From 70f89c0b5fa54dc8879e2ece3be2d2596b0b37cc Mon Sep 17 00:00:00 2001 From: Olivier Martin Date: Fri, 26 Jul 2013 17:14:07 +0000 Subject: [PATCH] ArmPkg/ArmLib: Fixed TBLs invalidation in EL1 'tlb alle1' was used to invalidate the TLBs in EL1. Expect this instruction can only be invoked from EL2. The correct instruction to invalidate TLBs in EL1 is 'tlbi vmalle1' - it invalidates the TLBs of the current VMID. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Olivier Martin git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14509 6f19259b-4bc3-4df7-8a09-765794883524 --- ArmPkg/Library/ArmLib/AArch64/AArch64Support.S | 6 +++--- ArmPkg/Library/ArmLib/Common/AArch64/ArmLibSupport.S | 2 +- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/ArmPkg/Library/ArmLib/AArch64/AArch64Support.S b/ArmPkg/Library/ArmLib/AArch64/AArch64Support.S index c45e33d6b9..ad9fdda525 100644 --- a/ArmPkg/Library/ArmLib/AArch64/AArch64Support.S +++ b/ArmPkg/Library/ArmLib/AArch64/AArch64Support.S @@ -123,7 +123,7 @@ ASM_PFX(ArmEnableMmu): 3: mrs x0, sctlr_el3 // Read System control register EL3 4: orr x0, x0, #CTRL_M_BIT // Set MMU enable bit EL1_OR_EL2_OR_EL3(x1) -1: tlbi alle1 +1: tlbi vmalle1 isb msr sctlr_el1, x0 // Write back b 4f @@ -149,7 +149,7 @@ ASM_PFX(ArmDisableMmu): 4: bic x0, x0, #CTRL_M_BIT // Clear MMU enable bit EL1_OR_EL2_OR_EL3(x1) 1: msr sctlr_el1, x0 // Write back - tlbi alle1 + tlbi vmalle1 b 4f 2: msr sctlr_el2, x0 // Write back tlbi alle2 @@ -441,7 +441,7 @@ ASM_PFX(ArmCallWFI): ASM_PFX(ArmInvalidateInstructionAndDataTlb): EL1_OR_EL2_OR_EL3(x0) -1: tlbi alle1 +1: tlbi vmalle1 b 4f 2: tlbi alle2 b 4f diff --git a/ArmPkg/Library/ArmLib/Common/AArch64/ArmLibSupport.S b/ArmPkg/Library/ArmLib/Common/AArch64/ArmLibSupport.S index d7b2881b98..2db812616a 100644 --- a/ArmPkg/Library/ArmLib/Common/AArch64/ArmLibSupport.S +++ b/ArmPkg/Library/ArmLib/Common/AArch64/ArmLibSupport.S @@ -167,7 +167,7 @@ ASM_PFX(ArmUpdateTranslationTableEntry): ASM_PFX(ArmInvalidateTlb): EL1_OR_EL2_OR_EL3(x0) -1: tlbi alle1 +1: tlbi vmalle1 b 4f 2: tlbi alle2 b 4f -- 2.39.2