On Tue, Oct 12, 2021 at 06:29:56PM +1100, Daniel Axtens wrote:
> When working on memory, it's nice to be able to test your work.
>
> Add a memtest module. When compiled with --enable-mm-debug, it exposes
> 3 commands:
>
> * lsmem - print all allocations and free space in all regions
> * lsfreemem
On Tue, Oct 12, 2021 at 06:29:57PM +1100, Daniel Axtens wrote:
> From: Patrick Steinhardt
>
> In `grub_memalign ()`, there's a commented section which would allow for
> unloading of unneeded modules in case where there is not enough free
> memory available to satisfy a request. Given that this cod
On Tue, Oct 12, 2021 at 06:29:58PM +1100, Daniel Axtens wrote:
> From: Patrick Steinhardt
>
> Currently, all platforms will set up their heap on initialization of the
> platform code. While this works mostly fine, it poses some limitations
> on memory management on us. Most notably, allocating big
On Tue, Oct 12, 2021 at 06:29:59PM +1100, Daniel Axtens wrote:
> From: Patrick Steinhardt
>
> When initializing the EFI memory subsytem, we will by default request a
> quarter of the available memory, bounded by a minimum/maximum value.
> Given that we're about to extend the EFI memory system to d
On Tue, Oct 12, 2021 at 06:30:00PM +1100, Daniel Axtens wrote:
> From: Patrick Steinhardt
>
> In preparation of support for runtime-allocating additional memory
> region, this patch extracts the function to retrieve the EFI memory map
> and add a subset of it to GRUB's own memory regions.
>
> Sign
From: James Bottomley
v3: make password getter specify prompt requirement. Update for TDX:
Make name more generic and expand size of secret area
https://github.com/tianocore/edk2/commit/96201ae7bf97c3a2c0ef386110bb93d25e9af1ba
https://github.com/tianocore/edk2/commit/caf8b3872ae2a
Make use of the new OS provided secrets API so that if the new '-s'
option is passed in we try to extract the secret from the API rather
than prompting for it.
The primary consumer of this is AMD SEV, which has been programmed to
provide an injectable secret to the encrypted virtual machine. OVMF
This module is designed to provide an efisecret command which
interrogates the EFI configuration table to find the location of the
confidential computing secret and tries to register the secret with
the cryptodisk.
The secret is stored in a boot allocated area, usually a page in size.
The layout o
On Tue, Oct 19, 2021 at 04:37:03PM -0500, Glenn Washburn wrote:
> On Tue, 12 Oct 2021 18:30:01 +1100
> Daniel Axtens wrote:
>
> > From: Patrick Steinhardt
> >
> > The function `add_memory_regions ()` is currently only called on system
> > initialization to allocate a fixed amount of pages. As suc
For AMD SEV environments, the grub boot password has to be retrieved
from a given memory location rather than prompted for. This means
that the standard password getter needs to be replaced with one that
gets the passphrase from the SEV area and uses that instead. Adding
the password getter as a
On Tue, Oct 12, 2021 at 06:30:01PM +1100, Daniel Axtens wrote:
> From: Patrick Steinhardt
>
> The function `add_memory_regions ()` is currently only called on system
> initialization to allocate a fixed amount of pages. As such, it didn't
> need to return any errors: in case it failed, we cannot p
On Tue, Oct 12, 2021 at 06:30:02PM +1100, Daniel Axtens wrote:
> From: Patrick Steinhardt
>
> Adjust the interface of `grub_efi_mm_add_regions ()` to take a set of
> `GRUB_MM_ADD_REGION_*` flags, which most notably is currently only the
> `CONSECUTVE` flag. This allows us to set the function up as
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