[edk2-devel] Question about OS to UEFI DXE module communication

2024-11-04 Thread Rafael Machado
controls and logic at the dxe driver to make sure the data I am receiving is reliable, it is not a replay attack and other security related scenarios. Any idea about other approaches I can follow to have this "communication channel" between OS and the BIOS (data processed at the next boot) Tha

Re: [edk2-devel] enable MemoryProfile for uefi shell app

2023-06-15 Thread Rafael Machado
Hi MT Just to understand better. Do you have access to the BIOS code so you can compile the BIOS with support to MemoryProfile? As far as I can see it seems you have added the needed libraries to your .dsc file, but to make memoryprofile working you need to have a BIOS capable of doing that.

Re: [edk2-devel] How to restrict HTTPS boot to a single address

2022-08-29 Thread Rafael Machado
to filter the URI. > > > > Please give a try. > > > > -Siva > > *From:* devel@edk2.groups.io * On Behalf Of *Rafael > Machado via groups.io > *Sent:* Friday, August 26, 2022 7:46 PM > *To:* devel@edk2.groups.io > *Subject:* [EXTERNAL] [edk2-devel] How to rest

[edk2-devel] How to restrict HTTPS boot to a single address

2022-08-26 Thread Rafael Machado
Hello everyone. Quick question for the ones that understand better the HTTPBoot architecture at the edk2 structure. Suppose I have to restrict HTTPS boot to accept only the download of images from a specific url. For example, instead of allowing the download of images from any valid CA certificat

Re: [edk2-devel] Question about signed uefi vars at OS level

2022-07-29 Thread Rafael Machado
? Thanks Rafael On Tue, Jul 26, 2022, 10:17 AM James Bottomley < james.bottom...@hansenpartnership.com> wrote: > On Tue, 2022-07-26 at 10:09 -0300, Rafael Machado wrote: > > Hey everyone > > > > I have a question for the experts. > > > > Suppose I have a BIOS

[edk2-devel] Question about signed uefi vars at OS level

2022-07-26 Thread Rafael Machado
Hey everyone I have a question for the experts. Suppose I have a BIOS feature that can be set from the OS via some OS application (.exe) that calls the runtime services set variable (). To set this feature I have a UEFI var, that during DXE is processed by some uefi module. In case I define thi

[edk2-devel] System S3 via UEFI shell

2022-05-16 Thread Rafael Machado
Hi everyone I have a question. Is there a way to put a system to sleep (S3) via UEFI shell? Checking the UEFIshell spec, there is the reset command, that can be triggered with parameter -w, that would cause a warm boot. But I am not sure if warm boot and a S3 resume are the same. Any comments?

Re: [edk2-devel] VirtIO sound device in qemu?

2021-06-08 Thread Rafael Machado
That remembers me why did I do my mastering thesys using a real hardware :) Rafael Em ter, 8 de jun de 2021 17:25, Leif Lindholm escreveu: > Hi Ethin, > > Adapting and overcoming is very much the point of GSoC. > The purpose of this project was always to bring portable audio support > to EDK2,

Re: [edk2-devel] VirtIO Sound Driver (GSoC 2021)

2021-03-30 Thread Rafael Machado
This would be amazing so people can continue my work related to accessibility at BIOS. Something desired by the blind people since the 90's Just for reference, this is what I have done: https://github.com/RafaelRMachado/Msc_UefiHda_PreOs_Accessibility Thanks Rafael Em seg, 29 de mar de 2021 20:2

Re: [edk2-devel] Memory Operation Mode

2019-08-22 Thread Rafael Machado
uld someone please clarify if it would be safe to consider 2 DIMM at the same bank and at the same channel as a confirmation that the platform is operating in dual channel, without considering chipset registers? Thanks and Regards Rafael Em qua, 21 de ago de 2019 às 16:56, Andrew Fish escrev

[edk2-devel] Memory Operation Mode

2019-08-21 Thread Rafael Machado
Hi everyone I would like to ask for some help regarding one question. How do I know how the memory communication was set by the BIOS/MRC/FSP during the initialization process? For example, I would like to know if the memory controller is working with the memories in single channel or dual channel