From: "Kirill A. Shutemov" <kirill@shutemov.name>
To: Dexuan Cui <decui@microsoft.com>
Cc: ak@linux.intel.com, arnd@arndb.de, bp@alien8.de,
brijesh.singh@amd.com, dan.j.williams@intel.com,
dave.hansen@linux.intel.com, haiyangz@microsoft.com,
hpa@zytor.com, jane.chu@oracle.com,
kirill.shutemov@linux.intel.com, kys@microsoft.com,
linux-arch@vger.kernel.org, linux-hyperv@vger.kernel.org,
luto@kernel.org, mingo@redhat.com, peterz@infradead.org,
rostedt@goodmis.org, sathyanarayanan.kuppuswamy@linux.intel.com,
seanjc@google.com, tglx@linutronix.de, tony.luck@intel.com,
wei.liu@kernel.org, x86@kernel.org, mikelley@microsoft.com,
linux-kernel@vger.kernel.org, Tianyu.Lan@microsoft.com
Subject: Re: [PATCH v3 1/6] x86/tdx: Retry TDVMCALL_MAP_GPA() when needed
Date: Wed, 15 Feb 2023 19:52:48 +0300 [thread overview]
Message-ID: <20230215165248.ivnmo77vfqzixtjm@box.shutemov.name> (raw)
In-Reply-To: <20230206192419.24525-2-decui@microsoft.com>
On Mon, Feb 06, 2023 at 11:24:14AM -0800, Dexuan Cui wrote:
> GHCI spec for TDX 1.0 says that the MapGPA call may fail with the R10
> error code = TDG.VP.VMCALL_RETRY (1), and the guest must retry this
> operation for the pages in the region starting at the GPA specified
> in R11.
>
> When a TDX guest runs on Hyper-V, Hyper-V returns the retry error
> when hyperv_init() -> swiotlb_update_mem_attributes() ->
> set_memory_decrypted() decrypts up to 1GB of swiotlb bounce buffers.
>
> Signed-off-by: Dexuan Cui <decui@microsoft.com>
Looks good to me.
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
--
Kiryl Shutsemau / Kirill A. Shutemov
next prev parent reply other threads:[~2023-02-15 16:52 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-06 19:24 [PATCH v3 0/6] Support TDX guests on Hyper-V Dexuan Cui
2023-02-06 19:24 ` [PATCH v3 1/6] x86/tdx: Retry TDVMCALL_MAP_GPA() when needed Dexuan Cui
2023-02-15 16:52 ` Kirill A. Shutemov [this message]
2023-02-06 19:24 ` [PATCH v3 2/6] x86/tdx: Support vmalloc() for tdx_enc_status_changed() Dexuan Cui
2023-02-17 13:19 ` Kirill A. Shutemov
2023-03-03 7:16 ` Dexuan Cui
2023-02-06 19:24 ` [PATCH v3 3/6] x86/hyperv: Add hv_isolation_type_tdx() to detect TDX guests Dexuan Cui
2023-02-06 19:24 ` [PATCH v3 4/6] x86/hyperv: Support hypercalls for " Dexuan Cui
2023-02-17 6:01 ` Sathyanarayanan Kuppuswamy
2023-02-06 19:24 ` [PATCH v3 5/6] Drivers: hv: vmbus: Support " Dexuan Cui
2023-02-06 19:24 ` [PATCH v3 6/6] x86/hyperv: Fix serial console interrupts for " Dexuan Cui
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=20230215165248.ivnmo77vfqzixtjm@box.shutemov.name \
--to=kirill@shutemov.name \
--cc=Tianyu.Lan@microsoft.com \
--cc=ak@linux.intel.com \
--cc=arnd@arndb.de \
--cc=bp@alien8.de \
--cc=brijesh.singh@amd.com \
--cc=dan.j.williams@intel.com \
--cc=dave.hansen@linux.intel.com \
--cc=decui@microsoft.com \
--cc=haiyangz@microsoft.com \
--cc=hpa@zytor.com \
--cc=jane.chu@oracle.com \
--cc=kirill.shutemov@linux.intel.com \
--cc=kys@microsoft.com \
--cc=linux-arch@vger.kernel.org \
--cc=linux-hyperv@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=luto@kernel.org \
--cc=mikelley@microsoft.com \
--cc=mingo@redhat.com \
--cc=peterz@infradead.org \
--cc=rostedt@goodmis.org \
--cc=sathyanarayanan.kuppuswamy@linux.intel.com \
--cc=seanjc@google.com \
--cc=tglx@linutronix.de \
--cc=tony.luck@intel.com \
--cc=wei.liu@kernel.org \
--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 NNTP newsgroup(s).