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FlagPresent must be explicitly specified in calls to Map

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This commit is contained in:
Achilleas Anagnostopoulos 2017-06-22 05:41:32 +01:00
parent 37ba897ca4
commit 71dfc9ae70
1 changed files with 2 additions and 2 deletions
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4
kernel/mem/vmm/map.go
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@ -37,7 +37,7 @@ func Map(page Page, frame pmm.Frame, flags PageTableEntryFlag) *kernel.Error {
if pteLevel == pageLevels-1 { if pteLevel == pageLevels-1 {
*pte = 0 *pte = 0
pte.SetFrame(frame) pte.SetFrame(frame)
pte.SetFlags(FlagPresent | flags) pte.SetFlags(flags)
flushTLBEntryFn(page.Address()) flushTLBEntryFn(page.Address())
return true return true
} }
@ -77,7 +77,7 @@ func Map(page Page, frame pmm.Frame, flags PageTableEntryFlag) *kernel.Error {
// mapping mechanism is primarily used by the kernel to access and initialize // mapping mechanism is primarily used by the kernel to access and initialize
// inactive page tables. // inactive page tables.
func MapTemporary(frame pmm.Frame) (Page, *kernel.Error) { func MapTemporary(frame pmm.Frame) (Page, *kernel.Error) {
if err := Map(PageFromAddress(tempMappingAddr), frame, FlagRW); err != nil { if err := Map(PageFromAddress(tempMappingAddr), frame, FlagPresent|FlagRW); err != nil {
return 0, err return 0, err
} }