shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-06 19:08:57 +09:00
Code Issues Packages Projects Releases Wiki Activity

Revert "FROMLIST: KVM: arm64: Fixup hyp stage-1 refcount"

Browse Source 
This reverts commit 59b96bd25e.

This will be replaced by a FROMGIT patch shortly.

Signed-off-by: Quentin Perret <qperret@google.com>
Change-Id: Icde87ddf560b90c55195f3c1250e6079b0795389
This commit is contained in:
Quentin Perret
2022-01-06 10:40:25 +00:00
parent 81ab9e20cf
commit da05d9279e
1 changed files with 5 additions and 16 deletions
Download Patch File Download Diff File Expand all files Collapse all files

21
arch/arm64/kvm/hyp/nvhe/setup.c
View File

@@ -166,7 +166,6 @@ static int finalize_host_mappings_walker(u64 addr, u64 end, u32 level,
enum kvm_pgtable_walk_flags flag,
void * const arg)
{
struct kvm_pgtable_mm_ops *mm_ops = arg;
enum kvm_pgtable_prot prot;
enum pkvm_page_state state;
kvm_pte_t pte = *ptep;
@@ -175,15 +174,6 @@ static int finalize_host_mappings_walker(u64 addr, u64 end, u32 level,
if (!kvm_pte_valid(pte))
return 0;
/*
* Fix-up the refcount for the page-table pages as the early allocator
* was unable to access the hyp_vmemmap and so the buddy allocator has
* initialised the refcount to '1'.
*/
mm_ops->get_page(ptep);
if (flag != KVM_PGTABLE_WALK_LEAF)
return 0;
if (level != (KVM_PGTABLE_MAX_LEVELS - 1))
return -EINVAL;
@@ -216,8 +206,7 @@ static int finalize_host_mappings(void)
{
struct kvm_pgtable_walker walker = {
.cb = finalize_host_mappings_walker,
.flags = KVM_PGTABLE_WALK_LEAF | KVM_PGTABLE_WALK_TABLE_POST,
.arg = pkvm_pgtable.mm_ops,
.flags = KVM_PGTABLE_WALK_LEAF,
};
int i, ret;
@@ -252,6 +241,10 @@ void __noreturn __pkvm_init_finalise(void)
if (ret)
goto out;
ret = finalize_host_mappings();
if (ret)
goto out;
pkvm_pgtable_mm_ops = (struct kvm_pgtable_mm_ops) {
.zalloc_page = hyp_zalloc_hyp_page,
.phys_to_virt = hyp_phys_to_virt,
@@ -261,10 +254,6 @@ void __noreturn __pkvm_init_finalise(void)
};
pkvm_pgtable.mm_ops = &pkvm_pgtable_mm_ops;
ret = finalize_host_mappings();
if (ret)
goto out;
out:
/*
* We tail-called to here from handle___pkvm_init() and will not return,