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Message-Id: <20170519154746.29389-9-jgross@suse.com>
Date: Fri, 19 May 2017 17:47:44 +0200
From: Juergen Gross <jgross@...e.com>
To: linux-kernel@...r.kernel.org, xen-devel@...ts.xenproject.org,
x86@...nel.org, virtualization@...ts.linux-foundation.org
Cc: jeremy@...p.org, chrisw@...s-sol.org, akataria@...are.com,
rusty@...tcorp.com.au, boris.ostrovsky@...cle.com, hpa@...or.com,
tglx@...utronix.de, mingo@...hat.com,
Juergen Gross <jgross@...e.com>
Subject: [PATCH 08/10] paravirt: split pv_mmu_ops for support of PARAVIRT_FULL
Move functions needed for fully paravirtualized guests only into a new
structure pvfull_mmu_ops in paravirt_types_full.h, paravirt_full.h and
the associated vector into paravirt_full.c.
.flush_tlb_others is left in pv_mmu_ops as hyperv support will use it
soon.
Signed-off-by: Juergen Gross <jgross@...e.com>
---
arch/x86/include/asm/fixmap.h | 2 +-
arch/x86/include/asm/mmu_context.h | 4 +-
arch/x86/include/asm/paravirt.h | 442 ++---------------------------
arch/x86/include/asm/paravirt_full.h | 422 +++++++++++++++++++++++++++
arch/x86/include/asm/paravirt_types.h | 117 +-------
arch/x86/include/asm/paravirt_types_full.h | 116 ++++++++
arch/x86/include/asm/pgalloc.h | 2 +-
arch/x86/include/asm/pgtable.h | 8 +-
arch/x86/include/asm/special_insns.h | 6 +-
arch/x86/include/asm/tlbflush.h | 2 +-
arch/x86/kernel/asm-offsets.c | 4 +-
arch/x86/kernel/head_64.S | 2 +-
arch/x86/kernel/paravirt.c | 171 -----------
arch/x86/kernel/paravirt_full.c | 176 ++++++++++++
arch/x86/kernel/paravirt_patch_32.c | 12 +-
arch/x86/kernel/paravirt_patch_64.c | 16 +-
arch/x86/lguest/boot.c | 36 +--
arch/x86/xen/enlighten_pv.c | 8 +-
arch/x86/xen/mmu_pv.c | 34 +--
19 files changed, 797 insertions(+), 783 deletions(-)
diff --git a/arch/x86/include/asm/fixmap.h b/arch/x86/include/asm/fixmap.h
index b65155cc3760..dfef874cb9d6 100644
--- a/arch/x86/include/asm/fixmap.h
+++ b/arch/x86/include/asm/fixmap.h
@@ -149,7 +149,7 @@ void __native_set_fixmap(enum fixed_addresses idx, pte_t pte);
void native_set_fixmap(enum fixed_addresses idx,
phys_addr_t phys, pgprot_t flags);
-#ifndef CONFIG_PARAVIRT
+#ifndef CONFIG_PARAVIRT_FULL
static inline void __set_fixmap(enum fixed_addresses idx,
phys_addr_t phys, pgprot_t flags)
{
diff --git a/arch/x86/include/asm/mmu_context.h b/arch/x86/include/asm/mmu_context.h
index 68b329d77b3a..b38431024463 100644
--- a/arch/x86/include/asm/mmu_context.h
+++ b/arch/x86/include/asm/mmu_context.h
@@ -12,12 +12,12 @@
#include <asm/tlbflush.h>
#include <asm/paravirt.h>
#include <asm/mpx.h>
-#ifndef CONFIG_PARAVIRT
+#ifndef CONFIG_PARAVIRT_FULL
static inline void paravirt_activate_mm(struct mm_struct *prev,
struct mm_struct *next)
{
}
-#endif /* !CONFIG_PARAVIRT */
+#endif /* !CONFIG_PARAVIRT_FULL */
#ifdef CONFIG_PERF_EVENTS
extern struct static_key rdpmc_always_available;
diff --git a/arch/x86/include/asm/paravirt.h b/arch/x86/include/asm/paravirt.h
index f1680e70162b..3b9960a5de4a 100644
--- a/arch/x86/include/asm/paravirt.h
+++ b/arch/x86/include/asm/paravirt.h
@@ -17,28 +17,15 @@
#ifdef CONFIG_PARAVIRT_FULL
#include <asm/paravirt_full.h>
+#else
+
+static inline enum paravirt_lazy_mode paravirt_get_lazy_mode(void)
+{
+ return PARAVIRT_LAZY_NONE;
+}
+
#endif
-static inline unsigned long read_cr2(void)
-{
- return PVOP_CALL0(unsigned long, pv_mmu_ops.read_cr2);
-}
-
-static inline void write_cr2(unsigned long x)
-{
- PVOP_VCALL1(pv_mmu_ops.write_cr2, x);
-}
-
-static inline unsigned long read_cr3(void)
-{
- return PVOP_CALL0(unsigned long, pv_mmu_ops.read_cr3);
-}
-
-static inline void write_cr3(unsigned long x)
-{
- PVOP_VCALL1(pv_mmu_ops.write_cr3, x);
-}
-
#define get_kernel_rpl() (pv_info.kernel_rpl)
static inline unsigned long long paravirt_sched_clock(void)
@@ -66,36 +53,11 @@ static inline void slow_down_io(void)
#endif
}
-static inline void paravirt_activate_mm(struct mm_struct *prev,
- struct mm_struct *next)
-{
- PVOP_VCALL2(pv_mmu_ops.activate_mm, prev, next);
-}
-
-static inline void paravirt_arch_dup_mmap(struct mm_struct *oldmm,
- struct mm_struct *mm)
-{
- PVOP_VCALL2(pv_mmu_ops.dup_mmap, oldmm, mm);
-}
-
static inline void paravirt_arch_exit_mmap(struct mm_struct *mm)
{
PVOP_VCALL1(pv_mmu_ops.exit_mmap, mm);
}
-static inline void __flush_tlb(void)
-{
- PVOP_VCALL0(pv_mmu_ops.flush_tlb_user);
-}
-static inline void __flush_tlb_global(void)
-{
- PVOP_VCALL0(pv_mmu_ops.flush_tlb_kernel);
-}
-static inline void __flush_tlb_single(unsigned long addr)
-{
- PVOP_VCALL1(pv_mmu_ops.flush_tlb_single, addr);
-}
-
static inline void flush_tlb_others(const struct cpumask *cpumask,
struct mm_struct *mm,
unsigned long start,
@@ -104,375 +66,6 @@ static inline void flush_tlb_others(const struct cpumask *cpumask,
PVOP_VCALL4(pv_mmu_ops.flush_tlb_others, cpumask, mm, start, end);
}
-static inline int paravirt_pgd_alloc(struct mm_struct *mm)
-{
- return PVOP_CALL1(int, pv_mmu_ops.pgd_alloc, mm);
-}
-
-static inline void paravirt_pgd_free(struct mm_struct *mm, pgd_t *pgd)
-{
- PVOP_VCALL2(pv_mmu_ops.pgd_free, mm, pgd);
-}
-
-static inline void paravirt_alloc_pte(struct mm_struct *mm, unsigned long pfn)
-{
- PVOP_VCALL2(pv_mmu_ops.alloc_pte, mm, pfn);
-}
-static inline void paravirt_release_pte(unsigned long pfn)
-{
- PVOP_VCALL1(pv_mmu_ops.release_pte, pfn);
-}
-
-static inline void paravirt_alloc_pmd(struct mm_struct *mm, unsigned long pfn)
-{
- PVOP_VCALL2(pv_mmu_ops.alloc_pmd, mm, pfn);
-}
-
-static inline void paravirt_release_pmd(unsigned long pfn)
-{
- PVOP_VCALL1(pv_mmu_ops.release_pmd, pfn);
-}
-
-static inline void paravirt_alloc_pud(struct mm_struct *mm, unsigned long pfn)
-{
- PVOP_VCALL2(pv_mmu_ops.alloc_pud, mm, pfn);
-}
-static inline void paravirt_release_pud(unsigned long pfn)
-{
- PVOP_VCALL1(pv_mmu_ops.release_pud, pfn);
-}
-
-static inline void paravirt_alloc_p4d(struct mm_struct *mm, unsigned long pfn)
-{
- PVOP_VCALL2(pv_mmu_ops.alloc_p4d, mm, pfn);
-}
-
-static inline void paravirt_release_p4d(unsigned long pfn)
-{
- PVOP_VCALL1(pv_mmu_ops.release_p4d, pfn);
-}
-
-static inline void pte_update(struct mm_struct *mm, unsigned long addr,
- pte_t *ptep)
-{
- PVOP_VCALL3(pv_mmu_ops.pte_update, mm, addr, ptep);
-}
-
-static inline pte_t __pte(pteval_t val)
-{
- pteval_t ret;
-
- if (sizeof(pteval_t) > sizeof(long))
- ret = PVOP_CALLEE2(pteval_t,
- pv_mmu_ops.make_pte,
- val, (u64)val >> 32);
- else
- ret = PVOP_CALLEE1(pteval_t,
- pv_mmu_ops.make_pte,
- val);
-
- return (pte_t) { .pte = ret };
-}
-
-static inline pteval_t pte_val(pte_t pte)
-{
- pteval_t ret;
-
- if (sizeof(pteval_t) > sizeof(long))
- ret = PVOP_CALLEE2(pteval_t, pv_mmu_ops.pte_val,
- pte.pte, (u64)pte.pte >> 32);
- else
- ret = PVOP_CALLEE1(pteval_t, pv_mmu_ops.pte_val,
- pte.pte);
-
- return ret;
-}
-
-static inline pgd_t __pgd(pgdval_t val)
-{
- pgdval_t ret;
-
- if (sizeof(pgdval_t) > sizeof(long))
- ret = PVOP_CALLEE2(pgdval_t, pv_mmu_ops.make_pgd,
- val, (u64)val >> 32);
- else
- ret = PVOP_CALLEE1(pgdval_t, pv_mmu_ops.make_pgd,
- val);
-
- return (pgd_t) { ret };
-}
-
-static inline pgdval_t pgd_val(pgd_t pgd)
-{
- pgdval_t ret;
-
- if (sizeof(pgdval_t) > sizeof(long))
- ret = PVOP_CALLEE2(pgdval_t, pv_mmu_ops.pgd_val,
- pgd.pgd, (u64)pgd.pgd >> 32);
- else
- ret = PVOP_CALLEE1(pgdval_t, pv_mmu_ops.pgd_val,
- pgd.pgd);
-
- return ret;
-}
-
-#define __HAVE_ARCH_PTEP_MODIFY_PROT_TRANSACTION
-static inline pte_t ptep_modify_prot_start(struct mm_struct *mm, unsigned long addr,
- pte_t *ptep)
-{
- pteval_t ret;
-
- ret = PVOP_CALL3(pteval_t, pv_mmu_ops.ptep_modify_prot_start,
- mm, addr, ptep);
-
- return (pte_t) { .pte = ret };
-}
-
-static inline void ptep_modify_prot_commit(struct mm_struct *mm, unsigned long addr,
- pte_t *ptep, pte_t pte)
-{
- if (sizeof(pteval_t) > sizeof(long))
- /* 5 arg words */
- pv_mmu_ops.ptep_modify_prot_commit(mm, addr, ptep, pte);
- else
- PVOP_VCALL4(pv_mmu_ops.ptep_modify_prot_commit,
- mm, addr, ptep, pte.pte);
-}
-
-static inline void set_pte(pte_t *ptep, pte_t pte)
-{
- if (sizeof(pteval_t) > sizeof(long))
- PVOP_VCALL3(pv_mmu_ops.set_pte, ptep,
- pte.pte, (u64)pte.pte >> 32);
- else
- PVOP_VCALL2(pv_mmu_ops.set_pte, ptep,
- pte.pte);
-}
-
-static inline void set_pte_at(struct mm_struct *mm, unsigned long addr,
- pte_t *ptep, pte_t pte)
-{
- if (sizeof(pteval_t) > sizeof(long))
- /* 5 arg words */
- pv_mmu_ops.set_pte_at(mm, addr, ptep, pte);
- else
- PVOP_VCALL4(pv_mmu_ops.set_pte_at, mm, addr, ptep, pte.pte);
-}
-
-static inline void set_pmd_at(struct mm_struct *mm, unsigned long addr,
- pmd_t *pmdp, pmd_t pmd)
-{
- if (sizeof(pmdval_t) > sizeof(long))
- /* 5 arg words */
- pv_mmu_ops.set_pmd_at(mm, addr, pmdp, pmd);
- else
- PVOP_VCALL4(pv_mmu_ops.set_pmd_at, mm, addr, pmdp,
- native_pmd_val(pmd));
-}
-
-static inline void set_pud_at(struct mm_struct *mm, unsigned long addr,
- pud_t *pudp, pud_t pud)
-{
- if (sizeof(pudval_t) > sizeof(long))
- /* 5 arg words */
- pv_mmu_ops.set_pud_at(mm, addr, pudp, pud);
- else
- PVOP_VCALL4(pv_mmu_ops.set_pud_at, mm, addr, pudp,
- native_pud_val(pud));
-}
-
-static inline void set_pmd(pmd_t *pmdp, pmd_t pmd)
-{
- pmdval_t val = native_pmd_val(pmd);
-
- if (sizeof(pmdval_t) > sizeof(long))
- PVOP_VCALL3(pv_mmu_ops.set_pmd, pmdp, val, (u64)val >> 32);
- else
- PVOP_VCALL2(pv_mmu_ops.set_pmd, pmdp, val);
-}
-
-#if CONFIG_PGTABLE_LEVELS >= 3
-static inline pmd_t __pmd(pmdval_t val)
-{
- pmdval_t ret;
-
- if (sizeof(pmdval_t) > sizeof(long))
- ret = PVOP_CALLEE2(pmdval_t, pv_mmu_ops.make_pmd,
- val, (u64)val >> 32);
- else
- ret = PVOP_CALLEE1(pmdval_t, pv_mmu_ops.make_pmd,
- val);
-
- return (pmd_t) { ret };
-}
-
-static inline pmdval_t pmd_val(pmd_t pmd)
-{
- pmdval_t ret;
-
- if (sizeof(pmdval_t) > sizeof(long))
- ret = PVOP_CALLEE2(pmdval_t, pv_mmu_ops.pmd_val,
- pmd.pmd, (u64)pmd.pmd >> 32);
- else
- ret = PVOP_CALLEE1(pmdval_t, pv_mmu_ops.pmd_val,
- pmd.pmd);
-
- return ret;
-}
-
-static inline void set_pud(pud_t *pudp, pud_t pud)
-{
- pudval_t val = native_pud_val(pud);
-
- if (sizeof(pudval_t) > sizeof(long))
- PVOP_VCALL3(pv_mmu_ops.set_pud, pudp,
- val, (u64)val >> 32);
- else
- PVOP_VCALL2(pv_mmu_ops.set_pud, pudp,
- val);
-}
-#if CONFIG_PGTABLE_LEVELS >= 4
-static inline pud_t __pud(pudval_t val)
-{
- pudval_t ret;
-
- if (sizeof(pudval_t) > sizeof(long))
- ret = PVOP_CALLEE2(pudval_t, pv_mmu_ops.make_pud,
- val, (u64)val >> 32);
- else
- ret = PVOP_CALLEE1(pudval_t, pv_mmu_ops.make_pud,
- val);
-
- return (pud_t) { ret };
-}
-
-static inline pudval_t pud_val(pud_t pud)
-{
- pudval_t ret;
-
- if (sizeof(pudval_t) > sizeof(long))
- ret = PVOP_CALLEE2(pudval_t, pv_mmu_ops.pud_val,
- pud.pud, (u64)pud.pud >> 32);
- else
- ret = PVOP_CALLEE1(pudval_t, pv_mmu_ops.pud_val,
- pud.pud);
-
- return ret;
-}
-
-static inline void pud_clear(pud_t *pudp)
-{
- set_pud(pudp, __pud(0));
-}
-
-static inline void set_p4d(p4d_t *p4dp, p4d_t p4d)
-{
- p4dval_t val = native_p4d_val(p4d);
-
- if (sizeof(p4dval_t) > sizeof(long))
- PVOP_VCALL3(pv_mmu_ops.set_p4d, p4dp,
- val, (u64)val >> 32);
- else
- PVOP_VCALL2(pv_mmu_ops.set_p4d, p4dp,
- val);
-}
-
-#if CONFIG_PGTABLE_LEVELS >= 5
-
-static inline p4d_t __p4d(p4dval_t val)
-{
- p4dval_t ret = PVOP_CALLEE1(p4dval_t, pv_mmu_ops.make_p4d, val);
-
- return (p4d_t) { ret };
-}
-
-static inline p4dval_t p4d_val(p4d_t p4d)
-{
- return PVOP_CALLEE1(p4dval_t, pv_mmu_ops.p4d_val, p4d.p4d);
-}
-
-static inline void set_pgd(pgd_t *pgdp, pgd_t pgd)
-{
- pgdval_t val = native_pgd_val(pgd);
-
- PVOP_VCALL2(pv_mmu_ops.set_pgd, pgdp, val);
-}
-
-static inline void pgd_clear(pgd_t *pgdp)
-{
- set_pgd(pgdp, __pgd(0));
-}
-
-#endif /* CONFIG_PGTABLE_LEVELS == 5 */
-
-static inline void p4d_clear(p4d_t *p4dp)
-{
- set_p4d(p4dp, __p4d(0));
-}
-
-#endif /* CONFIG_PGTABLE_LEVELS == 4 */
-
-#endif /* CONFIG_PGTABLE_LEVELS >= 3 */
-
-#ifdef CONFIG_X86_PAE
-/* Special-case pte-setting operations for PAE, which can't update a
- 64-bit pte atomically */
-static inline void set_pte_atomic(pte_t *ptep, pte_t pte)
-{
- PVOP_VCALL3(pv_mmu_ops.set_pte_atomic, ptep,
- pte.pte, pte.pte >> 32);
-}
-
-static inline void pte_clear(struct mm_struct *mm, unsigned long addr,
- pte_t *ptep)
-{
- PVOP_VCALL3(pv_mmu_ops.pte_clear, mm, addr, ptep);
-}
-
-static inline void pmd_clear(pmd_t *pmdp)
-{
- PVOP_VCALL1(pv_mmu_ops.pmd_clear, pmdp);
-}
-#else /* !CONFIG_X86_PAE */
-static inline void set_pte_atomic(pte_t *ptep, pte_t pte)
-{
- set_pte(ptep, pte);
-}
-
-static inline void pte_clear(struct mm_struct *mm, unsigned long addr,
- pte_t *ptep)
-{
- set_pte_at(mm, addr, ptep, __pte(0));
-}
-
-static inline void pmd_clear(pmd_t *pmdp)
-{
- set_pmd(pmdp, __pmd(0));
-}
-#endif /* CONFIG_X86_PAE */
-
-#define __HAVE_ARCH_ENTER_LAZY_MMU_MODE
-static inline void arch_enter_lazy_mmu_mode(void)
-{
- PVOP_VCALL0(pv_mmu_ops.lazy_mode.enter);
-}
-
-static inline void arch_leave_lazy_mmu_mode(void)
-{
- PVOP_VCALL0(pv_mmu_ops.lazy_mode.leave);
-}
-
-static inline void arch_flush_lazy_mmu_mode(void)
-{
- PVOP_VCALL0(pv_mmu_ops.lazy_mode.flush);
-}
-
-static inline void __set_fixmap(unsigned /* enum fixed_addresses */ idx,
- phys_addr_t phys, pgprot_t flags)
-{
- pv_mmu_ops.set_fixmap(idx, phys, flags);
-}
-
#if defined(CONFIG_SMP) && defined(CONFIG_PARAVIRT_SPINLOCKS)
static __always_inline void pv_queued_spin_lock_slowpath(struct qspinlock *lock,
@@ -706,25 +299,22 @@ extern void default_banner(void);
call PARA_INDIRECT(pv_irq_ops+PV_IRQ_irq_enable); \
PV_RESTORE_REGS(clobbers | CLBR_CALLEE_SAVE);)
-#ifdef CONFIG_X86_64
-
-#define GET_CR2_INTO_RAX \
- call PARA_INDIRECT(pv_mmu_ops+PV_MMU_read_cr2)
-
-#endif /* CONFIG_X86_64 */
-
#endif /* __ASSEMBLY__ */
#else /* CONFIG_PARAVIRT */
# define default_banner x86_init_noop
#ifndef __ASSEMBLY__
-static inline void paravirt_arch_dup_mmap(struct mm_struct *oldmm,
- struct mm_struct *mm)
-{
-}
-
static inline void paravirt_arch_exit_mmap(struct mm_struct *mm)
{
}
#endif /* __ASSEMBLY__ */
#endif /* !CONFIG_PARAVIRT */
+
+#ifndef CONFIG_PARAVIRT_FULL
+#ifndef __ASSEMBLY__
+static inline void paravirt_arch_dup_mmap(struct mm_struct *oldmm,
+ struct mm_struct *mm)
+{
+}
+#endif /* __ASSEMBLY__ */
+#endif /* CONFIG_PARAVIRT_FULL */
#endif /* _ASM_X86_PARAVIRT_H */
diff --git a/arch/x86/include/asm/paravirt_full.h b/arch/x86/include/asm/paravirt_full.h
index 64753ef1d36f..53f2eb436ba3 100644
--- a/arch/x86/include/asm/paravirt_full.h
+++ b/arch/x86/include/asm/paravirt_full.h
@@ -241,6 +241,425 @@ static inline void halt(void)
PVOP_VCALL0(pvfull_irq_ops.halt);
}
+static inline unsigned long read_cr2(void)
+{
+ return PVOP_CALL0(unsigned long, pvfull_mmu_ops.read_cr2);
+}
+
+static inline void write_cr2(unsigned long x)
+{
+ PVOP_VCALL1(pvfull_mmu_ops.write_cr2, x);
+}
+
+static inline unsigned long read_cr3(void)
+{
+ return PVOP_CALL0(unsigned long, pvfull_mmu_ops.read_cr3);
+}
+
+static inline void write_cr3(unsigned long x)
+{
+ PVOP_VCALL1(pvfull_mmu_ops.write_cr3, x);
+}
+
+static inline void paravirt_activate_mm(struct mm_struct *prev,
+ struct mm_struct *next)
+{
+ PVOP_VCALL2(pvfull_mmu_ops.activate_mm, prev, next);
+}
+
+static inline void paravirt_arch_dup_mmap(struct mm_struct *oldmm,
+ struct mm_struct *mm)
+{
+ PVOP_VCALL2(pvfull_mmu_ops.dup_mmap, oldmm, mm);
+}
+
+static inline void __flush_tlb(void)
+{
+ PVOP_VCALL0(pvfull_mmu_ops.flush_tlb_user);
+}
+
+static inline void __flush_tlb_global(void)
+{
+ PVOP_VCALL0(pvfull_mmu_ops.flush_tlb_kernel);
+}
+
+static inline void __flush_tlb_single(unsigned long addr)
+{
+ PVOP_VCALL1(pvfull_mmu_ops.flush_tlb_single, addr);
+}
+
+static inline int paravirt_pgd_alloc(struct mm_struct *mm)
+{
+ return PVOP_CALL1(int, pvfull_mmu_ops.pgd_alloc, mm);
+}
+
+static inline void paravirt_pgd_free(struct mm_struct *mm, pgd_t *pgd)
+{
+ PVOP_VCALL2(pvfull_mmu_ops.pgd_free, mm, pgd);
+}
+
+static inline void paravirt_alloc_pte(struct mm_struct *mm, unsigned long pfn)
+{
+ PVOP_VCALL2(pvfull_mmu_ops.alloc_pte, mm, pfn);
+}
+
+static inline void paravirt_release_pte(unsigned long pfn)
+{
+ PVOP_VCALL1(pvfull_mmu_ops.release_pte, pfn);
+}
+
+static inline void paravirt_alloc_pmd(struct mm_struct *mm, unsigned long pfn)
+{
+ PVOP_VCALL2(pvfull_mmu_ops.alloc_pmd, mm, pfn);
+}
+
+static inline void paravirt_release_pmd(unsigned long pfn)
+{
+ PVOP_VCALL1(pvfull_mmu_ops.release_pmd, pfn);
+}
+
+static inline void paravirt_alloc_pud(struct mm_struct *mm, unsigned long pfn)
+{
+ PVOP_VCALL2(pvfull_mmu_ops.alloc_pud, mm, pfn);
+}
+
+static inline void paravirt_release_pud(unsigned long pfn)
+{
+ PVOP_VCALL1(pvfull_mmu_ops.release_pud, pfn);
+}
+
+static inline void paravirt_alloc_p4d(struct mm_struct *mm, unsigned long pfn)
+{
+ PVOP_VCALL2(pvfull_mmu_ops.alloc_p4d, mm, pfn);
+}
+
+static inline void paravirt_release_p4d(unsigned long pfn)
+{
+ PVOP_VCALL1(pvfull_mmu_ops.release_p4d, pfn);
+}
+
+static inline void pte_update(struct mm_struct *mm, unsigned long addr,
+ pte_t *ptep)
+{
+ PVOP_VCALL3(pvfull_mmu_ops.pte_update, mm, addr, ptep);
+}
+
+static inline pte_t __pte(pteval_t val)
+{
+ pteval_t ret;
+
+ if (sizeof(pteval_t) > sizeof(long))
+ ret = PVOP_CALLEE2(pteval_t,
+ pvfull_mmu_ops.make_pte,
+ val, (u64)val >> 32);
+ else
+ ret = PVOP_CALLEE1(pteval_t,
+ pvfull_mmu_ops.make_pte,
+ val);
+
+ return (pte_t) { .pte = ret };
+}
+
+static inline pteval_t pte_val(pte_t pte)
+{
+ pteval_t ret;
+
+ if (sizeof(pteval_t) > sizeof(long))
+ ret = PVOP_CALLEE2(pteval_t, pvfull_mmu_ops.pte_val,
+ pte.pte, (u64)pte.pte >> 32);
+ else
+ ret = PVOP_CALLEE1(pteval_t, pvfull_mmu_ops.pte_val,
+ pte.pte);
+
+ return ret;
+}
+
+static inline pgd_t __pgd(pgdval_t val)
+{
+ pgdval_t ret;
+
+ if (sizeof(pgdval_t) > sizeof(long))
+ ret = PVOP_CALLEE2(pgdval_t, pvfull_mmu_ops.make_pgd,
+ val, (u64)val >> 32);
+ else
+ ret = PVOP_CALLEE1(pgdval_t, pvfull_mmu_ops.make_pgd,
+ val);
+
+ return (pgd_t) { ret };
+}
+
+static inline pgdval_t pgd_val(pgd_t pgd)
+{
+ pgdval_t ret;
+
+ if (sizeof(pgdval_t) > sizeof(long))
+ ret = PVOP_CALLEE2(pgdval_t, pvfull_mmu_ops.pgd_val,
+ pgd.pgd, (u64)pgd.pgd >> 32);
+ else
+ ret = PVOP_CALLEE1(pgdval_t, pvfull_mmu_ops.pgd_val,
+ pgd.pgd);
+
+ return ret;
+}
+
+#define __HAVE_ARCH_PTEP_MODIFY_PROT_TRANSACTION
+static inline pte_t ptep_modify_prot_start(struct mm_struct *mm,
+ unsigned long addr, pte_t *ptep)
+{
+ pteval_t ret;
+
+ ret = PVOP_CALL3(pteval_t, pvfull_mmu_ops.ptep_modify_prot_start,
+ mm, addr, ptep);
+
+ return (pte_t) { .pte = ret };
+}
+
+static inline void ptep_modify_prot_commit(struct mm_struct *mm,
+ unsigned long addr, pte_t *ptep,
+ pte_t pte)
+{
+ if (sizeof(pteval_t) > sizeof(long))
+ /* 5 arg words */
+ pvfull_mmu_ops.ptep_modify_prot_commit(mm, addr, ptep, pte);
+ else
+ PVOP_VCALL4(pvfull_mmu_ops.ptep_modify_prot_commit,
+ mm, addr, ptep, pte.pte);
+}
+
+static inline void set_pte(pte_t *ptep, pte_t pte)
+{
+ if (sizeof(pteval_t) > sizeof(long))
+ PVOP_VCALL3(pvfull_mmu_ops.set_pte, ptep,
+ pte.pte, (u64)pte.pte >> 32);
+ else
+ PVOP_VCALL2(pvfull_mmu_ops.set_pte, ptep,
+ pte.pte);
+}
+
+static inline void set_pte_at(struct mm_struct *mm, unsigned long addr,
+ pte_t *ptep, pte_t pte)
+{
+ if (sizeof(pteval_t) > sizeof(long))
+ /* 5 arg words */
+ pvfull_mmu_ops.set_pte_at(mm, addr, ptep, pte);
+ else
+ PVOP_VCALL4(pvfull_mmu_ops.set_pte_at, mm, addr, ptep, pte.pte);
+}
+
+static inline void set_pmd_at(struct mm_struct *mm, unsigned long addr,
+ pmd_t *pmdp, pmd_t pmd)
+{
+ if (sizeof(pmdval_t) > sizeof(long))
+ /* 5 arg words */
+ pvfull_mmu_ops.set_pmd_at(mm, addr, pmdp, pmd);
+ else
+ PVOP_VCALL4(pvfull_mmu_ops.set_pmd_at, mm, addr, pmdp,
+ native_pmd_val(pmd));
+}
+
+static inline void set_pud_at(struct mm_struct *mm, unsigned long addr,
+ pud_t *pudp, pud_t pud)
+{
+ if (sizeof(pudval_t) > sizeof(long))
+ /* 5 arg words */
+ pvfull_mmu_ops.set_pud_at(mm, addr, pudp, pud);
+ else
+ PVOP_VCALL4(pvfull_mmu_ops.set_pud_at, mm, addr, pudp,
+ native_pud_val(pud));
+}
+
+static inline void set_pmd(pmd_t *pmdp, pmd_t pmd)
+{
+ pmdval_t val = native_pmd_val(pmd);
+
+ if (sizeof(pmdval_t) > sizeof(long))
+ PVOP_VCALL3(pvfull_mmu_ops.set_pmd, pmdp, val, (u64)val >> 32);
+ else
+ PVOP_VCALL2(pvfull_mmu_ops.set_pmd, pmdp, val);
+}
+
+#if CONFIG_PGTABLE_LEVELS >= 3
+static inline pmd_t __pmd(pmdval_t val)
+{
+ pmdval_t ret;
+
+ if (sizeof(pmdval_t) > sizeof(long))
+ ret = PVOP_CALLEE2(pmdval_t, pvfull_mmu_ops.make_pmd,
+ val, (u64)val >> 32);
+ else
+ ret = PVOP_CALLEE1(pmdval_t, pvfull_mmu_ops.make_pmd,
+ val);
+
+ return (pmd_t) { ret };
+}
+
+static inline pmdval_t pmd_val(pmd_t pmd)
+{
+ pmdval_t ret;
+
+ if (sizeof(pmdval_t) > sizeof(long))
+ ret = PVOP_CALLEE2(pmdval_t, pvfull_mmu_ops.pmd_val,
+ pmd.pmd, (u64)pmd.pmd >> 32);
+ else
+ ret = PVOP_CALLEE1(pmdval_t, pvfull_mmu_ops.pmd_val,
+ pmd.pmd);
+
+ return ret;
+}
+
+static inline void set_pud(pud_t *pudp, pud_t pud)
+{
+ pudval_t val = native_pud_val(pud);
+
+ if (sizeof(pudval_t) > sizeof(long))
+ PVOP_VCALL3(pvfull_mmu_ops.set_pud, pudp,
+ val, (u64)val >> 32);
+ else
+ PVOP_VCALL2(pvfull_mmu_ops.set_pud, pudp,
+ val);
+}
+
+#if CONFIG_PGTABLE_LEVELS >= 4
+static inline pud_t __pud(pudval_t val)
+{
+ pudval_t ret;
+
+ if (sizeof(pudval_t) > sizeof(long))
+ ret = PVOP_CALLEE2(pudval_t, pvfull_mmu_ops.make_pud,
+ val, (u64)val >> 32);
+ else
+ ret = PVOP_CALLEE1(pudval_t, pvfull_mmu_ops.make_pud,
+ val);
+
+ return (pud_t) { ret };
+}
+
+static inline pudval_t pud_val(pud_t pud)
+{
+ pudval_t ret;
+
+ if (sizeof(pudval_t) > sizeof(long))
+ ret = PVOP_CALLEE2(pudval_t, pvfull_mmu_ops.pud_val,
+ pud.pud, (u64)pud.pud >> 32);
+ else
+ ret = PVOP_CALLEE1(pudval_t, pvfull_mmu_ops.pud_val,
+ pud.pud);
+
+ return ret;
+}
+
+static inline void pud_clear(pud_t *pudp)
+{
+ set_pud(pudp, __pud(0));
+}
+
+static inline void set_p4d(p4d_t *p4dp, p4d_t p4d)
+{
+ p4dval_t val = native_p4d_val(p4d);
+
+ if (sizeof(p4dval_t) > sizeof(long))
+ PVOP_VCALL3(pvfull_mmu_ops.set_p4d, p4dp,
+ val, (u64)val >> 32);
+ else
+ PVOP_VCALL2(pvfull_mmu_ops.set_p4d, p4dp,
+ val);
+}
+
+#if CONFIG_PGTABLE_LEVELS >= 5
+static inline p4d_t __p4d(p4dval_t val)
+{
+ p4dval_t ret = PVOP_CALLEE1(p4dval_t, pvfull_mmu_ops.make_p4d, val);
+
+ return (p4d_t) { ret };
+}
+
+static inline p4dval_t p4d_val(p4d_t p4d)
+{
+ return PVOP_CALLEE1(p4dval_t, pvfull_mmu_ops.p4d_val, p4d.p4d);
+}
+
+static inline void set_pgd(pgd_t *pgdp, pgd_t pgd)
+{
+ pgdval_t val = native_pgd_val(pgd);
+
+ PVOP_VCALL2(pvfull_mmu_ops.set_pgd, pgdp, val);
+}
+
+static inline void pgd_clear(pgd_t *pgdp)
+{
+ set_pgd(pgdp, __pgd(0));
+}
+
+#endif /* CONFIG_PGTABLE_LEVELS >= 5 */
+
+static inline void p4d_clear(p4d_t *p4dp)
+{
+ set_p4d(p4dp, __p4d(0));
+}
+
+#endif /* CONFIG_PGTABLE_LEVELS >= 4 */
+
+#endif /* CONFIG_PGTABLE_LEVELS >= 3 */
+
+#ifdef CONFIG_X86_PAE
+/* Special-case pte-setting operations for PAE, which can't update a
+ 64-bit pte atomically */
+static inline void set_pte_atomic(pte_t *ptep, pte_t pte)
+{
+ PVOP_VCALL3(pvfull_mmu_ops.set_pte_atomic, ptep,
+ pte.pte, pte.pte >> 32);
+}
+
+static inline void pte_clear(struct mm_struct *mm, unsigned long addr,
+ pte_t *ptep)
+{
+ PVOP_VCALL3(pvfull_mmu_ops.pte_clear, mm, addr, ptep);
+}
+
+static inline void pmd_clear(pmd_t *pmdp)
+{
+ PVOP_VCALL1(pvfull_mmu_ops.pmd_clear, pmdp);
+}
+#else /* !CONFIG_X86_PAE */
+static inline void set_pte_atomic(pte_t *ptep, pte_t pte)
+{
+ set_pte(ptep, pte);
+}
+
+static inline void pte_clear(struct mm_struct *mm, unsigned long addr,
+ pte_t *ptep)
+{
+ set_pte_at(mm, addr, ptep, __pte(0));
+}
+
+static inline void pmd_clear(pmd_t *pmdp)
+{
+ set_pmd(pmdp, __pmd(0));
+}
+#endif /* CONFIG_X86_PAE */
+
+#define __HAVE_ARCH_ENTER_LAZY_MMU_MODE
+static inline void arch_enter_lazy_mmu_mode(void)
+{
+ PVOP_VCALL0(pvfull_mmu_ops.lazy_mode.enter);
+}
+
+static inline void arch_leave_lazy_mmu_mode(void)
+{
+ PVOP_VCALL0(pvfull_mmu_ops.lazy_mode.leave);
+}
+
+static inline void arch_flush_lazy_mmu_mode(void)
+{
+ PVOP_VCALL0(pvfull_mmu_ops.lazy_mode.flush);
+}
+
+static inline void __set_fixmap(unsigned /* enum fixed_addresses */ idx,
+ phys_addr_t phys, pgprot_t flags)
+{
+ pvfull_mmu_ops.set_fixmap(idx, phys, flags);
+}
+
#else /* __ASSEMBLY__ */
#define INTERRUPT_RETURN \
@@ -284,6 +703,9 @@ static inline void halt(void)
call PARA_INDIRECT(pvfull_irq_ops + \
PV_IRQ_adjust_exception_frame))
+#define GET_CR2_INTO_RAX \
+ call PARA_INDIRECT(pvfull_mmu_ops+PV_MMU_read_cr2)
+
#endif /* CONFIG_X86_32 */
#endif /* __ASSEMBLY__ */
diff --git a/arch/x86/include/asm/paravirt_types.h b/arch/x86/include/asm/paravirt_types.h
index de95e6253516..b1ac2a5698b4 100644
--- a/arch/x86/include/asm/paravirt_types.h
+++ b/arch/x86/include/asm/paravirt_types.h
@@ -89,14 +89,6 @@ struct pv_init_ops {
unsigned long addr, unsigned len);
};
-
-struct pv_lazy_ops {
- /* Set deferred update mode, used for batching operations. */
- void (*enter)(void);
- void (*leave)(void);
- void (*flush)(void);
-};
-
struct pv_time_ops {
unsigned long long (*sched_clock)(void);
unsigned long long (*steal_clock)(int cpu);
@@ -123,111 +115,11 @@ struct pv_irq_ops {
};
struct pv_mmu_ops {
- unsigned long (*read_cr2)(void);
- void (*write_cr2)(unsigned long);
-
- unsigned long (*read_cr3)(void);
- void (*write_cr3)(unsigned long);
-
- /*
- * Hooks for intercepting the creation/use/destruction of an
- * mm_struct.
- */
- void (*activate_mm)(struct mm_struct *prev,
- struct mm_struct *next);
- void (*dup_mmap)(struct mm_struct *oldmm,
- struct mm_struct *mm);
void (*exit_mmap)(struct mm_struct *mm);
-
-
- /* TLB operations */
- void (*flush_tlb_user)(void);
- void (*flush_tlb_kernel)(void);
- void (*flush_tlb_single)(unsigned long addr);
void (*flush_tlb_others)(const struct cpumask *cpus,
struct mm_struct *mm,
unsigned long start,
unsigned long end);
-
- /* Hooks for allocating and freeing a pagetable top-level */
- int (*pgd_alloc)(struct mm_struct *mm);
- void (*pgd_free)(struct mm_struct *mm, pgd_t *pgd);
-
- /*
- * Hooks for allocating/releasing pagetable pages when they're
- * attached to a pagetable
- */
- void (*alloc_pte)(struct mm_struct *mm, unsigned long pfn);
- void (*alloc_pmd)(struct mm_struct *mm, unsigned long pfn);
- void (*alloc_pud)(struct mm_struct *mm, unsigned long pfn);
- void (*alloc_p4d)(struct mm_struct *mm, unsigned long pfn);
- void (*release_pte)(unsigned long pfn);
- void (*release_pmd)(unsigned long pfn);
- void (*release_pud)(unsigned long pfn);
- void (*release_p4d)(unsigned long pfn);
-
- /* Pagetable manipulation functions */
- void (*set_pte)(pte_t *ptep, pte_t pteval);
- void (*set_pte_at)(struct mm_struct *mm, unsigned long addr,
- pte_t *ptep, pte_t pteval);
- void (*set_pmd)(pmd_t *pmdp, pmd_t pmdval);
- void (*set_pmd_at)(struct mm_struct *mm, unsigned long addr,
- pmd_t *pmdp, pmd_t pmdval);
- void (*set_pud_at)(struct mm_struct *mm, unsigned long addr,
- pud_t *pudp, pud_t pudval);
- void (*pte_update)(struct mm_struct *mm, unsigned long addr,
- pte_t *ptep);
-
- pte_t (*ptep_modify_prot_start)(struct mm_struct *mm, unsigned long addr,
- pte_t *ptep);
- void (*ptep_modify_prot_commit)(struct mm_struct *mm, unsigned long addr,
- pte_t *ptep, pte_t pte);
-
- struct paravirt_callee_save pte_val;
- struct paravirt_callee_save make_pte;
-
- struct paravirt_callee_save pgd_val;
- struct paravirt_callee_save make_pgd;
-
-#if CONFIG_PGTABLE_LEVELS >= 3
-#ifdef CONFIG_X86_PAE
- void (*set_pte_atomic)(pte_t *ptep, pte_t pteval);
- void (*pte_clear)(struct mm_struct *mm, unsigned long addr,
- pte_t *ptep);
- void (*pmd_clear)(pmd_t *pmdp);
-
-#endif /* CONFIG_X86_PAE */
-
- void (*set_pud)(pud_t *pudp, pud_t pudval);
-
- struct paravirt_callee_save pmd_val;
- struct paravirt_callee_save make_pmd;
-
-#if CONFIG_PGTABLE_LEVELS >= 4
- struct paravirt_callee_save pud_val;
- struct paravirt_callee_save make_pud;
-
- void (*set_p4d)(p4d_t *p4dp, p4d_t p4dval);
-
-#if CONFIG_PGTABLE_LEVELS >= 5
- struct paravirt_callee_save p4d_val;
- struct paravirt_callee_save make_p4d;
-
- void (*set_pgd)(pgd_t *pgdp, pgd_t pgdval);
-#endif /* CONFIG_PGTABLE_LEVELS >= 5 */
-
-#endif /* CONFIG_PGTABLE_LEVELS >= 4 */
-
-#endif /* CONFIG_PGTABLE_LEVELS >= 3 */
-
- struct pv_lazy_ops lazy_mode;
-
- /* dom0 ops */
-
- /* Sometimes the physical address is a pfn, and sometimes its
- an mfn. We can tell which is which from the index. */
- void (*set_fixmap)(unsigned /* enum fixed_addresses */ idx,
- phys_addr_t phys, pgprot_t flags);
};
struct arch_spinlock;
@@ -260,6 +152,7 @@ struct paravirt_patch_template {
#ifdef CONFIG_PARAVIRT_FULL
struct pvfull_cpu_ops pvfull_cpu_ops;
struct pvfull_irq_ops pvfull_irq_ops;
+ struct pvfull_mmu_ops pvfull_mmu_ops;
#endif
};
@@ -599,14 +492,6 @@ enum paravirt_lazy_mode {
PARAVIRT_LAZY_CPU,
};
-enum paravirt_lazy_mode paravirt_get_lazy_mode(void);
-void paravirt_start_context_switch(struct task_struct *prev);
-void paravirt_end_context_switch(struct task_struct *next);
-
-void paravirt_enter_lazy_mmu(void);
-void paravirt_leave_lazy_mmu(void);
-void paravirt_flush_lazy_mmu(void);
-
void _paravirt_nop(void);
u32 _paravirt_ident_32(u32);
u64 _paravirt_ident_64(u64);
diff --git a/arch/x86/include/asm/paravirt_types_full.h b/arch/x86/include/asm/paravirt_types_full.h
index eabc0ecec8e4..15d595a5f9d2 100644
--- a/arch/x86/include/asm/paravirt_types_full.h
+++ b/arch/x86/include/asm/paravirt_types_full.h
@@ -1,6 +1,13 @@
#ifndef _ASM_X86_PARAVIRT_TYPES_FULL_H
#define _ASM_X86_PARAVIRT_TYPES_FULL_H
+struct pv_lazy_ops {
+ /* Set deferred update mode, used for batching operations. */
+ void (*enter)(void);
+ void (*leave)(void);
+ void (*flush)(void);
+};
+
struct pvfull_cpu_ops {
/* hooks for various privileged instructions */
unsigned long (*get_debugreg)(int regno);
@@ -86,7 +93,116 @@ struct pvfull_irq_ops {
#endif
};
+struct pvfull_mmu_ops {
+ unsigned long (*read_cr2)(void);
+ void (*write_cr2)(unsigned long);
+
+ unsigned long (*read_cr3)(void);
+ void (*write_cr3)(unsigned long);
+
+ /*
+ * Hooks for intercepting the creation/use/destruction of an
+ * mm_struct.
+ */
+ void (*activate_mm)(struct mm_struct *prev,
+ struct mm_struct *next);
+ void (*dup_mmap)(struct mm_struct *oldmm,
+ struct mm_struct *mm);
+
+ /* TLB operations */
+ void (*flush_tlb_user)(void);
+ void (*flush_tlb_kernel)(void);
+ void (*flush_tlb_single)(unsigned long addr);
+
+ /* Hooks for allocating and freeing a pagetable top-level */
+ int (*pgd_alloc)(struct mm_struct *mm);
+ void (*pgd_free)(struct mm_struct *mm, pgd_t *pgd);
+
+ /*
+ * Hooks for allocating/releasing pagetable pages when they're
+ * attached to a pagetable
+ */
+ void (*alloc_pte)(struct mm_struct *mm, unsigned long pfn);
+ void (*alloc_pmd)(struct mm_struct *mm, unsigned long pfn);
+ void (*alloc_pud)(struct mm_struct *mm, unsigned long pfn);
+ void (*alloc_p4d)(struct mm_struct *mm, unsigned long pfn);
+ void (*release_pte)(unsigned long pfn);
+ void (*release_pmd)(unsigned long pfn);
+ void (*release_pud)(unsigned long pfn);
+ void (*release_p4d)(unsigned long pfn);
+
+ /* Pagetable manipulation functions */
+ void (*set_pte)(pte_t *ptep, pte_t pteval);
+ void (*set_pte_at)(struct mm_struct *mm, unsigned long addr,
+ pte_t *ptep, pte_t pteval);
+ void (*set_pmd)(pmd_t *pmdp, pmd_t pmdval);
+ void (*set_pmd_at)(struct mm_struct *mm, unsigned long addr,
+ pmd_t *pmdp, pmd_t pmdval);
+ void (*set_pud_at)(struct mm_struct *mm, unsigned long addr,
+ pud_t *pudp, pud_t pudval);
+ void (*pte_update)(struct mm_struct *mm, unsigned long addr,
+ pte_t *ptep);
+
+ pte_t (*ptep_modify_prot_start)(struct mm_struct *mm, unsigned long addr,
+ pte_t *ptep);
+ void (*ptep_modify_prot_commit)(struct mm_struct *mm, unsigned long addr,
+ pte_t *ptep, pte_t pte);
+
+ struct paravirt_callee_save pte_val;
+ struct paravirt_callee_save make_pte;
+
+ struct paravirt_callee_save pgd_val;
+ struct paravirt_callee_save make_pgd;
+
+#if CONFIG_PGTABLE_LEVELS >= 3
+#ifdef CONFIG_X86_PAE
+ void (*set_pte_atomic)(pte_t *ptep, pte_t pteval);
+ void (*pte_clear)(struct mm_struct *mm, unsigned long addr,
+ pte_t *ptep);
+ void (*pmd_clear)(pmd_t *pmdp);
+
+#endif /* CONFIG_X86_PAE */
+
+ void (*set_pud)(pud_t *pudp, pud_t pudval);
+
+ struct paravirt_callee_save pmd_val;
+ struct paravirt_callee_save make_pmd;
+
+#if CONFIG_PGTABLE_LEVELS >= 4
+ struct paravirt_callee_save pud_val;
+ struct paravirt_callee_save make_pud;
+
+ void (*set_p4d)(p4d_t *p4dp, p4d_t p4dval);
+
+#if CONFIG_PGTABLE_LEVELS >= 5
+ struct paravirt_callee_save p4d_val;
+ struct paravirt_callee_save make_p4d;
+
+ void (*set_pgd)(pgd_t *pgdp, pgd_t pgdval);
+#endif /* CONFIG_PGTABLE_LEVELS >= 5 */
+
+#endif /* CONFIG_PGTABLE_LEVELS >= 4 */
+
+#endif /* CONFIG_PGTABLE_LEVELS >= 3 */
+
+ struct pv_lazy_ops lazy_mode;
+
+ /* Sometimes the physical address is a pfn, and sometimes its
+ an mfn. We can tell which is which from the index. */
+ void (*set_fixmap)(unsigned /* enum fixed_addresses */ idx,
+ phys_addr_t phys, pgprot_t flags);
+};
+
extern struct pvfull_cpu_ops pvfull_cpu_ops;
extern struct pvfull_irq_ops pvfull_irq_ops;
+extern struct pvfull_mmu_ops pvfull_mmu_ops;
+
+enum paravirt_lazy_mode paravirt_get_lazy_mode(void);
+void paravirt_start_context_switch(struct task_struct *prev);
+void paravirt_end_context_switch(struct task_struct *next);
+
+void paravirt_enter_lazy_mmu(void);
+void paravirt_leave_lazy_mmu(void);
+void paravirt_flush_lazy_mmu(void);
#endif /* _ASM_X86_PARAVIRT_TYPES_FULL_H */
diff --git a/arch/x86/include/asm/pgalloc.h b/arch/x86/include/asm/pgalloc.h
index 71de65bb1791..5cff39bd7f6d 100644
--- a/arch/x86/include/asm/pgalloc.h
+++ b/arch/x86/include/asm/pgalloc.h
@@ -7,7 +7,7 @@
static inline int __paravirt_pgd_alloc(struct mm_struct *mm) { return 0; }
-#ifdef CONFIG_PARAVIRT
+#ifdef CONFIG_PARAVIRT_FULL
#include <asm/paravirt.h>
#else
#define paravirt_pgd_alloc(mm) __paravirt_pgd_alloc(mm)
diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h
index fad12c481bf9..60c8f2ac7fee 100644
--- a/arch/x86/include/asm/pgtable.h
+++ b/arch/x86/include/asm/pgtable.h
@@ -38,9 +38,9 @@ extern struct list_head pgd_list;
extern struct mm_struct *pgd_page_get_mm(struct page *page);
-#ifdef CONFIG_PARAVIRT
+#ifdef CONFIG_PARAVIRT_FULL
#include <asm/paravirt.h>
-#else /* !CONFIG_PARAVIRT */
+#else /* !CONFIG_PARAVIRT_FULL */
#define set_pte(ptep, pte) native_set_pte(ptep, pte)
#define set_pte_at(mm, addr, ptep, pte) native_set_pte_at(mm, addr, ptep, pte)
#define set_pmd_at(mm, addr, pmdp, pmd) native_set_pmd_at(mm, addr, pmdp, pmd)
@@ -98,10 +98,6 @@ extern struct mm_struct *pgd_page_get_mm(struct page *page);
#define pte_val(x) native_pte_val(x)
#define __pte(x) native_make_pte(x)
-#endif /* CONFIG_PARAVIRT */
-
-#ifndef CONFIG_PARAVIRT_FULL
-
#define arch_end_context_switch(prev) do {} while (0)
#endif /* CONFIG_PARAVIRT_FULL */
diff --git a/arch/x86/include/asm/special_insns.h b/arch/x86/include/asm/special_insns.h
index ca3a3103791d..1ad38e40a770 100644
--- a/arch/x86/include/asm/special_insns.h
+++ b/arch/x86/include/asm/special_insns.h
@@ -135,7 +135,7 @@ static inline void native_wbinvd(void)
extern asmlinkage void native_load_gs_index(unsigned);
-#ifdef CONFIG_PARAVIRT
+#ifdef CONFIG_PARAVIRT_FULL
#include <asm/paravirt.h>
#else
@@ -159,10 +159,6 @@ static inline void write_cr3(unsigned long x)
native_write_cr3(x);
}
-#endif/* CONFIG_PARAVIRT */
-
-#ifndef CONFIG_PARAVIRT_FULL
-
static inline unsigned long read_cr0(void)
{
return native_read_cr0();
diff --git a/arch/x86/include/asm/tlbflush.h b/arch/x86/include/asm/tlbflush.h
index 6ed9ea469b48..6b0b6a1f231f 100644
--- a/arch/x86/include/asm/tlbflush.h
+++ b/arch/x86/include/asm/tlbflush.h
@@ -56,7 +56,7 @@ static inline void invpcid_flush_all_nonglobals(void)
__invpcid(0, 0, INVPCID_TYPE_ALL_NON_GLOBAL);
}
-#ifdef CONFIG_PARAVIRT
+#ifdef CONFIG_PARAVIRT_FULL
#include <asm/paravirt.h>
#else
#define __flush_tlb() __native_flush_tlb()
diff --git a/arch/x86/kernel/asm-offsets.c b/arch/x86/kernel/asm-offsets.c
index a32148390e49..18a5c06c007a 100644
--- a/arch/x86/kernel/asm-offsets.c
+++ b/arch/x86/kernel/asm-offsets.c
@@ -67,15 +67,17 @@ void common(void) {
OFFSET(PARAVIRT_PATCH_pv_irq_ops, paravirt_patch_template, pv_irq_ops);
OFFSET(PV_IRQ_irq_disable, pv_irq_ops, irq_disable);
OFFSET(PV_IRQ_irq_enable, pv_irq_ops, irq_enable);
- OFFSET(PV_MMU_read_cr2, pv_mmu_ops, read_cr2);
#endif
#ifdef CONFIG_PARAVIRT_FULL
OFFSET(PARAVIRT_PATCH_pvfull_cpu_ops, paravirt_patch_template,
pvfull_cpu_ops);
OFFSET(PARAVIRT_PATCH_pvfull_irq_ops, paravirt_patch_template,
pvfull_irq_ops);
+ OFFSET(PARAVIRT_PATCH_pvfull_mmu_ops, paravirt_patch_template,
+ pvfull_mmu_ops);
OFFSET(PV_CPU_iret, pvfull_cpu_ops, iret);
OFFSET(PV_CPU_read_cr0, pvfull_cpu_ops, read_cr0);
+ OFFSET(PV_MMU_read_cr2, pvfull_mmu_ops, read_cr2);
#endif
#ifdef CONFIG_XEN
diff --git a/arch/x86/kernel/head_64.S b/arch/x86/kernel/head_64.S
index ac9d327d2e42..f004edaf0d1f 100644
--- a/arch/x86/kernel/head_64.S
+++ b/arch/x86/kernel/head_64.S
@@ -23,7 +23,7 @@
#include "../entry/calling.h"
#include <asm/export.h>
-#ifdef CONFIG_PARAVIRT
+#ifdef CONFIG_PARAVIRT_FULL
#include <asm/asm-offsets.h>
#include <asm/paravirt.h>
#define GET_CR2_INTO(reg) GET_CR2_INTO_RAX ; movq %rax, reg
diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c
index 8e22cfc73349..6fb642572bff 100644
--- a/arch/x86/kernel/paravirt.c
+++ b/arch/x86/kernel/paravirt.c
@@ -28,12 +28,9 @@
#include <asm/bug.h>
#include <asm/paravirt.h>
#include <asm/setup.h>
-#include <asm/pgtable.h>
#include <asm/time.h>
-#include <asm/pgalloc.h>
#include <asm/irq.h>
#include <asm/delay.h>
-#include <asm/fixmap.h>
#include <asm/apic.h>
#include <asm/tlbflush.h>
#include <asm/timer.h>
@@ -179,25 +176,6 @@ unsigned paravirt_patch_insns(void *insnbuf, unsigned len,
return insn_len;
}
-static void native_flush_tlb(void)
-{
- __native_flush_tlb();
-}
-
-/*
- * Global pages have to be flushed a bit differently. Not a real
- * performance problem because this does not happen often.
- */
-static void native_flush_tlb_global(void)
-{
- __native_flush_tlb_global();
-}
-
-static void native_flush_tlb_single(unsigned long addr)
-{
- __native_flush_tlb_single(addr);
-}
-
struct static_key paravirt_steal_enabled;
struct static_key paravirt_steal_rq_enabled;
@@ -206,73 +184,6 @@ static u64 native_steal_clock(int cpu)
return 0;
}
-static DEFINE_PER_CPU(enum paravirt_lazy_mode, paravirt_lazy_mode) = PARAVIRT_LAZY_NONE;
-
-static inline void enter_lazy(enum paravirt_lazy_mode mode)
-{
- BUG_ON(this_cpu_read(paravirt_lazy_mode) != PARAVIRT_LAZY_NONE);
-
- this_cpu_write(paravirt_lazy_mode, mode);
-}
-
-static void leave_lazy(enum paravirt_lazy_mode mode)
-{
- BUG_ON(this_cpu_read(paravirt_lazy_mode) != mode);
-
- this_cpu_write(paravirt_lazy_mode, PARAVIRT_LAZY_NONE);
-}
-
-void paravirt_enter_lazy_mmu(void)
-{
- enter_lazy(PARAVIRT_LAZY_MMU);
-}
-
-void paravirt_leave_lazy_mmu(void)
-{
- leave_lazy(PARAVIRT_LAZY_MMU);
-}
-
-void paravirt_flush_lazy_mmu(void)
-{
- preempt_disable();
-
- if (paravirt_get_lazy_mode() == PARAVIRT_LAZY_MMU) {
- arch_leave_lazy_mmu_mode();
- arch_enter_lazy_mmu_mode();
- }
-
- preempt_enable();
-}
-
-void paravirt_start_context_switch(struct task_struct *prev)
-{
- BUG_ON(preemptible());
-
- if (this_cpu_read(paravirt_lazy_mode) == PARAVIRT_LAZY_MMU) {
- arch_leave_lazy_mmu_mode();
- set_ti_thread_flag(task_thread_info(prev), TIF_LAZY_MMU_UPDATES);
- }
- enter_lazy(PARAVIRT_LAZY_CPU);
-}
-
-void paravirt_end_context_switch(struct task_struct *next)
-{
- BUG_ON(preemptible());
-
- leave_lazy(PARAVIRT_LAZY_CPU);
-
- if (test_and_clear_ti_thread_flag(task_thread_info(next), TIF_LAZY_MMU_UPDATES))
- arch_enter_lazy_mmu_mode();
-}
-
-enum paravirt_lazy_mode paravirt_get_lazy_mode(void)
-{
- if (in_interrupt())
- return PARAVIRT_LAZY_NONE;
-
- return this_cpu_read(paravirt_lazy_mode);
-}
-
struct pv_info pv_info = {
.name = "bare hardware",
.kernel_rpl = 0,
@@ -303,91 +214,9 @@ __visible struct pv_cpu_ops pv_cpu_ops = {
.io_delay = native_io_delay,
};
-#if defined(CONFIG_X86_32) && !defined(CONFIG_X86_PAE)
-/* 32-bit pagetable entries */
-#define PTE_IDENT __PV_IS_CALLEE_SAVE(_paravirt_ident_32)
-#else
-/* 64-bit pagetable entries */
-#define PTE_IDENT __PV_IS_CALLEE_SAVE(_paravirt_ident_64)
-#endif
-
struct pv_mmu_ops pv_mmu_ops __ro_after_init = {
-
- .read_cr2 = native_read_cr2,
- .write_cr2 = native_write_cr2,
- .read_cr3 = native_read_cr3,
- .write_cr3 = native_write_cr3,
-
- .flush_tlb_user = native_flush_tlb,
- .flush_tlb_kernel = native_flush_tlb_global,
- .flush_tlb_single = native_flush_tlb_single,
.flush_tlb_others = native_flush_tlb_others,
-
- .pgd_alloc = __paravirt_pgd_alloc,
- .pgd_free = paravirt_nop,
-
- .alloc_pte = paravirt_nop,
- .alloc_pmd = paravirt_nop,
- .alloc_pud = paravirt_nop,
- .alloc_p4d = paravirt_nop,
- .release_pte = paravirt_nop,
- .release_pmd = paravirt_nop,
- .release_pud = paravirt_nop,
- .release_p4d = paravirt_nop,
-
- .set_pte = native_set_pte,
- .set_pte_at = native_set_pte_at,
- .set_pmd = native_set_pmd,
- .set_pmd_at = native_set_pmd_at,
- .pte_update = paravirt_nop,
-
- .ptep_modify_prot_start = __ptep_modify_prot_start,
- .ptep_modify_prot_commit = __ptep_modify_prot_commit,
-
-#if CONFIG_PGTABLE_LEVELS >= 3
-#ifdef CONFIG_X86_PAE
- .set_pte_atomic = native_set_pte_atomic,
- .pte_clear = native_pte_clear,
- .pmd_clear = native_pmd_clear,
-#endif
- .set_pud = native_set_pud,
- .set_pud_at = native_set_pud_at,
-
- .pmd_val = PTE_IDENT,
- .make_pmd = PTE_IDENT,
-
-#if CONFIG_PGTABLE_LEVELS >= 4
- .pud_val = PTE_IDENT,
- .make_pud = PTE_IDENT,
-
- .set_p4d = native_set_p4d,
-
-#if CONFIG_PGTABLE_LEVELS >= 5
- .p4d_val = PTE_IDENT,
- .make_p4d = PTE_IDENT,
-
- .set_pgd = native_set_pgd,
-#endif /* CONFIG_PGTABLE_LEVELS >= 5 */
-#endif /* CONFIG_PGTABLE_LEVELS >= 4 */
-#endif /* CONFIG_PGTABLE_LEVELS >= 3 */
-
- .pte_val = PTE_IDENT,
- .pgd_val = PTE_IDENT,
-
- .make_pte = PTE_IDENT,
- .make_pgd = PTE_IDENT,
-
- .dup_mmap = paravirt_nop,
.exit_mmap = paravirt_nop,
- .activate_mm = paravirt_nop,
-
- .lazy_mode = {
- .enter = paravirt_nop,
- .leave = paravirt_nop,
- .flush = paravirt_nop,
- },
-
- .set_fixmap = native_set_fixmap,
};
EXPORT_SYMBOL_GPL(pv_time_ops);
diff --git a/arch/x86/kernel/paravirt_full.c b/arch/x86/kernel/paravirt_full.c
index 353968da3ddc..b90dfa7428bd 100644
--- a/arch/x86/kernel/paravirt_full.c
+++ b/arch/x86/kernel/paravirt_full.c
@@ -19,12 +19,103 @@
#include <asm/paravirt.h>
#include <asm/debugreg.h>
#include <asm/desc.h>
+#include <asm/pgalloc.h>
#include <asm/processor.h>
+#include <asm/tlbflush.h>
/* These are in entry.S */
extern void native_iret(void);
extern void native_usergs_sysret64(void);
+static DEFINE_PER_CPU(enum paravirt_lazy_mode, paravirt_lazy_mode) =
+ PARAVIRT_LAZY_NONE;
+
+static inline void enter_lazy(enum paravirt_lazy_mode mode)
+{
+ BUG_ON(this_cpu_read(paravirt_lazy_mode) != PARAVIRT_LAZY_NONE);
+
+ this_cpu_write(paravirt_lazy_mode, mode);
+}
+
+static void leave_lazy(enum paravirt_lazy_mode mode)
+{
+ BUG_ON(this_cpu_read(paravirt_lazy_mode) != mode);
+
+ this_cpu_write(paravirt_lazy_mode, PARAVIRT_LAZY_NONE);
+}
+
+void paravirt_enter_lazy_mmu(void)
+{
+ enter_lazy(PARAVIRT_LAZY_MMU);
+}
+
+void paravirt_leave_lazy_mmu(void)
+{
+ leave_lazy(PARAVIRT_LAZY_MMU);
+}
+
+void paravirt_flush_lazy_mmu(void)
+{
+ preempt_disable();
+
+ if (paravirt_get_lazy_mode() == PARAVIRT_LAZY_MMU) {
+ arch_leave_lazy_mmu_mode();
+ arch_enter_lazy_mmu_mode();
+ }
+
+ preempt_enable();
+}
+
+void paravirt_start_context_switch(struct task_struct *prev)
+{
+ BUG_ON(preemptible());
+
+ if (this_cpu_read(paravirt_lazy_mode) == PARAVIRT_LAZY_MMU) {
+ arch_leave_lazy_mmu_mode();
+ set_ti_thread_flag(task_thread_info(prev),
+ TIF_LAZY_MMU_UPDATES);
+ }
+ enter_lazy(PARAVIRT_LAZY_CPU);
+}
+
+void paravirt_end_context_switch(struct task_struct *next)
+{
+ BUG_ON(preemptible());
+
+ leave_lazy(PARAVIRT_LAZY_CPU);
+
+ if (test_and_clear_ti_thread_flag(task_thread_info(next),
+ TIF_LAZY_MMU_UPDATES))
+ arch_enter_lazy_mmu_mode();
+}
+
+enum paravirt_lazy_mode paravirt_get_lazy_mode(void)
+{
+ if (in_interrupt())
+ return PARAVIRT_LAZY_NONE;
+
+ return this_cpu_read(paravirt_lazy_mode);
+}
+
+static void native_flush_tlb(void)
+{
+ __native_flush_tlb();
+}
+
+/*
+ * Global pages have to be flushed a bit differently. Not a real
+ * performance problem because this does not happen often.
+ */
+static void native_flush_tlb_global(void)
+{
+ __native_flush_tlb_global();
+}
+
+static void native_flush_tlb_single(unsigned long addr)
+{
+ __native_flush_tlb_single(addr);
+}
+
__visible struct pvfull_cpu_ops pvfull_cpu_ops = {
.cpuid = native_cpuid,
.get_debugreg = native_get_debugreg,
@@ -82,6 +173,90 @@ __visible struct pvfull_irq_ops pvfull_irq_ops = {
#endif
};
+#if defined(CONFIG_X86_32) && !defined(CONFIG_X86_PAE)
+/* 32-bit pagetable entries */
+#define PTE_IDENT __PV_IS_CALLEE_SAVE(_paravirt_ident_32)
+#else
+/* 64-bit pagetable entries */
+#define PTE_IDENT __PV_IS_CALLEE_SAVE(_paravirt_ident_64)
+#endif
+
+struct pvfull_mmu_ops pvfull_mmu_ops = {
+ .read_cr2 = native_read_cr2,
+ .write_cr2 = native_write_cr2,
+ .read_cr3 = native_read_cr3,
+ .write_cr3 = native_write_cr3,
+
+ .flush_tlb_user = native_flush_tlb,
+ .flush_tlb_kernel = native_flush_tlb_global,
+ .flush_tlb_single = native_flush_tlb_single,
+
+ .pgd_alloc = __paravirt_pgd_alloc,
+ .pgd_free = paravirt_nop,
+
+ .alloc_pte = paravirt_nop,
+ .alloc_pmd = paravirt_nop,
+ .alloc_pud = paravirt_nop,
+ .alloc_p4d = paravirt_nop,
+ .release_pte = paravirt_nop,
+ .release_pmd = paravirt_nop,
+ .release_pud = paravirt_nop,
+ .release_p4d = paravirt_nop,
+
+ .set_pte = native_set_pte,
+ .set_pte_at = native_set_pte_at,
+ .set_pmd = native_set_pmd,
+ .set_pmd_at = native_set_pmd_at,
+ .pte_update = paravirt_nop,
+
+ .ptep_modify_prot_start = __ptep_modify_prot_start,
+ .ptep_modify_prot_commit = __ptep_modify_prot_commit,
+
+#if CONFIG_PGTABLE_LEVELS >= 3
+#ifdef CONFIG_X86_PAE
+ .set_pte_atomic = native_set_pte_atomic,
+ .pte_clear = native_pte_clear,
+ .pmd_clear = native_pmd_clear,
+#endif
+ .set_pud = native_set_pud,
+ .set_pud_at = native_set_pud_at,
+
+ .pmd_val = PTE_IDENT,
+ .make_pmd = PTE_IDENT,
+
+#if CONFIG_PGTABLE_LEVELS >= 4
+ .pud_val = PTE_IDENT,
+ .make_pud = PTE_IDENT,
+
+ .set_p4d = native_set_p4d,
+
+#if CONFIG_PGTABLE_LEVELS >= 5
+ .p4d_val = PTE_IDENT,
+ .make_p4d = PTE_IDENT,
+
+ .set_pgd = native_set_pgd,
+#endif /* CONFIG_PGTABLE_LEVELS >= 5 */
+#endif /* CONFIG_PGTABLE_LEVELS >= 4 */
+#endif /* CONFIG_PGTABLE_LEVELS >= 3 */
+
+ .pte_val = PTE_IDENT,
+ .pgd_val = PTE_IDENT,
+
+ .make_pte = PTE_IDENT,
+ .make_pgd = PTE_IDENT,
+
+ .dup_mmap = paravirt_nop,
+ .activate_mm = paravirt_nop,
+
+ .lazy_mode = {
+ .enter = paravirt_nop,
+ .leave = paravirt_nop,
+ .flush = paravirt_nop,
+ },
+
+ .set_fixmap = native_set_fixmap,
+};
+
/* At this point, native_get/set_debugreg has real function entries */
NOKPROBE_SYMBOL(native_get_debugreg);
NOKPROBE_SYMBOL(native_set_debugreg);
@@ -89,3 +264,4 @@ NOKPROBE_SYMBOL(native_load_idt);
EXPORT_SYMBOL(pvfull_cpu_ops);
EXPORT_SYMBOL_GPL(pvfull_irq_ops);
+EXPORT_SYMBOL(pvfull_mmu_ops);
diff --git a/arch/x86/kernel/paravirt_patch_32.c b/arch/x86/kernel/paravirt_patch_32.c
index ccb75951aed5..b5f93cb0d05f 100644
--- a/arch/x86/kernel/paravirt_patch_32.c
+++ b/arch/x86/kernel/paravirt_patch_32.c
@@ -4,10 +4,10 @@ DEF_NATIVE(pv_irq_ops, irq_disable, "cli");
DEF_NATIVE(pv_irq_ops, irq_enable, "sti");
DEF_NATIVE(pv_irq_ops, restore_fl, "push %eax; popf");
DEF_NATIVE(pv_irq_ops, save_fl, "pushf; pop %eax");
-DEF_NATIVE(pv_mmu_ops, read_cr2, "mov %cr2, %eax");
-DEF_NATIVE(pv_mmu_ops, write_cr3, "mov %eax, %cr3");
-DEF_NATIVE(pv_mmu_ops, read_cr3, "mov %cr3, %eax");
#ifdef CONFIG_PARAVIRT_FULL
+DEF_NATIVE(pvfull_mmu_ops, read_cr2, "mov %cr2, %eax");
+DEF_NATIVE(pvfull_mmu_ops, write_cr3, "mov %eax, %cr3");
+DEF_NATIVE(pvfull_mmu_ops, read_cr3, "mov %cr3, %eax");
DEF_NATIVE(pvfull_cpu_ops, iret, "iret");
#endif
@@ -47,10 +47,10 @@ unsigned native_patch(u8 type, u16 clobbers, void *ibuf,
PATCH_SITE(pv_irq_ops, irq_enable);
PATCH_SITE(pv_irq_ops, restore_fl);
PATCH_SITE(pv_irq_ops, save_fl);
- PATCH_SITE(pv_mmu_ops, read_cr2);
- PATCH_SITE(pv_mmu_ops, read_cr3);
- PATCH_SITE(pv_mmu_ops, write_cr3);
#ifdef CONFIG_PARAVIRT_FULL
+ PATCH_SITE(pvfull_mmu_ops, read_cr2);
+ PATCH_SITE(pvfull_mmu_ops, read_cr3);
+ PATCH_SITE(pvfull_mmu_ops, write_cr3);
PATCH_SITE(pvfull_cpu_ops, iret);
#endif
#if defined(CONFIG_PARAVIRT_SPINLOCKS)
diff --git a/arch/x86/kernel/paravirt_patch_64.c b/arch/x86/kernel/paravirt_patch_64.c
index 00d5c77d23a7..473688054f0b 100644
--- a/arch/x86/kernel/paravirt_patch_64.c
+++ b/arch/x86/kernel/paravirt_patch_64.c
@@ -6,15 +6,15 @@ DEF_NATIVE(pv_irq_ops, irq_disable, "cli");
DEF_NATIVE(pv_irq_ops, irq_enable, "sti");
DEF_NATIVE(pv_irq_ops, restore_fl, "pushq %rdi; popfq");
DEF_NATIVE(pv_irq_ops, save_fl, "pushfq; popq %rax");
-DEF_NATIVE(pv_mmu_ops, read_cr2, "movq %cr2, %rax");
-DEF_NATIVE(pv_mmu_ops, read_cr3, "movq %cr3, %rax");
-DEF_NATIVE(pv_mmu_ops, write_cr3, "movq %rdi, %cr3");
-DEF_NATIVE(pv_mmu_ops, flush_tlb_single, "invlpg (%rdi)");
DEF_NATIVE(, mov32, "mov %edi, %eax");
DEF_NATIVE(, mov64, "mov %rdi, %rax");
#ifdef CONFIG_PARAVIRT_FULL
+DEF_NATIVE(pvfull_mmu_ops, read_cr2, "movq %cr2, %rax");
+DEF_NATIVE(pvfull_mmu_ops, read_cr3, "movq %cr3, %rax");
+DEF_NATIVE(pvfull_mmu_ops, write_cr3, "movq %rdi, %cr3");
+DEF_NATIVE(pvfull_mmu_ops, flush_tlb_single, "invlpg (%rdi)");
DEF_NATIVE(pvfull_cpu_ops, wbinvd, "wbinvd");
DEF_NATIVE(pvfull_cpu_ops, usergs_sysret64, "swapgs; sysretq");
DEF_NATIVE(pvfull_cpu_ops, swapgs, "swapgs");
@@ -56,11 +56,11 @@ unsigned native_patch(u8 type, u16 clobbers, void *ibuf,
PATCH_SITE(pv_irq_ops, save_fl);
PATCH_SITE(pv_irq_ops, irq_enable);
PATCH_SITE(pv_irq_ops, irq_disable);
- PATCH_SITE(pv_mmu_ops, read_cr2);
- PATCH_SITE(pv_mmu_ops, read_cr3);
- PATCH_SITE(pv_mmu_ops, write_cr3);
- PATCH_SITE(pv_mmu_ops, flush_tlb_single);
#ifdef CONFIG_PARAVIRT_FULL
+ PATCH_SITE(pvfull_mmu_ops, read_cr2);
+ PATCH_SITE(pvfull_mmu_ops, read_cr3);
+ PATCH_SITE(pvfull_mmu_ops, write_cr3);
+ PATCH_SITE(pvfull_mmu_ops, flush_tlb_single);
PATCH_SITE(pvfull_cpu_ops, usergs_sysret64);
PATCH_SITE(pvfull_cpu_ops, swapgs);
PATCH_SITE(pvfull_cpu_ops, wbinvd);
diff --git a/arch/x86/lguest/boot.c b/arch/x86/lguest/boot.c
index bf8773854ab0..b9757853cf79 100644
--- a/arch/x86/lguest/boot.c
+++ b/arch/x86/lguest/boot.c
@@ -753,7 +753,7 @@ static void lguest_pmd_clear(pmd_t *pmdp)
#endif
/*
- * Unfortunately for Lguest, the pv_mmu_ops for page tables were based on
+ * Unfortunately for Lguest, the pvfull_mmu_ops for page tables were based on
* native page table operations. On native hardware you can set a new page
* table entry whenever you want, but if you want to remove one you have to do
* a TLB flush (a TLB is a little cache of page table entries kept by the CPU).
@@ -1431,25 +1431,25 @@ __init void lguest_init(void)
pvfull_cpu_ops.end_context_switch = lguest_end_context_switch;
/* Pagetable management */
- pv_mmu_ops.write_cr3 = lguest_write_cr3;
- pv_mmu_ops.flush_tlb_user = lguest_flush_tlb_user;
- pv_mmu_ops.flush_tlb_single = lguest_flush_tlb_single;
- pv_mmu_ops.flush_tlb_kernel = lguest_flush_tlb_kernel;
- pv_mmu_ops.set_pte = lguest_set_pte;
- pv_mmu_ops.set_pte_at = lguest_set_pte_at;
- pv_mmu_ops.set_pmd = lguest_set_pmd;
+ pvfull_mmu_ops.write_cr3 = lguest_write_cr3;
+ pvfull_mmu_ops.flush_tlb_user = lguest_flush_tlb_user;
+ pvfull_mmu_ops.flush_tlb_single = lguest_flush_tlb_single;
+ pvfull_mmu_ops.flush_tlb_kernel = lguest_flush_tlb_kernel;
+ pvfull_mmu_ops.set_pte = lguest_set_pte;
+ pvfull_mmu_ops.set_pte_at = lguest_set_pte_at;
+ pvfull_mmu_ops.set_pmd = lguest_set_pmd;
#ifdef CONFIG_X86_PAE
- pv_mmu_ops.set_pte_atomic = lguest_set_pte_atomic;
- pv_mmu_ops.pte_clear = lguest_pte_clear;
- pv_mmu_ops.pmd_clear = lguest_pmd_clear;
- pv_mmu_ops.set_pud = lguest_set_pud;
+ pvfull_mmu_ops.set_pte_atomic = lguest_set_pte_atomic;
+ pvfull_mmu_ops.pte_clear = lguest_pte_clear;
+ pvfull_mmu_ops.pmd_clear = lguest_pmd_clear;
+ pvfull_mmu_ops.set_pud = lguest_set_pud;
#endif
- pv_mmu_ops.read_cr2 = lguest_read_cr2;
- pv_mmu_ops.read_cr3 = lguest_read_cr3;
- pv_mmu_ops.lazy_mode.enter = paravirt_enter_lazy_mmu;
- pv_mmu_ops.lazy_mode.leave = lguest_leave_lazy_mmu_mode;
- pv_mmu_ops.lazy_mode.flush = paravirt_flush_lazy_mmu;
- pv_mmu_ops.pte_update = lguest_pte_update;
+ pvfull_mmu_ops.read_cr2 = lguest_read_cr2;
+ pvfull_mmu_ops.read_cr3 = lguest_read_cr3;
+ pvfull_mmu_ops.lazy_mode.enter = paravirt_enter_lazy_mmu;
+ pvfull_mmu_ops.lazy_mode.leave = lguest_leave_lazy_mmu_mode;
+ pvfull_mmu_ops.lazy_mode.flush = paravirt_flush_lazy_mmu;
+ pvfull_mmu_ops.pte_update = lguest_pte_update;
#ifdef CONFIG_X86_LOCAL_APIC
/* APIC read/write intercepts */
diff --git a/arch/x86/xen/enlighten_pv.c b/arch/x86/xen/enlighten_pv.c
index 89cd5cc5f1a2..9badad9f82e0 100644
--- a/arch/x86/xen/enlighten_pv.c
+++ b/arch/x86/xen/enlighten_pv.c
@@ -1002,7 +1002,7 @@ void xen_setup_vcpu_info_placement(void)
pv_irq_ops.restore_fl = __PV_IS_CALLEE_SAVE(xen_restore_fl_direct);
pv_irq_ops.irq_disable = __PV_IS_CALLEE_SAVE(xen_irq_disable_direct);
pv_irq_ops.irq_enable = __PV_IS_CALLEE_SAVE(xen_irq_enable_direct);
- pv_mmu_ops.read_cr2 = xen_read_cr2_direct;
+ pvfull_mmu_ops.read_cr2 = xen_read_cr2_direct;
}
}
@@ -1316,8 +1316,10 @@ asmlinkage __visible void __init xen_start_kernel(void)
#endif
if (xen_feature(XENFEAT_mmu_pt_update_preserve_ad)) {
- pv_mmu_ops.ptep_modify_prot_start = xen_ptep_modify_prot_start;
- pv_mmu_ops.ptep_modify_prot_commit = xen_ptep_modify_prot_commit;
+ pvfull_mmu_ops.ptep_modify_prot_start =
+ xen_ptep_modify_prot_start;
+ pvfull_mmu_ops.ptep_modify_prot_commit =
+ xen_ptep_modify_prot_commit;
}
machine_ops = xen_machine_ops;
diff --git a/arch/x86/xen/mmu_pv.c b/arch/x86/xen/mmu_pv.c
index 7397d8b8459d..7be3e21a4dac 100644
--- a/arch/x86/xen/mmu_pv.c
+++ b/arch/x86/xen/mmu_pv.c
@@ -2252,7 +2252,7 @@ static void __init xen_write_cr3_init(unsigned long cr3)
set_page_prot(initial_page_table, PAGE_KERNEL);
set_page_prot(initial_kernel_pmd, PAGE_KERNEL);
- pv_mmu_ops.write_cr3 = &xen_write_cr3;
+ pvfull_mmu_ops.write_cr3 = &xen_write_cr3;
}
/*
@@ -2406,27 +2406,27 @@ static void __init xen_post_allocator_init(void)
if (xen_feature(XENFEAT_auto_translated_physmap))
return;
- pv_mmu_ops.set_pte = xen_set_pte;
- pv_mmu_ops.set_pmd = xen_set_pmd;
- pv_mmu_ops.set_pud = xen_set_pud;
+ pvfull_mmu_ops.set_pte = xen_set_pte;
+ pvfull_mmu_ops.set_pmd = xen_set_pmd;
+ pvfull_mmu_ops.set_pud = xen_set_pud;
#if CONFIG_PGTABLE_LEVELS >= 4
- pv_mmu_ops.set_p4d = xen_set_p4d;
+ pvfull_mmu_ops.set_p4d = xen_set_p4d;
#endif
/* This will work as long as patching hasn't happened yet
(which it hasn't) */
- pv_mmu_ops.alloc_pte = xen_alloc_pte;
- pv_mmu_ops.alloc_pmd = xen_alloc_pmd;
- pv_mmu_ops.release_pte = xen_release_pte;
- pv_mmu_ops.release_pmd = xen_release_pmd;
+ pvfull_mmu_ops.alloc_pte = xen_alloc_pte;
+ pvfull_mmu_ops.alloc_pmd = xen_alloc_pmd;
+ pvfull_mmu_ops.release_pte = xen_release_pte;
+ pvfull_mmu_ops.release_pmd = xen_release_pmd;
#if CONFIG_PGTABLE_LEVELS >= 4
- pv_mmu_ops.alloc_pud = xen_alloc_pud;
- pv_mmu_ops.release_pud = xen_release_pud;
+ pvfull_mmu_ops.alloc_pud = xen_alloc_pud;
+ pvfull_mmu_ops.release_pud = xen_release_pud;
#endif
- pv_mmu_ops.make_pte = PV_CALLEE_SAVE(xen_make_pte);
+ pvfull_mmu_ops.make_pte = PV_CALLEE_SAVE(xen_make_pte);
#ifdef CONFIG_X86_64
- pv_mmu_ops.write_cr3 = &xen_write_cr3;
+ pvfull_mmu_ops.write_cr3 = &xen_write_cr3;
SetPagePinned(virt_to_page(level3_user_vsyscall));
#endif
xen_mark_init_mm_pinned();
@@ -2440,7 +2440,7 @@ static void xen_leave_lazy_mmu(void)
preempt_enable();
}
-static const struct pv_mmu_ops xen_mmu_ops __initconst = {
+static const struct pvfull_mmu_ops xen_mmu_ops __initconst = {
.read_cr2 = xen_read_cr2,
.write_cr2 = xen_write_cr2,
@@ -2450,7 +2450,6 @@ static const struct pv_mmu_ops xen_mmu_ops __initconst = {
.flush_tlb_user = xen_flush_tlb,
.flush_tlb_kernel = xen_flush_tlb,
.flush_tlb_single = xen_flush_tlb_single,
- .flush_tlb_others = xen_flush_tlb_others,
.pte_update = paravirt_nop,
@@ -2496,7 +2495,6 @@ static const struct pv_mmu_ops xen_mmu_ops __initconst = {
.activate_mm = xen_activate_mm,
.dup_mmap = xen_dup_mmap,
- .exit_mmap = xen_exit_mmap,
.lazy_mode = {
.enter = paravirt_enter_lazy_mmu,
@@ -2514,7 +2512,9 @@ void __init xen_init_mmu_ops(void)
if (xen_feature(XENFEAT_auto_translated_physmap))
return;
- pv_mmu_ops = xen_mmu_ops;
+ pvfull_mmu_ops = xen_mmu_ops;
+ pv_mmu_ops.flush_tlb_others = xen_flush_tlb_others;
+ pv_mmu_ops.exit_mmap = xen_exit_mmap;
memset(dummy_mapping, 0xff, PAGE_SIZE);
}
--
2.12.0
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