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Diffstat (limited to 'arch/powerpc/kvm/44x_tlb.c')
-rw-r--r--arch/powerpc/kvm/44x_tlb.c57
1 files changed, 34 insertions, 23 deletions
diff --git a/arch/powerpc/kvm/44x_tlb.c b/arch/powerpc/kvm/44x_tlb.c
index 4a16f472cc1..0deef1082e0 100644
--- a/arch/powerpc/kvm/44x_tlb.c
+++ b/arch/powerpc/kvm/44x_tlb.c
@@ -30,6 +30,7 @@
#include "timing.h"
#include "44x_tlb.h"
+#include "trace.h"
#ifndef PPC44x_TLBE_SIZE
#define PPC44x_TLBE_SIZE PPC44x_TLB_4K
@@ -46,6 +47,7 @@
#ifdef DEBUG
void kvmppc_dump_tlbs(struct kvm_vcpu *vcpu)
{
+ struct kvmppc_vcpu_44x *vcpu_44x = to_44x(vcpu);
struct kvmppc_44x_tlbe *tlbe;
int i;
@@ -220,14 +222,14 @@ gpa_t kvmppc_mmu_xlate(struct kvm_vcpu *vcpu, unsigned int gtlb_index,
int kvmppc_mmu_itlb_index(struct kvm_vcpu *vcpu, gva_t eaddr)
{
- unsigned int as = !!(vcpu->arch.msr & MSR_IS);
+ unsigned int as = !!(vcpu->arch.shared->msr & MSR_IS);
return kvmppc_44x_tlb_index(vcpu, eaddr, vcpu->arch.pid, as);
}
int kvmppc_mmu_dtlb_index(struct kvm_vcpu *vcpu, gva_t eaddr)
{
- unsigned int as = !!(vcpu->arch.msr & MSR_DS);
+ unsigned int as = !!(vcpu->arch.shared->msr & MSR_DS);
return kvmppc_44x_tlb_index(vcpu, eaddr, vcpu->arch.pid, as);
}
@@ -263,10 +265,10 @@ static void kvmppc_44x_shadow_release(struct kvmppc_vcpu_44x *vcpu_44x,
/* XXX set tlb_44x_index to stlb_index? */
- KVMTRACE_1D(STLB_INVAL, &vcpu_44x->vcpu, stlb_index, handler);
+ trace_kvm_stlb_inval(stlb_index);
}
-void kvmppc_mmu_destroy(struct kvm_vcpu *vcpu)
+void kvmppc_mmu_destroy_44x(struct kvm_vcpu *vcpu)
{
struct kvmppc_vcpu_44x *vcpu_44x = to_44x(vcpu);
int i;
@@ -315,8 +317,8 @@ void kvmppc_mmu_map(struct kvm_vcpu *vcpu, u64 gvaddr, gpa_t gpaddr,
gfn = gpaddr >> PAGE_SHIFT;
new_page = gfn_to_page(vcpu->kvm, gfn);
if (is_error_page(new_page)) {
- printk(KERN_ERR "Couldn't get guest page for gfn %lx!\n", gfn);
- kvm_release_page_clean(new_page);
+ printk(KERN_ERR "Couldn't get guest page for gfn %llx!\n",
+ (unsigned long long)gfn);
return;
}
hpaddr = page_to_phys(new_page);
@@ -352,7 +354,7 @@ void kvmppc_mmu_map(struct kvm_vcpu *vcpu, u64 gvaddr, gpa_t gpaddr,
stlbe.word1 = (hpaddr & 0xfffffc00) | ((hpaddr >> 32) & 0xf);
stlbe.word2 = kvmppc_44x_tlb_shadow_attrib(flags,
- vcpu->arch.msr & MSR_PR);
+ vcpu->arch.shared->msr & MSR_PR);
stlbe.tid = !(asid & 0xff);
/* Keep track of the reference so we can properly release it later. */
@@ -365,8 +367,8 @@ void kvmppc_mmu_map(struct kvm_vcpu *vcpu, u64 gvaddr, gpa_t gpaddr,
/* Insert shadow mapping into hardware TLB. */
kvmppc_44x_tlbe_set_modified(vcpu_44x, victim);
kvmppc_44x_tlbwe(victim, &stlbe);
- KVMTRACE_5D(STLB_WRITE, vcpu, victim, stlbe.tid, stlbe.word0, stlbe.word1,
- stlbe.word2, handler);
+ trace_kvm_stlb_write(victim, stlbe.tid, stlbe.word0, stlbe.word1,
+ stlbe.word2);
}
/* For a particular guest TLB entry, invalidate the corresponding host TLB
@@ -384,8 +386,10 @@ static void kvmppc_44x_invalidate(struct kvm_vcpu *vcpu,
}
}
-void kvmppc_mmu_priv_switch(struct kvm_vcpu *vcpu, int usermode)
+void kvmppc_mmu_msr_notify(struct kvm_vcpu *vcpu, u32 old_msr)
{
+ int usermode = vcpu->arch.shared->msr & MSR_PR;
+
vcpu->arch.shadow_pid = !usermode;
}
@@ -421,7 +425,7 @@ static int tlbe_is_host_safe(const struct kvm_vcpu *vcpu,
/* Does it match current guest AS? */
/* XXX what about IS != DS? */
- if (get_tlb_ts(tlbe) != !!(vcpu->arch.msr & MSR_IS))
+ if (get_tlb_ts(tlbe) != !!(vcpu->arch.shared->msr & MSR_IS))
return 0;
gpa = get_tlb_raddr(tlbe);
@@ -437,9 +441,10 @@ int kvmppc_44x_emul_tlbwe(struct kvm_vcpu *vcpu, u8 ra, u8 rs, u8 ws)
struct kvmppc_vcpu_44x *vcpu_44x = to_44x(vcpu);
struct kvmppc_44x_tlbe *tlbe;
unsigned int gtlb_index;
+ int idx;
- gtlb_index = vcpu->arch.gpr[ra];
- if (gtlb_index > KVM44x_GUEST_TLB_SIZE) {
+ gtlb_index = kvmppc_get_gpr(vcpu, ra);
+ if (gtlb_index >= KVM44x_GUEST_TLB_SIZE) {
printk("%s: index %d\n", __func__, gtlb_index);
kvmppc_dump_vcpu(vcpu);
return EMULATE_FAIL;
@@ -454,21 +459,23 @@ int kvmppc_44x_emul_tlbwe(struct kvm_vcpu *vcpu, u8 ra, u8 rs, u8 ws)
switch (ws) {
case PPC44x_TLB_PAGEID:
tlbe->tid = get_mmucr_stid(vcpu);
- tlbe->word0 = vcpu->arch.gpr[rs];
+ tlbe->word0 = kvmppc_get_gpr(vcpu, rs);
break;
case PPC44x_TLB_XLAT:
- tlbe->word1 = vcpu->arch.gpr[rs];
+ tlbe->word1 = kvmppc_get_gpr(vcpu, rs);
break;
case PPC44x_TLB_ATTRIB:
- tlbe->word2 = vcpu->arch.gpr[rs];
+ tlbe->word2 = kvmppc_get_gpr(vcpu, rs);
break;
default:
return EMULATE_FAIL;
}
+ idx = srcu_read_lock(&vcpu->kvm->srcu);
+
if (tlbe_is_host_safe(vcpu, tlbe)) {
gva_t eaddr;
gpa_t gpaddr;
@@ -485,8 +492,10 @@ int kvmppc_44x_emul_tlbwe(struct kvm_vcpu *vcpu, u8 ra, u8 rs, u8 ws)
kvmppc_mmu_map(vcpu, eaddr, gpaddr, gtlb_index);
}
- KVMTRACE_5D(GTLB_WRITE, vcpu, gtlb_index, tlbe->tid, tlbe->word0,
- tlbe->word1, tlbe->word2, handler);
+ srcu_read_unlock(&vcpu->kvm->srcu, idx);
+
+ trace_kvm_gtlb_write(gtlb_index, tlbe->tid, tlbe->word0, tlbe->word1,
+ tlbe->word2);
kvmppc_set_exit_type(vcpu, EMULATED_TLBWE_EXITS);
return EMULATE_DONE;
@@ -499,18 +508,20 @@ int kvmppc_44x_emul_tlbsx(struct kvm_vcpu *vcpu, u8 rt, u8 ra, u8 rb, u8 rc)
unsigned int as = get_mmucr_sts(vcpu);
unsigned int pid = get_mmucr_stid(vcpu);
- ea = vcpu->arch.gpr[rb];
+ ea = kvmppc_get_gpr(vcpu, rb);
if (ra)
- ea += vcpu->arch.gpr[ra];
+ ea += kvmppc_get_gpr(vcpu, ra);
gtlb_index = kvmppc_44x_tlb_index(vcpu, ea, pid, as);
if (rc) {
+ u32 cr = kvmppc_get_cr(vcpu);
+
if (gtlb_index < 0)
- vcpu->arch.cr &= ~0x20000000;
+ kvmppc_set_cr(vcpu, cr & ~0x20000000);
else
- vcpu->arch.cr |= 0x20000000;
+ kvmppc_set_cr(vcpu, cr | 0x20000000);
}
- vcpu->arch.gpr[rt] = gtlb_index;
+ kvmppc_set_gpr(vcpu, rt, gtlb_index);
kvmppc_set_exit_type(vcpu, EMULATED_TLBSX_EXITS);
return EMULATE_DONE;
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-05 19:45:54 +0000