.../MemoryAllocationLib.c | 57 +++++++++++++++++++ 1 file changed, 57 insertions(+)
Add implementation of ReallocatePool which is defined in the
MemoryAllocationLib header file to allow components to not
need special handling for PrePi module types.
Signed-off-by: Jeff Brasen <jbrasen@nvidia.com>
---
.../MemoryAllocationLib.c | 57 +++++++++++++++++++
1 file changed, 57 insertions(+)
diff --git a/EmbeddedPkg/Library/PrePiMemoryAllocationLib/MemoryAllocationLib.c b/EmbeddedPkg/Library/PrePiMemoryAllocationLib/MemoryAllocationLib.c
index 08a0add340..39fbe243dd 100644
--- a/EmbeddedPkg/Library/PrePiMemoryAllocationLib/MemoryAllocationLib.c
+++ b/EmbeddedPkg/Library/PrePiMemoryAllocationLib/MemoryAllocationLib.c
@@ -269,3 +269,60 @@ FreePool (
{
// Not implemented yet
}
+
+/**
+ Reallocates a buffer of type EfiBootServicesData.
+
+ Allocates and zeros the number bytes specified by NewSize from memory of type
+ EfiBootServicesData. If OldBuffer is not NULL, then the smaller of OldSize and
+ NewSize bytes are copied from OldBuffer to the newly allocated buffer, and
+ OldBuffer is freed. A pointer to the newly allocated buffer is returned.
+ If NewSize is 0, then a valid buffer of 0 size is returned. If there is not
+ enough memory remaining to satisfy the request, then NULL is returned.
+
+ If the allocation of the new buffer is successful and the smaller of NewSize and OldSize
+ is greater than (MAX_ADDRESS - OldBuffer + 1), then ASSERT().
+
+ @param OldSize The size, in bytes, of OldBuffer.
+ @param NewSize The size, in bytes, of the buffer to reallocate.
+ @param OldBuffer The buffer to copy to the allocated buffer. This is an optional
+ parameter that may be NULL.
+
+ @return A pointer to the allocated buffer or NULL if allocation fails.
+
+**/
+VOID *
+EFIAPI
+ReallocatePool (
+ IN UINTN OldSize,
+ IN UINTN NewSize,
+ IN VOID *OldBuffer OPTIONAL
+ )
+{
+ VOID *NewBuffer;
+
+ // Validate the OldBuffer is HobAllocated.
+ DEBUG_CODE_BEGIN ();
+ EFI_HOB_HANDOFF_INFO_TABLE *HandOffHob;
+
+ if (OldBuffer != NULL) {
+ HandOffHob = GetHobList ();
+ ASSERT (((EFI_PHYSICAL_ADDRESS)OldBuffer >= HandOffHob->EfiMemoryBottom));
+ ASSERT (((EFI_PHYSICAL_ADDRESS)(OldBuffer + OldSize) <= HandOffHob->EfiFreeMemoryBottom));
+ }
+
+ DEBUG_CODE_END ();
+
+ // If new buffer would be smaller just return old buffer as FreePool isn't supported.
+ if ((OldBuffer != NULL) && (OldSize >= NewSize)) {
+ return OldBuffer;
+ }
+
+ NewBuffer = AllocateZeroPool (NewSize);
+ if ((NewBuffer != NULL) && (OldBuffer != NULL)) {
+ CopyMem (NewBuffer, OldBuffer, MIN (OldSize, NewSize));
+ FreePool (OldBuffer);
+ }
+
+ return NewBuffer;
+}
--
2.34.1
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[AMD Official Use Only - General] Reviewed-by: Abner Chang <abner.chang@amd.com> > -----Original Message----- > From: Jeff Brasen <jbrasen@nvidia.com> > Sent: Monday, December 11, 2023 11:48 PM > To: devel@edk2.groups.io > Cc: Chang, Abner <Abner.Chang@amd.com>; ardb+tianocore@kernel.org; > quic_llindhol@quicinc.com; Jeff Brasen <jbrasen@nvidia.com> > Subject: [PATCH] EmbeddedPkg/PrePiMemoryAllocationLib: Add > ReallocatePool > > Caution: This message originated from an External Source. Use proper caution > when opening attachments, clicking links, or responding. > > > Add implementation of ReallocatePool which is defined in the > MemoryAllocationLib header file to allow components to not > need special handling for PrePi module types. > > Signed-off-by: Jeff Brasen <jbrasen@nvidia.com> > --- > .../MemoryAllocationLib.c | 57 +++++++++++++++++++ > 1 file changed, 57 insertions(+) > > diff --git > a/EmbeddedPkg/Library/PrePiMemoryAllocationLib/MemoryAllocationLib.c > b/EmbeddedPkg/Library/PrePiMemoryAllocationLib/MemoryAllocationLib.c > index 08a0add340..39fbe243dd 100644 > --- > a/EmbeddedPkg/Library/PrePiMemoryAllocationLib/MemoryAllocationLib.c > +++ > b/EmbeddedPkg/Library/PrePiMemoryAllocationLib/MemoryAllocationLib.c > @@ -269,3 +269,60 @@ FreePool ( > { > // Not implemented yet > } > + > +/** > + Reallocates a buffer of type EfiBootServicesData. > + > + Allocates and zeros the number bytes specified by NewSize from memory of > type > + EfiBootServicesData. If OldBuffer is not NULL, then the smaller of OldSize > and > + NewSize bytes are copied from OldBuffer to the newly allocated buffer, and > + OldBuffer is freed. A pointer to the newly allocated buffer is returned. > + If NewSize is 0, then a valid buffer of 0 size is returned. If there is not > + enough memory remaining to satisfy the request, then NULL is returned. > + > + If the allocation of the new buffer is successful and the smaller of NewSize > and OldSize > + is greater than (MAX_ADDRESS - OldBuffer + 1), then ASSERT(). > + > + @param OldSize The size, in bytes, of OldBuffer. > + @param NewSize The size, in bytes, of the buffer to reallocate. > + @param OldBuffer The buffer to copy to the allocated buffer. This is an > optional > + parameter that may be NULL. > + > + @return A pointer to the allocated buffer or NULL if allocation fails. > + > +**/ > +VOID * > +EFIAPI > +ReallocatePool ( > + IN UINTN OldSize, > + IN UINTN NewSize, > + IN VOID *OldBuffer OPTIONAL > + ) > +{ > + VOID *NewBuffer; > + > + // Validate the OldBuffer is HobAllocated. > + DEBUG_CODE_BEGIN (); > + EFI_HOB_HANDOFF_INFO_TABLE *HandOffHob; > + > + if (OldBuffer != NULL) { > + HandOffHob = GetHobList (); > + ASSERT (((EFI_PHYSICAL_ADDRESS)OldBuffer >= HandOffHob- > >EfiMemoryBottom)); > + ASSERT (((EFI_PHYSICAL_ADDRESS)(OldBuffer + OldSize) <= HandOffHob- > >EfiFreeMemoryBottom)); > + } > + > + DEBUG_CODE_END (); > + > + // If new buffer would be smaller just return old buffer as FreePool isn't > supported. > + if ((OldBuffer != NULL) && (OldSize >= NewSize)) { > + return OldBuffer; > + } > + > + NewBuffer = AllocateZeroPool (NewSize); > + if ((NewBuffer != NULL) && (OldBuffer != NULL)) { > + CopyMem (NewBuffer, OldBuffer, MIN (OldSize, NewSize)); > + FreePool (OldBuffer); > + } > + > + return NewBuffer; > +} > -- > 2.34.1 -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#112613): https://edk2.groups.io/g/devel/message/112613 Mute This Topic: https://groups.io/mt/103110962/1787277 Group Owner: devel+owner@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [importer@patchew.org] -=-=-=-=-=-=-=-=-=-=-=-
On Mon, 18 Dec 2023 at 03:23, Chang, Abner <Abner.Chang@amd.com> wrote: > > [AMD Official Use Only - General] > > Reviewed-by: Abner Chang <abner.chang@amd.com> > I've queued this up, along with the mock one - thanks. > > -----Original Message----- > > From: Jeff Brasen <jbrasen@nvidia.com> > > Sent: Monday, December 11, 2023 11:48 PM > > To: devel@edk2.groups.io > > Cc: Chang, Abner <Abner.Chang@amd.com>; ardb+tianocore@kernel.org; > > quic_llindhol@quicinc.com; Jeff Brasen <jbrasen@nvidia.com> > > Subject: [PATCH] EmbeddedPkg/PrePiMemoryAllocationLib: Add > > ReallocatePool > > > > Caution: This message originated from an External Source. Use proper caution > > when opening attachments, clicking links, or responding. > > > > > > Add implementation of ReallocatePool which is defined in the > > MemoryAllocationLib header file to allow components to not > > need special handling for PrePi module types. > > > > Signed-off-by: Jeff Brasen <jbrasen@nvidia.com> > > --- > > .../MemoryAllocationLib.c | 57 +++++++++++++++++++ > > 1 file changed, 57 insertions(+) > > > > diff --git > > a/EmbeddedPkg/Library/PrePiMemoryAllocationLib/MemoryAllocationLib.c > > b/EmbeddedPkg/Library/PrePiMemoryAllocationLib/MemoryAllocationLib.c > > index 08a0add340..39fbe243dd 100644 > > --- > > a/EmbeddedPkg/Library/PrePiMemoryAllocationLib/MemoryAllocationLib.c > > +++ > > b/EmbeddedPkg/Library/PrePiMemoryAllocationLib/MemoryAllocationLib.c > > @@ -269,3 +269,60 @@ FreePool ( > > { > > // Not implemented yet > > } > > + > > +/** > > + Reallocates a buffer of type EfiBootServicesData. > > + > > + Allocates and zeros the number bytes specified by NewSize from memory of > > type > > + EfiBootServicesData. If OldBuffer is not NULL, then the smaller of OldSize > > and > > + NewSize bytes are copied from OldBuffer to the newly allocated buffer, and > > + OldBuffer is freed. A pointer to the newly allocated buffer is returned. > > + If NewSize is 0, then a valid buffer of 0 size is returned. If there is not > > + enough memory remaining to satisfy the request, then NULL is returned. > > + > > + If the allocation of the new buffer is successful and the smaller of NewSize > > and OldSize > > + is greater than (MAX_ADDRESS - OldBuffer + 1), then ASSERT(). > > + > > + @param OldSize The size, in bytes, of OldBuffer. > > + @param NewSize The size, in bytes, of the buffer to reallocate. > > + @param OldBuffer The buffer to copy to the allocated buffer. This is an > > optional > > + parameter that may be NULL. > > + > > + @return A pointer to the allocated buffer or NULL if allocation fails. > > + > > +**/ > > +VOID * > > +EFIAPI > > +ReallocatePool ( > > + IN UINTN OldSize, > > + IN UINTN NewSize, > > + IN VOID *OldBuffer OPTIONAL > > + ) > > +{ > > + VOID *NewBuffer; > > + > > + // Validate the OldBuffer is HobAllocated. > > + DEBUG_CODE_BEGIN (); > > + EFI_HOB_HANDOFF_INFO_TABLE *HandOffHob; > > + > > + if (OldBuffer != NULL) { > > + HandOffHob = GetHobList (); > > + ASSERT (((EFI_PHYSICAL_ADDRESS)OldBuffer >= HandOffHob- > > >EfiMemoryBottom)); > > + ASSERT (((EFI_PHYSICAL_ADDRESS)(OldBuffer + OldSize) <= HandOffHob- > > >EfiFreeMemoryBottom)); > > + } > > + > > + DEBUG_CODE_END (); > > + > > + // If new buffer would be smaller just return old buffer as FreePool isn't > > supported. > > + if ((OldBuffer != NULL) && (OldSize >= NewSize)) { > > + return OldBuffer; > > + } > > + > > + NewBuffer = AllocateZeroPool (NewSize); > > + if ((NewBuffer != NULL) && (OldBuffer != NULL)) { > > + CopyMem (NewBuffer, OldBuffer, MIN (OldSize, NewSize)); > > + FreePool (OldBuffer); > > + } > > + > > + return NewBuffer; > > +} > > -- > > 2.34.1 > -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#112820): https://edk2.groups.io/g/devel/message/112820 Mute This Topic: https://groups.io/mt/103110962/1787277 Group Owner: devel+owner@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [importer@patchew.org] -=-=-=-=-=-=-=-=-=-=-=-
On Thu, 21 Dec 2023 at 15:39, Ard Biesheuvel <ardb@kernel.org> wrote: > > On Mon, 18 Dec 2023 at 03:23, Chang, Abner <Abner.Chang@amd.com> wrote: > > > > [AMD Official Use Only - General] > > > > Reviewed-by: Abner Chang <abner.chang@amd.com> > > > > I've queued this up, along with the mock one - thanks. > Rejected by CI: https://github.com/tianocore/edk2/pull/5184 -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#112821): https://edk2.groups.io/g/devel/message/112821 Mute This Topic: https://groups.io/mt/103110962/1787277 Group Owner: devel+owner@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [importer@patchew.org] -=-=-=-=-=-=-=-=-=-=-=-
Looks like I missed an UINTN cast will fix and push a v2. > -----Original Message----- > From: Ard Biesheuvel <ardb@kernel.org> > Sent: Thursday, December 21, 2023 7:54 AM > To: Chang, Abner <Abner.Chang@amd.com> > Cc: Jeff Brasen <jbrasen@nvidia.com>; devel@edk2.groups.io; > ardb+tianocore@kernel.org; quic_llindhol@quicinc.com > Subject: Re: [PATCH] EmbeddedPkg/PrePiMemoryAllocationLib: Add > ReallocatePool > > External email: Use caution opening links or attachments > > > On Thu, 21 Dec 2023 at 15:39, Ard Biesheuvel <ardb@kernel.org> wrote: > > > > On Mon, 18 Dec 2023 at 03:23, Chang, Abner <Abner.Chang@amd.com> > wrote: > > > > > > [AMD Official Use Only - General] > > > > > > Reviewed-by: Abner Chang <abner.chang@amd.com> > > > > > > > I've queued this up, along with the mock one - thanks. > > > > Rejected by CI: > https://github.com/tianocore/edk2/pull/5184 -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#112988): https://edk2.groups.io/g/devel/message/112988 Mute This Topic: https://groups.io/mt/103110962/1787277 Group Owner: devel+owner@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [importer@patchew.org] -=-=-=-=-=-=-=-=-=-=-=-
On Mon, 11 Dec 2023 at 16:48, Jeff Brasen <jbrasen@nvidia.com> wrote: > > Add implementation of ReallocatePool which is defined in the > MemoryAllocationLib header file to allow components to not > need special handling for PrePi module types. > > Signed-off-by: Jeff Brasen <jbrasen@nvidia.com> Reviewed-by: Ard Biesheuvel <ardb@kernel.org> > --- > .../MemoryAllocationLib.c | 57 +++++++++++++++++++ > 1 file changed, 57 insertions(+) > > diff --git a/EmbeddedPkg/Library/PrePiMemoryAllocationLib/MemoryAllocationLib.c b/EmbeddedPkg/Library/PrePiMemoryAllocationLib/MemoryAllocationLib.c > index 08a0add340..39fbe243dd 100644 > --- a/EmbeddedPkg/Library/PrePiMemoryAllocationLib/MemoryAllocationLib.c > +++ b/EmbeddedPkg/Library/PrePiMemoryAllocationLib/MemoryAllocationLib.c > @@ -269,3 +269,60 @@ FreePool ( > { > // Not implemented yet > } > + > +/** > + Reallocates a buffer of type EfiBootServicesData. > + > + Allocates and zeros the number bytes specified by NewSize from memory of type > + EfiBootServicesData. If OldBuffer is not NULL, then the smaller of OldSize and > + NewSize bytes are copied from OldBuffer to the newly allocated buffer, and > + OldBuffer is freed. A pointer to the newly allocated buffer is returned. > + If NewSize is 0, then a valid buffer of 0 size is returned. If there is not > + enough memory remaining to satisfy the request, then NULL is returned. > + > + If the allocation of the new buffer is successful and the smaller of NewSize and OldSize > + is greater than (MAX_ADDRESS - OldBuffer + 1), then ASSERT(). > + > + @param OldSize The size, in bytes, of OldBuffer. > + @param NewSize The size, in bytes, of the buffer to reallocate. > + @param OldBuffer The buffer to copy to the allocated buffer. This is an optional > + parameter that may be NULL. > + > + @return A pointer to the allocated buffer or NULL if allocation fails. > + > +**/ > +VOID * > +EFIAPI > +ReallocatePool ( > + IN UINTN OldSize, > + IN UINTN NewSize, > + IN VOID *OldBuffer OPTIONAL > + ) > +{ > + VOID *NewBuffer; > + > + // Validate the OldBuffer is HobAllocated. > + DEBUG_CODE_BEGIN (); > + EFI_HOB_HANDOFF_INFO_TABLE *HandOffHob; > + > + if (OldBuffer != NULL) { > + HandOffHob = GetHobList (); > + ASSERT (((EFI_PHYSICAL_ADDRESS)OldBuffer >= HandOffHob->EfiMemoryBottom)); > + ASSERT (((EFI_PHYSICAL_ADDRESS)(OldBuffer + OldSize) <= HandOffHob->EfiFreeMemoryBottom)); > + } > + > + DEBUG_CODE_END (); > + > + // If new buffer would be smaller just return old buffer as FreePool isn't supported. > + if ((OldBuffer != NULL) && (OldSize >= NewSize)) { > + return OldBuffer; > + } > + > + NewBuffer = AllocateZeroPool (NewSize); > + if ((NewBuffer != NULL) && (OldBuffer != NULL)) { > + CopyMem (NewBuffer, OldBuffer, MIN (OldSize, NewSize)); > + FreePool (OldBuffer); > + } > + > + return NewBuffer; > +} > -- > 2.34.1 > -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#112383): https://edk2.groups.io/g/devel/message/112383 Mute This Topic: https://groups.io/mt/103110962/1787277 Group Owner: devel+owner@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [importer@patchew.org] -=-=-=-=-=-=-=-=-=-=-=-
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