On 18 May 2016 at 15:06, Shanker Donthineni <shankerd@xxxxxxxxxxxxxx> wrote: > Hi Ard, > > We are not using the permission attribute table and all the Runtime > Data/Code regions are marked with 'XP' bit. Do you think something > wrong in our UEFI implementation or Linux has to map RuntimeCode > regions with executable permission always irrespective of an attribute > flag EFI_MEMORY_XP? > > [ 0.000000] efi: Processing EFI memory map: > [ 0.000000] efi: 0x000000100000-0x00000010ffff [Memory Mapped I/O |RUN| | | | | | | | | | |UC] > [ 0.000000] efi: 0x00003b830000-0x00003b83ffff [Memory Mapped I/O |RUN| | | | | | | | | | |UC] > [ 0.000000] efi: 0x00003c000000-0x00003fffffff [Memory Mapped I/O |RUN| | | | | | | | | | |UC] > [ 0.000000] efi: 0x000000100000-0x00000010ffff [Memory Mapped I/O |RUN| | | | | | | | | | |UC] > [ 0.000000] efi: 0x00003b830000-0x00003b83ffff [Memory Mapped I/O |RUN| | | | | | | | | | |UC] > [ 0.000000] efi: 0x00003c000000-0x00003fffffff [Memory Mapped I/O |RUN| | | | | | | | | | |UC] > [ 0.000000] efi: 0x004000820000-0x00400085ffff [Runtime Data |RUN| | |XP| | | | |WB|WT|WC|UC]* > [ 0.000000] efi: 0x004003080000-0x00400308ffff [Runtime Data |RUN| | |XP| | | | |WB|WT|WC|UC]* > [ 0.000000] efi: 0x0047f9960000-0x0047f997ffff [Runtime Data |RUN| | |XP| | | | |WB|WT|WC|UC]* > [ 0.000000] efi: 0x0047fa9c0000-0x0047fa9cffff [Runtime Code |RUN| | |XP| | | | |WB|WT|WC|UC]* > [ 0.000000] efi: 0x0047faa30000-0x0047faa3ffff [Runtime Code |RUN| | |XP| | | | |WB|WT|WC|UC]* > [ 0.000000] efi: 0x0047fab90000-0x0047fab9ffff [Runtime Code |RUN| | |XP| | | | |WB|WT|WC|UC]* > [ 0.000000] efi: 0x0047faba0000-0x0047fabaffff [Runtime Data |RUN| | |XP| | | | |WB|WT|WC|UC]* > [ 0.000000] efi: 0x0047fab90000-0x0047fab9ffff [Runtime Code |RUN| | |XP| | | | |WB|WT|WC|UC]* > [ 0.000000] efi: 0x0047faba0000-0x0047fabaffff [Runtime Data |RUN| | |XP| | | | |WB|WT|WC|UC]* > [ 0.000000] efi: 0x0047fabb0000-0x0047fabbffff [Runtime Code |RUN| | |XP| | | | |WB|WT|WC|UC]* > [ 0.000000] efi: 0x0047fabc0000-0x0047fad9ffff [Runtime Data |RUN| | |XP| | | | |WB|WT|WC|UC]* > [ 0.000000] efi: 0x0047fada0000-0x0047fae2ffff [Runtime Code |RUN| | |XP| | | | |WB|WT|WC|UC]* > [ 0.000000] efi: 0x0047faf50000-0x0047faf7ffff [Runtime Code |RUN| | |XP| | | | |WB|WT|WC|UC]* > [ 0.000000] efi: 0x0047fafa0000-0x0047fafbffff [Runtime Code |RUN| | |XP| | | | |WB|WT|WC|UC]* > [ 0.000000] efi: 0x0047faf50000-0x0047faf7ffff [Runtime Code |RUN| | |XP| | | | |WB|WT|WC|UC]* > [ 0.000000] efi: 0x0047fafa0000-0x0047fafbffff [Runtime Code |RUN| | |XP| | | | |WB|WT|WC|UC]* > [ 0.000000] efi: 0x0047fff90000-0x0047fff9ffff [Runtime Code |RUN| | |XP| | | | |WB|WT|WC|UC]* > [ 0.000000] efi: 0x0047fffb0000-0x0047fffdffff [Runtime Data |RUN| | |XP| | | | |WB|WT|WC|UC]* > This memory map looks utterly broken. Assuming you are using Tianocore, does it work when setting gEfiMdeModulePkgTokenSpaceGuid.PcdPropertiesTableEnable to FALSE in your platform? -- To unsubscribe from this list: send the line "unsubscribe linux-efi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
