From: "Ard Biesheuvel" <ardb@kernel.org>
To: devel@edk2.groups.io, dionnaglaze@google.com
Cc: "Ni, Ray" <ray.ni@intel.com>, "Xu, Min M" <min.m.xu@intel.com>,
Gerd Hoffmann <kraxel@redhat.com>,
James Bottomley <jejb@linux.ibm.com>,
Tom Lendacky <Thomas.Lendacky@amd.com>,
"Yao, Jiewen" <jiewen.yao@intel.com>,
"Aktas, Erdem" <erdemaktas@google.com>,
Andrew Fish <afish@apple.com>,
"Kinney, Michael D" <michael.d.kinney@intel.com>
Subject: Re: [edk2-devel] [PATCH v7 0/7] Add safe unaccepted memory behavior
Date: Wed, 19 Oct 2022 10:57:02 +0200 [thread overview]
Message-ID: <CAMj1kXH1aibhTUb1E1aYhnyZ-K5YmM032f613SDAbdO8a4YRFg@mail.gmail.com> (raw)
In-Reply-To: <CAAH4kHYhCgqT+WW_echr=kuD9ZMXU9cWfeW1DiFHfAtvM5CpnQ@mail.gmail.com>
On Fri, 14 Oct 2022 at 23:30, Dionna Glaze via groups.io
<dionnaglaze=google.com@groups.io> wrote:
>
> >
> > Can OsIndicationsSupported UEFI variable provide the similar functionality?
> >
>
> Similar, but not the same. If we use a UEFI variable, its value will
> persist across boots.
That assumes the variable is non-volatile, but I suppose we could use
a volatile variable [other than OsIndications] as well.
> This can be fine if you only boot one OS, but if
> you have two where one supports unaccepted memory and the other
> doesn't then you have a problem.
> The protocol here is specific to the code that will be calling
> ExitBootServices, and thus won't mess up another OS once we reboot and
> select it.
>
> --
> -Dionna Glaze, PhD (she/her)
>
>
>
>
>
next prev parent reply other threads:[~2022-10-19 8:57 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-05 20:33 [PATCH v7 0/7] Add safe unaccepted memory behavior Dionna Glaze
2022-10-05 20:33 ` [PATCH v7 1/7] OvmfPkg: Realize EfiMemoryAcceptProtocol in AmdSevDxe Dionna Glaze
2022-10-05 20:43 ` Lendacky, Thomas
2022-10-05 20:33 ` [PATCH v7 2/7] MdePkg: Add EFI_EVENT_BEFORE_EXIT_BOOT_SERVICES_GUID Dionna Glaze
2022-10-06 12:45 ` Ard Biesheuvel
2022-10-10 1:33 ` 回复: [edk2-devel] " gaoliming
2022-10-05 20:33 ` [PATCH v7 3/7] MdeModulePkg: Notify BeforeExitBootServices in CoreExitBootServices Dionna Glaze
2022-10-05 20:50 ` Lendacky, Thomas
2022-10-05 20:58 ` Dionna Glaze
2022-10-10 1:32 ` 回复: [edk2-devel] " gaoliming
[not found] ` <171B47E3227F0BCA.23411@groups.io>
2022-10-05 21:01 ` Dionna Glaze
2022-10-06 12:46 ` Ard Biesheuvel
2022-10-05 20:33 ` [PATCH v7 4/7] OvmfPkg: Introduce CocoDxe driver Dionna Glaze
2022-10-05 20:33 ` [PATCH v7 5/7] MdePkg: Introduce the AcceptAllUnacceptedMemory protocol Dionna Glaze
2022-10-05 20:33 ` [PATCH v7 6/7] OvmfPkg: Implement AcceptAllUnacceptedMemory in CocoDxe Dionna Glaze
2022-10-05 20:33 ` [PATCH v7 7/7] OvmfPkg/PlatformPei: SEV-SNP make >=4GB unaccepted Dionna Glaze
2022-10-05 21:02 ` Lendacky, Thomas
2022-10-14 6:20 ` [edk2-devel] [PATCH v7 0/7] Add safe unaccepted memory behavior Ni, Ray
2022-10-14 21:29 ` Dionna Glaze
2022-10-19 8:57 ` Ard Biesheuvel [this message]
2022-10-20 22:37 ` Dionna Glaze
2022-10-21 13:17 ` Ard Biesheuvel
2022-10-21 15:42 ` Dionna Glaze
2022-10-24 8:34 ` aik
2022-10-24 15:24 ` Dionna Glaze
2022-10-26 0:23 ` aik
2022-10-26 1:07 ` Dionna Glaze
2022-10-26 1:35 ` Alexey Kardashevskiy
2022-10-26 2:49 ` Alexey Kardashevskiy
2022-10-27 3:18 ` Alexey Kardashevskiy
2022-10-27 15:38 ` Dionna Glaze
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