[0/4] x86: CET-SS related adjustments

Message ID	33da6f8b-af22-48c8-acce-3aa55c0e0414@suse.com (mailing list archive)
Headers	show Return-Path: <xen-devel-bounces@lists.xenproject.org> Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" <xen-devel-bounces@lists.xenproject.org> Message-ID: <33da6f8b-af22-48c8-acce-3aa55c0e0414@suse.com> Date: Wed, 28 Feb 2024 14:50:49 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Content-Language: en-US To: "xen-devel@lists.xenproject.org" <xen-devel@lists.xenproject.org> Cc: Andrew Cooper <andrew.cooper3@citrix.com>, Wei Liu <wl@xen.org>, =?utf-8?q?Roger_Pau_Monn=C3=A9?= <roger.pau@citrix.com> From: Jan Beulich <jbeulich@suse.com> Subject: [PATCH 0/4] x86: CET-SS related adjustments Autocrypt: addr=jbeulich@suse.com; keydata= xsDiBFk3nEQRBADAEaSw6zC/EJkiwGPXbWtPxl2xCdSoeepS07jW8UgcHNurfHvUzogEq5xk hu507c3BarVjyWCJOylMNR98Yd8VqD9UfmX0Hb8/BrA+Hl6/DB/eqGptrf4BSRwcZQM32aZK 7Pj2XbGWIUrZrd70x1eAP9QE3P79Y2oLrsCgbZJfEwCgvz9JjGmQqQkRiTVzlZVCJYcyGGsD /0tbFCzD2h20ahe8rC1gbb3K3qk+LpBtvjBu1RY9drYk0NymiGbJWZgab6t1jM7sk2vuf0Py O9Hf9XBmK0uE9IgMaiCpc32XV9oASz6UJebwkX+zF2jG5I1BfnO9g7KlotcA/v5ClMjgo6Gl MDY4HxoSRu3i1cqqSDtVlt+AOVBJBACrZcnHAUSuCXBPy0jOlBhxPqRWv6ND4c9PH1xjQ3NP nxJuMBS8rnNg22uyfAgmBKNLpLgAGVRMZGaGoJObGf72s6TeIqKJo/LtggAS9qAUiuKVnygo 3wjfkS9A3DRO+SpU7JqWdsveeIQyeyEJ/8PTowmSQLakF+3fote9ybzd880fSmFuIEJldWxp Y2ggPGpiZXVsaWNoQHN1c2UuY29tPsJgBBMRAgAgBQJZN5xEAhsDBgsJCAcDAgQVAggDBBYC AwECHgECF4AACgkQoDSui/t3IH4J+wCfQ5jHdEjCRHj23O/5ttg9r9OIruwAn3103WUITZee e7Sbg12UgcQ5lv7SzsFNBFk3nEQQCACCuTjCjFOUdi5Nm244F+78kLghRcin/awv+IrTcIWF hUpSs1Y91iQQ7KItirz5uwCPlwejSJDQJLIS+QtJHaXDXeV6NI0Uef1hP20+y8qydDiVkv6l IreXjTb7DvksRgJNvCkWtYnlS3mYvQ9NzS9PhyALWbXnH6sIJd2O9lKS1Mrfq+y0IXCP10eS FFGg+Av3IQeFatkJAyju0PPthyTqxSI4lZYuJVPknzgaeuJv/2NccrPvmeDg6Coe7ZIeQ8Yj t0ARxu2xytAkkLCel1Lz1WLmwLstV30g80nkgZf/wr+/BXJW/oIvRlonUkxv+IbBM3dX2OV8 AmRv1ySWPTP7AAMFB/9PQK/VtlNUJvg8GXj9ootzrteGfVZVVT4XBJkfwBcpC/XcPzldjv+3 HYudvpdNK3lLujXeA5fLOH+Z/G9WBc5pFVSMocI71I8bT8lIAzreg0WvkWg5V2WZsUMlnDL9 mpwIGFhlbM3gfDMs7MPMu8YQRFVdUvtSpaAs8OFfGQ0ia3LGZcjA6Ik2+xcqscEJzNH+qh8V m5jjp28yZgaqTaRbg3M/+MTbMpicpZuqF4rnB0AQD12/3BNWDR6bmh+EkYSMcEIpQmBM51qM EKYTQGybRCjpnKHGOxG0rfFY1085mBDZCH5Kx0cl0HVJuQKC+dV2ZY5AqjcKwAxpE75MLFkr wkkEGBECAAkFAlk3nEQCGwwACgkQoDSui/t3IH7nnwCfcJWUDUFKdCsBH/E5d+0ZnMQi+G0A nAuWpQkjM1ASeQwSHEeAWPgskBQL Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit
Series	x86: CET-SS related adjustments \| expand [0/4] x86: CET-SS related adjustments [1/4] x86: remove redundant XEN_SHSTK check from reinit_bsp_stack() [2/4] x86: record SSP at non-guest entry points [3/4] x86/traps: use entry_ssp in fixup_exception_return() [4/4] x86: prefer shadow stack for producing call traces

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33da6f8b-af22-48c8-acce-3aa55c0e0414@suse.com (mailing list archive)

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Message-ID: <33da6f8b-af22-48c8-acce-3aa55c0e0414@suse.com>
Date: Wed, 28 Feb 2024 14:50:49 +0100
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To: "xen-devel@lists.xenproject.org" <xen-devel@lists.xenproject.org>
Cc: Andrew Cooper <andrew.cooper3@citrix.com>, Wei Liu <wl@xen.org>,
	=?utf-8?q?Roger_Pau_Monn=C3=A9?= <roger.pau@citrix.com>
From: Jan Beulich <jbeulich@suse.com>
Subject: [PATCH 0/4] x86: CET-SS related adjustments
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Series

Message

Jan Beulich Feb. 28, 2024, 1:50 p.m. UTC

One might think of this as follow-on to XSA-451, but that's not quite
the right order of events.

There are a few open aspects; see individual patches.

1: remove redundant XEN_SHSTK check from reinit_bsp_stack()
2: record SSP at non-guest entry points
3: traps: use entry_ssp in fixup_exception_return()
4: prefer shadow stack for producing call traces

Jan