Re: [PATCH V8 3/5] arm64: mm: add PROT_DEVICE_nGnRnE and PROT_NORMAL_WT
On 7/27/2015 2:19 AM, Catalin Marinas wrote: On Sat, Jul 25, 2015 at 12:51:07AM +0100, Jonathan (Zhixiong) Zhang wrote: From: "Jonathan (Zhixiong) Zhang" UEFI spec 2.5 section 2.3.6.1 defines that EFI_MEMORY_[UC|WC|WT|WB] are possible EFI memory types for AArch64. Each of those EFI memory types is mapped to a corresponding AArch64 memory type. So we need to define PROT_DEVICE_nGnRnE and PROT_NORMWL_WT additionaly. MT_NORMAL_WT is defined, and its encoding is added to MAIR_EL1 when initializing cpu. Change-Id: I20ac71ddf74c17e41769ecbb5f8c60eeefbb398a Signed-off-by: Jonathan (Zhixiong) Zhang Please drop this Change-Id, it doesn't have any relevance to us. Yes, will do. Otherwise: Reviewed-by: Catalin Marinas Thanks, appreciate it. -- Jonathan (Zhixiong) Zhang The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [PATCH V8 3/5] arm64: mm: add PROT_DEVICE_nGnRnE and PROT_NORMAL_WT
On 7/27/2015 2:19 AM, Catalin Marinas wrote: On Sat, Jul 25, 2015 at 12:51:07AM +0100, Jonathan (Zhixiong) Zhang wrote: From: Jonathan (Zhixiong) Zhang zjzh...@codeaurora.org UEFI spec 2.5 section 2.3.6.1 defines that EFI_MEMORY_[UC|WC|WT|WB] are possible EFI memory types for AArch64. Each of those EFI memory types is mapped to a corresponding AArch64 memory type. So we need to define PROT_DEVICE_nGnRnE and PROT_NORMWL_WT additionaly. MT_NORMAL_WT is defined, and its encoding is added to MAIR_EL1 when initializing cpu. Change-Id: I20ac71ddf74c17e41769ecbb5f8c60eeefbb398a Signed-off-by: Jonathan (Zhixiong) Zhang zjzh...@codeaurora.org Please drop this Change-Id, it doesn't have any relevance to us. Yes, will do. Otherwise: Reviewed-by: Catalin Marinas catalin.mari...@arm.com Thanks, appreciate it. -- Jonathan (Zhixiong) Zhang The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [PATCH V8 3/5] arm64: mm: add PROT_DEVICE_nGnRnE and PROT_NORMAL_WT
On Sat, Jul 25, 2015 at 12:51:07AM +0100, Jonathan (Zhixiong) Zhang wrote: > From: "Jonathan (Zhixiong) Zhang" > > UEFI spec 2.5 section 2.3.6.1 defines that EFI_MEMORY_[UC|WC|WT|WB] are > possible EFI memory types for AArch64. Each of those EFI memory types > is mapped to a corresponding AArch64 memory type. So we need to define > PROT_DEVICE_nGnRnE and PROT_NORMWL_WT additionaly. > > MT_NORMAL_WT is defined, and its encoding is added to MAIR_EL1 when > initializing cpu. > > Change-Id: I20ac71ddf74c17e41769ecbb5f8c60eeefbb398a > Signed-off-by: Jonathan (Zhixiong) Zhang Please drop this Change-Id, it doesn't have any relevance to us. Otherwise: Reviewed-by: Catalin Marinas -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [PATCH V8 3/5] arm64: mm: add PROT_DEVICE_nGnRnE and PROT_NORMAL_WT
On Sat, Jul 25, 2015 at 12:51:07AM +0100, Jonathan (Zhixiong) Zhang wrote: From: Jonathan (Zhixiong) Zhang zjzh...@codeaurora.org UEFI spec 2.5 section 2.3.6.1 defines that EFI_MEMORY_[UC|WC|WT|WB] are possible EFI memory types for AArch64. Each of those EFI memory types is mapped to a corresponding AArch64 memory type. So we need to define PROT_DEVICE_nGnRnE and PROT_NORMWL_WT additionaly. MT_NORMAL_WT is defined, and its encoding is added to MAIR_EL1 when initializing cpu. Change-Id: I20ac71ddf74c17e41769ecbb5f8c60eeefbb398a Signed-off-by: Jonathan (Zhixiong) Zhang zjzh...@codeaurora.org Please drop this Change-Id, it doesn't have any relevance to us. Otherwise: Reviewed-by: Catalin Marinas catalin.mari...@arm.com -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
