| Message ID | 20181207112304.19765-5-ard.biesheuvel@linaro.org |
|---|---|
| State | Superseded |
| Headers | show |
| Series | introduce MAX_ALLOC_ADDRESS to limit boot time allocations | expand |
On 12/07/18 12:23, Ard Biesheuvel wrote: > When creating the page tables for the 1:1 mapping, ensure that we don't > attempt to map more than what is architecturally permitted when running > with 4 KB pages, which is 48 bits of VA. This will be reflected in the > value of MAX_ALLOC_ADDRESS once we override it for AArch64, so use that > macro instead of MAX_ADDRESS. > > Contributed-under: TianoCore Contribution Agreement 1.1 > Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> > --- > ArmPkg/Library/ArmMmuLib/AArch64/ArmMmuLibCore.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/ArmPkg/Library/ArmMmuLib/AArch64/ArmMmuLibCore.c b/ArmPkg/Library/ArmMmuLib/AArch64/ArmMmuLibCore.c > index 5403b8d4070e..e41044142ef4 100644 > --- a/ArmPkg/Library/ArmMmuLib/AArch64/ArmMmuLibCore.c > +++ b/ArmPkg/Library/ArmMmuLib/AArch64/ArmMmuLibCore.c > @@ -612,7 +612,7 @@ ArmConfigureMmu ( > // use of 4 KB pages. > // > MaxAddress = MIN (LShiftU64 (1ULL, ArmGetPhysicalAddressBits ()) - 1, > - MAX_ADDRESS); > + MAX_ALLOC_ADDRESS); > > // Lookup the Table Level to get the information > LookupAddresstoRootTable (MaxAddress, &T0SZ, &RootTableEntryCount); > Reviewed-by: Laszlo Ersek <lersek@redhat.com> _______________________________________________ edk2-devel mailing list edk2-devel@lists.01.org https://lists.01.org/mailman/listinfo/edk2-devel
diff --git a/ArmPkg/Library/ArmMmuLib/AArch64/ArmMmuLibCore.c b/ArmPkg/Library/ArmMmuLib/AArch64/ArmMmuLibCore.c index 5403b8d4070e..e41044142ef4 100644 --- a/ArmPkg/Library/ArmMmuLib/AArch64/ArmMmuLibCore.c +++ b/ArmPkg/Library/ArmMmuLib/AArch64/ArmMmuLibCore.c @@ -612,7 +612,7 @@ ArmConfigureMmu ( // use of 4 KB pages. // MaxAddress = MIN (LShiftU64 (1ULL, ArmGetPhysicalAddressBits ()) - 1, - MAX_ADDRESS); + MAX_ALLOC_ADDRESS); // Lookup the Table Level to get the information LookupAddresstoRootTable (MaxAddress, &T0SZ, &RootTableEntryCount);
When creating the page tables for the 1:1 mapping, ensure that we don't attempt to map more than what is architecturally permitted when running with 4 KB pages, which is 48 bits of VA. This will be reflected in the value of MAX_ALLOC_ADDRESS once we override it for AArch64, so use that macro instead of MAX_ADDRESS. Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> --- ArmPkg/Library/ArmMmuLib/AArch64/ArmMmuLibCore.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) -- 2.19.2 _______________________________________________ edk2-devel mailing list edk2-devel@lists.01.org https://lists.01.org/mailman/listinfo/edk2-devel