_vcpu protection key register access routines
**************************************************************************/
unsigned long vcpu_get_pkr(struct kvm_vcpu *vcpu, unsigned long reg)
@@ -1407,20 +1417,6 @@ void vcpu_set_pkr(struct kvm_vcpu *vcpu, unsigned long reg, unsigned long val)
ia64_set_pkr(reg, val);
}
-
-unsigned long vcpu_get_itir_on_fault(struct kvm_vcpu *vcpu, unsigned long ifa)
-{
- union ia64_rr rr, rr1;
-
- rr.val = vcpu_get_rr(vcpu, ifa);
- rr1.val = 0;
- rr1.ps = rr.ps;
- rr1.rid = rr.rid;
- return (rr1.val);
-}
-
-
-
/********************************
* Moves to privileged registers
********************************/
@@ -1464,8 +1460,6 @@ unsigned long vcpu_set_rr(struct kvm_vcpu *vcpu, unsigned long reg,
return (IA64_NO_FAULT);
}
-
-
void kvm_mov_to_rr(struct kvm_vcpu *vcpu, INST64 inst)
{
unsigned long r3, r2;
@@ -1510,8 +1504,6 @@ void kvm_mov_to_pkr(struct kvm_vcpu *vcpu, INST64 inst)
vcpu_set_pkr(vcpu, r3, r2);
}
-
-
void kvm_mov_from_rr(struct kvm_vcpu *vcpu, INST64 inst)
{
unsigned long r3, r1;
@@ -1557,7 +1549,6 @@ void kvm_mov_from_pmc(struct kvm_vcpu *vcpu, INST64 inst)
vcpu_set_gr(vcpu, inst.M43.r1, r1, 0);
}
-
unsigned long vcpu_get_cpuid(struct kvm_vcpu *vcpu, unsigned long reg)
{
/* FIXME: This could get called as a result of a rsvd-reg fault */
@@ -1609,7 +1600,6 @@ unsigned long kvm_mov_to_cr(struct kvm_vcpu *vcpu, INST64 inst)
return 0;
}
-
unsigned long kvm_mov_from_cr(struct kvm_vcpu *vcpu, INST64 inst)
{
unsigned long tgt = inst.M33.r1;
@@ -1633,8 +1623,6 @@ unsigned long kvm_mov_from_cr(struct kvm_vcpu *vcpu, INST64 inst)
return 0;
}
-
-
void vcpu_set_psr(struct kvm_vcpu *vcpu, unsigned long val)
{
@@ -1651,8 +1639,8 @@ void vcpu_set_psr(struct kvm_vcpu *vcpu, unsigned long val)
* Otherwise panic
*/
if (val & (IA64_PSR_PK | IA64_PSR_IS | IA64_PSR_VM))
- panic_vm(vcpu, "Only support guests with vpsr.pk =0 \
- & vpsr.is=0\n");
+ panic_vm(vcpu, "Only support guests with vpsr.pk =0 "
+ "& vpsr.is=0\n");
/*
* For those IA64_PSR bits: id/da/dd/ss/ed/ia
@@ -1776,9 +1764,6 @@ void vcpu_bsw1(struct kvm_vcpu *vcpu)
}
}
-
-
-
void vcpu_rfi(struct kvm_vcpu *vcpu)
{
unsigned long ifs, psr;
@@ -1796,7 +1781,6 @@ void vcpu_rfi(struct kvm_vcpu *vcpu)
regs->cr_iip = VCPU(vcpu, iip);
}
-
/*
VPSR can't keep track of below bits of guest PSR
This function gets guest PSR
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-06 15:37:41 +0000