diff options
author | Paolo Bonzini <pbonzini@redhat.com> | 2022-01-07 10:42:19 -0500 |
---|---|---|
committer | Paolo Bonzini <pbonzini@redhat.com> | 2022-01-07 10:42:19 -0500 |
commit | 7fd55a02a426ffff378e0acceff4a381bcbbfca0 (patch) | |
tree | 61208dbb0cf7bcd1b05cf9dc5f4e8eef5393b809 /arch/arm64/kvm/hyp/include/nvhe/mm.h | |
parent | 5e4e84f1124aa02643833b7ea40abd5a8e964388 (diff) | |
parent | 1c53a1ae36120997a82f936d044c71075852e521 (diff) |
Merge tag 'kvmarm-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
KVM/arm64 updates for Linux 5.16
- Simplification of the 'vcpu first run' by integrating it into
KVM's 'pid change' flow
- Refactoring of the FP and SVE state tracking, also leading to
a simpler state and less shared data between EL1 and EL2 in
the nVHE case
- Tidy up the header file usage for the nvhe hyp object
- New HYP unsharing mechanism, finally allowing pages to be
unmapped from the Stage-1 EL2 page-tables
- Various pKVM cleanups around refcounting and sharing
- A couple of vgic fixes for bugs that would trigger once
the vcpu xarray rework is merged, but not sooner
- Add minimal support for ARMv8.7's PMU extension
- Rework kvm_pgtable initialisation ahead of the NV work
- New selftest for IRQ injection
- Teach selftests about the lack of default IPA space and
page sizes
- Expand sysreg selftest to deal with Pointer Authentication
- The usual bunch of cleanups and doc update
Diffstat (limited to 'arch/arm64/kvm/hyp/include/nvhe/mm.h')
-rw-r--r-- | arch/arm64/kvm/hyp/include/nvhe/mm.h | 59 |
1 files changed, 0 insertions, 59 deletions
diff --git a/arch/arm64/kvm/hyp/include/nvhe/mm.h b/arch/arm64/kvm/hyp/include/nvhe/mm.h index c9a8f535212e..2d08510c6cc1 100644 --- a/arch/arm64/kvm/hyp/include/nvhe/mm.h +++ b/arch/arm64/kvm/hyp/include/nvhe/mm.h @@ -10,13 +10,8 @@ #include <nvhe/memory.h> #include <nvhe/spinlock.h> -#define HYP_MEMBLOCK_REGIONS 128 -extern struct memblock_region kvm_nvhe_sym(hyp_memory)[]; -extern unsigned int kvm_nvhe_sym(hyp_memblock_nr); extern struct kvm_pgtable pkvm_pgtable; extern hyp_spinlock_t pkvm_pgd_lock; -extern struct hyp_pool hpool; -extern u64 __io_map_base; int hyp_create_idmap(u32 hyp_va_bits); int hyp_map_vectors(void); @@ -39,58 +34,4 @@ static inline void hyp_vmemmap_range(phys_addr_t phys, unsigned long size, *end = ALIGN(*end, PAGE_SIZE); } -static inline unsigned long __hyp_pgtable_max_pages(unsigned long nr_pages) -{ - unsigned long total = 0, i; - - /* Provision the worst case scenario */ - for (i = 0; i < KVM_PGTABLE_MAX_LEVELS; i++) { - nr_pages = DIV_ROUND_UP(nr_pages, PTRS_PER_PTE); - total += nr_pages; - } - - return total; -} - -static inline unsigned long __hyp_pgtable_total_pages(void) -{ - unsigned long res = 0, i; - - /* Cover all of memory with page-granularity */ - for (i = 0; i < kvm_nvhe_sym(hyp_memblock_nr); i++) { - struct memblock_region *reg = &kvm_nvhe_sym(hyp_memory)[i]; - res += __hyp_pgtable_max_pages(reg->size >> PAGE_SHIFT); - } - - return res; -} - -static inline unsigned long hyp_s1_pgtable_pages(void) -{ - unsigned long res; - - res = __hyp_pgtable_total_pages(); - - /* Allow 1 GiB for private mappings */ - res += __hyp_pgtable_max_pages(SZ_1G >> PAGE_SHIFT); - - return res; -} - -static inline unsigned long host_s2_pgtable_pages(void) -{ - unsigned long res; - - /* - * Include an extra 16 pages to safely upper-bound the worst case of - * concatenated pgds. - */ - res = __hyp_pgtable_total_pages() + 16; - - /* Allow 1 GiB for MMIO mappings */ - res += __hyp_pgtable_max_pages(SZ_1G >> PAGE_SHIFT); - - return res; -} - #endif /* __KVM_HYP_MM_H */ |