arm: Remove 32bit KVM host support

That's it. Remove all references to KVM itself, and document
that although it is no more, the ABI between SVC and HYP still
exists.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Acked-by: Olof Johansson <olof@lixom.net>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Will Deacon <will@kernel.org>
Acked-by: Vladimir Murzin <vladimir.murzin@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Christoffer Dall <christoffer.dall@arm.com>

1 files changed, 0 insertions, 75 deletions

diff --git a/arch/arm/include/asm/stage2_pgtable.h b/arch/arm/include/asm/stage2_pgtable.h
deleted file mode 100644
index aaceec7855ec..000000000000
--- a/arch/arm/include/asm/stage2_pgtable.h
+++ /dev/null
@@ -1,75 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Copyright (C) 2016 - ARM Ltd
- *
- * stage2 page table helpers
- */
-
-#ifndef __ARM_S2_PGTABLE_H_
-#define __ARM_S2_PGTABLE_H_
-
-/*
- * kvm_mmu_cache_min_pages() is the number of pages required
- * to install a stage-2 translation. We pre-allocate the entry
- * level table at VM creation. Since we have a 3 level page-table,
- * we need only two pages to add a new mapping.
- */
-#define kvm_mmu_cache_min_pages(kvm)	2
-
-#define stage2_pgd_none(kvm, pgd)		pgd_none(pgd)
-#define stage2_pgd_clear(kvm, pgd)		pgd_clear(pgd)
-#define stage2_pgd_present(kvm, pgd)		pgd_present(pgd)
-#define stage2_pgd_populate(kvm, pgd, pud)	pgd_populate(NULL, pgd, pud)
-#define stage2_pud_offset(kvm, pgd, address)	pud_offset(pgd, address)
-#define stage2_pud_free(kvm, pud)		do { } while (0)
-
-#define stage2_pud_none(kvm, pud)		pud_none(pud)
-#define stage2_pud_clear(kvm, pud)		pud_clear(pud)
-#define stage2_pud_present(kvm, pud)		pud_present(pud)
-#define stage2_pud_populate(kvm, pud, pmd)	pud_populate(NULL, pud, pmd)
-#define stage2_pmd_offset(kvm, pud, address)	pmd_offset(pud, address)
-#define stage2_pmd_free(kvm, pmd)		free_page((unsigned long)pmd)
-
-#define stage2_pud_huge(kvm, pud)		pud_huge(pud)
-
-/* Open coded p*d_addr_end that can deal with 64bit addresses */
-static inline phys_addr_t
-stage2_pgd_addr_end(struct kvm *kvm, phys_addr_t addr, phys_addr_t end)
-{
-	phys_addr_t boundary = (addr + PGDIR_SIZE) & PGDIR_MASK;
-
-	return (boundary - 1 < end - 1) ? boundary : end;
-}
-
-#define stage2_pud_addr_end(kvm, addr, end)	(end)
-
-static inline phys_addr_t
-stage2_pmd_addr_end(struct kvm *kvm, phys_addr_t addr, phys_addr_t end)
-{
-	phys_addr_t boundary = (addr + PMD_SIZE) & PMD_MASK;
-
-	return (boundary - 1 < end - 1) ? boundary : end;
-}
-
-#define stage2_pgd_index(kvm, addr)		pgd_index(addr)
-
-#define stage2_pte_table_empty(kvm, ptep)	kvm_page_empty(ptep)
-#define stage2_pmd_table_empty(kvm, pmdp)	kvm_page_empty(pmdp)
-#define stage2_pud_table_empty(kvm, pudp)	false
-
-static inline bool kvm_stage2_has_pud(struct kvm *kvm)
-{
-	return false;
-}
-
-#define S2_PMD_MASK				PMD_MASK
-#define S2_PMD_SIZE				PMD_SIZE
-#define S2_PUD_MASK				PUD_MASK
-#define S2_PUD_SIZE				PUD_SIZE
-
-static inline bool kvm_stage2_has_pmd(struct kvm *kvm)
-{
-	return true;
-}
-
-#endif	/* __ARM_S2_PGTABLE_H_ */