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kvm-arm: Cleanup kvm_* wrappers 

Now that we have switched to explicit page table routines,
get rid of the obsolete kvm_* wrappers.

Also, kvm_tlb_flush_vmid_by_ipa is now called only on stage2
page tables, hence get rid of the redundant check.

Cc: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
This commit is contained in:
Suzuki K Poulose 2016-03-22 17:14:25 +00:00 committed by Christoffer Dall
parent 7a1c831ee8
commit 8684e701df
3 changed files with 1 additions and 48 deletions
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16
arch/arm/include/asm/kvm_mmu.h
View File

@ -136,22 +136,6 @@ static inline bool kvm_s2pmd_readonly(pmd_t *pmd)
return (pmd_val(*pmd) & L_PMD_S2_RDWR) == L_PMD_S2_RDONLY;
}
/* Open coded p*d_addr_end that can deal with 64bit addresses */
#define kvm_pgd_addr_end(addr, end) \
({ u64 __boundary = ((addr) + PGDIR_SIZE) & PGDIR_MASK; \
(__boundary - 1 < (end) - 1)? __boundary: (end); \
})
#define kvm_pud_addr_end(addr,end) (end)
#define kvm_pmd_addr_end(addr, end) \
({ u64 __boundary = ((addr) + PMD_SIZE) & PMD_MASK; \
(__boundary - 1 < (end) - 1)? __boundary: (end); \
})
#define kvm_pgd_index(addr) pgd_index(addr)
static inline bool kvm_page_empty(void *ptr)
{
struct page *ptr_page = virt_to_page(ptr);

9
arch/arm/kvm/mmu.c
View File

@ -66,14 +66,7 @@ void kvm_flush_remote_tlbs(struct kvm *kvm)
static void kvm_tlb_flush_vmid_ipa(struct kvm *kvm, phys_addr_t ipa)
{
/*
* This function also gets called when dealing with HYP page
* tables. As HYP doesn't have an associated struct kvm (and
* the HYP page tables are fairly static), we don't do
* anything there.
*/
if (kvm)
kvm_call_hyp(__kvm_tlb_flush_vmid_ipa, kvm, ipa);
kvm_call_hyp(__kvm_tlb_flush_vmid_ipa, kvm, ipa);
}
/*

24
arch/arm64/include/asm/kvm_mmu.h
View File

@ -153,13 +153,6 @@ static inline bool kvm_s2pmd_readonly(pmd_t *pmd)
return (pmd_val(*pmd) & PMD_S2_RDWR) == PMD_S2_RDONLY;
}
#define kvm_pgd_addr_end(addr, end) pgd_addr_end(addr, end)
#define kvm_pud_addr_end(addr, end) pud_addr_end(addr, end)
#define kvm_pmd_addr_end(addr, end) pmd_addr_end(addr, end)
#define kvm_pgd_index(addr) (((addr) >> PGDIR_SHIFT) & (PTRS_PER_S2_PGD - 1))
static inline void *kvm_get_hwpgd(struct kvm *kvm)
{
pgd_t *pgd = kvm->arch.pgd;
@ -232,23 +225,6 @@ static inline bool kvm_page_empty(void *ptr)
return page_count(ptr_page) == 1;
}
#define kvm_pte_table_empty(kvm, ptep) kvm_page_empty(ptep)
#ifdef __PAGETABLE_PMD_FOLDED
#define kvm_pmd_table_empty(kvm, pmdp) (0)
#else
#define kvm_pmd_table_empty(kvm, pmdp) \
(kvm_page_empty(pmdp) && (!(kvm) || KVM_PREALLOC_LEVEL < 2))
#endif
#ifdef __PAGETABLE_PUD_FOLDED
#define kvm_pud_table_empty(kvm, pudp) (0)
#else
#define kvm_pud_table_empty(kvm, pudp) \
(kvm_page_empty(pudp) && (!(kvm) || KVM_PREALLOC_LEVEL < 1))
#endif
#define hyp_pte_table_empty(ptep) kvm_page_empty(ptep)
#ifdef __PAGETABLE_PMD_FOLDED