Re: [edk2-devel] [PATCH v2 17/17] MdeModulePkg: Enable forward edge CFI in mem attributes table

2023-04-04 Thread Ard Biesheuvel
On Tue, 4 Apr 2023 at 17:00, Oliver Smith-Denny wrote: > > On 4/4/2023 3:41 AM, Ard Biesheuvel wrote: > > On Mon, 3 Apr 2023 at 17:48, Oliver Smith-Denny > > wrote: > >> > >> Turns out my old email was getting sent to a lot of folks spam, so > >> resending with hopefully a better email... > >> >

Re: [edk2-devel] [PATCH v2 17/17] MdeModulePkg: Enable forward edge CFI in mem attributes table

2023-04-04 Thread Ard Biesheuvel
On Mon, 3 Apr 2023 at 17:48, Oliver Smith-Denny wrote: > > Turns out my old email was getting sent to a lot of folks spam, so > resending with hopefully a better email... > > On 3/27/2023 4:01 AM, Ard Biesheuvel wrote: > > The memory attributes table has been extended with a flag that indicates >

Re: [edk2-devel] [PATCH v2 17/17] MdeModulePkg: Enable forward edge CFI in mem attributes table

2023-04-03 Thread Oliver Smith-Denny
Turns out my old email was getting sent to a lot of folks spam, so resending with hopefully a better email... On 3/27/2023 4:01 AM, Ard Biesheuvel wrote: The memory attributes table has been extended with a flag that indicates whether or not the OS is permitted to map the EFI runtime code regio

Re: [edk2-devel] [PATCH v2 17/17] MdeModulePkg: Enable forward edge CFI in mem attributes table

2023-03-28 Thread Oliver Smith-Denny
On 3/27/2023 4:01 AM, Ard Biesheuvel wrote: The memory attributes table has been extended with a flag that indicates whether or not the OS is permitted to map the EFI runtime code regions with strict enforcement for IBT/BTI landing pad instructions. Given that the PE/COFF spec now defines a DllC

[edk2-devel] [PATCH v2 17/17] MdeModulePkg: Enable forward edge CFI in mem attributes table

2023-03-27 Thread Ard Biesheuvel
The memory attributes table has been extended with a flag that indicates whether or not the OS is permitted to map the EFI runtime code regions with strict enforcement for IBT/BTI landing pad instructions. Given that the PE/COFF spec now defines a DllCharacteristicsEx flag that indicates whether o