--- /dev/null
+/*
+ * 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 IBM Corp. 2008
+ *
+ * Authors: Hollis Blanchard <hollisb@us.ibm.com>
+ */
+
+#ifndef __ASM_44X_H__
+#define __ASM_44X_H__
+
+#include <linux/kvm_host.h>
+
+/* XXX Can't include mmu-44x.h because it redefines struct mm_context. */
+#define PPC44x_TLB_SIZE 64
+
+struct kvmppc_vcpu_44x {
+ /* Unmodified copy of the guest's TLB. */
+ struct kvmppc_44x_tlbe guest_tlb[PPC44x_TLB_SIZE];
+ /* TLB that's actually used when the guest is running. */
+ struct kvmppc_44x_tlbe shadow_tlb[PPC44x_TLB_SIZE];
+ /* Pages which are referenced in the shadow TLB. */
+ struct page *shadow_pages[PPC44x_TLB_SIZE];
+
+ /* Track which TLB entries we've modified in the current exit. */
+ u8 shadow_tlb_mod[PPC44x_TLB_SIZE];
+
+ struct kvm_vcpu vcpu;
+};
+
+static inline struct kvmppc_vcpu_44x *to_44x(struct kvm_vcpu *vcpu)
+{
+ return container_of(vcpu, struct kvmppc_vcpu_44x, vcpu);
+}
+
+#endif /* __ASM_44X_H__ */
struct kvm_arch {
};
-/* XXX Can't include mmu-44x.h because it redefines struct mm_context. */
-#define PPC44x_TLB_SIZE 64
-
struct kvm_vcpu_arch {
- /* Unmodified copy of the guest's TLB. */
- struct kvmppc_44x_tlbe guest_tlb[PPC44x_TLB_SIZE];
- /* TLB that's actually used when the guest is running. */
- struct kvmppc_44x_tlbe shadow_tlb[PPC44x_TLB_SIZE];
- /* Pages which are referenced in the shadow TLB. */
- struct page *shadow_pages[PPC44x_TLB_SIZE];
-
- /* Track which TLB entries we've modified in the current exit. */
- u8 shadow_tlb_mod[PPC44x_TLB_SIZE];
-
u32 host_stack;
u32 host_pid;
u32 host_dbcr0;
/* Core-specific hooks */
+extern struct kvm_vcpu *kvmppc_core_vcpu_create(struct kvm *kvm,
+ unsigned int id);
+extern void kvmppc_core_vcpu_free(struct kvm_vcpu *vcpu);
extern int kvmppc_core_vcpu_setup(struct kvm_vcpu *vcpu);
extern int kvmppc_core_check_processor_compat(void);
extern int kvmppc_core_vcpu_translate(struct kvm_vcpu *vcpu,
extern int kvmppc_core_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, int rs);
extern int kvmppc_core_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, int rt);
+extern int kvmppc_booke_init(void);
+extern void kvmppc_booke_exit(void);
+
extern void kvmppc_core_destroy_mmu(struct kvm_vcpu *vcpu);
#endif /* __POWERPC_KVM_PPC_H__ */
#include <linux/mm.h>
#include <linux/suspend.h>
#include <linux/hrtimer.h>
-#ifdef CONFIG_KVM
-#include <linux/kvm_host.h>
-#endif
#ifdef CONFIG_PPC64
#include <linux/time.h>
#include <linux/hardirq.h>
#ifdef CONFIG_PPC_ISERIES
#include <asm/iseries/alpaca.h>
#endif
+#ifdef CONFIG_KVM
+#include <asm/kvm_44x.h>
+#endif
#if defined(CONFIG_BOOKE) || defined(CONFIG_40x)
#include "head_booke.h"
#ifdef CONFIG_KVM
DEFINE(TLBE_BYTES, sizeof(struct kvmppc_44x_tlbe));
+ DEFINE(VCPU_TO_44X, offsetof(struct kvmppc_vcpu_44x, vcpu));
+ DEFINE(VCPU44x_SHADOW_TLB,
+ offsetof(struct kvmppc_vcpu_44x, shadow_tlb));
+ DEFINE(VCPU44x_SHADOW_MOD,
+ offsetof(struct kvmppc_vcpu_44x, shadow_tlb_mod));
+
DEFINE(VCPU_HOST_STACK, offsetof(struct kvm_vcpu, arch.host_stack));
DEFINE(VCPU_HOST_PID, offsetof(struct kvm_vcpu, arch.host_pid));
- DEFINE(VCPU_SHADOW_TLB, offsetof(struct kvm_vcpu, arch.shadow_tlb));
- DEFINE(VCPU_SHADOW_MOD, offsetof(struct kvm_vcpu, arch.shadow_tlb_mod));
DEFINE(VCPU_GPRS, offsetof(struct kvm_vcpu, arch.gpr));
DEFINE(VCPU_LR, offsetof(struct kvm_vcpu, arch.lr));
DEFINE(VCPU_CR, offsetof(struct kvm_vcpu, arch.cr));
*/
#include <linux/kvm_host.h>
+#include <linux/err.h>
+
#include <asm/reg.h>
#include <asm/cputable.h>
#include <asm/tlbflush.h>
+#include <asm/kvm_44x.h>
+#include <asm/kvm_ppc.h>
#include "44x_tlb.h"
int kvmppc_core_vcpu_setup(struct kvm_vcpu *vcpu)
{
- struct kvmppc_44x_tlbe *tlbe = &vcpu->arch.guest_tlb[0];
+ struct kvmppc_vcpu_44x *vcpu_44x = to_44x(vcpu);
+ struct kvmppc_44x_tlbe *tlbe = &vcpu_44x->guest_tlb[0];
tlbe->tid = 0;
tlbe->word0 = PPC44x_TLB_16M | PPC44x_TLB_VALID;
int kvmppc_core_vcpu_translate(struct kvm_vcpu *vcpu,
struct kvm_translation *tr)
{
+ struct kvmppc_vcpu_44x *vcpu_44x = to_44x(vcpu);
struct kvmppc_44x_tlbe *gtlbe;
int index;
gva_t eaddr;
return 0;
}
- gtlbe = &vcpu->arch.guest_tlb[index];
+ gtlbe = &vcpu_44x->guest_tlb[index];
tr->physical_address = tlb_xlate(gtlbe, eaddr);
/* XXX what does "writeable" and "usermode" even mean? */
return 0;
}
+
+struct kvm_vcpu *kvmppc_core_vcpu_create(struct kvm *kvm, unsigned int id)
+{
+ struct kvmppc_vcpu_44x *vcpu_44x;
+ struct kvm_vcpu *vcpu;
+ int err;
+
+ vcpu_44x = kmem_cache_zalloc(kvm_vcpu_cache, GFP_KERNEL);
+ if (!vcpu_44x) {
+ err = -ENOMEM;
+ goto out;
+ }
+
+ vcpu = &vcpu_44x->vcpu;
+ err = kvm_vcpu_init(vcpu, kvm, id);
+ if (err)
+ goto free_vcpu;
+
+ return vcpu;
+
+free_vcpu:
+ kmem_cache_free(kvm_vcpu_cache, vcpu_44x);
+out:
+ return ERR_PTR(err);
+}
+
+void kvmppc_core_vcpu_free(struct kvm_vcpu *vcpu)
+{
+ struct kvmppc_vcpu_44x *vcpu_44x = to_44x(vcpu);
+
+ kvm_vcpu_uninit(vcpu);
+ kmem_cache_free(kvm_vcpu_cache, vcpu_44x);
+}
+
+static int kvmppc_44x_init(void)
+{
+ int r;
+
+ r = kvmppc_booke_init();
+ if (r)
+ return r;
+
+ return kvm_init(NULL, sizeof(struct kvmppc_vcpu_44x), THIS_MODULE);
+}
+
+static void kvmppc_44x_exit(void)
+{
+ kvmppc_booke_exit();
+}
+
+module_init(kvmppc_44x_init);
+module_exit(kvmppc_44x_exit);
#include <linux/highmem.h>
#include <asm/mmu-44x.h>
#include <asm/kvm_ppc.h>
+#include <asm/kvm_44x.h>
#include "44x_tlb.h"
"nr", "tid", "word0", "word1", "word2");
for (i = 0; i < PPC44x_TLB_SIZE; i++) {
- tlbe = &vcpu->arch.guest_tlb[i];
+ tlbe = &vcpu_44x->guest_tlb[i];
if (tlbe->word0 & PPC44x_TLB_VALID)
printk(" G%2d | %02X | %08X | %08X | %08X |\n",
i, tlbe->tid, tlbe->word0, tlbe->word1,
}
for (i = 0; i < PPC44x_TLB_SIZE; i++) {
- tlbe = &vcpu->arch.shadow_tlb[i];
+ tlbe = &vcpu_44x->shadow_tlb[i];
if (tlbe->word0 & PPC44x_TLB_VALID)
printk(" S%2d | %02X | %08X | %08X | %08X |\n",
i, tlbe->tid, tlbe->word0, tlbe->word1,
int kvmppc_44x_tlb_index(struct kvm_vcpu *vcpu, gva_t eaddr, unsigned int pid,
unsigned int as)
{
+ struct kvmppc_vcpu_44x *vcpu_44x = to_44x(vcpu);
int i;
/* XXX Replace loop with fancy data structures. */
for (i = 0; i < PPC44x_TLB_SIZE; i++) {
- struct kvmppc_44x_tlbe *tlbe = &vcpu->arch.guest_tlb[i];
+ struct kvmppc_44x_tlbe *tlbe = &vcpu_44x->guest_tlb[i];
unsigned int tid;
if (eaddr < get_tlb_eaddr(tlbe))
struct kvmppc_44x_tlbe *kvmppc_44x_itlb_search(struct kvm_vcpu *vcpu,
gva_t eaddr)
{
+ struct kvmppc_vcpu_44x *vcpu_44x = to_44x(vcpu);
unsigned int as = !!(vcpu->arch.msr & MSR_IS);
unsigned int index;
index = kvmppc_44x_tlb_index(vcpu, eaddr, vcpu->arch.pid, as);
if (index == -1)
return NULL;
- return &vcpu->arch.guest_tlb[index];
+ return &vcpu_44x->guest_tlb[index];
}
struct kvmppc_44x_tlbe *kvmppc_44x_dtlb_search(struct kvm_vcpu *vcpu,
gva_t eaddr)
{
+ struct kvmppc_vcpu_44x *vcpu_44x = to_44x(vcpu);
unsigned int as = !!(vcpu->arch.msr & MSR_DS);
unsigned int index;
index = kvmppc_44x_tlb_index(vcpu, eaddr, vcpu->arch.pid, as);
if (index == -1)
return NULL;
- return &vcpu->arch.guest_tlb[index];
+ return &vcpu_44x->guest_tlb[index];
}
static int kvmppc_44x_tlbe_is_writable(struct kvmppc_44x_tlbe *tlbe)
static void kvmppc_44x_shadow_release(struct kvm_vcpu *vcpu,
unsigned int index)
{
- struct kvmppc_44x_tlbe *stlbe = &vcpu->arch.shadow_tlb[index];
- struct page *page = vcpu->arch.shadow_pages[index];
+ struct kvmppc_vcpu_44x *vcpu_44x = to_44x(vcpu);
+ struct kvmppc_44x_tlbe *stlbe = &vcpu_44x->shadow_tlb[index];
+ struct page *page = vcpu_44x->shadow_pages[index];
if (get_tlb_v(stlbe)) {
if (kvmppc_44x_tlbe_is_writable(stlbe))
void kvmppc_tlbe_set_modified(struct kvm_vcpu *vcpu, unsigned int i)
{
- vcpu->arch.shadow_tlb_mod[i] = 1;
+ struct kvmppc_vcpu_44x *vcpu_44x = to_44x(vcpu);
+
+ vcpu_44x->shadow_tlb_mod[i] = 1;
}
/* Caller must ensure that the specified guest TLB entry is safe to insert into
void kvmppc_mmu_map(struct kvm_vcpu *vcpu, u64 gvaddr, gfn_t gfn, u64 asid,
u32 flags)
{
+ struct kvmppc_vcpu_44x *vcpu_44x = to_44x(vcpu);
struct page *new_page;
struct kvmppc_44x_tlbe *stlbe;
hpa_t hpaddr;
victim = kvmppc_tlb_44x_pos++;
if (kvmppc_tlb_44x_pos > tlb_44x_hwater)
kvmppc_tlb_44x_pos = 0;
- stlbe = &vcpu->arch.shadow_tlb[victim];
+ stlbe = &vcpu_44x->shadow_tlb[victim];
/* Get reference to new page. */
new_page = gfn_to_page(vcpu->kvm, gfn);
/* Drop reference to old page. */
kvmppc_44x_shadow_release(vcpu, victim);
- vcpu->arch.shadow_pages[victim] = new_page;
+ vcpu_44x->shadow_pages[victim] = new_page;
/* XXX Make sure (va, size) doesn't overlap any other
* entries. 440x6 user manual says the result would be
static void kvmppc_mmu_invalidate(struct kvm_vcpu *vcpu, gva_t eaddr,
gva_t eend, u32 asid)
{
+ struct kvmppc_vcpu_44x *vcpu_44x = to_44x(vcpu);
unsigned int pid = !(asid & 0xff);
int i;
/* XXX Replace loop with fancy data structures. */
for (i = 0; i <= tlb_44x_hwater; i++) {
- struct kvmppc_44x_tlbe *stlbe = &vcpu->arch.shadow_tlb[i];
+ struct kvmppc_44x_tlbe *stlbe = &vcpu_44x->shadow_tlb[i];
unsigned int tid;
if (!get_tlb_v(stlbe))
* switching address spaces. */
void kvmppc_mmu_priv_switch(struct kvm_vcpu *vcpu, int usermode)
{
+ struct kvmppc_vcpu_44x *vcpu_44x = to_44x(vcpu);
int i;
if (vcpu->arch.swap_pid) {
/* XXX Replace loop with fancy data structures. */
for (i = 0; i <= tlb_44x_hwater; i++) {
- struct kvmppc_44x_tlbe *stlbe = &vcpu->arch.shadow_tlb[i];
+ struct kvmppc_44x_tlbe *stlbe = &vcpu_44x->shadow_tlb[i];
/* Future optimization: clear only userspace mappings. */
kvmppc_44x_shadow_release(vcpu, i);
int kvmppc_44x_emul_tlbwe(struct kvm_vcpu *vcpu, u8 ra, u8 rs, u8 ws)
{
+ struct kvmppc_vcpu_44x *vcpu_44x = to_44x(vcpu);
u64 eaddr;
u64 raddr;
u64 asid;
return EMULATE_FAIL;
}
- tlbe = &vcpu->arch.guest_tlb[index];
+ tlbe = &vcpu_44x->guest_tlb[index];
/* Invalidate shadow mappings for the about-to-be-clobbered TLBE. */
if (tlbe->word0 & PPC44x_TLB_VALID) {
return kvmppc_core_vcpu_translate(vcpu, tr);
}
-static int kvmppc_booke_init(void)
+int kvmppc_booke_init(void)
{
unsigned long ivor[16];
unsigned long max_ivor = 0;
flush_icache_range(kvmppc_booke_handlers,
kvmppc_booke_handlers + max_ivor + kvmppc_handler_len);
- return kvm_init(NULL, sizeof(struct kvm_vcpu), THIS_MODULE);
+ return 0;
}
-static void __exit kvmppc_booke_exit(void)
+void __exit kvmppc_booke_exit(void)
{
free_pages(kvmppc_booke_handlers, VCPU_SIZE_ORDER);
kvm_exit();
}
-
-module_init(kvmppc_booke_init)
-module_exit(kvmppc_booke_exit)
lis r5, tlb_44x_hwater@ha
lwz r5, tlb_44x_hwater@l(r5)
mtctr r5
- addi r9, r4, VCPU_SHADOW_TLB
- addi r5, r4, VCPU_SHADOW_MOD
+ addi r9, r4, -VCPU_TO_44X + VCPU44x_SHADOW_TLB
+ addi r5, r4, -VCPU_TO_44X + VCPU44x_SHADOW_MOD
li r3, 0
1:
lbzx r7, r3, r5
/* Clear bitmap of modified TLB entries */
li r5, PPC44x_TLB_SIZE>>2
mtctr r5
- addi r5, r4, VCPU_SHADOW_MOD - 4
+ addi r5, r4, -VCPU_TO_44X + VCPU44x_SHADOW_MOD - 4
li r6, 0
1:
stwu r6, 4(r5)
struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm, unsigned int id)
{
- struct kvm_vcpu *vcpu;
- int err;
-
- vcpu = kmem_cache_zalloc(kvm_vcpu_cache, GFP_KERNEL);
- if (!vcpu) {
- err = -ENOMEM;
- goto out;
- }
-
- err = kvm_vcpu_init(vcpu, kvm, id);
- if (err)
- goto free_vcpu;
-
- return vcpu;
-
-free_vcpu:
- kmem_cache_free(kvm_vcpu_cache, vcpu);
-out:
- return ERR_PTR(err);
+ return kvmppc_core_vcpu_create(kvm, id);
}
void kvm_arch_vcpu_free(struct kvm_vcpu *vcpu)
{
- kvm_vcpu_uninit(vcpu);
- kmem_cache_free(kvm_vcpu_cache, vcpu);
+ kvmppc_core_vcpu_free(vcpu);
}
void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu)
projects / linux-2.6-omap-h63xx.git / commitdiff