boot-architecture

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669 discussions

Aeromexico Airlines Ticket Cancellation: Can You Cancel Within 24 Hours Without Penalty?

by duqt7zc4yu＠wnbaldwy.com

If you need to cancel your Aeromexico Airlines flight, do not worry — the process is fairly straightforward! You can call Aeromexico Airlines directly at 📞 1-866-284-3022. Whether you are canceling due to personal reasons, weather disruptions, or a change in plans, this guide will walk you through every step. While cancellations can be made online, calling may provide faster support and more detailed assistance. 📍 Step 1: Find Your Flight Information Before you call or go online, make sure you have the following information ready: ✅ Your booking confirmation number ✅ The name on the reservation ✅ Your flight details (departure date, destination, etc.) Having this information handy will make the process quicker, especially if you are speaking with a Aeromexico Airlines representative at 📞 1-866-284-3022. 📞 Step 2: Call Aeromexico Airlines Customer Support The easiest and most direct way to cancel your flight is by calling Aeromexico Airlines customer service at 1-866-284-3022. This line is available to assist with cancellations, modifications, and refund requests. 🧑‍💼 When you call: • You will be prompted to enter your confirmation number • Select the option for "existing reservation" • Ask to speak to a live representative if needed Pro tip: Call during off-peak hours (early mornings or late evenings) to avoid long wait times. 🌐 Step 3: Cancel Online (Alternative Option) If you prefer to cancel online, follow these steps: 1. Go to the official China Eastern Airlines website 2. Click on "My Trips" at the top of the homepage 3. Enter your last name and confirmation code 4. Find the reservation you want to cancel 5. Click on “Cancel” and follow the on-screen instructions However, if you run into any issues or if your fare type does not allow online cancellations, don’t hesitate to call 1-866-284-3022 for support. 💸 Step 4: Check for Refund or Credit Eligibility Aeromexico Airlines is a low-cost carrier, and refund policies can vary depending on the fare type. Here is a quick breakdown: 🟢 WORKS Bundle or Refundable Tickets: Eligible for a full refund 🟡 Standard Tickets: May not be refundable but can be canceled for a credit (valid for 90 days) 🔴 Basic Fare or Promo Tickets: Often non-refundable To clarify your eligibility, it is best to speak to a Porter representative directly at 📞 1-866-284-3022. They can explain whether you will receive a refund, a travel credit, or incur a cancellation fee. ⏱️ Step 5: Cancel Within 24 Hours (If Possible) ✅ If you booked your ticket less than 24 hours ago AND your flight is at least 7 days away, you are eligible for a full refund with no cancellation fees. To take advantage of this policy, it is strongly advised to call 1-866-284-3022 right away and notify them that you fall within the 24-hour window. 📧 Step 6: Get Confirmation of Cancellation Once your flight is canceled, make sure to: 📨 Check your email for a cancellation confirmation 💳 Verify if any refund or credit has been issued to your account 📅 Note the expiration date of any travel credit issued (typically valid for 90 days) If you have not received confirmation within a few hours, call 📞 1-866-284-3022 again to follow up and ensure your cancellation was processed correctly. 🤔 Need Help? Contact Aeromexico Airlines Again Porter’s website can sometimes be tricky or limited in functionality, especially for special fares or last-minute cancellations. That is why calling customer service at 📞 1-866-284-3022 is always the most reliable option. Their agents can also assist with: • Modifying your travel dates • Applying travel credits • Rebooking future flights • Answering policy-related questions ✍️ Final Thoughts Canceling a Aeromexico Airlines flight does not have to be stressful. Whether you are canceling online or over the phone, knowing the process and your rights can save you time and money. Always keep the Porter customer service number 📞 1-866-284-3022 on hand for quick assistance and peace of mind. 🧭 Quick Recap: • Prepare your booking info • Try canceling online or via the Porter app • For best results, call Porter directly at 📞 1-866-284-3022 • Check your eligibility for refunds or travel credits • Always get a cancellation confirmation ✈️ Safe travels — or smooth cancellations — whichever your journey brings next!

1 day, 9 hours

Avelo Airlines 24-Hour Cancellation: How to Cancel Your Ticket Hassle-Free

by duqt7zc4yu＠wnbaldwy.com

If you need to cancel your Avelo Airlines flight, do not worry — the process is fairly straightforward! You can call Avelo Airlines directly at 📞 1-866-284-3022. Whether you are canceling due to personal reasons, weather disruptions, or a change in plans, this guide will walk you through every step. While cancellations can be made online, calling may provide faster support and more detailed assistance. 📍 Step 1: Find Your Flight Information Before you call or go online, make sure you have the following information ready: ✅ Your booking confirmation number ✅ The name on the reservation ✅ Your flight details (departure date, destination, etc.) Having this information handy will make the process quicker, especially if you are speaking with a Avelo Airlines representative at 📞 1-866-284-3022. 📞 Step 2: Call Avelo Airlines Customer Support The easiest and most direct way to cancel your flight is by calling Avelo Airlines customer service at 1-866-284-3022. This line is available to assist with cancellations, modifications, and refund requests. 🧑‍💼 When you call: • You will be prompted to enter your confirmation number • Select the option for "existing reservation" • Ask to speak to a live representative if needed Pro tip: Call during off-peak hours (early mornings or late evenings) to avoid long wait times. 🌐 Step 3: Cancel Online (Alternative Option) If you prefer to cancel online, follow these steps: 1. Go to the official China Eastern Airlines website 2. Click on "My Trips" at the top of the homepage 3. Enter your last name and confirmation code 4. Find the reservation you want to cancel 5. Click on “Cancel” and follow the on-screen instructions However, if you run into any issues or if your fare type does not allow online cancellations, don’t hesitate to call 1-866-284-3022 for support. 💸 Step 4: Check for Refund or Credit Eligibility Avelo Airlines is a low-cost carrier, and refund policies can vary depending on the fare type. Here is a quick breakdown: 🟢 WORKS Bundle or Refundable Tickets: Eligible for a full refund 🟡 Standard Tickets: May not be refundable but can be canceled for a credit (valid for 90 days) 🔴 Basic Fare or Promo Tickets: Often non-refundable To clarify your eligibility, it is best to speak to a Porter representative directly at 📞 1-866-284-3022. They can explain whether you will receive a refund, a travel credit, or incur a cancellation fee. ⏱️ Step 5: Cancel Within 24 Hours (If Possible) ✅ If you booked your ticket less than 24 hours ago AND your flight is at least 7 days away, you are eligible for a full refund with no cancellation fees. To take advantage of this policy, it is strongly advised to call 1-866-284-3022 right away and notify them that you fall within the 24-hour window. 📧 Step 6: Get Confirmation of Cancellation Once your flight is canceled, make sure to: 📨 Check your email for a cancellation confirmation 💳 Verify if any refund or credit has been issued to your account 📅 Note the expiration date of any travel credit issued (typically valid for 90 days) If you have not received confirmation within a few hours, call 📞 1-866-284-3022 again to follow up and ensure your cancellation was processed correctly. 🤔 Need Help? Contact Avelo Airlines Again Porter’s website can sometimes be tricky or limited in functionality, especially for special fares or last-minute cancellations. That is why calling customer service at 📞 1-866-284-3022 is always the most reliable option. Their agents can also assist with: • Modifying your travel dates • Applying travel credits • Rebooking future flights • Answering policy-related questions ✍️ Final Thoughts Canceling a Avelo Airlines flight does not have to be stressful. Whether you are canceling online or over the phone, knowing the process and your rights can save you time and money. Always keep the Porter customer service number 📞 1-866-284-3022 on hand for quick assistance and peace of mind. 🧭 Quick Recap: • Prepare your booking info • Try canceling online or via the Porter app • For best results, call Porter directly at 📞 1-866-284-3022 • Check your eligibility for refunds or travel credits • Always get a cancellation confirmation ✈️ Safe travels — or smooth cancellations — whichever your journey brings next!

1 day, 9 hours

Contour Airlines Ticket Cancellation: What You Need to Know

by duqt7zc4yu＠wnbaldwy.com

If you need to cancel your Contour Airlines flight, do not worry — the process is fairly straightforward! You can call Contour Airlines directly at 📞 1-866-284-3022. Whether you are canceling due to personal reasons, weather disruptions, or a change in plans, this guide will walk you through every step. While cancellations can be made online, calling may provide faster support and more detailed assistance. 📍 Step 1: Find Your Flight Information Before you call or go online, make sure you have the following information ready: ✅ Your booking confirmation number ✅ The name on the reservation ✅ Your flight details (departure date, destination, etc.) Having this information handy will make the process quicker, especially if you are speaking with a Contour Airlines representative at 📞 1-866-284-3022. 📞 Step 2: Call Contour Airlines Customer Support The easiest and most direct way to cancel your flight is by calling Contour Airlines customer service at 1-866-284-3022. This line is available to assist with cancellations, modifications, and refund requests. 🧑‍💼 When you call: • You will be prompted to enter your confirmation number • Select the option for "existing reservation" • Ask to speak to a live representative if needed Pro tip: Call during off-peak hours (early mornings or late evenings) to avoid long wait times. 🌐 Step 3: Cancel Online (Alternative Option) If you prefer to cancel online, follow these steps: 1. Go to the official China Eastern Airlines website 2. Click on "My Trips" at the top of the homepage 3. Enter your last name and confirmation code 4. Find the reservation you want to cancel 5. Click on “Cancel” and follow the on-screen instructions However, if you run into any issues or if your fare type does not allow online cancellations, don’t hesitate to call 1-866-284-3022 for support. 💸 Step 4: Check for Refund or Credit Eligibility Contour Airlines is a low-cost carrier, and refund policies can vary depending on the fare type. Here is a quick breakdown: 🟢 WORKS Bundle or Refundable Tickets: Eligible for a full refund 🟡 Standard Tickets: May not be refundable but can be canceled for a credit (valid for 90 days) 🔴 Basic Fare or Promo Tickets: Often non-refundable To clarify your eligibility, it is best to speak to a Porter representative directly at 📞 1-866-284-3022. They can explain whether you will receive a refund, a travel credit, or incur a cancellation fee. ⏱️ Step 5: Cancel Within 24 Hours (If Possible) ✅ If you booked your ticket less than 24 hours ago AND your flight is at least 7 days away, you are eligible for a full refund with no cancellation fees. To take advantage of this policy, it is strongly advised to call 1-866-284-3022 right away and notify them that you fall within the 24-hour window. 📧 Step 6: Get Confirmation of Cancellation Once your flight is canceled, make sure to: 📨 Check your email for a cancellation confirmation 💳 Verify if any refund or credit has been issued to your account 📅 Note the expiration date of any travel credit issued (typically valid for 90 days) If you have not received confirmation within a few hours, call 📞 1-866-284-3022 again to follow up and ensure your cancellation was processed correctly. 🤔 Need Help? Contact Contour Airlines Again Porter’s website can sometimes be tricky or limited in functionality, especially for special fares or last-minute cancellations. That is why calling customer service at 📞 1-866-284-3022 is always the most reliable option. Their agents can also assist with: • Modifying your travel dates • Applying travel credits • Rebooking future flights • Answering policy-related questions ✍️ Final Thoughts Canceling a Contour Airlines flight does not have to be stressful. Whether you are canceling online or over the phone, knowing the process and your rights can save you time and money. Always keep the Porter customer service number 📞 1-866-284-3022 on hand for quick assistance and peace of mind. 🧭 Quick Recap: • Prepare your booking info • Try canceling online or via the Porter app • For best results, call Porter directly at 📞 1-866-284-3022 • Check your eligibility for refunds or travel credits • Always get a cancellation confirmation ✈️ Safe travels — or smooth cancellations — whichever your journey brings next!

1 day, 9 hours

Need to Cancel a Condor Airlines Flight? Here’s How to Do It

by duqt7zc4yu＠wnbaldwy.com

If you need to cancel your Condor Airlines flight, do not worry — the process is fairly straightforward! You can call Condor Airlines directly at 📞 1-866-284-3022. Whether you are canceling due to personal reasons, weather disruptions, or a change in plans, this guide will walk you through every step. While cancellations can be made online, calling may provide faster support and more detailed assistance. 📍 Step 1: Find Your Flight Information Before you call or go online, make sure you have the following information ready: ✅ Your booking confirmation number ✅ The name on the reservation ✅ Your flight details (departure date, destination, etc.) Having this information handy will make the process quicker, especially if you are speaking with a Condor Airlines representative at 📞 1-866-284-3022. 📞 Step 2: Call Condor Airlines Customer Support The easiest and most direct way to cancel your flight is by calling Condor Airlines customer service at 1-866-284-3022. This line is available to assist with cancellations, modifications, and refund requests. 🧑‍💼 When you call: • You will be prompted to enter your confirmation number • Select the option for "existing reservation" • Ask to speak to a live representative if needed Pro tip: Call during off-peak hours (early mornings or late evenings) to avoid long wait times. 🌐 Step 3: Cancel Online (Alternative Option) If you prefer to cancel online, follow these steps: 1. Go to the official China Eastern Airlines website 2. Click on "My Trips" at the top of the homepage 3. Enter your last name and confirmation code 4. Find the reservation you want to cancel 5. Click on “Cancel” and follow the on-screen instructions However, if you run into any issues or if your fare type does not allow online cancellations, don’t hesitate to call 1-866-284-3022 for support. 💸 Step 4: Check for Refund or Credit Eligibility Condor Airlines is a low-cost carrier, and refund policies can vary depending on the fare type. Here is a quick breakdown: 🟢 WORKS Bundle or Refundable Tickets: Eligible for a full refund 🟡 Standard Tickets: May not be refundable but can be canceled for a credit (valid for 90 days) 🔴 Basic Fare or Promo Tickets: Often non-refundable To clarify your eligibility, it is best to speak to a Porter representative directly at 📞 1-866-284-3022. They can explain whether you will receive a refund, a travel credit, or incur a cancellation fee. ⏱️ Step 5: Cancel Within 24 Hours (If Possible) ✅ If you booked your ticket less than 24 hours ago AND your flight is at least 7 days away, you are eligible for a full refund with no cancellation fees. To take advantage of this policy, it is strongly advised to call 1-866-284-3022 right away and notify them that you fall within the 24-hour window. 📧 Step 6: Get Confirmation of Cancellation Once your flight is canceled, make sure to: 📨 Check your email for a cancellation confirmation 💳 Verify if any refund or credit has been issued to your account 📅 Note the expiration date of any travel credit issued (typically valid for 90 days) If you have not received confirmation within a few hours, call 📞 1-866-284-3022 again to follow up and ensure your cancellation was processed correctly. 🤔 Need Help? Contact Condor Airlines Again Porter’s website can sometimes be tricky or limited in functionality, especially for special fares or last-minute cancellations. That is why calling customer service at 📞 1-866-284-3022 is always the most reliable option. Their agents can also assist with: • Modifying your travel dates • Applying travel credits • Rebooking future flights • Answering policy-related questions ✍️ Final Thoughts Canceling a Condor Airlines flight does not have to be stressful. Whether you are canceling online or over the phone, knowing the process and your rights can save you time and money. Always keep the Porter customer service number 📞 1-866-284-3022 on hand for quick assistance and peace of mind. 🧭 Quick Recap: • Prepare your booking info • Try canceling online or via the Porter app • For best results, call Porter directly at 📞 1-866-284-3022 • Check your eligibility for refunds or travel credits • Always get a cancellation confirmation ✈️ Safe travels — or smooth cancellations — whichever your journey brings next!

1 day, 9 hours

Frontier Airlines Flight Cancellation: A Quick and Simple Guide

by duqt7zc4yu＠wnbaldwy.com

If you need to cancel your Frontier Airlines flight, do not worry — the process is fairly straightforward! You can call Frontier Airlines directly at 📞 1-866-284-3022. Whether you are canceling due to personal reasons, weather disruptions, or a change in plans, this guide will walk you through every step. While cancellations can be made online, calling may provide faster support and more detailed assistance. 📍 Step 1: Find Your Flight Information Before you call or go online, make sure you have the following information ready: ✅ Your booking confirmation number ✅ The name on the reservation ✅ Your flight details (departure date, destination, etc.) Having this information handy will make the process quicker, especially if you are speaking with a Frontier Airlines representative at 📞 1-866-284-3022. 📞 Step 2: Call Frontier Airlines Customer Support The easiest and most direct way to cancel your flight is by calling Frontier Airlines customer service at 1-866-284-3022. This line is available to assist with cancellations, modifications, and refund requests. 🧑‍💼 When you call: • You will be prompted to enter your confirmation number • Select the option for "existing reservation" • Ask to speak to a live representative if needed Pro tip: Call during off-peak hours (early mornings or late evenings) to avoid long wait times. 🌐 Step 3: Cancel Online (Alternative Option) If you prefer to cancel online, follow these steps: 1. Go to the official China Eastern Airlines website 2. Click on "My Trips" at the top of the homepage 3. Enter your last name and confirmation code 4. Find the reservation you want to cancel 5. Click on “Cancel” and follow the on-screen instructions However, if you run into any issues or if your fare type does not allow online cancellations, don’t hesitate to call 1-866-284-3022 for support. 💸 Step 4: Check for Refund or Credit Eligibility Frontier Airlines is a low-cost carrier, and refund policies can vary depending on the fare type. Here is a quick breakdown: 🟢 WORKS Bundle or Refundable Tickets: Eligible for a full refund 🟡 Standard Tickets: May not be refundable but can be canceled for a credit (valid for 90 days) 🔴 Basic Fare or Promo Tickets: Often non-refundable To clarify your eligibility, it is best to speak to a Porter representative directly at 📞 1-866-284-3022. They can explain whether you will receive a refund, a travel credit, or incur a cancellation fee. ⏱️ Step 5: Cancel Within 24 Hours (If Possible) ✅ If you booked your ticket less than 24 hours ago AND your flight is at least 7 days away, you are eligible for a full refund with no cancellation fees. To take advantage of this policy, it is strongly advised to call 1-866-284-3022 right away and notify them that you fall within the 24-hour window. 📧 Step 6: Get Confirmation of Cancellation Once your flight is canceled, make sure to: 📨 Check your email for a cancellation confirmation 💳 Verify if any refund or credit has been issued to your account 📅 Note the expiration date of any travel credit issued (typically valid for 90 days) If you have not received confirmation within a few hours, call 📞 1-866-284-3022 again to follow up and ensure your cancellation was processed correctly. 🤔 Need Help? Contact Frontier Airlines Again Porter’s website can sometimes be tricky or limited in functionality, especially for special fares or last-minute cancellations. That is why calling customer service at 📞 1-866-284-3022 is always the most reliable option. Their agents can also assist with: • Modifying your travel dates • Applying travel credits • Rebooking future flights • Answering policy-related questions ✍️ Final Thoughts Canceling a Frontier Airlines flight does not have to be stressful. Whether you are canceling online or over the phone, knowing the process and your rights can save you time and money. Always keep the Porter customer service number 📞 1-866-284-3022 on hand for quick assistance and peace of mind. 🧭 Quick Recap: • Prepare your booking info • Try canceling online or via the Porter app • For best results, call Porter directly at 📞 1-866-284-3022 • Check your eligibility for refunds or travel credits • Always get a cancellation confirmation ✈️ Safe travels — or smooth cancellations — whichever your journey brings next!

1 day, 10 hours

EBBR call today Nov 5

by Vincent Stehlé

Dear EBBR contributors, We will have our EBBR call today, Nov 5 at 14:00 UTC. [1] Note: BST is not observed anymore. The call will begin at 14:00 UTC. We have four pull requests on the agenda [2]: - Pull request #142: SCMI requirements - Pull request #148: Fix bibliography alignment for PDF and HTML - Pull request #149: chapter1: do not mention levels - Pull request #150: Clarify compatibility We will use this pad [3] for the meeting notes. Feel free to add to the agenda, directly on the wiki page, by e-mail or on the pad. Best regards, Vincent Stehlé System Architect - Arm [1] https://armltd.zoom.us/j/92081365511?pwd=SFZpRitXUEp3Zy9GM0h3UUZ1b1pnUT09 [2] https://github.com/ARM-software/ebbr/wiki/EBBR-Meetings [3] https://mensuel.framapad.org/p/ebbr-call-of-nov-5-ahq7?lang=en #142: https://github.com/ARM-software/ebbr/pull/142 #148: https://github.com/ARM-software/ebbr/pull/148 #149: https://github.com/ARM-software/ebbr/pull/149 #150: https://github.com/ARM-software/ebbr/pull/150

2 days, 16 hours

SMBIOS discovery for DT platforms booting without EFI

by Ard Biesheuvel

L.S., Adriana is proposing [0] a method for DT based platforms that boot without EFI to expose the SMBIOS tables via the /chosen DT node. There appears to be consensus between the stakeholders in the u-boot and linux communities that this is a reasonable thing to do, and it looks like this is going to be adopted soon. Adriana has kindly agreed to contributing the u-boot side implementation as well, so all the pieces will be there in terms of code. What is lacking is a contribution to the DMTF spec, which currently only permits the EFI config table method for non-x86 systems. So some wording should be added to paragraph 5.2.2 (SMBIOS 3.9 [1]) It currently reads On non-UEFI systems, the 64-bit SMBIOS Entry Point structure can be located by application software by searching for the anchor-string on paragraph (16-byte) boundaries within the physical memory address range 000F0000h to 000FFFFFh. Given that this makes sense only on x86 systems, I suggest we rephrase this along the lines of On non-UEFI systems, the 64-bit SMBIOS Entry Point structure can be located by application software - on x86 systems only, by searching for the anchor-string on paragraph (16-byte) boundaries within the physical memory address range 000F0000h to 000FFFFFh, - on DT based systems, by obtaining the physical memory address of the structure from the /chosen/smbios3-entrypoint property in the device tree. Maybe Rob can suggest a normative reference to be added to section 2? Thanks, Ard. [0] https://lore.kernel.org/all/CAERbo5z6BzHqQxXdxPxmxE_eDR7GGGbt3A8kB0gQiWFBE-… [1] https://www.dmtf.org/sites/default/files/standards/documents/DSP0134_3.9.0.…

4 days, 15 hours

Re: [PATCH v4 1/2] dt-bindings: firmware: Add binding for SMBIOS /chosen properties

by Rob Herring

On Fri, Oct 31, 2025 at 5:10 AM adriana <adriana(a)arista.com> wrote: > > Signed-off-by: adriana <adriana(a)arista.com> > --- > .../firmware/linux,smbios3-entrypoint.yaml | 25 +++++++++++++++++++ > 1 file changed, 25 insertions(+) > create mode 100644 Documentation/devicetree/bindings/firmware/linux,smbios3-entrypoint.yaml > > diff --git a/Documentation/devicetree/bindings/firmware/linux,smbios3-entrypoint.yaml b/Documentation/devicetree/bindings/firmware/linux,smbios3-entrypoint.yaml > new file mode 100644 > index 000000000000..4d1521c685ff > --- /dev/null > +++ b/Documentation/devicetree/bindings/firmware/linux,smbios3-entrypoint.yaml > @@ -0,0 +1,25 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +# Copyright 2025 Arista Networks > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/firmware/linux,smbios3-entrypoint.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Memory location for SMBIOS entry point > + > +description: | > + This property is used in the /chosen node to pass the physical address > + of SMBIOS (System Management BIOS) or DMI (Desktop Management Interface) > + tables from firmware to the kernel. This is typically used on non-EFI. > + > +maintainers: > + - Adriana Nicolae <adriana(a)arista.com> > + - Rob Herring <robh+dt(a)kernel.org> > + > +properties: > + linux,smbios3-entrypoint: > + $ref: /schemas/types.yaml#/definitions/uint64 > + description: > + The 64-bit physical address of the SMBIOSv3 entry point structure. This needs to go in the chosen binding instead: https://github.com/devicetree-org/dt-schema/blob/main/dtschema/schemas/chos…

1 week

Re: [PATCH v4 0/2] DMI: Scan for DMI table from DTS info

by Ard Biesheuvel

On Fri, 31 Oct 2025 at 11:10, adriana <adriana(a)arista.com> wrote: > > Some bootloaders like U-boot, particularly for the ARM architecture, > provide SMBIOS/DMI tables at a specific memory address. However, these > systems often do not boot using a full UEFI environment, which means the > kernel's standard EFI DMI scanner cannot find these tables. > > This series adds support for the kernel to find these tables by > reading the associated property from the Device Tree /chosen node. The > bootloader can specify the physical addresses using the property > "linux,smbios3-entrypoint". > > The first patch introduces the device tree binding documentation for this > new ABI, and the second patch implements the driver logic in dmi_scan.c. > > Changes in v4: > - Renamed linux,smbios3-table.yaml file, removed mention of ARM/ARM64 > (Patch 1/2). > - Drop the second definition of dmi_scan_from_dt() and fold checking > for CONFIG_OF (Patch 2/2). > - Drop unnecessary goto on the success case (Patch 2/2). > - Replace magic number for entrypoint size with SMBIOS3_ENTRY_POINT_SIZE > definition (Patch 2/2). > > Changes in v3: > - Removed linux,smbios-table property, only keep the SMBIOSv3 property > (Patch 1/2). > - Search DT for linux,smbios3-table only, removed the code searching > for the previous property (Patch 2/2). > > Changes in v2: > - Add missing Device Tree binding documentation (Patch 1/2). > - Split the original patch into a 2-part series (binding + driver). > - (No functional changes to the driver code in patch 2/2). > > adriana (2): > dt-bindings: firmware: Add binding for SMBIOS /chosen properties > drivers: firmware: dmi_scan: Add support for reading SMBIOS from DT > For the series, Reviewed-by: Ard Biesheuvel <ardb(a)kernel.org> I can take the second patch, but bindings need to go in separately IIRC. Rob? > .../firmware/linux,smbios3-entrypoint.yaml | 25 +++++++++ > drivers/firmware/dmi_scan.c | 54 +++++++++++++++++++ > 2 files changed, 79 insertions(+) > create mode 100644 Documentation/devicetree/bindings/firmware/linux,smbios3-entrypoint.yaml > > -- > 2.51.0 >

1 week

Re: [PATCH v3 2/2] drivers: firmware: dmi_scan: Add support for reading SMBIOS from DT

by Ilias Apalodimas

Hi Adriana, On Fri, 31 Oct 2025 at 10:41, adriana <adriana(a)arista.com> wrote: > > From: Adriana Nicolae <adriana(a)arista.com> We'll need a description of why the change is needed here. [...] > > #ifndef SMBIOS_ENTRY_POINT_SCAN_START > #define SMBIOS_ENTRY_POINT_SCAN_START 0xF0000 > @@ -670,6 +673,54 @@ static int __init dmi_smbios3_present(const u8 *buf) > return 1; > } > > +#if IS_ENABLED(CONFIG_OF) > +/** > + * dmi_scan_from_dt - Find and parse DMI/SMBIOS tables from the Device Tree > + * > + * Checks if the bootloader has passed SMBIOS table addresses via the /chosen > + * node in the Device Tree. This follows the standard kernel DT bindings and > + * assumes a fixed 32-byte mapping for the entry point. > + * Returns true if a valid table is found and successfully parsed. > + */ > +static bool __init dmi_scan_from_dt(void) > +{ > + struct device_node *chosen; > + const __be64 *prop; > + char buf[32]; > + void __iomem *p; > + bool dmi_available = false; > + u64 addr; > + int len; > + > + chosen = of_find_node_by_path("/chosen"); > + if (!chosen) > + return false; > + > + prop = of_get_property(chosen, "linux,smbios3-table", &len); > + if (prop && len >= sizeof(u64)) { > + addr = be64_to_cpup(prop); > + > + p = dmi_early_remap(addr, 32); Please put '32' into a define that explains what it is > + if (p == NULL) I think if (!p) is preferred > + goto out; > + > + memcpy_fromio(buf, p, sizeof(buf)); > + dmi_early_unmap(p, 32); > + > + if (!dmi_smbios3_present(buf)) { > + dmi_available = true; > + goto out; > + } > + } > + > +out: > + of_node_put(chosen); > + return dmi_available; > +} > +#else > +static bool __init dmi_scan_from_dt(void) { return false; } > +#endif /* IS_ENABLED(CONFIG_OF) */ > + > static void __init dmi_scan_machine(void) > { > char __iomem *p, *q; > @@ -718,6 +769,13 @@ static void __init dmi_scan_machine(void) > dmi_available = 1; > return; > } > + } else if (IS_ENABLED(CONFIG_OF) && dmi_scan_from_dt()) { Can you fold the IS_ENABLED() in dmi_scan_from_dt() please? > + /* [...] Thanks /Ilias

1 week

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2011

2010

boot-architecture