From: Tom Lendacky <thomas.lendacky@amd.com>
To: Borislav Petkov <bp@alien8.de>
Cc: linux-kernel@vger.kernel.org, x86@kernel.org,
linux-coco@lists.linux.dev, svsm-devel@coconut-svsm.dev,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>,
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 v3 02/14] x86/sev: Make the VMPL0 checking function more generic
Date: Thu, 18 Apr 2024 13:38:49 -0500 [thread overview]
Message-ID: <36453f2f-3a2f-ae8b-215f-da9972f14d6d@amd.com> (raw)
In-Reply-To: <20240417205048.GHZiA2KGbFFTQFyTAM@fat_crate.local>
On 4/17/24 15:50, Borislav Petkov wrote:
> On Wed, Apr 17, 2024 at 03:35:53PM -0500, Tom Lendacky wrote:
>
> Yap.
>
> The point is, it is calling RMPADJUST. And it does modify RMP
> permissions of a guest page.
>
> Thus, if you prefer, you can go all out and call the helper
>
> rmp_adjust_permissions(unsigned int tgt_vmpl, void *pa)
>
> and make it generic from the get-go.
I think I'll just eliminate the function then and call rmpadjust directly,
that should make it clear.
Thanks,
Tom
>
> And then have the macro wrap around it in order to explain that
> particular use with the macro name.
>
> If it is still not clear what I mean, lemme know and I'll do a diff
> ontop.
>
> Thx.
>
next prev parent reply other threads:[~2024-04-18 18:38 UTC|newest]
Thread overview: 61+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-25 22:26 [PATCH v3 00/14] Provide SEV-SNP support for running under an SVSM Tom Lendacky
2024-03-25 22:26 ` [PATCH v3 01/14] x86/sev: Rename snp_init() in the boot/compressed/sev.c file Tom Lendacky
2024-04-09 17:09 ` Borislav Petkov
2024-04-09 17:44 ` Tom Lendacky
2024-04-09 17:57 ` Borislav Petkov
2024-04-12 16:19 ` Gupta, Pankaj
2024-03-25 22:26 ` [PATCH v3 02/14] x86/sev: Make the VMPL0 checking function more generic Tom Lendacky
2024-04-12 16:41 ` Gupta, Pankaj
2024-04-17 11:46 ` Borislav Petkov
2024-04-17 20:35 ` Tom Lendacky
2024-04-17 20:50 ` Borislav Petkov
2024-04-18 18:38 ` Tom Lendacky [this message]
2024-04-21 7:12 ` Borislav Petkov
2024-03-25 22:26 ` [PATCH v3 03/14] x86/sev: Check for the presence of an SVSM in the SNP Secrets page Tom Lendacky
2024-04-12 17:03 ` Gupta, Pankaj
2024-04-17 20:40 ` Borislav Petkov
2024-04-18 21:17 ` Tom Lendacky
2024-04-22 22:07 ` Borislav Petkov
2024-03-25 22:26 ` [PATCH v3 04/14] x86/sev: Use kernel provided SVSM Calling Areas Tom Lendacky
2024-04-12 16:04 ` Gupta, Pankaj
2024-03-25 22:26 ` [PATCH v3 05/14] x86/sev: Perform PVALIDATE using the SVSM when not at VMPL0 Tom Lendacky
2024-03-25 22:26 ` [PATCH v3 06/14] x86/sev: Use the SVSM to create a vCPU when not in VMPL0 Tom Lendacky
2024-04-12 15:28 ` Gupta, Pankaj
2024-03-25 22:26 ` [PATCH v3 07/14] x86/sev: Provide SVSM discovery support Tom Lendacky
2024-04-15 16:12 ` Gupta, Pankaj
2024-03-25 22:26 ` [PATCH v3 08/14] x86/sev: Provide guest VMPL level to userspace Tom Lendacky
2024-03-25 22:26 ` [PATCH v3 09/14] virt: sev-guest: Choose the VMPCK key based on executing VMPL Tom Lendacky
2024-04-16 4:54 ` Dan Williams
2024-04-16 15:17 ` Tom Lendacky
2024-04-16 15:47 ` Dan Williams
2024-03-25 22:26 ` [PATCH v3 10/14] configfs-tsm: Allow the privlevel_floor attribute to be updated Tom Lendacky
2024-04-16 4:55 ` Dan Williams
2024-04-16 15:23 ` Tom Lendacky
2024-04-16 15:57 ` Dan Williams
2024-04-16 16:17 ` Tom Lendacky
2024-03-25 22:26 ` [PATCH v3 11/14] x86/sev: Extend the config-fs attestation support for an SVSM Tom Lendacky
2024-04-16 5:37 ` Dan Williams
2024-04-16 15:53 ` Tom Lendacky
2024-04-16 16:19 ` Dan Williams
2024-03-25 22:26 ` [PATCH v3 12/14] fs/configfs: Add a callback to determine attribute visibility Tom Lendacky
2024-04-16 5:46 ` Dan Williams
2024-04-16 16:01 ` Tom Lendacky
2024-04-16 18:25 ` Dan Williams
2024-04-16 19:54 ` Tom Lendacky
2024-04-16 20:03 ` Dan Williams
2024-03-25 22:26 ` [PATCH v3 13/14] x86/sev: Hide SVSM attestation entries if not running under an SVSM Tom Lendacky
2024-04-09 18:12 ` Kuppuswamy Sathyanarayanan
2024-04-12 15:52 ` Tom Lendacky
2024-04-15 19:16 ` Tom Lendacky
2024-04-15 19:48 ` Kuppuswamy Sathyanarayanan
2024-04-15 20:13 ` Tom Lendacky
2024-04-15 21:50 ` Kuppuswamy Sathyanarayanan
2024-04-15 22:03 ` Tom Lendacky
2024-04-16 6:09 ` Dan Williams
2024-04-16 6:08 ` Dan Williams
2024-04-16 6:05 ` Dan Williams
2024-04-16 5:47 ` Dan Williams
2024-04-16 16:07 ` Tom Lendacky
2024-04-16 6:03 ` Dan Williams
2024-04-16 16:10 ` Tom Lendacky
2024-03-25 22:26 ` [PATCH v3 14/14] x86/sev: Allow non-VMPL0 execution when an SVSM is present Tom Lendacky
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