From: Dan Williams <dan.j.williams@intel.com>
To: Tom Lendacky <thomas.lendacky@amd.com>,
<linux-kernel@vger.kernel.org>, <x86@kernel.org>,
<linux-coco@lists.linux.dev>, <svsm-devel@coconut-svsm.dev>
Cc: Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
Dave Hansen <dave.hansen@linux.intel.com>,
"H. Peter Anvin" <hpa@zytor.com>,
Andy Lutomirski <luto@kernel.org>,
"Peter Zijlstra" <peterz@infradead.org>,
Dan Williams <dan.j.williams@intel.com>,
Michael Roth <michael.roth@amd.com>,
Ashish Kalra <ashish.kalra@amd.com>
Subject: Re: [PATCH v4 13/15] x86/sev: Take advantage of configfs visibility support in TSM
Date: Fri, 26 Apr 2024 14:58:46 -0700 [thread overview]
Message-ID: <662c239680842_b6e02944b@dwillia2-mobl3.amr.corp.intel.com.notmuch> (raw)
In-Reply-To: <e3143c1f3d0b26fcd8884c6f75644b634a7138e8.1713974291.git.thomas.lendacky@amd.com>
Tom Lendacky wrote:
> The TSM attestation report support provides multiple configfs attribute
> types (both for standard and binary attributes) to allow for additional
> attributes to be displayed for SNP as compared to TDX. With the ability
> to hide attributes via configfs, consoldate the multiple attribute groups
> into a single standard attribute group and a single binary attribute
> group. Modify the TDX support to hide the attributes that were previously
> "hidden" as a result of registering the selective attribute groups.
>
> Co-developed-by: Dan Williams <dan.j.williams@intel.com>
> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
> Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
> ---
> drivers/virt/coco/sev-guest/sev-guest.c | 3 +-
> drivers/virt/coco/tdx-guest/tdx-guest.c | 29 ++++++++-
> drivers/virt/coco/tsm.c | 82 ++++++++++++-------------
> include/linux/tsm.h | 41 ++++++++++---
> 4 files changed, 102 insertions(+), 53 deletions(-)
[..]
> diff --git a/drivers/virt/coco/tdx-guest/tdx-guest.c b/drivers/virt/coco/tdx-guest/tdx-guest.c
> index 1253bf76b570..964af57f345c 100644
> --- a/drivers/virt/coco/tdx-guest/tdx-guest.c
> +++ b/drivers/virt/coco/tdx-guest/tdx-guest.c
[..]
> @@ -249,6 +250,30 @@ static int tdx_report_new(struct tsm_report *report, void *data)
> return ret;
> }
>
> +static bool tdx_report_attr_visible(struct config_item *item,
> + struct configfs_attribute *attr, int n)
> +{
> + switch (n) {
> + case TSM_REPORT_GENERATION:
> + case TSM_REPORT_PROVIDER:
> + return true;
> + }
> +
> + return false;
> +}
> +
> +static bool tdx_report_bin_attr_visible(struct config_item *item,
> + struct configfs_bin_attribute *attr, int n)
> +{
> + switch (n) {
> + case TSM_REPORT_INBLOB:
> + case TSM_REPORT_OUTBLOB:
> + return true;
> + }
> +
> + return false;
> +}
Why do these callbacks need @item and @attr?
[..]
> +static bool tsm_report_is_visible(struct config_item *item,
> + struct configfs_attribute *attr, int n)
Per the comment on where to find the is_visible() callbacks for a given
item type, I expect the need to pass @item here goes away when this can
assume that there is only one way to have is_visible() invoked for
@attr, right?
Other than that, this conversion looks good to me.
next prev parent reply other threads:[~2024-04-26 21:58 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-24 15:57 [PATCH v4 00/15] Provide SEV-SNP support for running under an SVSM Tom Lendacky
2024-04-24 15:57 ` [PATCH v4 01/15] x86/sev: Shorten snp_secrets_page_layout to snp_secrets_page Tom Lendacky
2024-04-25 13:30 ` Borislav Petkov
2024-04-24 15:57 ` [PATCH v4 02/15] x86/sev: Rename snp_init() in the boot/compressed/sev.c file Tom Lendacky
2024-04-24 15:57 ` [PATCH v4 03/15] x86/sev: Make the VMPL0 checking more straight forward Tom Lendacky
2024-04-24 15:58 ` [PATCH v4 04/15] x86/sev: Check for the presence of an SVSM in the SNP Secrets page Tom Lendacky
2024-05-02 9:35 ` Borislav Petkov
2024-05-02 15:29 ` Tom Lendacky
2024-04-24 15:58 ` [PATCH v4 05/15] x86/sev: Use kernel provided SVSM Calling Areas Tom Lendacky
2024-05-03 10:34 ` Borislav Petkov
2024-05-06 10:09 ` Borislav Petkov
2024-05-06 13:14 ` Tom Lendacky
2024-05-06 14:14 ` Borislav Petkov
2024-05-08 8:05 ` Borislav Petkov
2024-05-08 19:13 ` Tom Lendacky
2024-05-08 19:40 ` Tom Lendacky
2024-05-08 19:58 ` Borislav Petkov
2024-05-08 20:09 ` Tom Lendacky
2024-04-24 15:58 ` [PATCH v4 06/15] x86/sev: Perform PVALIDATE using the SVSM when not at VMPL0 Tom Lendacky
2024-04-24 15:58 ` [PATCH v4 07/15] x86/sev: Use the SVSM to create a vCPU when not in VMPL0 Tom Lendacky
2024-04-24 15:58 ` [PATCH v4 08/15] x86/sev: Provide SVSM discovery support Tom Lendacky
2024-04-24 15:58 ` [PATCH v4 09/15] x86/sev: Provide guest VMPL level to userspace Tom Lendacky
2024-04-24 15:58 ` [PATCH v4 10/15] virt: sev-guest: Choose the VMPCK key based on executing VMPL Tom Lendacky
2024-05-01 23:57 ` [svsm-devel] " Jacob Xu
2024-05-02 13:17 ` Tom Lendacky
2024-04-24 15:58 ` [PATCH v4 11/15] configfs-tsm: Allow the privlevel_floor attribute to be updated Tom Lendacky
2024-04-26 20:51 ` Dan Williams
2024-04-24 15:58 ` [PATCH v4 12/15] fs/configfs: Add a callback to determine attribute visibility Tom Lendacky
2024-04-26 21:48 ` Dan Williams
2024-04-29 13:26 ` Tom Lendacky
2024-04-24 15:58 ` [PATCH v4 13/15] x86/sev: Take advantage of configfs visibility support in TSM Tom Lendacky
2024-04-26 21:58 ` Dan Williams [this message]
2024-04-29 13:35 ` Tom Lendacky
2024-04-29 14:28 ` Tom Lendacky
2024-05-01 19:28 ` Dan Williams
2024-05-01 5:18 ` Kuppuswamy Sathyanarayanan
2024-05-01 20:15 ` Dan Williams
2024-05-02 3:40 ` Kuppuswamy Sathyanarayanan
2024-05-02 17:29 ` Dan Williams
2024-05-03 16:10 ` Kuppuswamy Sathyanarayanan
2024-04-24 15:58 ` [PATCH v4 14/15] x86/sev: Extend the config-fs attestation support for an SVSM Tom Lendacky
2024-04-24 15:58 ` [PATCH v4 15/15] x86/sev: Allow non-VMPL0 execution when an SVSM is present Tom Lendacky
2024-05-03 11:37 ` [svsm-devel] " Jörg Rödel
2024-05-03 16:04 ` Borislav Petkov
2024-05-06 7:43 ` Jörg Rödel
2024-05-03 11:38 ` [svsm-devel] [PATCH v4 00/15] Provide SEV-SNP support for running under an SVSM Jörg Rödel
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=662c239680842_b6e02944b@dwillia2-mobl3.amr.corp.intel.com.notmuch \
--to=dan.j.williams@intel.com \
--cc=ashish.kalra@amd.com \
--cc=bp@alien8.de \
--cc=dave.hansen@linux.intel.com \
--cc=hpa@zytor.com \
--cc=linux-coco@lists.linux.dev \
--cc=linux-kernel@vger.kernel.org \
--cc=luto@kernel.org \
--cc=michael.roth@amd.com \
--cc=mingo@redhat.com \
--cc=peterz@infradead.org \
--cc=svsm-devel@coconut-svsm.dev \
--cc=tglx@linutronix.de \
--cc=thomas.lendacky@amd.com \
--cc=x86@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).