From: Dave Hansen <dave.hansen@intel.com>
To: Mike Rapoport <rppt@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>, Andy Lutomirski <luto@kernel.org>,
Dave Hansen <dave.hansen@linux.intel.com>,
"H. Peter Anvin" <hpa@zytor.com>, Ingo Molnar <mingo@redhat.com>,
Mike Rapoport <rppt@linux.ibm.com>,
Thomas Gleixner <tglx@linutronix.de>,
x86@kernel.org, linux-kernel@vger.kernel.org, "Shutemov,
Kirill" <kirill.shutemov@intel.com>,
Kuppuswamy Sathyanarayanan
<sathyanarayanan.kuppuswamy@linux.intel.com>
Subject: Re: [PATCH] x86/mm/ptdump: display page encryption state
Date: Wed, 20 Apr 2022 07:30:01 -0700 [thread overview]
Message-ID: <20356d0e-74cc-1537-71f9-1c3f81e01b9f@intel.com> (raw)
In-Reply-To: <Yl+zdNP/5iHtPolv@kernel.org>
On 4/20/22 00:17, Mike Rapoport wrote:
>> _PAGE_ENC is AMD-specific. Could we do this with a new generic "cc_"
>> function, maybe cc_is_enc()?
>>
>> Something like this would (I think) work for both SEV and TDX:
>>
>> bool cc_is_enc(u64 prot)
>> {
>> return cc_mkdec(prot) != prot;
>> }
> It works for SEV. I can repost with this and you'll confirm it works on
> TDX?
I don't have a TDX setup handy, but Kirill certainly does. I'm sure
he'd be happy to give you a tested-by.
prev parent reply other threads:[~2022-04-20 14:30 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-19 14:35 Mike Rapoport
2022-04-19 18:57 ` Dave Hansen
2022-04-20 7:17 ` Mike Rapoport
2022-04-20 14:30 ` Dave Hansen [this message]
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