Asa-dev July 2020

asa-dev@op-lists.linaro.org

3 participants
3 discussions

Re: [Asa-dev] Pseudo Static ACPI tables for Qemu Sbsa platform

by Graeme Gregory

On 29/07/2020 21:35, Tanmay Jagdale via Asa-dev wrote: > Hi Leif, Graeme, > > I have pushed the following branch that adds support for the > pseudo static approach of modifying the ACPI tables. > http://git.linaro.org/people/tanmay.jagdale/edk2-platforms.git/log/?h=qemu_… > > With this we can boot Linux with any number of CPUs and the > ACPI tables will get configured at runtime based on the CPU > count. > > I have separated them into 4 commits and a patch with all the > changes consolidated into one is in the attached file. > > There are a few issues > 1. We have to pass acpi_apic_instance=2 bootarg to Linux because > 2 APIC tables are getting created we have to use the 2nd instance > which gets created at runtime. > I'm working on a fix for this issue. I think if you just rename the madt.aslc to madt.c this will fix that. The aslc extension means that version of the table automatically gets installed. Thanks Graeme > 2. The SSDT table does not have entries for all CPUs and I'm working > on updating that table too. > > Can you please review this patchset and see if these changes are > okay ? > > With Regards, > Tanmay

4 years, 4 months

Pseudo Static ACPI tables for Qemu Sbsa platform

by Tanmay Jagdale

Hi Leif, Graeme, I have pushed the following branch that adds support for the pseudo static approach of modifying the ACPI tables. http://git.linaro.org/people/tanmay.jagdale/edk2-platforms.git/log/?h=qemu_… With this we can boot Linux with any number of CPUs and the ACPI tables will get configured at runtime based on the CPU count. I have separated them into 4 commits and a patch with all the changes consolidated into one is in the attached file. There are a few issues 1. We have to pass acpi_apic_instance=2 bootarg to Linux because 2 APIC tables are getting created we have to use the 2nd instance which gets created at runtime. I'm working on a fix for this issue. 2. The SSDT table does not have entries for all CPUs and I'm working on updating that table too. Can you please review this patchset and see if these changes are okay ? With Regards, Tanmay

4 years, 4 months

Updated TF-A binaries in edk2-non-osi

by Tanmay Jagdale

Hi Graeme and Masahisa, I updated the TF-A binaries in edk2-non-osi (with Masahisa's fix) and pushed to the following branch: http://git.linaro.org/people/tanmay.jagdale/edk2-non-osi.git/commit/?id=aa1… I have tested this by booting on Qemu SBSA and verified that the device tree error is not showing up. Can you please review the patch if it is okay ? If okay then I'll send it out the edk2-non-osi mailing list. With Regards, Tanmay

4 years, 5 months

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Asa-dev July 2020