From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ard Biesheuvel Subject: [PATCH v3 05/27] ArmVirtualizationPkg: allow patchable PCD for device tree base address Date: Tue, 3 Feb 2015 19:19:50 +0000 Message-ID: <1422991212-9257-6-git-send-email-ard.biesheuvel@linaro.org> References: <1422991212-9257-1-git-send-email-ard.biesheuvel@linaro.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1422991212-9257-1-git-send-email-ard.biesheuvel@linaro.org> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: edk2-devel@lists.sourceforge.net, lersek@redhat.com, olivier.martin@arm.com, roy.franz@linaro.org, leif.lindholm@linaro.org, stefano.stabellini@eu.citrix.com, ian.campbell@citrix.com, anthony.perard@citrix.com, christoffer.dall@linaro.org, xen-devel@lists.xen.org, ilias.biris@linaro.org, julien.grall@linaro.org Cc: Ard Biesheuvel List-Id: xen-devel@lists.xenproject.org To allow a runtime self relocating PrePi instance to discover the base address of the device tree at runtime, allow the use of a patchable PCD for gArmVirtualizationTokenSpaceGuid.PcdDeviceTreeInitialBaseAddress. We will not be using the build time patch tool in this case, but using a patchable PCD will make the build system aware that its value is not a compile time constant. Contributed-under: TianoCore Contribution Agreement 1.0 Reviewed-by: Olivier Martin Reviewed-by: Laszlo Ersek Signed-off-by: Ard Biesheuvel --- ArmPlatformPkg/ArmVirtualizationPkg/ArmVirtualizationPkg.dec | 2 +- .../ArmVirtualizationPkg/Library/ArmVirtualizationPlatformLib/Virt.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/ArmPlatformPkg/ArmVirtualizationPkg/ArmVirtualizationPkg.dec b/ArmPlatformPkg/ArmVirtualizationPkg/ArmVirtualizationPkg.dec index 99411548aff6..d83117fc6abe 100644 --- a/ArmPlatformPkg/ArmVirtualizationPkg/ArmVirtualizationPkg.dec +++ b/ArmPlatformPkg/ArmVirtualizationPkg/ArmVirtualizationPkg.dec @@ -34,7 +34,7 @@ gArmVirtualizationTokenSpaceGuid = { 0x0B6F5CA7, 0x4F53, 0x445A, { 0xB7, 0x6E, 0x2E, 0x36, 0x5B, 0x80, 0x63, 0x66 } } gEarlyPL011BaseAddressGuid = { 0xB199DEA9, 0xFD5C, 0x4A84, { 0x80, 0x82, 0x2F, 0x41, 0x70, 0x78, 0x03, 0x05 } } -[PcdsFixedAtBuild] +[PcdsFixedAtBuild, PcdsPatchableInModule] # # This is the physical address where the device tree is expected to be stored # upon first entry into UEFI. This needs to be a FixedAtBuild PCD, so that we diff --git a/ArmPlatformPkg/ArmVirtualizationPkg/Library/ArmVirtualizationPlatformLib/Virt.c b/ArmPlatformPkg/ArmVirtualizationPkg/Library/ArmVirtualizationPlatformLib/Virt.c index aa4ced4582e8..3e3074af72f1 100644 --- a/ArmPlatformPkg/ArmVirtualizationPkg/Library/ArmVirtualizationPlatformLib/Virt.c +++ b/ArmPlatformPkg/ArmVirtualizationPkg/Library/ArmVirtualizationPlatformLib/Virt.c @@ -96,7 +96,7 @@ ArmPlatformInitializeSystemMemory ( ASSERT (HobData != NULL); *HobData = 0; - DeviceTreeBase = (VOID *)(UINTN)FixedPcdGet64 (PcdDeviceTreeInitialBaseAddress); + DeviceTreeBase = (VOID *)(UINTN)PcdGet64 (PcdDeviceTreeInitialBaseAddress); ASSERT (DeviceTreeBase != NULL); // -- 1.8.3.2